EN Series Datasheet by Honeywell Sensing and Productivity Solutions
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Datasheet
MICRO SWITCH™ Environmentally Sealed Limit Switches
EN Series
DESCRIPTION
The Honeywell MICRO SWITCH™ Series of EN limit switches
are bushing mount designed, manufactured, and qualified to
MIL-PRF-8805 standards. These products provide a durable
switch for commercial and military aircraft as well as commercial
and military ground-based equipment. Other applications
include off-road equipment where severe environments are
encountered.
The EN Series of switches have proven to deliver consistent and
reliable operation in harsh environments on critical applications
for more than 65 years.
VALUE TO CUSTOMERS
• Precise and reliable position indication of critical applications
on aircraft and military systems
DIFFERENTIATION
• MICRO SWITCH™ EN Series’ products are highly
configurable; offering a variety of integral actuators, electrical
circuitries, and electrical terminations
FEATURES
• Circuitry options from 1PST (one-pole single throw) circuit to
6PDT (six-pole double throw) circuits for position indication of
different independent circuits or providing redundant circuit
capabilities
• Rugged stainless steel housing and bushing
• All-metal drive train for consistent operating characteristics at
high or low temperatures
• Most EN catalog listings are MIL-PRF-8805 compliant for
stringent military and non-military applications
• MIL-PRF-8805 symbol 4 (resilient) sealing to keep dust, water,
and ice from entering the switch enclosure
• Gold-bifurcated, gold-plated, or silver-alloy switch contacts
for reliably controlling electrical loads from less than 0.5 A [low
energy/logic level] up to 15 A (power duty)
• Wide temperature range from -54 °C to 125 °C [-65 °F to
257 °F] for sea level or high altitude military or commercial
applications
• Assortment of switch actuators and electrical terminations
• Miniature package size [400EN Series and 600EN Series]
reduces housing diameter by 30 % for smaller space required
on equipment
POTENTIAL APPLICATIONS
• Landing gear systems for commercial and military aircraft
including helicopters
- WOW switch (Weight-on-Wheels) for landing gear
- Up-lock and down-lock sensing
- Landing gear bay doors closed/locked
• External doors and hatches for commercial and military
aircraft including helicopters
- Closed and locked indication for passenger entry/exit doors,
cargo bay doors, and/or other doors or hatches (refueling
door, APU air inlet door)
• Military ground vehicles
- Doors or hatches closed/locked or open
• Off-road construction equipment
- Doors or panels present/closed/open
- Up-stop or down-stop limits
PORTFOLIO
Honeywell offers many Series of MICRO SWITCH™ sealed
switches including the HM Series, SE Series, XE Series,
HS Series, HE Series, and HR Series.
Sensing and Productivity Solutions
003125
Issue 1

2 sensing.honeywell.com
MICRO SWITCH™ Environmentally Sealed Limit Switches, EN Series
Table 1. Specifications
Characteristic Parameter
Description Environmentally sealed military qualified limit switch series (MIL-PRF-8805)
Housing & bushing material 300 Series stainless steel
Contact material Silver alloy, gold plated, gold bifurcated
Mechanical endurance 25,000 cycles min.
Electrical endurance 25,000 cycles min. @ rated load
Circuitry 1PST (one-pole single throw) to 6PDT (six-pole double throw); reference Figure 2, page 3
Electrical rating Up to 15 A @ 28 Vdc; reference Table 2, page 2
Dielectric strength (initial) 1000 V RMS; 500 μA max. leakage
Insulation resistance (initial) 500 Vdc; 1000 Megohms min.
Environmental sealing Symbol 4, resilient seal per MIL-PRF-8805
Temperature range (std.) -54 °C to 85 °C [-65 °F to 185 °F]
Temperature range (opt.) -54 °C to 125 °C [-65 °F to 257 °F]
Shock Symbol M (100 g) per MIL-PRF-8805
Vibration Symbol 1, 10 g peak (10 Hz to 500 Hz)
Standards Design conforms to MIL-PRF-8805
Table 2. Electrical Ratings
Rating
Code
Sea Level @ 28 Vdc Altitude 50,000 ft
Inrush Motor Res. Ind. Inrush Motor² Res. Ind.
A 24 4 4 2 24 4 4¹ 2
B 36 6 10 3 36 6 10 3
C 30 5 15 10 30 5 15 10
D 24 4 5 3 –
E – 1 0.5 – 1 0.5
F N/A 4 7 4 N/A 4 7 2.5
1 5 A for rotary switches.
² Application information only.² APPLICATION INFORMATION ONLY

Honeywell Sensing and Productivity Solutions 3
MICRO SWITCH™ Environmentally Sealed Limit Switches, EN Series
STANDARD SWITCHES (see pages 4 and 5)
While the standard EN Series provides a wide variety of products,
Honeywell offers a miniature EN Series and a special EN Series
per the following descriptions.
MINIATURE SWITCHES (see pages 6 through 8)
Miniature type EN switches meet the demand for smaller size
and lighter weight without sacrificing performance or electrical
capacity. These types are of the same construction, seal, and
materials as the standard size EN switches.
Type 400EN switches are directly interchangeable with their
standard size EN counterpart, yet the housings are smaller in
diameter and lighter in weight. The miniature-size housing is 7,92
mm [0.312 in] smaller in diameter, and the switch weighs 9,1 g
[0.3 oz] less.
SWITCHES WITH SPECIAL REQUIREMENTS
(see page 9)
High velocity actuation
This switch (1EN231-6) is designed to withstand near ‘‘hammer-
blow’’ actuation as is found in over-center locking mechanisms. It
is dimensionally interchangeable with standard listing 1EN1-6.
Low force operation
Special spring construction within this switch (1EN51-6) reduces
the normal 6 lb to 12 lb (26,7 N to 53,4 N) EN operating force to
3 lb to 6 lb (13,3 N to 26,7 N). This switch is also dimensionally
interchangeable with the standard size 1EN1-6.
Increased overtravel
A longer plunger and bushing on the switch (1EN61-6) extends
the EN overtravel capabilities from the normal 6,35 mm to
21,8 mm [0.25 in to 0.86 in]. The longer bushing also permits
additional adjustment of the plunger position or installations
where an increased bushing length is required.
High impact shock
Catalog listing, 1EN75-R3 (M8805/65-001), has been qualified
to MIL-PRF-8805, including high impact shock class H. Other
switches rated for high impact shock applications incorporate
the same plunger mechanism and internal switch design as
used in the 1EN75-R3 and are expected to conform to the same
requirements.
TERMINATION
Termination is specified in the order guides. Leadwires are
generally six feet long, and of the gage and military specifications
noted in the order guides.
MOUNTING
Plunger actuator switches mount through 5⁄8 in [Ø 0.625 in] or
15⁄32 in [Ø 0.469 in] holes. Lock washer, keyed washer, and wire
lock hexagon mounting nuts lock the switches in their mounting
holes.
Rotary-actuated switches mount through 15⁄32 in [Ø 0.469 in]
holes. A lock washer, wire lock hexagon nut, and locating pins on
the top of the housing prevent switch rotation.
Figure 1. Typical EN Switch Construction
Figure 2. Circuitry Diagrams

4 sensing.honeywell.com
MICRO SWITCH™ Environmentally Sealed Limit Switches, EN Series
Table 3. EN Series Order Guide - Standard Series
Actuator
Circuitry
Termination
Electrical Rating
Code**
Catalog Listing
Military Number or
Note
O.F. N [lb]
R.F. min. N [lb]
F.P. nom. mm [in]
P.T. max. mm [in]
O.T. min. mm [in]
D.T. max. mm [in]
Bushing Thread Size
Housing Height
mm [in]
Housing Diameter or
Length mm [in]
Replacement
Mounting Hardware
Packet
PIN PLUNGER
2PDT
Leadwire #20
AWG (side
exit) MIL-
DTL-22759/7
A [4 A] 1EN1-6 MS24331-1
(8805/40)
26,7 to
53,4
[6 to 12]
17,8 [4] 35,0
[1.38]
1,02
[0.040]
6,35
[0.250]
0,51
[0.020]
0.625-24
UNEF
24,9
[0.980]
Ø 25,4
[1.0] 19PA8
2PDT Screw (4-48
thread) A [4 A] 1EN1-S –
26,7 to
53,4
[6 to 12]
17,8 [4] 35,0
[1.38]
1,02
[0.040]
6,35
[0.250]
0,51
[0.020]
0.625-24
UNEF
38,2
[1.51]
Ø 25,4
[1.0]
19PA78-
EN
2PDT Connector
(side exit) A [4 A] 1EN42-R –
26,7 to
53,4
[6 to 12]
17,8 [4] 35,0
[1.38]
1,02
[0.040]
6,35
[0.250]
0,51
[0.020]
0.625-24
UNEF
27,9
[1.10]
61,0
[2.4]
19PA78-
EN
2PDT Connector
(bottom exit) A [4 A] 1EN43-R –
26,7 to
53,4
[6 to 12]
17,8 [4] 35,0
[1.38]
1,02
[0.040]
6,35
[0.250]
0,51
[0.020]
0.625-24
UNEF
53,3
[2.1]
Ø 25,4
[1.0]
19PA78-
EN
2PDT
Leadwire #18
AWG (side
exit) MIL-
DTL-22759/7
B [10 A] 2EN1-6 MS24331-2
(8805/40)
26,7 to
53,4
[6 to 12]
22,3 [5] 35,0
[1.38]
1,27
[0.050]
6,35
[0.250]
0,89
[0.035]
0.625-24
UNEF
38,1
[1.50]
Ø 38,1
[1.50] 19PA8
1PDT-
DB
Leadwire #18
AWG (side
exit) MIL-
DTL-22759/7
C [15 A] 3EN1-6 MS24331-3
(8805/40)
26,7 to
53,4
[6 to 12]
22,3 [5] 35,0
[1.38]
1,52
[0.060]
6,35
[0.250]
0,89
[0.035]
0.625-24
UNEF
33,3
[1.31]
Ø 38,1
[1.50] 19PA8
2PDT-
DB
Leadwire #18
AWG (side
exit) MIL-
DTL-22759/7
C [15 A] 4EN1-6 MS24331-4
(8805/40)
26,7 to
53,4
[6 to 12]
22,3 [5] 35,0
[1.38]
1,78
[0.070]
6,35
[0.250]
1,14
[0.045]
0.625-24
UNEF
43,2
[1.70]
Ø 38,1
[1.50] 19PA8
4PDT
Leadwire #20
AWG (side
exit) MIL-
DTL-22759/7
A [4 A] 5EN1-6 –
26,7 to
53,4
[6 to 12]
17,8 [4] 35,0
[1.38]
1,02
[0.040]
6,35
[0.250]
0,76
[0.030]
0.625-24
UNEF
30,5
[1.20]
Ø 38,1
[1.50]
19PA78-
EN
BALL BEARING
PLUNGER
2PDT
Leadwire #20
AWG (side
exit) MIL-
DTL-22759/7
A [4 A] 2001EN1-6 –
26,7 to
53,4
[6 to 12]
17,8 [4] 39,1
[1.54]
1,02
[0.040]
6,35
[0.250]
0,51
[0.020]
0.625-24
UNEF
24,9
[0.980]
Ø 25,4
[1.0] 19PA8
ROLLER PLUNGER*
2PDT
Leadwire #20
AWG (side
exit) MIL-
DTL-22759/7
A [4 A] 21EN9-6* FAA-PMA
26,7 to
53,4
[6 to 12]
17,8 [4] 45,2
[1.78]
1,02
[0.040]
6,35
[0.250]
0,51
[0.020]
0.625-24
UNEF
24,9
[0.980]
Ø 25,4
[1.0]
19PA115-
EN
2PDT
Leadwire #18
AWG (side exit)
MIL-W-22759/7
B [10 A] 22EN9-6* –
26,7 to
53,4
[6 to 12]
22,3 [5] 45,2
[1.78]
1,27
[0.050]
6,35
[0.250]
0,89
[0.035]
0.625-24
UNEF
38,1
[1.5]
Ø 38,1
[1.5]
19PA115-
EN
2PDT-
DB
Leadwire #18
AWG (side exit)
MIL-W-22759/7
C [15 A] 24EN9-6* –
26,7 to
53,4
[6 to 12]
22,3 [5] 45,2
[1.78]
1,78
[0.070]
6,35
[0.250]
1,14
[0.045]
0.625-24
UNEF
43,2
[1.70]
Ø 38,1
[1.50]
19PA115-
EN
4PDT
Leadwire #20
AWG (side exit)
MIL-W-22759/7
A [4 A] 25EN9-6* FAA-PMA
26,7 to
53,4
[6 to 12]
17,8 [4] 45,2
[1.78]
1,02
[0.040]
6,35
[0.250]
0,76
[0.030]
0.625-24
UNEF
30,5
[1.20]
Ø 38,1
[1.50]
19PA115-
EN
O.F.- Operating Force; R.F.- Release Force; F.P.-Free Position; P.T.-Pretravel; O.T.-Overtravel; D.T.-Differential Travel
* Roller plunger field adjustable in 45° increments.
** Reference Table 2, page 2, for additional detail.

Honeywell Sensing and Productivity Solutions 5
MICRO SWITCH™ Environmentally Sealed Limit Switches, EN Series
Table 3. EN Series Order Guide - Standard Series, continued
Actuator
Circuitry
Termination
Electrical Rating
Code**
Catalog Listing
Military Number or
Note
O.T. Nm [in-lb]
R.T. min. Nm [in-lb]
P.T. degrees [nom.]
T.T. degrees [nom.]
D.T. max. degrees
Bushing Thread Size
Housing Height
mm [in]
Housing Diameter or
Length mm [in]
Replacement
Mounting Hardware
Packet
ROTARY ROLLER LEVER
2PDT
Leadwire #20 AWG
(side exit)
MIL-W-22759/7
D [5 A] 31EN11-6
(CW)
MS21320-1
(8805/48)
1,36 to
2,82 [12
to 25]
1,02 [9] 13° 45° 4° 0.469-32
UNS
54,8
[2.16]
Ø 25,4
[1.0] 19PA10
2PDT
Leadwire #20 AWG
(side exit)
MIL-W-22759/7
D [5 A] 31EN1-6
(CCW)
MS21320-2
(8805/48)
1,36 to
2,82 [12
to 25]
1,02 [9] 13° 45° 4° 0.469-32
UNS
54,8
[2.16]
Ø 25,4
[1.0] 19PA10
2PDT
Leadwire #18 AWG
(side exit)
MIL-W-22759/7
B [10 A] 32EN11-6
(CW)
MS21320-3
(8805/48)
1,36 to
2,82 [12
to 25]
1,02 [9] 20° 45° 6° 0.469-32
UNS
68,6
[2.70]
Ø 38,1
[1.5] 19PA10
2PDT
Leadwire #18 AWG
(side exit)
MIL-W-22759/7
B [10 A] 32EN1-6
(CCW)
MS21320-4
(8805/48)
1,36 to
2,82 [12
to 25]
1,02 [9] 20° 45° 6° 0.469-32
UNS
68,6
[2.70]
Ø 38,1
[1.5] 19PA10
2PDT-
DB
Leadwire #18 AWG
(side exit) MIL-
W-22759/7
C [15 A] 34EN11-6
(CW)
MS21320-7
(8805/48)
1,36 to
2,82 [12
to 25]
0,9 [8] 15° 45° 10° 0.469-32
UNS
71,6
[2.82]
Ø38,1
[1.5] 19PA10
2PDT-
DB
Leadwire #18 AWG
(side exit)
MIL-W-22759/7
C [15 A] 34EN1-6
(CCW)
MS21320-8
(8805/48)
1,36 to
2,82 [12
to 25]
0,9 [8] 15° 45° 10° 0.469-32
UNS
71,6
[2.82]
Ø 38,1
[1.5] 19PA10
2PDT
Leadwire #18 AWG
(side exit)
MIL-W-22759/7
E [1 A] 35EN27-4
(CW)
Gold-
bifurcated
contacts
1,36 to
2,82 [12
to 25]
1,02 [9] 20° 45° 6° 0.469-32
UNS
60,7
[2.39]
Ø 38,1
[1.5] 19PA10
2PDT
Leadwire #18 AWG
(side exit)
MIL-W-22759/7
E [1 A] 35EN24-4
(CCW)
FAA-PMA,
Gold-
bifurcated
contacts
1,36 to
2,82 [12
to 25]
1,02 [9] 20° 45° 6° 0.469-32
UNS
60,7
[2.39]
Ø 38,1
[1.5] 19PA10
ROTARY LINKAGE LEVER1
2PDT
Leadwire #20 AWG
(side exit)
MIL-W-22759/7
A [4 A] 41EN1-61MS24420-1 0,34 [3] – Nom. 35° actuation
in 360° rotation 12° 0.469-32
UNS
26,7
[1.05]
Ø 25,4
[1.0] 19PA10
2PDT
Leadwire #18 AWG
(side exit)
MIL-W-22759/7
B [10 A] 42EN1-61MS24420-2 0,56 [5] – Nom. 35° actuation
in 360° rotation 12° 0.469-32
UNS
42,7
[1.68]
Ø 38,1
[1.5] 19PA10
2PDT-
DB
Leadwire #18 AWG
(side exit)
MIL-W-22759/7
C [15 A] 44EN1-61MS24420-4 1,13 [10] – Nom. 35° actuation
in 360° rotation 20° 0.469-32
UNS
46,2
[1.82]
Ø 38,1
[1.5] 19PA10
O.T.- Operating Torque; R.T.- Release Torque; P.T.-Pretravel; T.T.-Total Travel; D.T.-Differential Travel
1 These rotary linkage lever switches are continous rotation CW or CCW.
** Reference Table 2, page 2, for additional detail.

6 sensing.honeywell.com
MICRO SWITCH™ Environmentally Sealed Limit Switches, EN Series
Table 4. EN Series Order Guide - Miniature Series
Actuator
Circuitry
Termination
Electrical Rating
Code**
Catalog Listing
Military Number or
note
O.F. N [lb]
R.F. min. N [lb]
F.P. nom. mm [in]
P.T. max. mm [in]
O.T. min. mm [in]
D.T. max. mm [in]
Bushing Thread Size
Housing Height
mm [in]
Housing Diameter or
Length mm [in]
Replacement
Mounting Hardware
Packet
PIN PLUNGER
2PDT
Leadwire
#20 AWG
(side exit)
MIL-
W-22759/7
F [7 A] 402EN1-6 MS21321-1
8805/39
26,7 to
53,4
[6 to
12]
17,8 [4] 35,0
[1.38]
1,02
[0.040]
6,35
[0.250]
0,51
[0.020]
0.625-24
UNEF
24,9
[0.98]
Ø 17,5
[0.69] –
4PDT
Leadwire
#20 AWG
(side exit)
MIL-
W-22759/7
F [7 A] 404EN1-6 MS21321-2
8805/39
26,7 to
53,4
[6 to
12]
17,8 [4] 35,0
[1.38]
1,02
[0.040]
6,35
[0.250]
0,51
[0.020]
0.625-24
UNEF
30,5
[1.2]
Ø 25,4
[1.0] –
2PDT
Leadwire
#20 AWG
(side exit)
MIL-
W-22759/7
F [7 A] 602EN1-6 MS27240-1
8805/43
26,7 to
53,4
[6 to
12]
17,8 [4] 22,3
[0.88]
1,02
[0.040]
3,18
[0.125]
0,51
[0.020]
0.469-32
UNS
25,4
[1.0]
Ø 17,5
[0.69] 19PA9
2PDT Solder pins F [7 A] 602EN142 –
26,7 to
53,4 [6
to 12]
17,8 [4] 22,3
[0.88]
1,02
[0.040]
3,18
[0.125]
0,51
[0.020]
0.469-32
UNS
25,4
[1.0]
Ø 17,5
[0.69] 19PA9
2PDT
Leadwire
#20 AWG
(side exit)
MIL-
W-22759/7
E [1 A] 602EN222-6*
MS27240-5
8805/43,
Gold-plated
contacts
26,7 to
53,4
[6 to
12]
17,8 [4] 22,3
[0.88]
1,02
[0.040]
3,18
[0.125]
0,51
[0.020]
0.469-32
UNS
25,4
[1.0]
Ø 17,5
[0.69] 19PA9
2PDT
Leadwire
#20 AWG
(side exit)
MIL-
W-22759/7
F [7 A] 602EN602-6 FAA-PMA
8,9 to
17,8
[2 to 4]
4,7 [1] 37,1
[1.46]
nom.
0,38
[0.015]
6,35
[0.250]
0,51
[0.020]
0.469-32
UNS
25,4
[1.0]
Ø 17,5
[0.69] 19PA9
4PDT
Leadwire
#20 AWG
(side exit)
MIL-
W-22759/7
F [7 A] 604EN1-6 MS27240-2
8805/43
26,7 to
53,4
[6 to
12]
17,8 [4] 22,3
[0.88]
1,02
[0.040]
3,18
[0.125]
0,51
[0.020]
0.469-32
UNS
30,5
[1.2]
Ø 25,4
[1.0] 19PA9
4PDT
Leadwire
#20 AWG
(side exit)
MIL-
W-22759/7
E [1 A] 604EN222-6*
MS27240-6
8805/43,
Gold-plated
contacts
26,7 to
53,4
[6 to
12]
17,8 [4] 22,3
[0.88]
1,02
[0.040]
3,18
[0.125]
0,51
[0.020]
0.469-32
UNS
30,5
[1.2]
Ø 25,4
[1.0] 19PA9
O.F.- Operating Force; R.F.- Release Force; F.P.-Free Position; P.T.-Pretravel; O.T.-Overtravel; D.T.-Differential Travel
* Each pole (basic switch) has gold-plated silver contacts for controlling low energy loads. If the switch is applied to a power-duty application, the switch is
not recommended to control a low energy load.
** Reference Table 2, page 2, for additional detail.

Honeywell Sensing and Productivity Solutions 7
MICRO SWITCH™ Environmentally Sealed Limit Switches, EN Series
Actuator
Circuitry
Termination
Electrical Rating
Code**
Catalog Listing
Military Number or
note
O.F. N [lb]
R.F. min. N [lb]
F.P. nom. mm [in]
P.T. max. mm [in]
O.T. min. mm [in]
D.T. max. mm [in]
Bushing Thread Size
Housing Height
mm [in]
Housing Diameter or
Length mm [in]
Replacement
Mounting Hardware
Packet
ROLLER PLUNGER*
2PDT
Leadwire
#20 AWG
(side exit)
MIL-
W-22759/7
F [7 A] 422EN1-6* –
26,7 to
53,4
[6 to
12]
17,8 [4] 45,2
[1.78]
1,02
[0.040]
6,35
[0.250]
0,51
[0.020]
0.625-24
UNEF
24,9
[0.98]
Ø 17,5
[0.69]
19PA115-
EN
4PDT
Leadwire
#20 AWG
(side exit)
MIL-
W-22759/7
F [7 A] 424EN1-6* –
26,7 to
53,4
[6 to
12]
17,8 [4] 45,2
[1.78]
1,02
[0.040]
6,35
[0.250]
0,51
[0.020]
0.625-24
UNEF
30,5
[1.2]
Ø 25,4
[1.0] 19PA8
6
PDT
Leadwire
#20 AWG
(side exit)
MIL-
W-22759/7
F [7 A] 426EN9-8* –
26,7 to
53,4
[6 to
12]
17,8 [4] 45,2
[1.78]
1,02
[0.040]
6,35
[0.250]
0,76
[0.030]
0.625-24
UNEF
32,7
[1.29]
Ø 38,1
[1.5] 19PA8
2PDT
Leadwire
#20 AWG
(side exit)
MIL-
W-22759/7
F [7 A] 622EN1-6* MS27240-3
8805/43
26,7 to
53,4
[6 to
12]
17,8 [4] 32,9
[1.30]
1,02
[0.040]
3,18
[0.125]
0,51
[0.020]
0.469-32
UNS
25,4
[1.0]
Ø 17,5
[0.69] 19PA9
2PDT
Leadwire
#20 AWG
(side exit)
MIL-
W-22759/7
E [1 A] 622EN222-6*1
MS27240-7
8805/43,
Gold-plated
contacts
26,7 to
53,4
[6 to
12]
17,8 [4] 32,9
[1.30]
1,02
[0.040]
3,18
[0.125]
0,51
[0.020]
0.469-32
UNS
25,4
[1.0]
Ø 17,5
[0.69] 19PA9
4PDT
Leadwire
#20 AWG
(side exit)
MIL-
W-22759/7
F [7 A] 624EN1-6* MS27240-4
8805/43
26,7 to
53,4
[6 to
12]
17,8 [4] 32,9
[1.30]
1,02
[0.040]
3,18
[0.125]
0,51
[0.020]
0.469-32
UNS
30,5
[1.2]
Ø 25,4
[1.0] 19PA9
4PDT
Leadwire
#20 AWG
(side exit)
MIL-
W-22759/7
E [1 A] 624EN222-6* 1
MS27240-8
8805/43
Gold-plated
contacts
26,7 to
53,4
[6 to
12]
17,8 [4] 32,9
[1.30]
1,02
[0.040]
3,18
[0.125]
0,51
[0.020]
0.469-32
UNS
30,5
[1.2]
Ø 25,4
[1.0] 19PA9
O.F.- Operating Force; R.F.- Release Force; F.P.-Free Position; P.T.-Pretravel; O.T.-Overtravel; D.T.-Differential Travel
1 Each pole (basic switch) has gold-plated silver contacts for controlling low energy loads. If the switch is applied to a power-duty application, the switch is not
recommended to control a low energy load.
* Roller plunger field adjustable in 45° increments.
** Reference Table 2, page 2, for additional detail.
Table 4. EN Series Order Guide - Miniature Series, continued

8 sensing.honeywell.com
MICRO SWITCH™ Environmentally Sealed Limit Switches, EN Series
Table 4. EN Series Order Guide - Miniature Series, continued
Actuator
Circuitry
Termination
Electrical Rating
Code**
Catalog Listing
Military Number or
note
O.T. Nm [in-lb]
R.T. min. Nm [in-lb]
P.T. degrees [nom.]
T.T. degrees [nom.]
D.T. max. degrees
Bushing Thread Size
Housing Height
mm [in]
Housing Diameter or
Length mm [in]
Replacement
Mounting Hardware
Packet
ROTARY LINKAGE LEVER1
2PDT
Leadwire #20 AWG
(side exit) MIL-
W-22759/7
F [7 A] 442EN1-61– 0,34 [3] – Nom. 50° actuation
in 360° rotation 12° 0.469-32
UNS
25,4
[1.0]
Ø 17,5
[0.69] –
4PDT
Leadwire #20 AWG
(side exit) MIL-
W-22759/7
F [7 A] 444EN1-61– 0,34 [3] – Nom. 50° actuation
in 360° rotation 12° 0.469-32
UNS
30,23
[1.19]
Ø 17,5
[0.69] –
4PDT
Leadwire #20 AWG
(side exit) MIL-
W-22759/7
F [7 A] 444EN49-61– 0,34 [3] – Nom. 50° actuation
in 360° rotation 12° 0.469-32
UNS
30,23
[1.19]
Ø 17,5
[0.69] –
4PDT
Leadwire #20 AWG
(side exit) MIL-
W-22759/7
E [1 A] 444EN222-61,2 Gold-plated
contacts 0,34 [3] – Nom. 50° actuation
in 360° rotation 12° 0.469-32
UNS
30,23
[1.19]
Ø 17,5
[0.69] –
O.T.- Operating Torque; R.T.- Release Torque; P.T.-Pretravel; T.T.-Total Travel; D.T.-Differential Travel
1 These rotary linkage lever switches are continous rotation CW or CCW.
2 Each pole (basic switch) has gold-plated silver contacts for controlling low energy loads. If the switch is applied to a power-duty application, the switch is
not recommended to control a low energy load.
** Reference Table 2, page 2, for additional detail.

Honeywell Sensing and Productivity Solutions 9
MICRO SWITCH™ Environmentally Sealed Limit Switches, EN Series
Table 5. EN Series Order Guide - Special Purpose Series
Utilization
Actuator
Circuitry
Termination
Electrical Rating
Code **
Catalog Listing
Military Number or
note
O.F. N [lb]
R.F. min. N [lb]
F.P. nom. mm [in]
P.T. max. mm [in]
O.T. min. mm [in]
D.T. max. mm [in]
Bushing Thread Size
Housing Height
mm [in]
Housing Diameter or
Length mm [in]
Replacement
Mounting Hardware
Packet
HIGH VELOCITY
ACTUATION
PIN PLUNGER
2PDT
Leadwire #20
AWG (side exit)
MIL-W-22759/7
A [4 A] 1EN231-6 –
26,7 to
53,4 [6
to 12]
17,8
[4]
35,0
[1.38]
1,02
[0.040]
5,84
[0.230]
0,51
[0.020]
0.625-24
UNEF
24,9
[0.98]
25,4
[1.0]
19PA78-
EN
LOW FORCE
OPERATION
2PDT
Leadwire #20
AWG (side exit)
MIL-W-22759/7
A [4 A] 1EN51-6 –
13,3 to
26,7
[3 to 6]
8,89
[2]
35,0
[1.38]
1,02
[0.040]
6,35
[0.250]
0,51
[0.020]
0.625-24
UNEF
24,9
[0.98]
25,4
[1.0]
19PA78-
EN
INCREASED
OVERTRAVEL
2PDT
Leadwire #20
AWG (side exit)
MIL-W-81044/9
Type E
A [4 A] 1EN61-6 FAA-PMA
26,7 to
53,4 [6
to 12]
17,8
[4]
35,0
[1.38]
1,02
[0.040]
12,70
[0.500]
0,51
[0.020]
0.625-24
UNEF
24,9
[0.98]
25,4
[1.0]
19PA78-
EN
INCREASED SHOCK RESISTANCE
2PDT
7 Pin bottom
exit, MIL. type
connector
A [4 A] 1EN75-R –
26,7 to
53,4 [6
to 12]
17,8
[4]
9,53
[0.375]
1,02
[0.040]
6,35
[0.250]
0,51
[0.020]
1.0-20
UNEF
57,9
[2.28]
Ø 25,4
[1.0]
19PA121-
EN
2PDT
7 Pin side exit,
MIL. type con-
nector
A [4 A] 1EN76-R –
26,7 to
53,4 [6
to 12]
17,8
[4]
9,53
[0.375]
1,02
[0.040]
6,35
[0.250]
0,51
[0.020]
1.0-20
UNEF
36,6
[1.44]
26,7
[1.05]
19PA121-
EN
2PDT
7 Pin bottom
exit, MIL. type
connector
D [5 A] 1EN75-R3 M8805/
65-001
26,7 to
53,4 [6
to 12]
17,8
[4]
9,53
[0.375]
1,02
[0.040]
6,35
[0.250]
0,51
[0.020]
1.0-20
UNEF
73,4
[2.89]
Ø 25,4
[1.0]
19PA121-
EN
ROLLER PLUNGER*
2PDT
7 Pin bottom
exit, MIL. type
connector
A [4 A] 21EN75-R1* –
26,7 to
53,4 [6
to 12]
17,8
[4]
19,8
[0.78]
1,02
[0.040]
6,35
[0.250]
0,51
[0.020]
1.0-20
UNEF
57,9
[2.28]
Ø 25,4
[1.0]
19PA121-
EN
2PDT
Leadwire #20
AWG (side exit)
MIL-W-22759/7
A [4 A] 21EN75-2* –
26,7 to
53,4 [6
to 12]
17,8
[4]
19,8
[0.78]
1,02
[0.040]
6,35
[0.250]
0,51
[0.020]
1.0-20
UNEF
34,5
[1.36]
Ø 25,4
[1.0]
19PA121-
EN
O.F.- Operating Force; R.F.- Release Force; F.P.-Free Position; P.T.-Pretravel; O.T.-Overtravel; D.T.-Differential Travel
*Roller plunger field adjustable in 45° increments.
** Reference Table 2, page 2, for additional detail.

10 sensing.honeywell.com
MICRO SWITCH™ Environmentally Sealed Limit Switches, EN Series
OPERATION
Plunger Actuators
For in-line actuation. An ice scraper ring cleans the actuator with
each operation.
Ball Bearing Plunger Actuators
For random direction operation. An ice scraper ring cleans the
actuator with each operation.
Roller Plunger Actuators
For cam and slide actuation not to exceed 20° rise. Roller adjusts
laterally in 45° increments. An ice scraper ring cleans the
actuator with each operation.
Roller Linkage Lever Actuators
A threaded rod attaches to the rotary lever for positive actuation.
The rotary lever operates in either direction and adjusts laterally
to any position through 360°. The threaded rod pivots in two
planes. The actuator has no spring return, but is controlled
directly by the movement of the actuating device.
Roller Lever Actuators
For cam and slide actuation with more than a 30° rise. The
actuator is available in clockwise or counterclockwise operation
with a spring-return mechanism. The actuator adjusts laterally to
any position through 360°. The roller is laminated phenolic.

Honeywell Sensing and Productivity Solutions 11
MICRO SWITCH™ Environmentally Sealed Limit Switches, EN Series
DIMENSIONAL DRAWINGS
Figure 3. Standard-size EN Switches
Figure 5. Special-purpose EN Switches
Figure 4. Miniature-size EN Switches
NOTE: Steel plunger and actuators are made from stainless
steel.

12 sensing.honeywell.com
MICRO SWITCH™ Environmentally Sealed Limit Switches, EN Series
Table 6. Replacement Parts
Catalog Listing Description Used On
6PA30 Roller lever arm 30EN Series
6PA31 Linkage lever arm 40EN Series
6PA32 Roller lever arm 1EN and 1HE Series
6PA202-EN Roller lever arm 600EN and 600HE Series
15PA104 Roller guide and locking ring 21EN, 422/424EN Series (5⁄8 in bushing)
15PA105 Roller guide and locking ring 622/624EN Series (15⁄32 in bushing)
15PA137 Locking ring only 21EN 422/424EN Series (5⁄8 in bushing)
15PA107 Locking ring only 622EN and 624EN Series (15⁄32 in bushing)
19PA8 Military-type mounting hardware 1EN Series (5⁄8 in bushing)
19PA9 Military-type mounting hardware 600EN Series (15⁄32 in bushing)

Warranty/Remedy
Honeywell warrants goods of its manufacture as being free
of defective materials and faulty workmanship. Honeywell’s
standard product warranty applies unless agreed to otherwise by
Honeywell in writing; please refer to your order acknowledgement
or consult your local sales office for specific warranty details. If
warranted goods are returned to Honeywell during the period of
coverage, Honeywell will repair or replace, at its option, without
charge those items it finds defective. The foregoing is buyer’s
sole remedy and is in lieu of all other warranties, expressed
or implied, including those of merchantability and fitness for
a particular purpose. In no event shall Honeywell be liable for
consequential, special, or indirect damages.
While we provide application assistance personally, through our
literature and the Honeywell web site, it is up to the customer to
determine the suitability of the product in the application.
Specifications may change without notice. The information we
supply is believed to be accurate and reliable as of this printing.
However, we assume no responsibility for its use.
003125-1-EN IL50 GLO
October 2015
© 2015 Honeywell International Inc. All rights reserved.
m WARNING
PERSONAL INJURY
DO NOT USE these products as safety or emergency stop
devices or in any other application where failure of the product
could result in personal injury.
Failure to comply with these instructions could result in
death or serious injury.
m WARNING
MISUSE OF DOCUMENTATION
• The information presented in this product sheet is for
reference only. Do not use this document as a product
installation guide.
• Complete installation, operation, and maintenance
information is provided in the instructions supplied with
each product.
Failure to comply with these instructions could result in
death or serious injury.
Find out more
Honeywell serves its customers
through a worldwide network
of sales offices, representatives
and distributors. For application
assistance, current specifica-
tions, pricing or name of the
nearest Authorized Distributor,
contact your local sales office.
To learn more about Honeywell’s
sensing and control products,
call +1-815-235-6847 or
1-800-537-6945,
visit sensing.honeywell.com,
or e-mail inquiries to
Sensing and Productivity Solutions
Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422
honeywell.com
ADDITIONAL MATERIALS
The following associated literature is available on the Honeywell
web site at sensing.honeywell.com:
• Product line guide
• Product range guide
• Aerospace and defense product range guide
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