Showing
1 - 25
of 957
Compare
Mfr Part #
Quantity Available
Price
Series
Package
Product Status
Function
Voltage - Supply
Trip Range
Delay Time
Mounting Type
Termination Style
Features
Operating Temperature
PGR-3100
PGR-3100
GRND FAULT INDICAT SYST LED 30V
Littelfuse Inc.
28
In Stock
1 : $5,296.13000
Bulk
Bulk
ActiveGround Fault600VAC--Panel MountScrew TerminalTest Button-
MFG_SE-105
SE-105
GROUND FAULT MONITOR
Littelfuse Inc.
35
In Stock
50
Factory
1 : $11,087.77000
Bulk
Bulk
ActiveGround Fault120VAC0.5 ~ 5A0.1 ~ 1sChassis MountScrew TerminalAutomatic Reset, Manual Reset-
MFG_3RN20101CW30
3RN20101CW30
THERMISTOR MOT. PROT. 1NO 1NC BI
Siemens
31
In Stock
1 : $1,510.91000
Bulk
Bulk
ActiveOvertemperature24 ~ 240VAC/DC--DIN RailScrew TerminalAutomatic Reset-25°C ~ 60°C
EL3100-00
EL3100-00
GRND FAULT INDICATE SYST 3PHASE
Littelfuse Inc.
4
In Stock
1 : $6,569.08000
Bulk
Bulk
ActiveGround Fault208 ~ 600VAC--Chassis Mount, DIN RailScrew Terminal--
SE-601-0D
SE-601-0D
DC GROUND FAULT RELAY 9-36 VDC
Littelfuse Inc.
8
In Stock
1 : $12,708.54000
Bulk
Bulk
ActiveGround Fault, Overcurrent12/24VDC0.1 ~ 0.2A0.5 ~ 2.5sChassis Mount, DIN RailScrew TerminalManual Reset, Test Button-40°C ~ 60°C
SE-134C-00
SE-134C-00
GROUND CONTINUITY MONITOR
Littelfuse Inc.
3
In Stock
1 : $30,610.19000
Bulk
Bulk
ActiveGround Fault120/240VAC/DC-0.1 ~ 2.5sPanel MountScrew TerminalCT Loop Monitoring, Harmonic Filtering, Manual Reset, Test Button-40°C ~ 60°C
3UG46141BR20
3UG4615-1CR20
VOLTAGE MONITORING RELAY
Siemens
0
In Stock
1 : $2,424.06000
Bulk
Bulk
ActivePhase Loss, Phase Sequence, Overvoltage, Undervoltage160 ~ 690VAC160 ~ 690VAC0.1 ~ 20sDIN RailScrew TerminalAutomatic Reset-25°C ~ 60°C
3RN20121BW30
3RN20121BW30
THERMISTOR MOTOR PROT. 2CO REMOT
Siemens
5
In Stock
1 : $2,490.20000
Bulk
Bulk
ActiveOvertemperature24 ~ 240VAC/DC--DIN RailScrew TerminalManual Reset-25°C ~ 60°C
SE-TA6
SE-TA6
TERM ASSY 5.6V 50W
Littelfuse Inc.
5
In Stock
19
Factory
1 : $3,200.13000
Bulk
Bulk
ActiveGround Fault---Chassis MountScrew Terminal--
777-LR-P2
777-LR-P2
3-PHASE OVERLOAD RELAY/200-480
Littelfuse Inc.
2
In Stock
1 : $5,055.09000
Bulk
Bulk
Active-200 ~ 480VAC200 ~ 480V AC-Chassis Mount---20°C ~ 70°C
DEA71DM24A003
DEA71DM24A003
EARTH LEAKAGE MONITORING RELAY
Carlo Gavazzi Inc.
4
In Stock
1 : $1,360.48000
Box
Box
ActiveGround Fault24 ~ 240VAC30mA-DIN RailScrew Terminal--25°C ~ 60°C
77C
77C
1-PHASE OVERLOAD RELAY/ 100-24
Littelfuse Inc.
7
In Stock
1 : $3,286.98000
Bulk
Bulk
Active-100 ~ 240VAC100 ~ 240V AC-Chassis Mount---20°C ~ 70°C
K2CM-1LS
K2CM-1LS
RELAY MOTOR PROTECTIVE 2-8A
Omron Automation and Safety
13
In Stock
1 : $3,734.91000
Bulk
Bulk
ActiveOvercurrent, Phase Loss, Phase Sequence100/110/120VAC2 ~ 8A2 ~ 40sChassis MountScrew TerminalManual Reset, Test Button-10°C ~ 60°C
POWR-GARD Series
SE-701-0D
MONITOR GRND FAULT RELAY 12/24V
Littelfuse Inc.
3
In Stock
1 : $9,652.59000
Bulk
Bulk
ActiveGround Fault12 ~ 24VDC-0.05 ~ 2.5sDIN RailScrew TerminalCT Loop Monitoring, Harmonic Filtering, Manual Reset, Test Button-
MFG_SE-107
SE-107
GROUND-FAULT GROUND-CHECK MON
Littelfuse Inc.
2
In Stock
1 : $11,087.77000
Bulk
Bulk
ActiveGround Fault120VAC0.5 ~ 5A0.1 ~ 1sChassis MountScrew TerminalAutomatic Reset, Manual Reset-
3
In Stock
1 : $13,010.59000
Bulk
Bulk
ActiveOvervoltage120VAC79.2 ~ 120VAC-Chassis MountStud--20°C ~ 85°C
PGR-4300-24
PGR-4300-24
GEN GRND FAULT RELAY-24VDC SUP
Littelfuse Inc.
3
In Stock
1 : $15,527.99000
Bulk
Bulk
ActiveGround Fault24VDC100 ~ 1200A0 ~ 1sChassis Mount, DIN RailScrew TerminalManual Reset, Test Button-10°C ~ 60°C
DPD02DM44(B)
DPD02DM44
3PH MONITORING RELAY 480V
Carlo Gavazzi Inc.
2
In Stock
1 : $2,866.43000
Box
Box
ActiveMultiple208 ~ 480VAC177 ~ 552V AC0 ~ 60sDIN RailScrew Terminal--20°C ~ 60°C
2
In Stock
1 : $10,119.52000
Bulk
Bulk
ActiveOvervoltage, Undervoltage100 ~ 140VAC, 100 ~ 200VDC72 ~ 672VAC0.5 ~ 10sChassis Mount, DIN RailScrew Terminal--40°C ~ 60°C
2
In Stock
1 : $15,176.41000
Bulk
Bulk
ActiveOvervoltage480VAC320 ~ 480V AC-Chassis MountStud--20°C ~ 85°C
600PSR-165/300-CU
600PSR-165/300-CU
3 PHASE-3W 165 TO 300V, PHASE FA
Selec Controls USA Inc.
100
In Stock
1 : $247.63000
Box
Box
ActivePhase Loss, Phase Sequence165 ~ 300VAC--DIN RailScrew Terminal-0°C ~ 50°C
600VPR-1-170/290V-CU
600VPR-1-170/290-CU
3 PHASE-3W 170 TO 290V, PHASE FA
Selec Controls USA Inc.
100
In Stock
1 : $291.61000
Box
Box
ActivePhase Loss, Phase Sequence, Overvoltage, Undervoltage170 ~ 290VAC170 ~ 290VAC0.2 ~ 10sDIN RailScrew Terminal-0°C ~ 50°C
MFG_3RN20001AA30
3RN20001AA30
THERMISTOR MOT. PROT. 1CO US=A1
Siemens
2
In Stock
1 : $1,185.50000
Bulk
Bulk
ActiveOvertemperature24VAC/DC--DIN RailScrew TerminalAutomatic Reset-25°C ~ 60°C
MFG_3RN20101BA30
3RN20101BA30
THERMISTOR MOTOR PROTECTION 2CO
Siemens
2
In Stock
1 : $1,443.57000
Bulk
Bulk
ActiveOvertemperature24VAC/DC--DIN RailScrew TerminalAutomatic Reset-25°C ~ 60°C
MFG_3RN20101CA30
3RN20101CA30
THERMISTOR MOT. PROT. 1NO 1NC BI
Siemens
4
In Stock
1 : $1,421.41000
Bulk
Bulk
ActiveOvertemperature24VAC/DC--DIN RailScrew TerminalAutomatic Reset-25°C ~ 60°C
Showing
1 - 25
of 957

Protection Relays & Systems


Protection relays detect abnormal operating conditions in an industrial system and may trigger an alert or isolate the offending device from the system. Common detection functions include; Arc-flash, temperature monitoring, ground fault, over-current, over-voltage, reverse power flow, over-frequency, under-frequency and phase loss, sequence or imbalance.