Showing
1 - 25
of 938
Compare
Mfr Part #
Quantity Available
Price
Series
Package
Product Status
Function
Voltage - Supply
Trip Range
Delay Time
Mounting Type
Termination Style
Features
Operating Temperature
MFG_SE-105
SE-105
GROUND FAULT MONITOR
Littelfuse Inc.
45
In Stock
1 : $1,942.73000
Bulk
Bulk
ActiveGround Fault120VAC0.5 ~ 5A0.1 ~ 1sChassis MountScrew TerminalAutomatic Reset, Manual Reset-
777-P2
777-P2
3-PHASE OLR/200-480V/2-800FLA+
Littelfuse Inc.
15
In Stock
1 : $885.72000
Bulk
Bulk
ActiveMultiple200 ~ 480VAC200 ~ 480V AC-Chassis MountScrew Terminal--20°C ~ 70°C
PGR-3100
PGR-3100
GRND FAULT INDICAT SYST LED 30V
Littelfuse Inc.
15
In Stock
9
Factory
1 : $871.42000
Bulk
Bulk
ActiveGround Fault600VAC--Panel MountScrew TerminalTest Button-
EL3100-00
EL3100-00
GRND FAULT INDICATE SYST 3PHASE
Littelfuse Inc.
8
In Stock
1 : $1,150.99000
Bulk
Bulk
ActiveGround Fault208 ~ 600VAC--Chassis Mount, DIN RailScrew Terminal--
POWR-GARD Series
PGR-4700-24
SENS GRND FAULT RELAY 24VDC SUP
Littelfuse Inc.
22
In Stock
11
Factory
1 : $1,961.98000
Bulk
Bulk
ActiveGround Fault24VDC0.01 ~ 3A0 ~ 1.5sDIN RailScrew TerminalCT Loop Monitoring, Harmonic Filtering, Manual Reset, Test Button-
SE-330-xx-00
SE-330-00-00
GRND RESISTOR RELAY UNIVERSAL
Littelfuse Inc.
5
In Stock
1 : $5,476.02000
Bulk
Bulk
ActiveGround Fault120/240VAC/DC20 ~ 10000VAC0.1 ~ 10sPanel MountScrew TerminalHarmonic Filtering, Manual Reset-40°C ~ 60°C
K2CM-1LS
K2CM-1LS
RELAY MOTOR PROTECTIVE 2-8A
Omron Automation and Safety
13
In Stock
1 : $587.63000
Bulk
Bulk
ActiveOvercurrent, Phase Loss, Phase Sequence100/110/120VAC2 ~ 8A2 ~ 40sChassis MountScrew TerminalManual Reset, Test Button-10°C ~ 60°C
SE-TA6
SE-TA6
TERM ASSY 5.6V 50W
Littelfuse Inc.
6
In Stock
1 : $560.71000
Bulk
Bulk
ActiveGround Fault---Chassis MountScrew Terminal--
777-LR-P2
777-LR-P2
3-PHASE OVERLOAD RELAY/200-480
Littelfuse Inc.
6
In Stock
1 : $885.72000
Bulk
Bulk
Active-200 ~ 480VAC200 ~ 480V AC-Chassis Mount---20°C ~ 70°C
DPD02DM44(B)
DPD02DM44
3PH MONITORING RELAY 480V
Carlo Gavazzi Inc.
2
In Stock
1 : $449.11000
Box
Box
ActiveMultiple208 ~ 480VAC177 ~ 552V AC0 ~ 60sDIN RailScrew Terminal--20°C ~ 60°C
77C
77C
1-PHASE OVERLOAD RELAY/ 100-24
Littelfuse Inc.
7
In Stock
11
Factory
1 : $575.92000
Bulk
Bulk
Active-100 ~ 240VAC100 ~ 240V AC-Chassis Mount---20°C ~ 70°C
MFG_EL731-00-00
EL731-00-00
AC/DC EARTH-LKGE RELAY 75-275V
Littelfuse Inc.
2
In Stock
1 : $2,034.17000
Bulk
Bulk
ActiveGround Fault, Overtemperature120 ~ 240VAC/DC0.03 ~ 5A0.05 ~ 2sPanel MountSpring TerminalCT Loop Monitoring, Harmonic Filtering-
POWR-GARD Series
SE-325
NGR MONITOR 120VAC SUPPLY
Littelfuse Inc.
2
In Stock
1 : $1,970.78000
Bulk
Bulk
ActiveGround Fault120VAC0.5 ~ 4A0.1 ~ 2sChassis MountScrew TerminalManual Reset-
MFG_SE-107
SE-107
GROUND-FAULT GROUND-CHECK MON
Littelfuse Inc.
3
In Stock
1
Factory
1 : $1,942.73000
Bulk
Bulk
ActiveGround Fault120VAC0.5 ~ 5A0.1 ~ 1sChassis MountScrew TerminalAutomatic Reset, Manual Reset-
5
In Stock
1 : $1,984.67000
Bulk
Bulk
ActiveOvervoltage120VAC79.2 ~ 120VAC-Chassis MountStud--20°C ~ 85°C
3
In Stock
1 : $1,548.75000
Bulk
Bulk
ActiveOvervoltage, Undervoltage100 ~ 140VAC, 100 ~ 200VDC72 ~ 672VAC0.5 ~ 10sChassis Mount, DIN RailScrew Terminal--40°C ~ 60°C
4
In Stock
1 : $2,270.09000
Bulk
Bulk
ActiveOvervoltage480VAC320 ~ 480V AC-Chassis MountStud--20°C ~ 85°C
GFD200
GFD-200
THREE PHASE GROUND FAULT DISPLAY
Mueller Electric Co
2
In Stock
1 : $346.29000
Box
Box
ActiveGround Fault208 ~ 600VAC--Panel MountWire Leads-0°C ~ 55°C
DPD02DM44(B)
DPD02DM44B
3PH MONITORING RELAY 240V
Carlo Gavazzi Inc.
4
In Stock
1 : $449.11000
Box
Box
ActiveMultiple120 ~ 277VAC102 ~ 318V AC0 ~ 60sDIN RailScrew Terminal--20°C ~ 60°C
3-PHASE POWER MONITOR/500-600V
777-575-KW/HP-P2
3-PHASE POWER MONITOR/500-600V
Littelfuse Inc.
10
In Stock
2
Factory
1 : $959.99000
Bulk
Bulk
ActiveMultiple500 ~ 600VAC2 ~ 800A, 450 ~ 660VAC0 ~ 999sChassis MountScrew Terminal--20°C ~ 70°C
3-PHASE POWER MONITOR/200-480V
777-LR-KW/HP-P2
3-PHASE POWER MONITOR/200-480V
Littelfuse Inc.
10
In Stock
26
Factory
1 : $959.99000
Bulk
Bulk
ActiveMultiple200 ~ 480VAC1 ~ 800A, 170 ~ 528VAC0 ~ 999sDIN RailScrew Terminal--20°C ~ 70°C
3-PH OVERLOAD REL./500-600V/
777-575-P2
3-PH OVERLOAD REL./500-600V/
Littelfuse Inc.
10
In Stock
1 : $831.76000
Bulk
Bulk
ActiveMultiple500 ~ 600VAC2 ~ 800A, 450 ~ 660VAC0 ~ 999sChassis MountScrew Terminal--20°C ~ 70°C
3-PHASE OVERLOAD RELAY/190-480
777-TS
3-PHASE OVERLOAD RELAY/190-480
Littelfuse Inc.
10
In Stock
3
Factory
1 : $1,063.17000
Bulk
Bulk
ActiveMultiple200 ~ 480VAC2 ~ 800A, 170 ~ 528VAC0.2 ~ 500sChassis MountScrew Terminal--20°C ~ 70°C
SE-601-0D
SE-601-0D
DC GROUND FAULT RELAY 9-36 VDC
Littelfuse Inc.
0
In Stock
1 : $2,091.05000
Bulk
Bulk
ActiveGround Fault, Overcurrent12/24VDC0.1 ~ 0.2A0.5 ~ 2.5sChassis Mount, DIN RailScrew TerminalManual Reset, Test Button-40°C ~ 60°C
DEA71DM24A003
DEA71DM24A003
EARTH LEAKAGE MONITORING RELAY
Carlo Gavazzi Inc.
1
In Stock
1 : $212.59000
Box
Box
ActiveGround Fault24 ~ 240VAC30mA-DIN RailScrew Terminal--25°C ~ 60°C
Showing
1 - 25
of 938

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.