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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.
43
In Stock
1 : $2,258.24000
Bulk
Bulk
ActiveGround Fault120VAC0.5 ~ 5A0.1 ~ 1sChassis MountScrew TerminalAutomatic Reset, Manual Reset-
POWR-GARD Series
PGR-4700-24
SENS GRND FAULT RELAY 24VDC SUP
Littelfuse Inc.
45
In Stock
1 : $2,428.57000
Bulk
Bulk
ActiveGround Fault24VDC0.01 ~ 3A0 ~ 1.5sDIN RailScrew TerminalCT Loop Monitoring, Harmonic Filtering, Manual Reset, Test Button-
MFG_3RN20101CW30
3RN20101CW30
THERMISTOR MOT. PROT. 1NO 1NC BI
Siemens
32
In Stock
1 : $285.91000
Bulk
Bulk
ActiveOvertemperature24 ~ 240VAC/DC--DIN RailScrew TerminalAutomatic Reset-25°C ~ 60°C
777-P2
777-P2
3-PHASE OLR/200-480V/2-800FLA+
Littelfuse Inc.
16
In Stock
129
Factory
1 : $1,029.57000
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
26
Factory
1 : $1,078.66000
Bulk
Bulk
ActiveGround Fault600VAC--Panel MountScrew TerminalTest Button-
EL3100-00
EL3100-00
GRND FAULT INDICATE SYST 3PHASE
Littelfuse Inc.
4
In Stock
2
Factory
1 : $1,337.92000
Bulk
Bulk
ActiveGround Fault208 ~ 600VAC--Chassis Mount, DIN RailScrew Terminal--
SE-330-xx-00
SE-330-00-00
GRND RESISTOR RELAY UNIVERSAL
Littelfuse Inc.
4
In Stock
1 : $6,778.32000
Bulk
Bulk
ActiveGround Fault120/240VAC/DC20 ~ 10000VAC0.1 ~ 10sPanel MountScrew TerminalHarmonic Filtering, Manual Reset-40°C ~ 60°C
DEA71DM24A003
DEA71DM24A003
EARTH LEAKAGE MONITORING RELAY
Carlo Gavazzi Inc.
6
In Stock
1 : $263.15000
Box
Box
ActiveGround Fault24 ~ 240VAC30mA-DIN RailScrew Terminal--25°C ~ 60°C
3UG46141BR20
3UG4615-1CR20
VOLTAGE MONITORING RELAY
Siemens
7
In Stock
1 : $439.67000
Bulk
Bulk
ActivePhase Loss, Phase Sequence, Overvoltage, Undervoltage160 ~ 690VAC160 ~ 690VAC0.1 ~ 20sDIN RailScrew TerminalAutomatic Reset-25°C ~ 60°C
SE-TA6
SE-TA6
TERM ASSY 5.6V 50W
Littelfuse Inc.
8
In Stock
50
Factory
1 : $651.77000
Bulk
Bulk
ActiveGround Fault---Chassis MountScrew Terminal--
K2CM-1LS
K2CM-1LS
RELAY MOTOR PROTECTIVE 2-8A
Omron Automation and Safety
13
In Stock
1 : $683.07000
Bulk
Bulk
ActiveOvercurrent, Phase Loss, Phase Sequence100/110/120VAC2 ~ 8A2 ~ 40sChassis MountScrew TerminalManual Reset, Test Button-10°C ~ 60°C
777-LR-P2
777-LR-P2
3-PHASE OVERLOAD RELAY/200-480
Littelfuse Inc.
7
In Stock
1
Factory
1 : $1,029.57000
Bulk
Bulk
Active-200 ~ 480VAC200 ~ 480V AC-Chassis Mount---20°C ~ 70°C
SE-135-00
SE-135-00
GROUND-FAULT GROUND CHECK MON
Littelfuse Inc.
2
In Stock
1 : $5,919.36000
Bulk
Bulk
ActiveGround Fault65 ~ 265VAC, 85 ~ 275VDC-0.1 ~ 2.5sPanel MountScrew TerminalCT Loop Monitoring, Harmonic Filtering, Manual Reset, Test Button-40°C ~ 60°C
PGR-8800-00
PGR-8800-00
ARC-FLASH RELAY NO COMM. UL&C-TI
Littelfuse Inc.
2
In Stock
1 : $7,281.23000
Bulk
Bulk
ActiveArc-Flash, Overcurrent100 ~ 240VAC, 110 ~ 250VAC, 14 ~ 48VDC9 ~ 25 klux0 ~ 20sChassis Mount, DIN RailScrew Terminal--40°C ~ 70°C
SE-330-00-01
SE-330-03-00
GRND RES RELAY ETHERNET UNIV
Littelfuse Inc.
2
In Stock
1 : $8,976.63000
Bulk
Bulk
ActiveGround Fault120/240VAC/DC20 ~ 10000VAC0.1 ~ 10sPanel MountScrew TerminalHarmonic Filtering, Manual Reset-40°C ~ 60°C
DPD02DM44(B)
DPD02DM44
3PH MONITORING RELAY 480V
Carlo Gavazzi Inc.
2
In Stock
1 : $555.92000
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
1 : $669.46000
Bulk
Bulk
Active-100 ~ 240VAC100 ~ 240V AC-Chassis Mount---20°C ~ 70°C
MFG_SE-107
SE-107
GROUND-FAULT GROUND-CHECK MON
Littelfuse Inc.
3
In Stock
1 : $2,258.24000
Bulk
Bulk
ActiveGround Fault120VAC0.5 ~ 5A0.1 ~ 1sChassis MountScrew TerminalAutomatic Reset, Manual Reset-
MFG_EL731-00-00
EL731-00-00
AC/DC EARTH-LKGE RELAY 75-275V
Littelfuse Inc.
2
In Stock
1 : $2,364.53000
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 : $2,439.47000
Bulk
Bulk
ActiveGround Fault120VAC0.5 ~ 4A0.1 ~ 2sChassis MountScrew TerminalManual Reset-
3
In Stock
1 : $1,873.66000
Bulk
Bulk
ActiveOvervoltage, Undervoltage100 ~ 140VAC, 100 ~ 200VDC72 ~ 672VAC0.5 ~ 10sChassis Mount, DIN RailScrew Terminal--40°C ~ 60°C
5
In Stock
1 : $2,408.97000
Bulk
Bulk
ActiveOvervoltage120VAC79.2 ~ 120VAC-Chassis MountStud--20°C ~ 85°C
4
In Stock
1 : $2,809.96000
Bulk
Bulk
ActiveOvervoltage480VAC320 ~ 480V AC-Chassis MountStud--20°C ~ 85°C
MFG_3RN20001AA30
3RN20001AA30
THERMISTOR MOT. PROT. 1CO US=A1
Siemens
2
In Stock
1 : $199.10000
Bulk
Bulk
ActiveOvertemperature24VAC/DC--DIN RailScrew TerminalAutomatic Reset-25°C ~ 60°C
MFG_3RN20101CA30
3RN20101CA30
THERMISTOR MOT. PROT. 1NO 1NC BI
Siemens
3
In Stock
1 : $253.23000
Bulk
Bulk
ActiveOvertemperature24VAC/DC--DIN RailScrew TerminalAutomatic Reset-25°C ~ 60°C
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of 971

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.