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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 : $1,295.83000
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 : $1,393.57000
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 : $164.06000
Bulk
Bulk
ActiveOvertemperature24 ~ 240VAC/DC--DIN RailScrew TerminalAutomatic Reset-25°C ~ 60°C
TVM-100-12
TVM-200-20
3 VOLT RELAY ADJ 200-250VAC 10P
R-K Electronics, Inc.
28
Marketplace
1 : $120.00000
Bulk
-
Bulk
ActiveOvervoltage, Undervoltage200 ~ 250VAC20 ~ 25VAC0.5sSocketablePlug In, 8 Pin (Octal)-0°C ~ 40°C
CSR-1-100-5.0-4.5
CSR-1-18-5.0-4.5
AC CURRENT, GO NO-GO 5 AMP PICK-
R-K Electronics, Inc.
344
Marketplace
1 : $130.00000
Box
-
Box
Active--4.5 ~ 5A0.1sChassis MountWire LeadsManual Reset0°C ~ 55°C
DPM-120A-B
DPM-240A-B
3 VOLT RELAY, 240VAC, 200-600VAC
R-K Electronics, Inc.
37
Marketplace
1 : $160.00000
Box
-
Box
ActiveMultiple208 ~ 240VAC-2 ~ 10sChassis MountScrew Terminal--40°C ~ 59°C
DPM-120A-B
DPM-24A-B
3 VOLT RELAY, 24VAC, 200-600VAC,
R-K Electronics, Inc.
32
Marketplace
1 : $160.00000
Box
-
Box
ActiveMultiple24VAC-2 ~ 10sChassis MountScrew Terminal--40°C ~ 59°C
MVPL-120A-A1C
MVPL-120A-A1C
1&3 VOLTAGE MONITOR 120VAC 8-PIN
R-K Electronics, Inc.
33
Marketplace
1 : $230.00000
Bulk
-
Bulk
ActiveMultiple120VAC-2 ~ 300sChassis MountPlug In, 8 Pin (Octal)Manual Reset0°C ~ 65°C
MVPL-120A-A1C
MVPL-24A-A1C
1&3 VOLTAGE MONITOR 24AC 8-PIN
R-K Electronics, Inc.
26
Marketplace
1 : $230.00000
Bulk
-
Bulk
ActiveMultiple24VAC-2 ~ 300sChassis MountPlug In, 8 Pin (Octal)Manual Reset0°C ~ 65°C
777-P2
777-P2
3-PHASE OLR/200-480V/2-800FLA+
Littelfuse Inc.
16
In Stock
127
Factory
1 : $590.79000
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
15
Factory
1 : $618.96000
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 : $767.73000
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 : $3,889.55000
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 : $151.00000
Box
Box
ActiveGround Fault24 ~ 240VAC30mA-DIN RailScrew Terminal--25°C ~ 60°C
3UG46141BR20
3UG4615-1CR20
VOLTAGE MONITORING RELAY
Siemens
7
In Stock
1 : $252.29000
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
49
Factory
1 : $374.00000
Bulk
Bulk
ActiveGround Fault---Chassis MountScrew Terminal--
K2CM-1LS
K2CM-1LS
RELAY MOTOR PROTECTIVE 2-8A
Omron Automation and Safety
13
In Stock
1 : $391.96000
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 : $590.79000
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 : $3,396.66000
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 : $4,178.13000
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 : $5,150.99000
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 : $319.00000
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 : $384.15000
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 : $1,295.83000
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 : $1,356.82000
Bulk
Bulk
ActiveGround Fault, Overtemperature120 ~ 240VAC/DC0.03 ~ 5A0.05 ~ 2sPanel MountSpring TerminalCT Loop Monitoring, Harmonic Filtering-
Showing
1 - 25
of 1,367

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.