Protection Relays & Systems

Results: 296
Series
-*777777-KW/HP-P2777/77C77C77C-KW/HPAF0100AF0500D0100D0900EL3100
Product Status
ActiveDiscontinued at Digi-KeyObsolete
Function
-Arc-FlashArc-Flash, OvercurrentArc-Flash, OverloadGround FaultGround Fault, OvercurrentGround Fault, Overcurrent, Undercurrent, UndervoltageGround Fault, OvertemperatureGround Fault, OvervoltageMultipleOvercurrent
Voltage - Supply
12 ~ 24VDC12/24VDC12VDC18 ~ 72VDC24 ~ 48VDC24/48VAC24VAC24VAC, 48VDC24VDC48 ~ 220VDC48VDC65 ~ 265VAC, 80 ~ 275VDC
Trip Range
0.01 ~ 3A0.01 ~ 5A10mA ~ 3A25mA ~ 0.5A0.03 ~ 5A0.1 ~ 0.2A0.125 ~ 30A125mA ~ 30A0.5 ~ 1000A0.5 ~ 21A, 40 ~ 740A, 170 ~ 528VAC0.5 ~ 4A0.5 ~ 5A
Delay Time
0 ~ 0.5s0 ~ 1.5s0 ~ 1s0 ~ 20s0 ~ 999s0.03 ~ 20s0.03 ~ 2s0.05 ~ 0.25s0.05 ~ 1s0.05 ~ 2.5s0.05 ~ 2s0.1 ~ 0.5s
Mounting Type
Chassis MountChassis Mount, DIN RailDIN RailPanel Mount
Termination Style
-Screw TerminalSpring Terminal
Features
-Automatic ResetAutomatic Reset, Manual ResetCT Loop Monitoring, Harmonic FilteringCT Loop Monitoring, Harmonic Filtering, Manual Reset, Test ButtonHarmonic Filtering, Manual ResetHarmonic Filtering, Manual Reset, Test ButtonManual ResetManual Reset, Test ButtonTest Button
Operating Temperature
-40°C ~ 50°C-40°C ~ 60°C-40°C ~ 70°C-40°C ~ 85°C-25°C ~ 70°C-20°C ~ 70°C-10°C ~ 60°C-
Stocking Options
Environmental Options
Media
Marketplace Product
296Results
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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
SE-TA6
SE-TA6
TERM ASSY 5.6V 50W
Littelfuse Inc.
3
In Stock
1 : ₩493,591.00000
Bulk
Bulk
Active
Ground Fault
-
-
-
Chassis Mount
Screw Terminal
-
-
PGR-3100
PGR-3100
GRND FAULT INDICAT SYST LED 30V
Littelfuse Inc.
3
In Stock
1 : ₩833,527.00000
Bulk
Bulk
Active
Ground Fault
600VAC
-
-
Panel Mount
Screw Terminal
Test Button
-
777-P2
777-P2
3-PHASE OLR/200-480V/2-800FLA+
Littelfuse Inc.
5
In Stock
1 : ₩952,288.00000
Bulk
Bulk
Active
Multiple
200 ~ 480VAC
200 ~ 480V AC
-
Chassis Mount
Screw Terminal
-
-20°C ~ 70°C
POWR-GARD Series
SE-701-0U
MONITOR GRND FALT RELAY 120/240V
Littelfuse Inc.
10
In Stock
18
Factory
1 : ₩1,247,168.00000
Bulk
Bulk
Active
Ground Fault
120/240VAC/DC
-
0.5 ~ 2.5s
Chassis Mount, DIN Rail
Screw Terminal
CT Loop Monitoring, Harmonic Filtering, Manual Reset, Test Button
-40°C ~ 60°C
MFG_SE-105
SE-105
GROUND FAULT MONITOR
Littelfuse Inc.
9
In Stock
1 : ₩1,744,089.00000
Bulk
Bulk
Active
Ground Fault
120VAC
0.5 ~ 5A
0.1 ~ 1s
Chassis Mount
Screw Terminal
Automatic Reset, Manual Reset
-
SE-601-0D
SE-601-0D
DC GROUND FAULT RELAY 9-36 VDC
Littelfuse Inc.
6
In Stock
1
Factory
1 : ₩1,995,643.00000
Bulk
Bulk
Active
Ground Fault, Overcurrent
12/24VDC
0.1 ~ 0.2A
0.5 ~ 2.5s
Chassis Mount, DIN Rail
Screw Terminal
Manual Reset, Test Button
-40°C ~ 60°C
AF0100  Series
AF0100-00
ARC-FLASH RELAY, UNIVERSAL SUPPL
Littelfuse Inc.
4
In Stock
1 : ₩2,026,422.00000
Bulk
Bulk
Active
Arc-Flash
100 ~ 240VAC/DC, 24 ~ 48VDC
10 ~ 25 klux
-
Chassis Mount, DIN Rail
Screw Terminal
-
-40°C ~ 70°C
SE-134C-00
SE-134C-00
GROUND CONTINUITY MONITOR
Littelfuse Inc.
9
In Stock
1 : ₩4,561,283.00000
Bulk
Bulk
Active
Ground Fault
120/240VAC/DC
-
0.1 ~ 2.5s
Panel Mount
Screw Terminal
CT Loop Monitoring, Harmonic Filtering, Manual Reset, Test Button
-40°C ~ 60°C
SE-330-xx-00
SE-330-00-00
GRND RESISTOR RELAY UNIVERSAL
Littelfuse Inc.
3
In Stock
1 : ₩4,864,766.00000
Bulk
Bulk
Active
Ground Fault
120/240VAC/DC
20 ~ 10000VAC
0.1 ~ 10s
Panel Mount
Screw Terminal
Harmonic Filtering, Manual Reset
-40°C ~ 60°C
PGR-8800-00
PGR-8800-00
ARC-FLASH RELAY NO COMM. UL&C-TI
Littelfuse Inc.
2
In Stock
1 : ₩5,330,235.00000
Bulk
Bulk
Active
Arc-Flash, Overcurrent
100 ~ 240VAC, 110 ~ 250VAC, 14 ~ 48VDC
9 ~ 25 klux
0 ~ 20s
Chassis Mount, DIN Rail
Screw Terminal
-
-40°C ~ 70°C
PGR-3200-120
PGR-3200-120
GROUND FAULT&INSUL MONITOR 120V
Littelfuse Inc.
6
In Stock
2
Factory
1 : ₩1,605,651.00000
Bulk
Bulk
Active
Ground Fault
120VAC
-
-
Chassis Mount, DIN Rail
Screw Terminal
Manual Reset, Test Button
-10°C ~ 60°C
SE-601-0T
SE-601-0U
DC GRND FAULT RELAY 55-75 VDC SU
Littelfuse Inc.
2
In Stock
1 : ₩1,617,368.00000
Bulk
Bulk
Active
Ground Fault, Overcurrent
120 ~ 240VAC/DC
1 ~ 20mA
0.05 ~ 2.5s
Chassis Mount, DIN Rail
Screw Terminal
Manual Reset, Test Button
-40°C ~ 60°C
777-575-P2
777-575-P2
3-PH OVERLOAD REL./500-600V/
Littelfuse Inc.
16
In Stock
15
Factory
1 : ₩785,714.00000
Bulk
Bulk
Active
Multiple
500 ~ 600VAC
2 ~ 800A, 450 ~ 660VAC
0 ~ 999s
Chassis Mount
Screw Terminal
-
-20°C ~ 70°C
777-LR-KW/HP-P2
777-LR-KW/HP-P2
3-PHASE POWER MONITOR/200-480V
Littelfuse Inc.
5
In Stock
8
Factory
1 : ₩1,028,794.00000
Bulk
Bulk
Active
Multiple
200 ~ 480VAC
1 ~ 800A, 170 ~ 528VAC
0 ~ 999s
DIN Rail
Screw Terminal
-
-20°C ~ 70°C
POWR-GARD Series
PGR-4700-24
SENS GRND FAULT RELAY 24VDC SUP
Littelfuse Inc.
16
In Stock
1 : ₩1,839,900.00000
Bulk
Bulk
Active
Ground Fault
24VDC
0.01 ~ 3A
0 ~ 1.5s
DIN Rail
Screw Terminal
CT Loop Monitoring, Harmonic Filtering, Manual Reset, Test Button
-
SE-134-SMA
SE-134C-10
GFGC MONITOR LOW VOLTAGE
Littelfuse Inc.
3
In Stock
3
Factory
1 : ₩5,486,549.00000
Bulk
Bulk
Active
Ground Fault
24 ~ 48VDC
-
0.1 ~ 2.5s
Panel Mount
Screw Terminal
CT Loop Monitoring, Harmonic Filtering, Manual Reset, Test Button
-40°C ~ 60°C
777-575-KW/HP-P2
777-575-KW/HP-P2
3-PHASE POWER MONITOR/500-600V
Littelfuse Inc.
8
In Stock
3
Factory
1 : ₩848,845.00000
Bulk
Bulk
Active
Multiple
500 ~ 600VAC
2 ~ 800A, 450 ~ 660VAC
0 ~ 999s
Chassis Mount
Screw Terminal
-
-20°C ~ 70°C
MP8000
MP8000
MOTOR OVERLOAD PROTECTION 8000
Littelfuse Inc.
0
In Stock
Check Lead Time
1 : ₩911,234.00000
Bulk
Bulk
Active
-
90 ~ 690VAC
0.5 ~ 1000A
-
Chassis Mount
Screw Terminal
Automatic Reset, Manual Reset
-40°C ~ 70°C
777-LR-P2
777-LR-P2
3-PHASE OVERLOAD RELAY/200-480
Littelfuse Inc.
1
In Stock
1 : ₩952,288.00000
Bulk
Bulk
Active
-
200 ~ 480VAC
200 ~ 480V AC
-
Chassis Mount
-
-
-20°C ~ 70°C
EL3100-00
EL3100-00
GRND FAULT INDICATE SYST 3PHASE
Littelfuse Inc.
0
In Stock
Check Lead Time
1 : ₩1,031,552.00000
Bulk
Bulk
Active
Ground Fault
208 ~ 600VAC
-
-
Chassis Mount, DIN Rail
Screw Terminal
-
-
POWR-GARD Series
SE-325
NGR MONITOR 120VAC SUPPLY
Littelfuse Inc.
0
In Stock
Check Lead Time
1 : ₩1,848,145.00000
Bulk
Bulk
Active
Ground Fault
120VAC
0.5 ~ 4A
0.1 ~ 2s
Chassis Mount
Screw Terminal
Manual Reset
-
PGR-4300-24
PGR-4300-24
GEN GRND FAULT RELAY-24VDC SUP
Littelfuse Inc.
0
In Stock
Check Lead Time
1 : ₩2,313,358.00000
Bulk
Bulk
Active
Ground Fault
24VDC
100 ~ 1200A
0 ~ 1s
Chassis Mount, DIN Rail
Screw Terminal
Manual Reset, Test Button
-10°C ~ 60°C
SE-330-00-01
SE-330-03-00
GRND RES RELAY ETHERNET UNIV
Littelfuse Inc.
0
In Stock
Check Lead Time
1 : ₩6,785,374.00000
Bulk
Bulk
Active
Ground Fault
120/240VAC/DC
20 ~ 10000VAC
0.1 ~ 10s
Panel Mount
Screw Terminal
Harmonic Filtering, Manual Reset
-40°C ~ 60°C
POWR-GARD Series
SE-701-0D
MONITOR GRND FAULT RELAY 12/24V
Littelfuse Inc.
0
In Stock
1
Factory
Check Lead Time
1 : ₩1,519,170.00000
Bulk
Bulk
Active
Ground Fault
12 ~ 24VDC
-
0.05 ~ 2.5s
DIN Rail
Screw Terminal
CT Loop Monitoring, Harmonic Filtering, Manual Reset, Test Button
-
AF0100  Series
AF0100-10
ARC-FLASH RELAY 24VDC SUPPLY
Littelfuse Inc.
1
In Stock
1 : ₩1,783,256.00000
Bulk
Bulk
Active
Arc-Flash
24 ~ 48VDC
10 ~ 25 klux
-
Chassis Mount, DIN Rail
Screw Terminal
-
-40°C ~ 70°C
Showing
of 296

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.