Protection Relays & Systems

Results: 250
Series
-*777777-KW/HP-P2777/77C77C77C-KW/HPAF0100AF0500D0100D0900EL731
Product Status
ActiveDiscontinued at Digi-KeyObsolete
Function
-Arc-FlashArc-Flash, OvercurrentArc-Flash, OverloadGround FaultGround Fault, OvercurrentGround Fault, Overcurrent, Undercurrent, UndervoltageGround Fault, OvertemperatureGround Fault, OvervoltageMultiple
Voltage - Supply
12 ~ 24VDC12/24VDC18 ~ 72VDC24 ~ 48VDC24/48VAC24VAC24VAC, 48VDC24VDC48 ~ 220VDC48VDC65 ~ 265VAC, 80 ~ 275VDC65 ~ 265VAC, 85 ~ 275VDC
Trip Range
0.01 ~ 5A25mA ~ 0.5A0.03 ~ 5A0.1 ~ 0.2A0.125 ~ 30A125mA ~ 30A0.5 ~ 1000A0.5 ~ 21A, 40 ~ 740A, 170 ~ 528VAC0.5 ~ 4A0.5 ~ 5A1 ~ 20mA1 ~ 800A, 170 ~ 528VAC
Delay Time
0 ~ 0.5s0 ~ 20s0 ~ 999s0.03 ~ 20s0.03 ~ 2s0.05 ~ 0.25s0.05 ~ 2.5s0.05 ~ 2s0.1 ~ 0.5s0.1 ~ 10s0.1 ~ 1s0.1 ~ 2.5s0.1 ~ 2s0.2 ~ 500s
Mounting Type
Chassis MountChassis Mount, DIN RailDIN RailPanel Mount
Termination Style
-Screw TerminalSpring Terminal
Features
-Automatic Reset, Manual ResetCT Loop Monitoring, Harmonic FilteringCT Loop Monitoring, Harmonic Filtering, Manual Reset, Test ButtonHarmonic Filtering, Manual ResetManual 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
250Results
Applied FiltersRemove All
Showing
of 250
Compare
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 : ¥2,936.13000
Bulk
Bulk
Active
Ground Fault
-
-
-
Chassis Mount
Screw Terminal
-
-
777-P2
777-P2
3-PHASE OLR/200-480V/2-800FLA+
Littelfuse Inc.
6
In Stock
41
Factory
1 : ¥5,470.87000
Bulk
Bulk
Active
Multiple
200 ~ 480VAC
200 ~ 480V AC
-
Chassis Mount
Screw Terminal
-
-20°C ~ 70°C
777-LR-P2
777-LR-P2
3-PHASE OVERLOAD RELAY/200-480
Littelfuse Inc.
2
In Stock
1 : ¥5,470.87000
Bulk
Bulk
Active
-
200 ~ 480VAC
200 ~ 480V AC
-
Chassis Mount
-
-
-20°C ~ 70°C
MFG_SE-105
SE-105
GROUND FAULT MONITOR
Littelfuse Inc.
9
In Stock
1 : ¥10,019.75000
Bulk
Bulk
Active
Ground Fault
120VAC
0.5 ~ 5A
0.1 ~ 1s
Chassis Mount
Screw Terminal
Automatic Reset, Manual Reset
-
AF0100 Series
AF0100-00
ARC-FLASH RELAY, UNIVERSAL SUPPL
Littelfuse Inc.
4
In Stock
1 : ¥11,641.76000
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 : ¥27,132.81000
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
PGR-8800-00
PGR-8800-00
ARC-FLASH RELAY NO COMM. UL&C-TI
Littelfuse Inc.
2
In Stock
1 : ¥31,706.93000
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 : ¥10,041.41000
Bulk
Bulk
Active
Ground Fault
120VAC
-
-
Chassis Mount, DIN Rail
Screw Terminal
Manual Reset, Test Button
-10°C ~ 60°C
777-575-P2
777-575-P2
3-PH OVERLOAD REL./500-600V/
Littelfuse Inc.
16
In Stock
15
Factory
1 : ¥4,513.91000
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
9
Factory
1 : ¥6,119.79000
Bulk
Bulk
Active
Multiple
200 ~ 480VAC
1 ~ 800A, 170 ~ 528VAC
0 ~ 999s
DIN Rail
Screw Terminal
-
-20°C ~ 70°C
SE-134-SMA
SE-134C-10
GFGC MONITOR LOW VOLTAGE
Littelfuse Inc.
3
In Stock
3
Factory
1 : ¥32,636.76000
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 : ¥5,049.36000
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 : ¥5,235.02000
Bulk
Bulk
Active
-
90 ~ 690VAC
0.5 ~ 1000A
-
Chassis Mount
Screw Terminal
Automatic Reset, Manual Reset
-40°C ~ 70°C
AF0100 Series
AF0100-10
ARC-FLASH RELAY 24VDC SUPPLY
Littelfuse Inc.
1
In Stock
1 : ¥10,607.71000
Bulk
Bulk
Active
Arc-Flash
24 ~ 48VDC
10 ~ 25 klux
-
Chassis Mount, DIN Rail
Screw Terminal
-
-40°C ~ 70°C
SE-330AU-00-00
SE-330AU-00-00
NEUTRAL-EARTHING-RESISTOR MONITO
Littelfuse Inc.
1
In Stock
1 : ¥28,938.08000
Bulk
Bulk
Active
Ground Fault
120 ~ 240VAC/DC
0.125 ~ 30A
0.1 ~ 0.5s
Panel Mount
Screw Terminal
Harmonic Filtering, Manual Reset
-
0
In Stock
Check Lead Time
1 : ¥28,938.08000
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
77C
77C
1-PHASE OVERLOAD RELAY/ 100-24
Littelfuse Inc.
1
In Stock
5
Factory
1 : ¥3,233.99000
Bulk
Bulk
Active
-
100 ~ 240VAC
100 ~ 240V AC
-
Chassis Mount
-
-
-20°C ~ 70°C
777-TS
777-TS
3-PHASE OVERLOAD RELAY/190-480
Littelfuse Inc.
1
In Stock
1 : ¥6,327.19000
Bulk
Bulk
Active
Multiple
200 ~ 480VAC
2 ~ 800A, 170 ~ 528VAC
0.2 ~ 500s
Chassis Mount
Screw Terminal
-
-20°C ~ 70°C
SE-70x-0U
SE-704-0U
MONITOR EARTH LEAKAGE 120/240VAC
Littelfuse Inc.
1
In Stock
23
Factory
1 : ¥7,677.19000
Bulk
Bulk
Active
Ground Fault
120 ~ 240VAC/DC
0.01 ~ 5A
0.03 ~ 20s
DIN Rail
Screw Terminal
CT Loop Monitoring, Harmonic Filtering, Manual Reset, Test Button
-
SE-704-0D
SE-704-0D
SENSITIVE GF RELAY 9 36 VDC
Littelfuse Inc.
1
In Stock
27
Factory
1 : ¥9,889.53000
Bulk
Bulk
Active
Ground Fault
12 ~ 24VDC
0.01 ~ 5A
0.03 ~ 20s
DIN Rail
Screw Terminal
CT Loop Monitoring, Harmonic Filtering, Manual Reset, Test Button
-
MFG_SE-107
SE-107
GROUND-FAULT GROUND-CHECK MON
Littelfuse Inc.
1
In Stock
1 : ¥10,374.72000
Bulk
Bulk
Active
Ground Fault
120VAC
0.5 ~ 5A
0.1 ~ 1s
Chassis Mount
Screw Terminal
Automatic Reset, Manual Reset
-
SE-601-0D-CC
SE-601-0D-CC
SE-601-0D WITH CONFORMAL COATING
Littelfuse Inc.
1
In Stock
1 : ¥13,726.00000
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 ~ 85°C
1
In Stock
1 : ¥24,710.63000
Bulk
Bulk
Active
Arc-Flash
100 ~ 240VAC, 110 ~ 250VDC, 24 ~ 48VDC
-
-
Chassis Mount
Screw Terminal
-
-40°C ~ 70°C
SE-135-00
SE-135-00
GROUND-FAULT GROUND CHECK MON
Littelfuse Inc.
1
In Stock
13
Factory
1 : ¥27,132.81000
Bulk
Bulk
Active
Ground Fault
65 ~ 265VAC, 85 ~ 275VDC
-
0.1 ~ 2.5s
Panel Mount
Screw Terminal
CT Loop Monitoring, Harmonic Filtering, Manual Reset, Test Button
-40°C ~ 60°C
RES100K
RES100K
NGR MONITOR TEST RESISTOR 100 KO
Littelfuse Inc.
0
In Stock
8
Factory
Check Lead Time
1 : ¥85.94000
Bulk
-
Bulk
Active
-
-
-
-
-
-
-
-
Showing
of 250

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.