Phase Monitoring Relays

Phase Monitoring Relays provides protection against phase loss, phase reversal, and phase unbalance due to blown fuses, broken wires or worn contacts.

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A257B TMK POWER MONITOR 3-PHASE 480VAC, AUTO RESET, ADJ RANGE: 380-480VAC, 60-HZ, PWR CONSUMPTN: 3.7W. MONITORS 3-PHASE POWER LINES FOR ABNORMAL CONDITIONS. DETECTS PHASE LOSS, LOW VOLTAGE AND PHASE REVERSAL. OUTPUT: SPDT 10-AMPS AT 240VAC RESISTIVE. ABS YELLOW PLASTIC COVER.8-PIN SOCKET 58964
A257B TMK POWER MONITOR 3-PHASE 480VAC, AUTO RESET, ADJ RANGE: 380-480VAC, 60-HZ,...
813S-V3-480V AB VOLTAGE MONITOR RELAY 2773918
813S-V3-480V AB VOLTAGE MONITOR RELAY
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Price: $69.23 ea
Available: 23 ea
Price: $361.00 ea
Available: 76 ea
Not available for purchase without an account.
809S-C1-10A-230 AB BULLETIN 809S CURRENT MONITORING RELAY 2783106
809S-C1-10A-230 AB BULLETIN 809S CURRENT MONITORING RELAY
817S-PTC-115 AB MACHINEALERT THERMISTOR RELAY 61259896571 2786297
817S-PTC-115 AB MACHINEALERT THERMISTOR RELAY 61259896571
Price: $206.00 ea
Available: 2 ea
Not available for purchase without an account.
Price: $128.00 ea
Available: 1-2 weeks
Not available for purchase without an account.
814S-PF3-480V-10A AB MACHINEALERT POWER FACTOR RELAY 61259896577 3277586
814S-PF3-480V-10A AB MACHINEALERT POWER FACTOR RELAY 61259896577
813S-V3-230V AB MACHINEALERT VOLTAGE RELAY 88563009877 2855362
813S-V3-230V AB MACHINEALERT VOLTAGE RELAY 88563009877
Price: $373.00 ea
Available: 1-2 weeks
Not available for purchase without an account.
Price: $361.00 ea
Available: 1-2 weeks
Not available for purchase without an account.
PLR240A SSAC 3 PHASE LINE MONITOR PLUG-IN ZZZZ 131719
PLR240A SSAC 3 PHASE LINE MONITOR PLUG-IN ZZZZ
DPA01CM44 CARLO GAVAZZI RELAY E-MECH; PHASE MONITOR; SPDT CUR-RTG 8/5AAC/ADC; CTRL-V 208-480AC; DIN RAIL MNT 70014453 2449064
DPA01CM44 CARLO GAVAZZI RELAY E-MECH; PHASE MONITOR; SPDT CUR-RTG 8/5AAC/ADC; CTRL-V...
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Price: $122.19 ea
Available: 1-2 weeks
 Qty
Price: $184.35 ea
Available: 1-2 weeks
817S-PTC-230 AB MACHINEALERT THERMISTOR MONITORING RELAY 61259896572 3459533
817S-PTC-230 AB MACHINEALERT THERMISTOR MONITORING RELAY 61259896572
A158B TMK 3-PHASE MONITOR 480V A/R:380-500VAC 60Hz 1.5WATTS W/AUTO RESET, SURFACE MOUNT 2248463
A158B TMK 3-PHASE MONITOR 480V A/R:380-500VAC 60Hz 1.5WATTS W/AUTO RESET, SURFACE...
Price: $128.00 ea
Available: 1-2 weeks
Not available for purchase without an account.
 Qty
Price: $84.62 ea
Available: 5-8 days
18-480 TMK 3-PHASE MONITOR W/TRIP & RESTART DELAYS SP/DT 3581673
18-480 TMK 3-PHASE MONITOR W/TRIP & RESTART DELAYS SP/DT
19-208/240 TMK 3-PHASE MONITOR 3609522
19-208/240 TMK 3-PHASE MONITOR
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Price: $73.85 ea
Available: 3 ea
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Price: $73.85 ea
Available: 5-8 days
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