Electrical Monitors measure various criteria of electrical current and take corrective action when needed. Browse voltage monitors, load sensors, remote monitors, relays and more below.

SymCom 201-100-SP Single-Phase Plug-in Voltage Monitor 95-120V MSR201100SP, SymCom 201-100-SP, 201, 8-pin, 8 pin, voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $105.60
Availability: Special Order
Littelfuse/Symcom Item #: MSR201100SP -
SymCom 201-100-SP-DPDT Single-Phase Plug-in Voltage Monitor 95-120V MSR201100SPDPDT, SymCom 201-100-SP-DPDT, 201, 8-pin, 8 pin, voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $134.97
Availability: Special Order
Littelfuse/Symcom Item #: MSR201100SPDPDT -
SymCom 201-200-DPDT Single-Phase Voltage Monitor MSR201-200-DPDT, SymCom 201-200-DPDT SymCom 201-200-DPDT 190-240V Single-Phase Voltage Monitor, 11-pin plug in, voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $134.97
Availability: Special Order
Littelfuse/Symcom Item #: MSR201200DPDT -
SymCom 201-200-SP Single-Phase Plug-in Voltage Monitor 190-240V MSR201200SP, SymCom 201-200-SP, 201, 8-pin, 8 pin, voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $105.60
Availability: Special Order
Littelfuse/Symcom Item #: MSR201200SP -
SymCom 201-200-SP-DPDT Single-Phase Plug-in Voltage Monitor 190-240v MSR201200SPDPDT, SymCom 201-200-SP-DPDT, 201, 8-pin, 8 pin, voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $134.97
Availability: Special Order
Littelfuse/Symcom Item #: MSR201200SPDPDT -
SymCom 201-200-SP-T-9 Single-Phase Plug-in Voltage Monitor 190-240V MSR201200SP-T-9, SymCom 201-200-SP-T-9, 201, 8-pin, 8 pin, voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $115.62
Availability: Special Order
Littelfuse/Symcom Item #: MSR201200SPT9 -
SymCom 201-575-AU Three-Phase Voltage Monitor MSR201-575-AU, SymCom 201-575-AU 475-600V Three-Phase Voltage Monitor, 8-pin plug in, voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $131.55
Availability: Special Order
Littelfuse/Symcom Item #: MSR201-575-AU -
SymCom 201-575-AU-OT Three-Phase Voltage Monitor MSR201-575-AU-OT, SymCom 201-575-AU-OT 475-600V Three-Phase Voltage Monitor, 8-pin plug in, voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $141.52
Availability: Special Order
Littelfuse/Symcom Item #: MSR201-575-AU-OT -
SymCom 201A Three-Phase Voltage Monitor MSR201A, SymCom 201A, 190-480V Plug-in, Three-Phase voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
In Stock!
Price: $103.54
Availability: In Stock
Littelfuse/Symcom Item #: MSR201A -
SymCom 201A-9 Three-Phase Voltage Monitor MSR201A-9, SymCom 201A-9 190-480V Three-Phase Voltage Monitor, 8-pin plug in, voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $103.54
Availability: Special Order
Littelfuse/Symcom Item #: MSR201A-9 -
SymCom 201A-AU Three-Phase Voltage Monitor MSR201A-AU, SymCom 201A-AU 190-480V Three-Phase Voltage Monitor, 8-pin plug in, voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $109.95
Availability: Out of Stock
Littelfuse/Symcom Item #: MSR201A-AU -
SymCom 201A-AU-OT Three-Phase Voltage Monitor MSR201A-AU-OT, SymCom 201A-AU-OT 190-480V Three-Phase Voltage Monitor, 8-pin plug in, voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $117.54
Availability: Out of Stock
Littelfuse/Symcom Item #: MSR201A-AU-OT -

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