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.

Littelfuse 201-200-SP-T-9 Single-Phase Plug-in Voltage Monitor 190-240V MSR201200SP-T-9, Littelfuse 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: $149.15
Availability: Special Order
Littelfuse/Symcom Item #: MSR201200SPT9 -
Littelfuse 201A Three-Phase Voltage Monitor MSR201A, Littelfuse 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
Price: $144.03
Availability: Out of Stock
Littelfuse/Symcom Item #: MSR201A -
Littelfuse 201A-9 Three-Phase Voltage Monitor MSR201A-9, Littelfuse 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: $144.03
Availability: Special Order
Littelfuse/Symcom Item #: MSR201A-9 -
Littelfuse 201A-AU Three-Phase Voltage Monitor MSR201A-AU, Littelfuse 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: $148.75
Availability: Out of Stock
Littelfuse/Symcom Item #: MSR201A-AU -
Littelfuse 201A-AU-OT Three-Phase Voltage Monitor MSR201A-AU-OT, Littelfuse 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: $156.06
Availability: Out of Stock
Littelfuse/Symcom Item #: MSR201A-AU-OT -
Littelfuse three phase voltage monitor
Price: $120.10
Availability: Special Order
Littelfuse/Symcom Item #: MSR202 -
Littelfuse 202-200-SP Single-Phase Voltage/Phase Monitor MSR202-200-SP, littelfuse 202-200-SP littelfuse 202-200-SP 190-240V Single-Phase Voltage Monitor, voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $113.13
Availability: Special Order
Littelfuse/Symcom Item #: MSR202200SP -
Littelfuse 202-200-SP-NHV Single-Phase Voltage/Phase Monitor MSR202-200-SP-NHV, littelfuse 202-200-SP-NHV littelfuse 202-200-SP-NHV 190-240V Single-Phase Voltage Monitor, voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $140.29
Availability: Special Order
Littelfuse/Symcom Item #: MSR202200SP-NHV -
Littelfuse 202-575-RP Three-Phase Voltage/Phase Monitor MSR202-575-RP, littelfuse 202-575-RP, 475-600V, Three-Phase voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $113.13
Availability: Special Order
Littelfuse/Symcom Item #: MSR202-575-RP -
Littelfuse 202RP Three-Phase Voltage/Phase Monitor MSR202-RP, Littelfuse 202-RP, 475-600V Three-Phase voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $113.13
Availability: Special Order
Littelfuse/Symcom Item #: MSR202RP -

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