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.

Lilttelfuse LSRU-115-AL-1.5 Load Sensor 115V 0-10 Amp with Alarm Logic SymCom LSRU-115-AL-1.5, MSRLSRU115AL1.5, preset load sensor, 115V current sensor, lockout protection,
Price: $182.66
Availability: Special Order
Littelfuse/Symcom Item #: MSRLSRU115AL1.5 -
Littelfuse  350-200-2-9 Three-Phase Voltage Monitor MSR350-200-2-9, SymCom 350-200-2-9, 190-240V, Three-Phase Voltage Monitor, voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $263.87
Availability: Special Order
Littelfuse/Symcom Item #: MSR350-200-2-9 -
Littelfuse 102-600 Three-Phase Voltage Monitor MSR102-600, Littelfuse 102-600 475-600V Three-Phase Voltage Monitor, voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $154.14
Availability: Special Order
Littelfuse/Symcom Item #: MSR102-600 -
Littelfuse 102A Three-Phase Voltage Monitor Restart Delay MSR102A, Littelfuse 102A, 190-480V, Three-Phase Voltage Monitor, Restart Delay, Three-Phase voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $168.62
Availability: Special Order
Littelfuse/Symcom Item #: MSR102A -
Littelfuse 102A-2 Three-Phase Voltage Monitor Restart Delay MSR102A-2, Littelfuse 102A-2 190-480V Three-Phase Voltage Monitor Restart Delay, Three-Phase voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $181.40
Availability: Out of Stock
Littelfuse/Symcom Item #: MSR102A-2 -
Littelfuse 102A-3 Three-Phase Voltage Monitor Trip Delay MSR102A-2, Littelfuse 102A-3 190-480V Three-Phase Voltage Monitor Trip Delay, Three-Phase voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $181.40
Availability: Special Order
Littelfuse/Symcom Item #: MSR102A-3 -
Littelfuse 102A-9 Three-Phase Voltage Monitor High Voltage Detection MSR102A-9, Littelfuse 102A-9 190-480V Three-Phase Voltage Monitor High Voltage Detection, Three-Phase voltage monitor, volt monitor, monitor, voltage, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $181.40
Availability: Special Order
Littelfuse/Symcom Item #: MSR102A-9 -
Littelfuse 111P with Enclosure 1/3 to 1.0HP MSR111PENCL, SymCom 111P-ENCL, Enclosure for 111P motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
In Stock!
Price: $230.50
Availability: In Stock
Littelfuse/Symcom Item #: MSR111P-ENCL -
Littelfuse three phase voltage monitor
Price: $96.87
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: $91.34
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: $115.36
Availability: Special Order
Littelfuse/Symcom Item #: MSR202200SP-NHV -

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