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Monitors & Relays
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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 CIO-120-DN-P Communications Module MSRCIO120DNP, Littelfuse CIO-120-DN-P, Communications Module
Price: $395.92
Availability: Special Order
Littelfuse/Symcom Item #: MSRCIO120DNP -
Littelfuse CIO-120-MB Communications Module MSRCIO120MB, SymCom CIO120MB, Communications Module, Stand Alone Communications Module
Price: $482.81
Availability: Special Order
Littelfuse/Symcom Item #: MSRCIO120MB -
Littelfuse CIO-777-PR Communications Module MSRCIO777PR, littelfuse CIO777PR, Communications Module, Stand Alone Communications Module
Price: $832.88
Availability: Special Order
Littelfuse/Symcom Item #: MSRCIO777PR -
Littelfuse CIO-DN-P Communications Module MSRCIODNP, littelfuse CIO-DN-P, Communications Module
Price: $361.33
Availability: Special Order
Littelfuse/Symcom Item #: MSRCIODNP -
Littelfuse CIO-EN Communications Module MSRCIOEN, SymCom CIO-EN, Communications Module
Price: $538.43
Availability: Special Order
Littelfuse/Symcom Item #: MSRCIOEN -
Littelfuse CIO-MB Communications Module MSRCIOMB, SymCom CIOMB, Communications Module, Stand Alone Communications Module
Price: $375.92
Availability: Special Order
Littelfuse/Symcom Item #: MSRCIOMB -
Littelfuse CIO-MLPII-PR Communications Module MSRCIOMLPIIPR, SymCom CIO-MLPII-PR, Communications Module, Stand Alone
Price: $606.57
Availability: Special Order
Littelfuse/Symcom Item #: MSRCIOMLPIIPR -
Littelfuse COM-420mA Communication Module For 777 AccuPower MSRCOM420MA, SymCom COM420MA, Communication Module For 777 AccuPower
Price: $252.70
Availability: Special Order
Littelfuse/Symcom Item #: MSRCOM420MA -
Littelfuse CP-5-460 Single-Phase Current Monitor MSRCP5460 SymCom CP-5-460, 460V, Single-Phase Current Monitor, current monitor, current monitor, monitor, current, protection, motor protection, pump protection, motor saver, current protection, run dry protection, SymCom
Price: $396.22
Availability: Special Order
Littelfuse/Symcom Item #: MSRCP5460 -
Littelfuse Informer Remote Diagnostic Tool For Single-Phase PumpSavers Informer, handheld, diagnostic tool, single-phase, PumpSaver®, PumpSaver®Plus, infrared LED, transmitters.
In Stock!
Price: $258.28
Availability: In Stock
Littelfuse/Symcom Item #: MSRINFORMER -
Littelfuse Informer-MS Remote Diagnostic Tool For Three-Phase PumpSavers The Informer-MS. handheld diagnostic tool, MotorSaver®, Model 455s equipped with infrared LED transmitters*
Price: $258.28
Availability: Special Order
Littelfuse/Symcom Item #: MSRINFORMERMS -
Littelfuse LSRX Load Sensor Self-Powered 5-200 Amp Fast-on Terminals Littelfuse LSRX, MSRLSRX, self-powered, GO/NO GO, AC current sensor,
Price: $85.52
Availability: Special Order
Littelfuse/Symcom Item #: MSRLSRX -

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