The 1SVR730774R1300: This monitor sits between the supply and the motor contactor, watching for phase loss, phase sequence reversal, and undervoltage on three-phase systems. When a fault is detected, its internal relay drops out, opening the contactor coil circuit and protecting the load. The CM-PAS.31S is a common choice for pump stations, conveyors, and HVAC compressor banks where an unmonitored phase loss can burn out a winding in seconds.

ABB 1SVR730774R1300 CM-PAS.31S Phase & Voltage Loss Monitor,
MPN1SVR730774R1300
ABB 1SVR730774R1300 CM-PAS.31S, three-phase voltage and phase loss monitor, relays subcategory, current lifecycle stage.
$93.98 – $146.00Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.00 kgs |
Product details
MPN
1SVR730774R1300