Description

ABB 1VCR000993G0002 VSC110 (110-130V) Vacuum Contactor Coil Power Supply Board

Technical Specifications

• Product Model: 1VCR000993G0002 (VSC110, 110-130V AC)
• Brand: ABB
• Warranty: One Year
• Input Voltage: 110–130 VAC 50/60Hz control circuit supply
• Operating Temperature: -20°C to +55°C
• Storage Temperature: -40°C to +70°C
• Response Time: ≤15ms coil excitation and demagnetization response delay
• Protection Class: IP20 when installed inside medium voltage contactor enclosure
• Accuracy Class: ±2% stabilized DC output for vacuum coil driving
• Output Frequency: Rectified fixed DC output, no AC ripple interference
• Rated Current Range: 600mA maximum continuous DC output current, 24VDC regulated output
• Communication Interface: Hardwired screw terminal wiring for contactor internal coil connection
• Supported Protocols: No digital communication, purely analog power conversion circuit
• Overload Capacity: Built-in surge absorption, overcurrent fuse protection, reverse voltage blocking and transient spike suppression
• Dimensions: 120mm × 40mm × 40mm PCB assembly footprint
• 

Product Overview

The ABB 1VCR000993G0002 VSC110 110-130V is a dedicated internal power conversion PCB exclusively engineered for ABB V-Contact VSC series medium voltage vacuum contactors. It takes 110–130V alternating current control power, rectifies and stabilizes it into clean 24VDC regulated power to drive the contactor’s electromagnetic vacuum interrupter coil, controlling the closing and opening actions of the high-voltage main contacts.

This circuit board resolves core reliability risks for medium voltage switching devices. It filters voltage fluctuations and inductive kickback surges generated when the contactor coil de-energizes, preventing voltage spikes from damaging auxiliary control relays, PLC output modules and nearby sensitive instrumentation. The integrated overcurrent and short-circuit protection cuts off power automatically during coil winding faults or internal board failures, avoiding contactor stuck closed or arcing faults on the medium voltage power side. Its compact embedded PCB design fits perfectly within the VSC contactor housing without modifying the original mechanical structure, enabling direct drop-in replacement during on-site maintenance.

Electrical maintenance technicians, substation automation engineers and power distribution system contractors working in power plants, mining facilities, petrochemical plants and industrial MCC rooms gain critical operational value from this component. It guarantees consistent coil actuation performance for capacitor bank switching, motor feeder protection and transformer control, extends the service life of expensive VSC vacuum contactors, and eliminates unplanned downtime caused by control circuit power supply failure.