Motortronics MVC4-TCB (Terminal Control Board for MVC4 Medium Voltage Soft Starter)

Product Description

The MVC4-TCB is the terminal control interface board for Motortronics MVC4 series medium voltage soft starter. It acts as the bridge between the main CPU board, power SCR unit, bypass contactor and customer external control wiring. It handles start-stop logic, emergency bypass, interlock signals, auxiliary relay outputs and contactor driving control, and it is the core secondary control board of MVC4 MV soft starter cabinet.

Features

• Part Number: MVC4-TCB, Brand: Motortronics (USA)
• Series: MVC4 medium voltage soft starter accessory control board
• Control supply: 120 VAC control circuit
• Core function: External I/O terminal distribution, bypass/isolation contactor control, emergency bypass circuit, shutdown interlock, time delay logic, dry contact relay outputs
• Control mode: Support 2-wire / 3-wire start-stop, momentary or maintained switch input
• Onboard components: Fuse protection, status LED indicators, configurable jumpers, terminal blocks for field wiring
• Signal interface: Connects to main CPU board, bypass contactor coil, fault interlock, remote alarm and trip circuits
• Certifications: UL, ANSI, IEC compliant for medium voltage motor control cabinet
• Manufacturer Status: Active spare part, available original new, surplus and fully tested refurbished units
• Typical gross weight: approx 0.48 kg, origin: United States
• Compatible host: MVC4 series 2.3kV ~ 13.8kV medium voltage soft starter

Applications

• Motortronics MVC4 MV soft starter cabinet internal control and wiring interface
• Mining crusher, coal conveyor, large pump and fan medium voltage motor soft start
• Water treatment, cement, chemical plant high-voltage motor starting system
• Power plant auxiliary motor soft starter control cabinet maintenance and spare replacement
• On-site cabinet wiring modification, bypass logic retrofit and fault repair

FAQ

Q: What is the difference between MVC4-TCB and MVC4-SMART-TCB?
A: MVC4-TCB is standard terminal control board; SMART-TCB is upgraded version with RJ45 communication port for connecting Msmart touch HMI panel.

Q: Can MVC4 run normally without TCB board?
A: No, TCB is mandatory for external control, bypass contactor drive and safety interlock, the soft starter cannot complete start/stop and bypass switching without it.

Q: Does this board include the main CPU and motor protection logic?
A: No. TCB is only the I/O and contactor driving interface board. The main protection, ramp and thermal model logic is implemented on the separate CPU board.