Basler Electric MVC 232 Manual Control Module

The Basler Electric MVC 232 is a dedicated manual control module designed for remote or local operation of circuit breakers and contactors in low‑voltage power distribution systems. It accepts control voltages of 60 VAC or 55 VDC and handles continuous currents up to 20 amperes, making it suitable for a wide range of industrial and commercial switchgear applications.

Key Features

The module features a robust electromechanical design with clearly marked open/close pushbuttons and status indication. It includes built‑in anti‑pump circuitry to prevent repeated closing on a fault, as well as mechanical interlocks to ensure safe operation. The MVC 232 is housed in a compact, corrosion‑resistant enclosure that can be panel‑mounted or DIN‑rail mounted.

Technical Specifications

Control voltage: 60 VAC ±10% or 55 VDC ±10%. Continuous current rating: 20 A. Short‑time withstand rating: 200 A for 1 second. Operating temperature: ‑10°C to +60°C. Terminals accept wire sizes up to 10 AWG. The module weighs approximately 1.2 kg and measures 120 x 80 x 60 mm.

Operating Principles

When the close button is pressed, the control circuit energizes the breaker closing coil, provided that the anti‑pump logic allows it. The open button directly trips the breaker. Status LEDs indicate the position of the main contacts and the availability of control power. The module also provides auxiliary contacts for remote indication.

Applications

The MVC 232 is commonly used in motor control centers, distribution panels, and generator control cabinets. It is ideal for applications where manual override of automatic control is required, such as maintenance switching and emergency isolation.

Installation and Configuration

Installation involves mounting the module, connecting the control power and breaker trip/close circuits, and verifying the wiring against the supplied schematic. No software configuration is needed; all settings are hardware‑based. A test procedure is recommended after installation to confirm proper operation.

Maintenance and Reliability

Routine maintenance includes visual inspection of terminals and contacts, and tightening of connections. The MVC 232 is built with high‑grade components and has a long service life with minimal downtime. Periodic functional testing ensures continued reliability.

Conclusion

The Basler Electric MVC 232 offers a simple, reliable solution for manual control of circuit breakers in demanding environments. Its rugged construction and straightforward operation make it a valuable asset for any power distribution system.