It is a pure disconnecting means, not a protective device: it carries no overload or short-circuit release, so it functions as a manual load-break switch or isolator in a distribution panel, not as a circuit breaker. Rated for 690 V AC and 500 V DC, it covers common industrial voltage bands for motor feeder isolation, bus coupler switching, or transformer primary disconnection.
At 76.2 mm wide, 130 mm tall, and 70 mm deep, this occupies a standard 3-pole MCCB footprint on the DIN rail or mounting plate — the same cutout as a 3VA1 breaker of the same frame, so a panel laid out for a 3VA1 MCCB accepts this switch disconnector without re-drilling. The front terminal arrangement with busbar connection means it is intended for vertical busbar systems or plug-in distribution blocks, not for direct cable entry. Plan for busbar adapters or a distribution block upstream.
Built-in accessories — shunt trip and auxiliary switches
The three CO (changeover) contacts for auxiliary switching give you one spare set beyond the standard NO+NC for status feedback, useful if you need both a PLC input and a panel lamp without adding an interposing relay.