The EZB250W12 is a 250 A EasyPact busbar, 12 ways, designed for distributing power across a row of modular devices in a low-voltage switchboard or panel. It connects up to 12 three-pole devices (or 18 two-pole, or 36 single-pole) in a single feed, with a 30 kA short-time withstand rating for 1 second — meaning it holds fault current long enough for an upstream breaker to clear without the busbar itself failing. Rated insulation voltage is 690 V AC 50/60 Hz, operational voltage 550 V AC 50/60 Hz, so it suits standard 400/480 V distribution panels with headroom for higher-voltage networks. Built to IEC 60439, the standard for factory-built assemblies (type-tested switchgear).
Dimensions: 416 mm wide, 568.5 mm high, 82.5 mm deep. No busbar extension included. The 12-way pitch matches standard EasyPact modular device spacing; verify the busbar center-to-center distance against your existing DIN-rail layout before committing the panel design.