MTW1-2000 to MTW1-7500 ACB Circuit Breaker Drawer Fixed Style for Power Distribution Systems

For a 400A panel upgrade or a full 7500A substation feed, this is the main disconnect that handles overloads and short circuits without welding contacts—we sell drawer and fixed versions, and the drawer style is easier to swap out during maintenance.

400V or 690V at 50Hz, impulse withstand hits 8000V at 2000 meters altitude (you'll need to derate above that, though the max is 12000V), and teh current range runs from 400A all the way to 7500A—basically, it covers everything form a small industrial feeder to a large distribution bus.

Most buyers go with the 3-pole for standerd three-phase, but the 4-pole option handles single-phase earth faults better if your system is grounded; control voltages are AC 220V or 380V, or DC 110V and 220V, and we usually have stock on the common 1250A and 2000A ratings.

Sample pricing for a single 600A unit runs about $180–$220 depending on controller type (L, M, or H), mid-volume orders of 10–50 units drop to roughly $150 each, and bulk lots above 100 units get you under $120 per breaker—but confirm lead time because the 7500A drawer takes 20 days or so.

It's not suited for high-frequency switching or DC applicaion—this is strictly AC air-break for low-voltage distribution, and you'll want it in a 40°C max ambient enviroment (above that, you're looking at derating the continuous current by about 0.8% per degree).

Compliance with IEC 60947-2 and GB14048.2 means the COA includes the full set of trip curve tests, and our company can provide the CCC or CE certs if your inspector asks; HS code is 8536200000, so customs usually clears it as a standard power breaker.