Reference Guide Molded Case Circuit Breakers - Siemens
Type 7 – Flammable Gas Atmosphere — — ü ü ü ü ü — Type 9 – Combustion Dusttight ü ü ü ü ü ü ü — Type 5, 12 – Lint, Fine Dust, Oils, Coolants ü ü ü ü ü ü ü ü Type 12K – Semi Dusttight — — ü ü ü ü ü ü a 1-pole only. b 35-100A: 25,000 AIR at 277V AC/15-30A: 65,000 AIR at 277V AC. c For DC UPS system ...
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