The A4BQ Series includes A4BQ1800, rated at 1800A. Published electrical limits are 600V AC / 500V DC with 200kA AC / 100kA DC short-circuit capability. The series is intended for applications needing 4-second time delay at 500% rating and very high current limitation.
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The Mersen A4BQ1800 combines a 1800A rating with the protection characteristics of the A4BQ Series. Its electrical envelope is 600V AC / 500V DC, supported by 200kA AC / 100kA DC interrupting data. A key selection characteristic is 4-second time delay at 500% rating and very high current limitation. The Class L format uses blade terminals with cartridge/clip mounting. Typical selection contexts include Lighting & Heating, Circuit Breaker Backup, UPS DC Links. Check the official Mersen datasheet before final equipment coordination.
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30A · 600VAC / 600VDC
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30A · 600VAC / 600VDC
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30A · 600VAC / 600VDC
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30A · 600VAC / 600VDC
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30A · 600VAC / 600VDC
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30A · 600VAC / 600VDC