Part A4BY601 covers the 601A rating point in Mersen’s A4BY Series. For selection, note the 600V AC / 300V DC rating and 200kA AC / 100kA DC interrupting data. Its selection value is strongest where the circuit needs 4-second minimum time delay at 500% rating for service and feeder protection.
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A4BY601 is Mersen’s 601A catalog option in the A4BY Series. For coordination, the key ratings are 600V AC / 300V DC and 200kA AC / 100kA DC interrupting performance. The design focuses on 4-second minimum time delay at 500% rating for service and feeder protection. The Class L format uses blade terminals with cartridge/clip mounting. Typical selection contexts include Panelboards, Switchboards, Mains. Check the official Mersen datasheet before final equipment coordination.
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