The A4BY Series includes A4BY1201, rated at 1201A. Core electrical data includes 600V AC / 300V DC operation and 200kA AC / 100kA DC interruption. The series is intended for applications needing 4-second minimum time delay at 500% rating for service and feeder protection.
Submit directly from this product page. We will reply with availability, lead time and pricing.
The Mersen A4BY1201 combines a 1201A rating with the protection characteristics of the A4BY Series. The circuit rating is 600V AC / 300V DC; published interrupting performance is 200kA AC / 100kA DC. Its circuit-protection behavior is defined by 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 Feeders, Circuit Breakers, Load Centers. Use the official Mersen datasheet to confirm final coordination and dimensions.
HP15FHM32B
32A · 1500VDC
HP15FHM32A
32A · 1500VDC
USCC4I
30A · 600VAC / 600VDC
USCC4
30A · 600VAC / 600VDC
USCC3N
30A · 600VAC / 600VDC
USCC3IN
30A · 600VAC / 600VDC
USCC3I
30A · 600VAC / 600VDC
USCC3
30A · 600VAC / 600VDC