E3H 800 PR121 3P WMP_ABB_PRODUCT_吉林易择科技技术发展有限公司

Technical Parameters Parameter Specification Manufacturer ABB Product Series SACE Emax / E3H Product Type Air Circuit Breaker (ACB) Configuration Withdrawable version (W MP) Number of Poles 3‑pole (three‑phase) Rated Current (In / Iu) 800 A Rated Operational Voltage (Ue) Up to 690 V AC Rated Insulation Voltage (Ui) 1000 V AC Rated Impulse Withstand Voltage (Uimp) 12 kV Trip Unit PR121/P‑LI electronic overcurrent protection Protection Functions Overload and short‑circuit trip via PR121/P‑LI Rated Service Short‑Circuit Breaking Capacity (Ics) ~85 kA at 690 V AC Rated Ultimate Short‑Circuit Breaking Capacity (Icu) ~100 kA at lower voltages, ~85 kA at 690 V AC Rated Short‑Time Withstand Current (Icw) ~75 kA (1 s) / ~65 kA (3 s) Terminal Style Withdrawable breaker connections for switchgear Standards Compliance IEC low‑voltage circuit breaker standards Typical Application Main distribution protection, feeder breaker, industrial power panels

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DESCRIBE

The ABB E3H 800 PR121/P‑LI 3‑pole W MP Air Circuit Breaker is a high‑performance low‑voltage protective device from ABB’s SACE Emax / E3H series designed for industrial and commercial three‑phase power distribution systems. It is configured as a withdrawable (W MP) breaker, allowing easy removal and maintenance without disconnecting busbar connections. This model includes an electronic PR121/P‑LI overcurrent trip unit, providing comprehensive protection against overloads and short circuits. It is suitable for use as a main distribution breaker, feeder breaker, or critical system protection component in switchgear assemblies.

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