UVR 220/240V-T7/T7M （1SDA063552R3）_ABB_PRODUCT_吉林易择科技技术发展有限公司

Technical Data Parameter Specification / Typical Value Product Family Accessory for ABB Emax 2 (E2) Air Circuit Breakers Device Type Electronic Under-Voltage Release with Timer Article Number 1SDA063552R3 Rated Supply Voltage (Us) 220 / 240 V AC (50/60 Hz), 3-phase monitoring. Operating Voltage Range Typically 0.85 to 1.1 x Us (e.g., ~187V to 264V). The breaker can be closed within this range. Trip Threshold (U<) Adjustable, typically within a range like 70% to 95% of Us (e.g., ~154V to 228V for 220V). Trip Delay Time (t<) Adjustable, typically within a range like 0.1s to 10s (or similar). This is the key feature to ride through short dips. Reset Voltage Requires voltage to return above the threshold (plus a hysteresis) and often a manual reset of the breaker. Mounting / Compatibility Direct internal mounting onto the designated slot of an Emax 2 breaker specified by the T7/T7M interface code. Connection Wired to the three-phase supply (L1, L2, L3, N) for monitoring. Typically connects internally to the breaker's control circuit. Standards Compliance IEC/EN 60947-2 Ambient Temperature Operation: -25°C to +70°C

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DESCRIBE

The ABB UVR 220/240V-T7/T7M (Article Number 1SDA063552R3) is a factory-configured Under-Voltage Release (UVR) accessory for ABB's Emax 2 (E2) series of low voltage air circuit breakers (ACBs). This specific model is an electronic UVR with a timer, designed to provide advanced, adjustable protection against undervoltage conditions.

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