Technical Specifications
Parameter Specification
Part Number / Model 1SDA038675R1
Product Type Molded Case Circuit Breaker (MCCB)
Series / Family ABB SACE Isomax S5N
Trip Unit / Release Electronic PR211 (LI or similar)
Number of Poles 3‑pole (3P)
Rated Current (In) 630 A
Frame / Uninterrupted Current (Iu) ~630 A
Application Industrial low‑voltage AC distribution
Rated Operational Voltage (Ue) Up to 690 V AC (typical for low‑voltage MCCBs)
Rated Insulation Voltage (Ui) 1000 V AC (typical for this class)
Rated Impulse Withstand Voltage (Uimp) 8 kV
Short‑Circuit Breaking Capacity (Icu) High interrupting capability across common system voltages (manufacturer spec varies by unit and release type)
Service Breaking Capacity (Ics) Similar to Icu depending on voltage and release settings
Trip Settings / Functions Adjustable electronic protection (long‑time, short‑time/instantaneous functions) via PR211 unit
Mounting Type Fixed installation with front terminals
Standards Compliance IEC/EN 60947‑2 (typical for MCCBs)
Typical Use Main breaker, feeder protection, motor protection coordination
Weight & Dimensions Hefty industrial breaker (weight and size typical for 630 A class breakers)
The ABB 1SDA038675R1 is a three‑pole molded case circuit breaker (MCCB) from ABB’s SACE Isomax S series, model S5N630 with an electronic PR211 trip unit. It is designed to provide reliable overload and short‑circuit protection for industrial low‑voltage AC power distribution. With a 630 A rated current and robust interrupting capability, this breaker is suitable for use as a main or feeder protection device in commercial and industrial electrical systems. The electronic PR211 release offers adjustable protection settings and precise control over trip characteristics.