Description

The ABB 1SDA100389R1 is a robust, high-performance four-pole moulded-case circuit breaker (MCCB) from ABB’s Tmax XT5N series. Designed for large-scale industrial and commercial power distribution, this MCCB features a TMA thermal-magnetic trip unit rated for 630 A continuous current. With a breaking capacity range of 630–6300 A (I3), it is ideal for systems that require reliable short-circuit and overload protection.

Key attributes include:

• Fixed front terminals for secure and reliable connections.

• Thermal-magnetic trip unit (TMA R 630) providing both overload and short-circuit protection.

• Rated current (In): 630 A.

• Number of poles: 4P.

• Rated operational voltage: up to ~ 690 V AC.

• High short-circuit capacity: 36 kA at 380–415 V AC (per data sheet).

• Mechanical durability: ~ 20,000 operations.

• Dimensions: ~ 186 mm (W) × 205 mm (H) × 103.5 mm (D).

• Weight: ~ 5.6 kg.

• Standard: IEC-60947 certified.

This MCCB is particularly well-suited for power distribution boards, main incomer panels, industrial load centers, and other critical power protection applications. Its fixed mounting design ensures stable installation, while the 4-pole configuration allows for neutral protection alongside phase protection.