1SDA054317R1

ABB 1SDA054317R1 – high-capacity moulded case circuit breaker for industrial installations

The ABB 1SDA054317R1 (T5N 400 PR221DS-LS/I) is a fixed three-pole moulded-case circuit breaker designed for demanding industrial power distribution systems. With a rated current of 400 A, insulation voltage up to 1000 V, operational voltage up to 690 V AC, and a short-circuit breaking capacity of 36 kA at 400 V, it ensures maximum protection, reliability, and safety. Compact dimensions and front-terminal connection simplify installation and maintenance while ensuring consistent performance.

Key features and benefits

High performance protection
Rated at 400 A, designed for reliable operation in heavy-duty industrial applications requiring high power control and overload protection.

Strong short-circuit capacity
Breaking capacity up to 36 kA at 400 V AC and 20 kA at 690 V AC, ensuring safe disconnection during fault conditions.

Compact and efficient design
Fixed three-pole configuration with front terminals allows quick panel integration and easy access for wiring.

Industrial reliability
Built to meet IEC standards, providing consistent performance, long service life, and superior thermal endurance in demanding environments.

Technical specifications

• Rated current: 400 A

• Poles: 3

• Rated operational voltage: 690 V AC

• Rated insulation voltage: 1000 V

• Breaking capacity: 36 kA (400 V AC)

• Mounting type: Fixed, front terminals

• Dimensions (H×W×D): 205 × 140 × 103.5 mm

• Weight: approx. 3.5 kg

Where is the ABB 1SDA054317R1 used?
This circuit breaker is widely used in industrial electrical systems where dependable protection is required, such as:

• Main switchboards in factories and manufacturing facilities.

• Motor control centers and power distribution panels.

• Transformer and feeder protection circuits.

• Retrofit or upgrade projects in industrial and infrastructure installations.

About the manufacturer
ABB is a global leader in electrification and automation technologies, recognized for innovative and reliable products that ensure safe and efficient power distribution. The T5N 400 series reflects ABB’s dedication to performance, durability, and industrial safety excellence.