Description

The ABB 1SDA066551R1 is a high-quality, industrial-grade 3-pole moulded-case circuit breaker (MCCB) from ABB’s Formula A2B 250 series. It is rated for 200 A continuous current and uses a TMF (thermo-magnetic fixed) release with a large setting range from 200 A up to 2000 A, offering dependable protection against overload and short-circuit conditions. 

Designed with fixed front terminals (“F F”), this breaker is ideal for robust and stable power-distribution installations. 

Key electrical properties include:

• Rated operational voltage: 550 V AC / 250 V DC 

• Rated insulation voltage (Ui): 690 V 

• Rated ultimate short-circuit breaking capacity (Icu): 25 kA @ 240 V AC, 18 kA @ 380–415 V AC 

• Mechanical durability: 10,000 operations; Electrical durability: 4,000 cycles 

• Compact dimensions: ~150 mm (H) × 105 mm (W) × 60 mm (D) 

• Weight: ~1.1 kg 

This MCCB complies with IEC 60947-2 standards, making it suitable for commercial and industrial applications where reliable circuit protection is required.