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2CCS863001R1325 ABB S803S-UCB32 MCB 50 kA 3P UC-B 32 A 750 V DC
ABB S803S-UCB32 is a 32 A three-pole UC-B high-performance miniature circuit breaker rated for 750 V DC with 50 kA ultimate and service short-circuit breaking capacity for demanding DC circuit protection.
£225.30
Why Choose the ABB S803S-UCB32 High Performance MCB?
The ABB S803S-UCB32 is a high-performance three-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in demanding DC electrical systems. As part of the advanced ABB S800S high-performance circuit breaker series, it combines high breaking capacity with compact modular construction for commercial and industrial power distribution applications.
This circuit breaker features an ABB UC-B tripping characteristic and a rated current of 32 A. The UCB version is designed for DC applications and provides thermal-magnetic protection against overloads and short circuits. Clear ON / OFF / TRIP contact-position indication assists operation, inspection and fault identification in professional electrical installations.
With three protected poles, a rated operational voltage of 750 V DC and both rated ultimate and service short-circuit breaking capacities of 50 kA at 750 V DC, the S803S-UCB32 is suitable for demanding DC distribution systems where high prospective fault currents may occur. Its DIN rail format and screw terminals support straightforward integration into electrical panels, industrial machinery and DC distribution equipment.
Key Advantages
- High-performance three-pole miniature circuit breaker for DC applications.
- 32 A rated current with UC-B tripping characteristic.
- 750 V DC rated operational voltage according to IEC 60947-2.
- 50 kA ultimate and service short-circuit breaking capacity at 750 V DC.
- High 1500 V insulation voltage and 8 kV impulse withstand voltage.
- Compact modular design with clear ON / OFF / TRIP contact-position indication.
Key Features
- ABB S800S high-performance MCB series.
- Three-pole configuration with three protected poles.
- 32 A rated current.
- UC-B tripping characteristic.
- 750 V DC rated operational voltage.
- 50 kA rated ultimate short-circuit breaking capacity at 750 V DC.
- 50 kA rated service short-circuit breaking capacity at 750 V DC.
- IP20 protection rating.
- Screw terminals for secure conductor connection.
- Complies with IEC/EN 60947-2.
High-Performance Protection for DC Electrical Systems
High-performance miniature circuit breakers such as the ABB S803S-UCB32 protect electrical circuits against excessive current caused by overloads and short circuits. Its thermal-magnetic protection and UC-B characteristic provide dependable circuit interruption, while the S800S platform is engineered for the demanding fault conditions encountered in professional electrical distribution systems.
The S803S-UCB32 is specifically configured for DC operation, with a rated operational voltage of 750 V DC and rated ultimate and service short-circuit breaking capacities of 50 kA at 750 V DC. Its three-pole configuration, high insulation voltage and compact modular construction make it suitable for high-voltage DC distribution, industrial equipment and other installations requiring robust DC circuit protection.
Typical Applications
- Industrial DC electrical distribution systems.
- DC control panels and switchboards.
- Industrial machinery and automation equipment.
- High-voltage DC power circuits.
- Commercial and industrial DC installations.
- Applications requiring high short-circuit breaking capacity.
Technical Specifications
| Series | S800S |
|---|---|
| Product group | S800 / S800P / S750 MCB |
| ABB order code | 2CCS863001R1325 |
| Product type | High-performance miniature circuit breaker (MCB) |
| Number of poles | 3 |
| Number of protected poles | 3 |
| Rated current | 32 A |
| Tripping characteristic | UC-B |
| Rated operational voltage | 750 V DC |
| Rated insulation voltage | 1500 V |
| Rated impulse withstand voltage | 8 kV |
| Rated ultimate short-circuit breaking capacity (Icu) | 50 kA at 750 V DC |
| Rated service short-circuit breaking capacity (Ics) | 50 kA at 750 V DC |
| Protection rating | IP20 |
| Pollution degree | 2 |
| Contact position indication | ON / OFF / TRIP |
| Terminal type | Screw terminals |
| Power loss | 9.3 W total, 3.1 W per pole at rated operating conditions |
| Operating temperature | -25 to +60 °C |
| Mounting type | DIN rail / modular installation |
| Dimensions (H × W × D) | approx. 95 × 81 × 82.5 mm |
| Weight | approx. 0.735 kg |
| Standard | IEC/EN 60947-2 |
Frequently Asked Questions
What is the ABB S803S-UCB32 used for?
The ABB S803S-UCB32 is a three-pole high-performance miniature circuit breaker designed to protect DC electrical circuits against overloads and short circuits in commercial and industrial installations.
What is the current rating of the ABB S803S-UCB32?
The S803S-UCB32 has a rated current of 32 A and uses ABB's UC-B tripping characteristic.
What voltage is the ABB S803S-UCB32 rated for?
The S803S-UCB32 has a rated operational voltage of 750 V DC according to IEC 60947-2.
What is the breaking capacity of the S803S-UCB32?
The S803S-UCB32 has rated ultimate and service short-circuit breaking capacities of 50 kA at 750 V DC, providing high-performance protection for demanding DC installations.
Which standard does the ABB S803S-UCB32 comply with?
The S803S-UCB32 is designed in accordance with IEC/EN 60947-2 for commercial and industrial circuit-breaker applications.
Trusted High-Performance Protection from ABB
ABB S800 high-performance miniature circuit breakers provide dependable overload and short-circuit protection for demanding electrical installations, combining high breaking capacity, robust construction and compact modular installation.
