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2CDS273347R0537 ABB SU203MR-K32 Miniature Circuit Breaker 32 A 3P K Curve 10 kA UL489
ABB SU203MR-K32 is a 32 A three-pole K-curve SU200MR miniature circuit breaker with ring tongue terminals and a 10 kA UL 489 interrupting rating for industrial branch circuit protection.
£319.79
Why Choose the ABB SU203MR-K32 Miniature Circuit Breaker?
The ABB SU203MR-K32 is a high-performance three-pole miniature circuit breaker (MCB) designed for reliable branch circuit protection in industrial machinery, automation systems and electrical equipment. As part of the ABB System pro M compact SU200MR series, it combines a 32 A rated current with K-curve tripping characteristics and UL 489 branch circuit protection.
The SU203MR-K32 provides thermal-magnetic protection against overloads and short circuits. Its K tripping characteristic is particularly suited to circuits with elevated starting and inrush currents, helping accommodate inductive industrial loads while maintaining dependable overcurrent protection.
Unlike standard SU200M models, the SU200MR range incorporates ring tongue terminal connections for secure conductor termination. Combined with a three-pole configuration and 10 kA UL 489 interrupting rating, the SU203MR-K32 provides a robust solution for machinery, OEM equipment and industrial control installations.
Key Advantages
- High-performance three-pole miniature circuit breaker for UL 489 branch circuit protection.
- 32 A rated current for industrial machinery, automation and equipment circuits.
- K-curve tripping characteristic suited to circuits with elevated starting and inrush currents.
- 10 kA UL 489 interrupting rating for dependable short-circuit protection.
- Thermal-magnetic protection against both overload and short-circuit conditions.
- Ring tongue terminal connections for secure industrial wiring.
- Compact modular construction for straightforward DIN rail mounting.
Key Features
- ABB System pro M compact SU200MR series.
- 32 A rated current.
- Three-pole (3P) configuration.
- K tripping characteristic.
- 10 kA UL 489 interrupting rating.
- Thermal-magnetic overload and short-circuit protection.
- Branch circuit protection according to UL 489.
- Designed for industrial machinery and OEM electrical equipment.
- Suitable for circuits with inductive loads and elevated starting currents.
- Ring tongue terminal connections for secure conductor termination.
- System pro M compact modular construction.
- DIN rail mounting for integration into industrial control panels.
Reliable Branch Circuit Protection with Ring Tongue Connections
Miniature circuit breakers such as the ABB SU203MR-K32 automatically disconnect protected circuits when overload or short-circuit conditions occur. Its thermal-magnetic operating principle combines thermal overload protection with rapid magnetic fault-current protection, helping safeguard conductors, machinery and electrical equipment against damaging overcurrents.
The SU200MR design combines ABB's industrial circuit protection platform with ring tongue connections for secure conductor termination. The K characteristic accommodates elevated starting currents associated with many inductive industrial loads, making the SU203MR-K32 well suited to machinery, automation and OEM installations requiring dependable UL 489 branch circuit protection.
Typical Applications
- Industrial control panels and electrical enclosures.
- Machinery and OEM electrical systems.
- Three-phase industrial branch circuits.
- Automation and manufacturing equipment.
- Inductive loads and circuits with elevated starting currents.
- Installations requiring ring tongue cable connections.
- UL 489 branch circuit protection applications.
Technical Specifications
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| Certification | UL 489 | |
|---|---|---|
| Series | SU200MR / System pro M compact | |
| ABB order code | 2CDS273347R0537 | |
| Product type | Miniature circuit breaker / branch circuit breaker | |
| Product group | UL489 / UL1077 MCB | |
| Rated current | 32 A | |
| Number of poles | 3 | |
| Tripping characteristic | K | |
| Protection type | Thermal-magnetic overload and short-circuit protection | |
| UL 489 interrupting rating | 10 kA | |
| Standards | UL 489, CSA 22.2 No. 5, IEC/EN 60947-2 | |
| Terminal type | Ring tongue terminal | |
| Mounting type | DIN rail mounting | |
| Product family | System pro M compact |
Frequently Asked Questions
What is the ABB SU203MR-K32 used for?
The ABB SU203MR-K32 is a three-pole miniature circuit breaker designed to provide UL 489 branch circuit protection against overloads and short circuits in industrial machinery, automation equipment and electrical systems.
What is the current rating of the SU203MR-K32?
The SU203MR-K32 has a rated current of 32 A and uses a K tripping characteristic.
What is the interrupting rating of the ABB SU203MR-K32?
The SU203MR-K32 has a 10 kA UL 489 interrupting rating, providing robust short-circuit protection for industrial branch circuit applications.
What does the K tripping characteristic mean?
A K-curve MCB is designed to accommodate elevated starting and inrush currents compared with more sensitive trip characteristics, making it suitable for many inductive industrial loads while still providing dependable overload and short-circuit protection.
How is the ABB SU203MR-K32 different from a standard SU203M breaker?
The SU203MR-K32 belongs to ABB's SU200MR range and uses ring tongue terminal connections. This provides a secure conductor connection method for industrial wiring and distinguishes the SU200MR range from standard SU200M terminal configurations.
Trusted Industrial Circuit Protection from ABB
ABB System pro M compact SU200MR miniature circuit breakers combine UL 489 branch circuit protection with secure ring tongue terminal connections, providing a robust solution for industrial machinery, automation systems and OEM electrical equipment.
