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2CDH783010R0537 ABB S753DR-K32 Selective Main Circuit Breaker 3P 32A 25kA
ABB S753DR-K32 is a 3-pole 32 A K-selective main circuit breaker with 25 kA short-circuit breaking capacity for reliable protection and selective coordination in three-phase low-voltage electrical distribution systems.
£243.66
Why Choose the ABB S753DR-K32 Selective Main Circuit Breaker?
The ABB S753DR-K32 is a high-performance 3-pole selective main circuit breaker (SMCB) designed to provide reliable overload and short-circuit protection in low-voltage electrical distribution systems where selective coordination and continuity of supply are important. As part of the ABB S750 DR series, it provides robust main circuit protection for demanding three-phase power distribution applications.
The S753DR-K32 features a K selective tripping characteristic and voltage-independent operating principle. Its selective behaviour supports coordination with downstream protective devices, helping faults to be disconnected close to their source while reducing unnecessary interruption to unaffected circuits.
With a rated current of 32 A, a 3-pole configuration and short-circuit breaking capacity of 25 kA, the S753DR-K32 is well suited to three-phase distribution circuits requiring dependable selective protection. Its DIN-rail-mounted construction enables straightforward integration into electrical distribution boards and panel assemblies.
Key Advantages
- Selective main circuit breaker for three-phase electrical distribution systems.
- 32 A rated current for distribution and feeder circuits.
- 3-pole configuration for three-phase circuit protection.
- 25 kA short-circuit breaking capacity for robust fault protection.
- K selective characteristic supports coordinated operation with downstream protective devices.
- Voltage-independent operation provides dependable protective performance.
Key Features
- ABB S750 DR selective main circuit breaker series.
- 32 A rated current.
- 3-pole construction.
- K selective tripping characteristic.
- 25 kA short-circuit breaking capacity.
- Voltage-independent operating principle.
- Selective operation helps improve continuity of electrical supply.
- DIN-rail mounting for straightforward distribution-board installation.
Reliable Selective Protection for Three-Phase Distribution
Selective main circuit breakers coordinate with downstream protective devices so that electrical faults can be disconnected as close as possible to their source. This helps maintain power to unaffected circuits, limits the extent of an outage and improves availability throughout an electrical distribution system.
The ABB S750 DR series combines overload and short-circuit protection with selective operation. The S753DR-K32 is therefore well suited to three-phase installations requiring reliable main circuit protection together with effective coordination of downstream circuit breakers.
Typical Applications
- Main protection in three-phase low-voltage electrical distribution systems.
- Commercial and industrial distribution boards.
- Building electrical distribution installations.
- Three-phase feeder circuits requiring selective protection.
- Distribution systems with downstream miniature circuit breakers.
- Installations where continuity of electrical supply is important.
Technical Specifications
| Series | S750 DR |
|---|---|
| ABB order code | 2CDH783010R0537 |
| Product type | Selective main circuit breaker (SMCB) |
| Number of poles | 3 |
| Rated current | 32 A |
| Tripping characteristic | K selective |
| Short-circuit breaking capacity | 25 kA |
| Mounting type | DIN rail |
| Operating principle | Voltage-independent |
| Standard | IEC/EN 60947-2 |
Frequently Asked Questions
What is the ABB S753DR-K32 used for?
The S753DR-K32 is used as a selective main circuit breaker for overload and short-circuit protection in three-phase low-voltage electrical distribution systems.
What is the rated current of the S753DR-K32?
The ABB S753DR-K32 has a rated current of 32 A.
How many poles does the S753DR-K32 have?
The S753DR-K32 is a 3-pole selective main circuit breaker suitable for three-phase distribution circuits.
What is the breaking capacity of the S753DR-K32?
The S753DR-K32 provides a short-circuit breaking capacity of 25 kA.
What does the K selective characteristic provide?
The K selective characteristic supports coordinated operation with downstream protective devices, helping local faults to be disconnected while maintaining electrical supply to unaffected circuits.
Trusted ABB Circuit Protection
ABB S750 DR selective main circuit breakers provide dependable overload and short-circuit protection with selective coordination for electrical distribution systems where continuity of supply and reliable fault isolation are important.
