2CDH782010R0537 ABB S752DR-K32 32 A 2-Pole Type K Selective 25 kA Main Circuit Breaker

Why Choose the ABB S752DR-K32 Selective Main Circuit Breaker?

The ABB S752DR-K32 is a high-performance two-pole selective main circuit breaker (SMCB) designed to provide dependable overload and short-circuit protection in electrical distribution systems where selective coordination and continuity of supply are important. Part of the ABB S750 DR series, this model combines a 32 A rated current, K selective tripping characteristic and high short-circuit breaking capacity.

The S752DR-K32 uses a voltage-independent operating principle and is designed for coordinated protection with other circuit breakers in an electrical installation. The selective operating behaviour of the S750 DR range helps ensure that faults are disconnected as locally as possible, reducing unnecessary interruption to unaffected circuits and supporting reliable power distribution.

With a two-pole configuration, 32 A rated current and a specified short-circuit breaking capacity of 25 kA, the S752DR-K32 provides robust protection for demanding commercial and industrial distribution applications. Its modular DIN-rail construction supports straightforward installation in compatible distribution equipment, while ABB order code 2CDH782010R0537 identifies this specific K-characteristic model.

Key Advantages

• Selective main circuit breaker for coordinated electrical protection.
• 32 A rated current with two-pole configuration.
• K selective tripping characteristic.
• High 25 kA short-circuit breaking capacity.
• Provides dependable overload and short-circuit protection.
• Voltage-independent operating principle.
• Selective coordination helps minimise interruption to unaffected circuits.
• Compact DIN-rail mounting for electrical distribution equipment.

Key Features

• ABB S750 DR selective main circuit breaker series.
• 32 A rated current.
• Two-pole configuration.
• K selective tripping characteristic.
• 25 kA short-circuit breaking capacity.
• Selective operation for coordinated distribution protection.
• Voltage-independent protection principle.
• Overload and short-circuit protection functions.
• Modular construction for distribution-board applications.
• DIN-rail mounting for straightforward installation.

Reliable Selective Protection for Electrical Distribution

Selective main circuit breakers such as the ABB S752DR-K32 are designed to coordinate with other protective devices so that an electrical fault can be disconnected as close as possible to its source. This selective behaviour helps prevent unnecessary disconnection of healthy circuits, improving continuity and availability throughout the electrical distribution system.

The ABB S750 DR range combines overload and short-circuit protection with selective operation and a voltage-independent design. These characteristics make the series suitable for distribution systems where dependable fault protection must be combined with effective coordination between upstream and downstream protective devices.

Typical Applications

• Electrical energy distribution systems requiring selective protection.
• Main distribution and sub-distribution boards.
• Commercial and industrial electrical installations.
• Building power distribution systems.
• Installations requiring coordination with downstream miniature circuit breakers.
• Distribution systems where continuity and availability of supply are priorities.