1SDA062945R1 ABB T7L 1250 PR231/P-I 1250 A 3-Pole MCCB

Why Choose the ABB 1SDA062945R1 T7L 1250 Circuit Breaker?

The ABB 1SDA062945R1, extended product type T7L 1250 PR231/P I In=1250A 3p F F M, is a high-performance moulded case circuit breaker (MCCB) designed for switching and short-circuit protection in high-current low-voltage electrical distribution systems. As part of the established ABB SACE Tmax T7 series, it combines a 1250 A rated uninterrupted current with a PR231/P-I electronic trip unit and the high fault-breaking performance of the T7L platform.

This configuration is a fixed three-pole circuit breaker with front terminals and a stored-energy, motorisable operating mechanism, making it suitable for demanding industrial switchboards and power distribution assemblies. The PR231/P-I solid-state release provides adjustable instantaneous short-circuit protection, enabling rapid interruption of high fault currents and effective protection of electrical equipment and distribution circuits.

With a rated uninterrupted current of 1250 A and a rated ultimate short-circuit breaking capacity of 120 kA at 380–415 V AC, the T7L 1250 is engineered for installations with high prospective fault currents. Its robust Tmax construction, electronic protection and motorisable operating mechanism make it well suited to industrial plants, infrastructure and large low-voltage power distribution systems.

Key Advantages

• High-performance ABB SACE Tmax T7L moulded case circuit breaker for demanding power distribution applications.
• 1250 A rated uninterrupted current for high-current electrical systems.
• 120 kA ultimate breaking capacity at 380–415 V AC for networks with high prospective fault currents.
• PR231/P-I electronic trip unit providing adjustable instantaneous short-circuit protection.
• Three-pole fixed configuration with front terminals for switchboard installation.
• Stored-energy operating mechanism designed for reliable switching.
• Motor drive can be fitted for remote and automated circuit breaker operation.

Key Features

• ABB SACE Tmax T7L 1250 series MCCB.
• 1250 A rated uninterrupted current.
• PR231/P-I solid-state electronic release.
• Adjustable instantaneous short-circuit protection.
• 120 kA Icu at 380–415 V AC.
• Three-pole construction.
• Fixed circuit breaker installation format.
• Front terminals for main power connections.
• Adjustable instantaneous short-circuit release from 1250–12500 A.
• Rated operational voltage of 690 V AC.
• Rated insulation voltage of 1000 V.
• Motor drive available as an option for automated operation.

High-Performance Protection for Power Distribution

Moulded case circuit breakers such as the ABB Tmax T7L provide switching and protection for low-voltage electrical distribution systems exposed to substantial fault currents. By rapidly interrupting short-circuit currents, the breaker helps protect cables, switchgear and connected electrical equipment while supporting the safety and availability of the installation.

The PR231/P-I electronic trip unit provides adjustable instantaneous short-circuit protection, allowing the protection threshold to be matched to the requirements of the electrical network. Combined with the high breaking capacity and motorisable stored-energy mechanism of the T7L platform, the 1SDA062945R1 provides a robust solution for high-current industrial distribution systems requiring dependable fault interruption and flexible switching operation.

Typical Applications

• Main and sub-main low-voltage distribution boards.
• Industrial switchboards and power distribution assemblies.
• Manufacturing and process plants.
• Commercial and infrastructure power distribution.
• High-current feeder and equipment protection.
• Automated electrical distribution systems.
• Electrical networks with high prospective short-circuit currents.