1SDA062821R1 ABB T7L 1000 PR332/P-LI 1000 A 3-Pole MCCB

Why Choose the ABB 1SDA062821R1 T7L 1000 Circuit Breaker?

The ABB 1SDA062821R1, extended product type T7L 1000 PR332/P LI In=1000A 3p F F M, is a high-performance moulded case circuit breaker (MCCB) designed for protection and switching of high-current low-voltage electrical distribution systems. As part of the established ABB Tmax T7 series, it combines a 1000 A rated current with an advanced PR332/P electronic trip unit for dependable overload and short-circuit protection.

This T7L configuration uses a fixed three-pole breaker body with front terminals and a stored-energy operating mechanism, making it suitable for demanding industrial switchboards and power distribution assemblies. The PR332/P-LI electronic release provides adjustable long-time overload and instantaneous short-circuit protection, allowing the protection characteristics to be configured for the installation.

With a rated uninterrupted current of 1000 A and a rated ultimate short-circuit breaking capacity of 120 kA at 380–415 V AC, the T7L 1000 is engineered for installations where high fault-current performance is required. Its robust Tmax construction, electronic protection and fixed front-terminal arrangement make it well suited to industrial plants, infrastructure and large electrical distribution systems.

Key Advantages

• High-performance ABB Tmax T7L moulded case circuit breaker for demanding power distribution applications.
• 1000 A rated uninterrupted current for high-current electrical systems.
• 120 kA ultimate breaking capacity at 380–415 V AC for installations with high prospective fault currents.
• Advanced PR332/P-LI electronic trip unit with adjustable overload and instantaneous short-circuit protection.
• Three-pole fixed configuration with front terminals for switchboard installation.
• Stored-energy operating mechanism supports dependable breaker operation in industrial installations.
• Rated service voltage up to 690 V AC for broad low-voltage distribution compatibility.

Key Features

• ABB Tmax T7L 1000 series MCCB.
• 1000 A rated current.
• PR332/P-LI solid-state electronic release.
• Long-time overload and instantaneous short-circuit protection.
• 120 kA Icu at 380–415 V AC.
• Three-pole construction.
• Fixed breaker installation format.
• Front terminals for power connections.
• Electronic trip unit with LCD and keypad interface.
• Rated insulation voltage of 1000 V and impulse withstand voltage of 8 kV.

Reliable Circuit Protection for High-Power Distribution

Moulded case circuit breakers such as the ABB Tmax T7L protect electrical distribution systems against excessive current caused by overloads and short circuits. By interrupting dangerous fault currents rapidly, the breaker helps protect cables, switchgear and connected equipment while improving the safety and availability of the electrical installation.

The PR332/P-LI electronic trip unit provides adjustable protection rather than relying on fixed thermal-magnetic characteristics. This enables protection settings to be coordinated with the electrical network, while the T7L breaker platform provides the high breaking capacity required for installations with substantial prospective short-circuit currents.

Typical Applications

• Main and sub-main low-voltage distribution boards.
• Industrial switchboards and electrical control panels.
• Manufacturing and process plants.
• Commercial and infrastructure power distribution.
• Transformer secondary and feeder protection.
• High-current machinery and production systems.
• Power distribution systems with high prospective short-circuit currents.