1SDA081061R1 ABB T5L 400 Ekip E-LSIG 400 A 4-Pole Fixed Circuit Breaker

Why Choose the ABB T5L 400 Ekip E-LSIG Circuit Breaker?

The ABB T5L 400 Ekip E-LSIG, order code 1SDA081061R1, is a high-performance SACE Tmax T5 moulded case circuit breaker designed for protection and switching in low-voltage power distribution systems. This model combines a 400 A rated current, four-pole construction and fixed installation with ABB's Ekip E-LSIG electronic trip unit.

As part of the ABB SACE Tmax T5 series, the T5L 400 is engineered for industrial, commercial and infrastructure installations requiring dependable overload, short-circuit and earth-fault protection. The Ekip E-LSIG release provides long-time, short-time, instantaneous and ground-fault protection functions for comprehensive supervision of the protected circuit.

This version is supplied as a four-pole fixed circuit breaker with front terminals. Its 400 A rating and electronic protection make it suitable for main distribution, feeder protection and other applications where reliable protection and isolation of four-pole low-voltage circuits are required.

Key Advantages

• High-performance 400 A Tmax T5 moulded case circuit breaker.
• Ekip E-LSIG electronic trip unit provides comprehensive circuit protection.
• Long-time, short-time, instantaneous and ground-fault protection functions.
• Four-pole construction for compatible three-phase plus neutral distribution systems.
• Fixed mounting provides robust integration into switchboards and distribution panels.
• Front terminals support straightforward electrical connection within compatible assemblies.

Key Features

• ABB SACE Tmax T5L series.
• 400 A rated current.
• Four-pole construction.
• Ekip E-LSIG electronic protection release.
• LSIG protection functions.
• Long-time overload protection.
• Short-time and instantaneous short-circuit protection.
• Ground-fault protection.
• Fixed execution.
• Front terminal configuration.

Electronic Protection for Low-Voltage Power Distribution

Electronic trip units continuously monitor electrical conditions and command the circuit breaker to open when configured protection thresholds are exceeded. The Ekip E-LSIG release combines long-time overload protection with short-time and instantaneous short-circuit protection and ground-fault protection, providing a comprehensive protection package for demanding distribution circuits.

The ABB T5L 400 combines this electronic protection with a fixed four-pole construction and front terminals. This configuration is well suited to switchboards and distribution assemblies requiring a permanently installed breaker with accessible front connections and protection of all four poles.

Typical Applications

• Industrial low-voltage distribution switchboards.
• Main and sub-main power distribution.
• Four-pole feeder protection.
• Commercial building electrical distribution.
• Infrastructure and utility installations.
• Power distribution and control panels.