1SDA100779R1 ABB XT6H 1000 Ekip Dip LSI 1000 A 4-Pole Fixed Circuit Breaker

Why Choose the ABB 1SDA100779R1 XT6H 1000 Ekip Dip LSI Circuit Breaker?

The ABB 1SDA100779R1 is a SACE Tmax XT6H moulded-case circuit breaker designed for high-current low-voltage power distribution and protection applications. Rated at 1000 A, this fixed 4-pole circuit breaker features front terminals and an Ekip Dip LSI solid-state electronic trip unit.

The Ekip Dip LSI release combines long-time overload, short-time short-circuit and instantaneous short-circuit protection. Its electronic DIP-switch interface enables protection parameters to be configured for coordination with feeders, cables and downstream protective devices, making it a practical solution for demanding distribution networks.

The XT6H version provides a rated ultimate short-circuit breaking capacity of 70 kA at 415 V AC and 25 kA at 690 V AC. Combined with its 1000 A rating and four-pole construction, the 1SDA100779R1 provides robust protection for industrial and commercial systems with high prospective fault currents.

Key Advantages

• 1000 A rated current for high-current low-voltage distribution applications.
• 4-pole construction for three-phase systems incorporating neutral switching.
• Ekip Dip LSI electronic protection covers overload and multiple levels of short-circuit fault.
• Short-circuit protection adjustable over a 1–10 × In range with time-delay capability.
• 70 kA ultimate breaking capacity at 415 V AC for installations with demanding fault levels.
• Fixed construction with front terminals for integration into compatible switchboards and distribution assemblies.

Key Features

• ABB SACE Tmax XT6H moulded-case circuit breaker.
• 1000 A rated uninterrupted current (Iu).
• 4-pole configuration.
• Ekip Dip LSI electronic trip unit.
• Solid-state electronic release for AC applications.
• Long-time (L) overload protection.
• Short-time (S) short-circuit protection.
• Instantaneous (I) short-circuit protection.
• Short-circuit protection adjustable over 1–10 × In with time-delay capability.
• Fixed circuit breaker execution.
• Front terminals for main power connections.
• H breaking-capacity class.
• 70 kA ultimate short-circuit breaking capacity at 415 V AC.
• 25 kA ultimate short-circuit breaking capacity at 690 V AC.

High-Breaking-Capacity Electronic LSI Protection

Electronic LSI protection combines three complementary protection functions within a single circuit breaker release. Long-time protection responds to sustained overload conditions, short-time protection provides a controlled response to short-circuit currents for improved selectivity, and instantaneous protection provides rapid interruption of severe short-circuit faults.

The ABB 1SDA100779R1 combines these functions with the 1000 A XT6H platform and a 70 kA at 415 V AC ultimate breaking capacity. Its four-pole construction, fixed mounting and front terminals make it particularly suitable for high-current switchboards where dependable fault interruption, neutral switching and configurable electronic protection are required.

Typical Applications

• Industrial low-voltage distribution switchboards.
• Four-pole three-phase electrical distribution systems.
• Main and sub-main power distribution.
• High-current feeder and cable protection.
• Installations with high prospective short-circuit currents.
• Manufacturing and process plant electrical systems.
• Commercial and infrastructure power distribution.
• Transformer-fed distribution systems.
• ABB Tmax XT6 installations requiring 1000 A LSI electronic protection.