1SDA100318R1 ABB Ekip Touch LSI 100 A XT4 4-Pole Trip Unit

Why Choose the ABB 1SDA100318R1 Ekip Touch LSI 100 A XT4 4-Pole Trip Unit?

The ABB 1SDA100318R1 is an advanced Ekip Touch LSI electronic trip unit designed for compatible SACE Tmax XT4 moulded-case circuit breakers. Rated at 100 A and configured for 4-pole applications, it combines microprocessor-based circuit protection with ABB's intuitive Ekip Touch interface for modern low-voltage power distribution.

The Ekip Touch LSI release provides long-time (L), short-time (S) and instantaneous (I) protection, covering overload and short-circuit conditions while supporting selective coordination within electrical distribution systems. Its electronic architecture allows protection settings to be adjusted to suit the characteristics of the circuit and downstream equipment.

The 1SDA100318R1 is specifically designed for XT4 4-pole circuit-breaker configurations and has a rated current of 100 A. It is supplied as a loose or configurable electronic protection release rather than a complete circuit breaker and must be combined with an appropriate compatible XT4 breaking part to form the required circuit-breaker assembly.

Key Advantages

• Advanced ABB Ekip Touch LSI electronic trip unit for SACE Tmax XT4 circuit breakers.
• 100 A rated current for compatible low-voltage distribution applications.
• LSI protection combines overload, selective short-circuit and instantaneous short-circuit protection.
• Designed specifically for compatible 4-pole ABB SACE Tmax XT4 circuit breakers.
• Long-time overload protection is adjustable over the 0.4–1 × In range.
• Short-circuit protection offers adjustable settings and time-delay capability for improved coordination.
• Ekip Touch architecture is prepared for additional measurement, communication and digital functionality.
• Part of ABB's modular SACE Tmax XT circuit-breaker ecosystem.

Key Features

• ABB Ekip Touch LSI electronic trip unit.
• 100 A rated current (In).
• Designed for SACE Tmax XT4 circuit breakers.
• 4-pole configuration.
• Long-time overload protection (L).
• Short-time selective short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• Microprocessor-based electronic protection technology.
• Touch interface for interaction with protection functions and operating information.
• Long-time protection adjustable from 0.4–1 × In.
• Short-circuit protection adjustable up to 10 × In.
• Time-delay capability supports protection coordination.
• Prepared for measurement and communication functionality.
• Loose or configurable assembly format.
• Designed in accordance with IEC 60947-2.

Advanced LSI Protection for SACE Tmax XT4

The ABB Ekip Touch LSI platform combines three complementary electronic protection functions. Long-time protection responds to sustained overloads, short-time protection provides configurable short-circuit protection with time-delay capability for selective coordination, and instantaneous protection enables rapid interruption of severe short-circuit faults.

For the 100 A 1SDA100318R1, the long-time protection setting can be adjusted from 0.4–1 × In, corresponding to approximately 40–100 A. As a separate four-pole electronic release, it can be combined with an appropriate XT4 breaking part to create a circuit breaker with the required interruption capability while retaining the advanced protection and upgrade potential of the Ekip Touch platform.

Typical Applications

• ABB SACE Tmax XT4 circuit-breaker assemblies.
• Industrial low-voltage power distribution.
• Commercial building electrical distribution.
• Main and sub-distribution switchboards.
• Manufacturing and process facilities.
• Four-pole feeder and cable protection.
• Systems requiring selective electronic short-circuit protection.
• Applications requiring configurable overload and short-circuit protection.