1SDA104504R1 ABB E4.2S/E9 4000 Ekip Touch LSIG 3P WMP Air Circuit Breaker 900V

Why Choose the ABB 1SDA104504R1 Emax 2 Air Circuit Breaker?

The ABB 1SDA104504R1 is a high-performance SACE Emax 2 E4.2S/E9 air circuit breaker (ACB) designed for protection and switching in demanding high-current electrical distribution systems. Configured as an E4.2S/E9 4000 Ekip Touch LSIG 3p WMP 900V, this three-pole withdrawable circuit breaker moving part combines a substantial 4000 A rated current with ABB's advanced Ekip Touch LSIG electronic protection trip unit.

Part of the ABB SACE Emax 2/E9 range, the E4.2S/E9 is engineered for elevated-voltage low-voltage power-distribution applications operating at up to 900 V AC. The S performance level provides robust short-circuit interruption capability, while the three-pole configuration is suited to high-capacity three-phase distribution networks in industrial, energy and infrastructure installations.

The integrated Ekip Touch LSIG trip unit provides long-time, short-time, instantaneous and ground-fault protection through ABB's touchscreen-based Ekip platform. Combined with the withdrawable moving-part construction, the 1SDA104504R1 delivers advanced electronic protection, high-current switching and serviceability for critical switchboard applications.

Key Advantages

• High-capacity 4000 A Emax 2 air circuit breaker for demanding power-distribution systems.
• 900 V AC E9 configuration for elevated-voltage low-voltage applications.
• E4.2S/E9 performance level provides robust short-circuit interruption capability.
• Three-pole construction suited to high-current three-phase electrical distribution.
• Advanced Ekip Touch LSIG electronic trip unit with touchscreen interface.
• Long-time, short-time, instantaneous and ground-fault protection.
• Withdrawable moving-part design supports servicing, inspection and replacement in compatible switchboards.

Key Features

• ABB SACE Emax 2 E4.2S/E9 air circuit breaker.
• 4000 A rated current.
• Three-pole (3P) configuration.
• Designed for applications up to 900 V AC.
• Ekip Touch LSIG electronic protection trip unit.
• Long-time (L), short-time (S), instantaneous (I) and ground-fault (G) protection functions.
• Integrated ground-fault protection for comprehensive distribution-system protection.
• Touchscreen-based interface for protection configuration and access to electrical information.
• Withdrawable / WMP execution for use with the corresponding Emax 2 fixed part.
• Designed for high-current industrial, energy and infrastructure power distribution.

Advanced Protection for High-Capacity Power Distribution

Air circuit breakers such as the ABB Emax 2 E4.2S/E9 provide switching and electronic protection for high-current electrical distribution networks. With its 4000 A current rating, the E4.2S/E9 is suited to substantial power-distribution duties where reliable protection against overloads, short circuits and earth-related faults is essential for protecting switchboards, conductors and connected equipment.

The Ekip Touch LSIG trip unit combines dedicated long-time, short-time, instantaneous and ground-fault protection with a touchscreen interface for convenient configuration and access to electrical information. Together with the Emax 2 withdrawable construction and 900 V AC E9 configuration, the 1SDA104504R1 provides a robust and serviceable solution for demanding high-power installations.

Typical Applications

• Main incoming protection for high-current electrical switchboards.
• Industrial power-distribution systems operating up to 900 V AC.
• Manufacturing and heavy-process plants.
• Power generation and energy distribution installations.
• Data centres and critical infrastructure.
• Large commercial and industrial facilities.
• Switchboards requiring withdrawable breakers with advanced LSIG protection.