1SDA101820R1 ABB XT7L M 1250 Ekip Dip LIG 1250A 4-Pole MCCB

Why Choose the ABB XT7L M 1250 Ekip Dip LIG 1SDA101820R1 Circuit Breaker?

The ABB 1SDA101820R1, designated XT7L M 1250 Ekip Dip LIG In=1250A 4p F F, is a high-performance four-pole moulded case circuit breaker (MCCB) designed for protection and switching in demanding low-voltage AC power systems. Part of the ABB SACE Tmax XT7 range, it combines a 1250 A rated uninterrupted current with an Ekip Dip LIG solid-state trip unit and the high short-circuit interruption capability of the XT7L platform.

The ABB Ekip Dip LIG electronic trip unit provides long-time overload (L), instantaneous short-circuit (I) and ground-fault (G) protection. This protection combination is particularly useful where overload and rapid short-circuit protection are required alongside ground-fault protection, without the short-time protection function found on LSI and LSIG releases.

With a rated operational voltage of 690 V AC, four-pole construction, fixed installation and front terminals, the 1SDA101820R1 is engineered for integration into high-capacity switchboards and power distribution assemblies. The XT7L platform provides 120 kA interruption performance, supporting dependable fault clearing in installations with very high prospective short-circuit currents.

Key Advantages

• High-performance ABB SACE Tmax XT7 moulded case circuit breaker.
• 1250 A rated uninterrupted current for high-capacity low-voltage systems.
• Four-pole configuration suitable for three-phase systems with neutral.
• 120 kA L-class interruption performance for demanding prospective fault levels.
• Reliable Ekip Dip LIG solid-state trip unit.
• LIG functionality provides overload, instantaneous short-circuit and ground-fault protection.
• Adjustable overload protection from 500–1250 A.
• Fixed construction with front bolted connections for switchboard integration.

Key Features

• ABB SACE Tmax XT7L M series.
• 1250 A rated uninterrupted current.
• Four-pole moulded case circuit breaker.
• Ekip Dip LIG electronic / solid-state release.
• Long-time overload (L) protection.
• Instantaneous short-circuit (I) protection.
• Ground-fault (G) protection.
• L-class high interruption rating.
• 120 kA short-circuit interruption performance.
• Rated operational voltage of 690 V AC.
• Overload release adjustment from 500–1250 A.
• Instantaneous short-circuit release adjustment from 1250–12,500 A.
• Fixed installation with bolted front main-circuit connections.
• Manual toggle operation with optional motor drive capability.
• IP20 degree of protection.

High-Capacity Protection with Ground-Fault Detection

Moulded case circuit breakers such as the ABB Tmax XT7 protect low-voltage electrical systems against damaging overcurrents while providing dependable switching and isolation. The XT7L platform is designed for demanding installations, with its 120 kA interruption performance helping safeguard cables, switchgear and connected equipment where prospective short-circuit currents are particularly high.

The Ekip Dip LIG release combines adjustable long-time overload protection with instantaneous short-circuit and ground-fault protection. Together with the 1250 A rating, four-pole construction and 690 V AC operational voltage, the 1SDA101820R1 provides a robust solution for industrial, generator, transformer and plant protection applications requiring high interruption performance and ground-fault detection.

Typical Applications

• Industrial low-voltage switchboards and distribution panels.
• Transformer, generator and plant protection systems.
• Main incoming and high-current feeder circuits.
• Manufacturing and process industry electrical networks.
• Commercial and infrastructure power distribution.
• Critical power and standby electrical systems.
• Large machinery and plant distribution circuits.
• High-fault-level low-voltage electrical networks.