Why Choose the ABB 1SDA068311R1 Tmax XT4S Moulded Case Circuit Breaker?
The ABB 1SDA068311R1 is a high performance Tmax XT4S moulded case circuit breaker (MCCB) designed to protect low voltage electrical distribution systems against overloads and short circuits. As part of the dependable ABB SACE Tmax XT series, it provides reliable circuit protection for industrial, commercial and infrastructure applications.
This fixed three-pole MCCB features a TMA thermomagnetic trip unit, combining thermal overload protection with adjustable instantaneous magnetic short circuit protection. Its front terminal configuration supports efficient installation in switchboards, distribution boards and control panels.
With a 225 A rated current, 250 A frame size, 690 V AC operating voltage and high short circuit performance, the ABB 1SDA068311R1 is well suited to demanding electrical installations where safety, reliability and compact panel integration are essential.
Key Advantages
- High quality ABB Tmax XT4S moulded case circuit breaker.
- 225 A rated current for industrial power distribution.
- Three-pole fixed MCCB with front terminals.
- TMA thermomagnetic release for overload and short circuit protection.
- Adjustable magnetic trip range from 1125 to 2250 A.
- Compact XT4 frame for efficient switchboard design.
- Reliable protection for feeders, panels and machinery circuits.
- Manufactured in accordance with IEC 60947-2.
Key Features
- ABB SACE Tmax XT4S series.
- Product code: 1SDA068311R1.
- Rated current: 225 A.
- 250 A frame size.
- Three-pole fixed configuration.
- TMA thermomagnetic trip unit.
- Magnetic trip setting: 1125 to 2250 A.
- Operating voltage: up to 690 V AC.
- Front terminal connections.
- IP20 protection rating.
Reliable Protection for Industrial Power Distribution
Moulded case circuit breakers such as the ABB Tmax XT4S are designed to disconnect electrical circuits during overload or short circuit fault conditions. This helps protect cables, equipment and downstream circuits while supporting safe, reliable operation across low voltage installations.
The ABB 1SDA068311R1 combines compact construction, strong short circuit performance and adjustable thermomagnetic protection, making it suitable for modern switchboards, industrial panels and demanding distribution applications.
Typical Applications
- Main and sub-distribution boards.
- Industrial switchboards.
- Commercial electrical panels.
- Manufacturing facilities.
- Feeder and machinery protection.
- OEM control panels.
- Infrastructure and utilities.
- Low voltage power distribution systems.
