Why Choose the ABB 1SDA068321R1 Tmax XT4S Moulded Case Circuit Breaker?
The ABB 1SDA068321R1 is a reliable and compact Tmax XT4S moulded case circuit breaker (MCCB) designed to protect low voltage electrical distribution systems against overloads and short circuits. As part of the trusted ABB SACE Tmax XT series, it provides dependable four-pole protection for industrial, commercial and infrastructure applications.
This fixed four-pole circuit breaker features a TMA thermomagnetic trip unit, combining adjustable thermal overload protection with adjustable instantaneous magnetic short circuit protection. Its front terminal configuration supports straightforward installation in switchboards, distribution boards and control panels.
With a 100 A rated current, 160 A frame size, 690 V AC operating voltage and 50 kA breaking capacity at 415 V AC, the ABB 1SDA068321R1 is ideal for applications requiring compact, reliable and high performance four-pole circuit protection.
Key Advantages
- High quality ABB Tmax XT4S moulded case circuit breaker.
- 100 A rated current for low voltage power distribution.
- Four-pole fixed MCCB with front terminals.
- TMA thermomagnetic release for overload and short circuit protection.
- Adjustable instantaneous trip setting from 500 to 1000 A.
- 50 kA breaking capacity at 415 V AC.
- Compact XT4 frame for efficient switchboard design.
- Manufactured in accordance with IEC 60947-2 standards.
Key Features
- ABB SACE Tmax XT4S series.
- Product code: 1SDA068321R1.
- Rated current: 100 A.
- 160 A frame size.
- Four-pole fixed configuration.
- TMA thermomagnetic trip unit.
- Thermal setting range: 70 to 100 A.
- Instantaneous trip setting: 500 to 1000 A.
- Operating voltage: up to 690 V AC.
- Front terminal connections.
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 and reliable operation across low voltage installations.
The ABB 1SDA068321R1 combines compact construction, four-pole protection and adjustable thermomagnetic release technology, making it suitable for modern switchboards, machinery panels and distribution applications where neutral isolation or four-pole switching is required.
Typical Applications
- Main and sub-distribution boards.
- Industrial switchboards.
- Commercial electrical panels.
- Four-pole power distribution circuits.
- Feeder and machinery protection.
- OEM control panels.
- Infrastructure and utilities.
- Low voltage electrical installations.
