Why Choose the ABB 1SDA068326R1 Tmax XT4S Moulded Case Circuit Breaker?
The ABB 1SDA068326R1 is a high performance Tmax XT4S moulded case circuit breaker (MCCB) engineered to provide dependable overload and short circuit protection for low voltage electrical distribution systems. As part of the trusted ABB SACE Tmax XT series, it is designed for industrial, commercial and infrastructure applications requiring reliable power protection.
This fixed four-pole MCCB features a TMA thermomagnetic trip unit with adjustable thermal overload protection and adjustable instantaneous magnetic short circuit protection. The neutral pole is rated at 50% of the phase current, making it suitable for installations where reduced neutral loading is expected.
With a 250 A rated current, 250 A frame size, 690 V AC operating voltage and a 50 kA breaking capacity at 415 V AC, the ABB 1SDA068326R1 provides robust circuit protection for feeders, switchboards, OEM machinery and industrial power distribution systems.
Key Advantages
- High quality ABB Tmax XT4S moulded case circuit breaker.
- 250 A rated current for industrial power distribution.
- Four-pole fixed MCCB with 50% rated neutral.
- TMA thermomagnetic release for overload and short circuit protection.
- Adjustable instantaneous trip setting from 1250 to 2500 A.
- 50 kA breaking capacity at 415 V AC.
- Compact XT4 frame simplifies switchboard installation.
- Manufactured in accordance with IEC 60947-2.
Key Features
- ABB SACE Tmax XT4S series.
- Product code: 1SDA068326R1.
- Rated current: 250 A.
- 250 A frame size.
- Four-pole fixed configuration.
- Neutral pole rated at 50% of phase current.
- TMA thermomagnetic trip unit.
- Thermal setting range: 175 to 250 A.
- Instantaneous trip setting: 1250 to 2500 A.
- Front terminal connections.
Reliable Protection for Industrial Power Distribution
The ABB Tmax XT4S range is designed to disconnect electrical circuits safely during overload and short circuit fault conditions, helping protect cables, switchgear and connected equipment while supporting reliable operation across low voltage electrical installations.
The ABB 1SDA068326R1 combines compact dimensions, high interrupting performance and adjustable thermomagnetic protection with a reduced neutral rating, making it suitable for modern switchboards, OEM machinery and demanding industrial distribution systems.
Typical Applications
- Main and sub-distribution boards.
- Industrial switchboards.
- Commercial electrical installations.
- Four-pole distribution circuits.
- Motor feeder protection.
- OEM machinery and control panels.
- Infrastructure projects.
- Low voltage electrical systems.
