1SDA054249R1 ABB T4V250 TMA 160-1600 160 A 3-Pole MCCB

Why Choose the ABB T4V250 TMA 160-1600 1SDA054249R1 Circuit Breaker?

The ABB 1SDA054249R1 is a high-performance SACE Tmax T4V 250 moulded case circuit breaker (MCCB) designed for reliable protection and isolation of low-voltage electrical distribution systems. Configured as a fixed three-pole breaker with front terminals, it combines a 160 A rated current with ABB's TMA thermomagnetic trip unit for dependable overload and short-circuit protection.

Part of the proven ABB SACE Tmax T4 series, the T4V250 is designed for demanding industrial and commercial power distribution applications where high short-circuit interruption capability is required. Its TMA release combines adjustable thermal overload protection with adjustable instantaneous magnetic protection, helping safeguard cables, equipment and distribution circuits against damaging overcurrents.

The TMA release is rated at 160 A, with thermal protection adjustable from 112–160 A and instantaneous magnetic protection adjustable from 800–1,600 A. The T4V performance level provides an ultimate short-circuit breaking capacity of 200 kA at 380–415 V AC, making the 1SDA054249R1 particularly suitable for electrical installations with high prospective fault currents.

Key Advantages

• High-performance ABB SACE Tmax T4V moulded case circuit breaker.
• 160 A rated current for industrial and commercial distribution circuits.
• Three-pole configuration suitable for three-phase electrical systems.
• TMA thermomagnetic trip unit with adjustable overload and short-circuit protection.
• 112–160 A thermal adjustment range for flexible overload protection.
• 800–1,600 A instantaneous magnetic adjustment range.
• 200 kA ultimate breaking capacity at 380–415 V AC.
• Fixed mounting with front terminals for straightforward switchboard integration.

Key Features

• ABB SACE Tmax T4V 250 circuit breaker platform.
• 160 A rated current.
• 3-pole construction.
• TMA thermomagnetic release.
• Adjustable thermal protection from 0.7–1 × In.
• Adjustable instantaneous magnetic protection from 5–10 × In.
• 200 kA Icu at 380–415 V AC.
• High breaking capacity for demanding low-voltage distribution systems.
• Fixed circuit breaker configuration with front terminals.

Reliable Circuit Protection for Power Distribution

Moulded case circuit breakers such as the ABB SACE Tmax T4V protect electrical distribution circuits against damaging overcurrents while also providing a convenient means of circuit isolation. The T4V platform combines compact construction with exceptionally high short-circuit interruption performance, making it suitable for demanding industrial and commercial low-voltage distribution applications.

The TMA thermomagnetic trip unit provides complementary overload and short-circuit protection. Its adjustable thermal element responds to sustained overload currents that could overheat cables and connected equipment, while the adjustable magnetic element provides rapid tripping during severe short-circuit conditions. This flexibility allows the protection characteristics to be matched more closely to the requirements of the electrical circuit.

Typical Applications

• Industrial low-voltage distribution systems.
• Main and sub-distribution switchboards.
• Electrical control and distribution panels.
• Commercial building power distribution.
• Manufacturing and process installations.
• Machinery and plant electrical distribution.