1SDA100524R1 ABB XT5H 630 TMA 630-6300 4p F F InN=50%In Moulded Case Circuit Breaker

Why Choose the ABB XT5H 630 TMA 630-6300 4p F F InN=50%In?

The ABB 1SDA100524R1 is a high-performance Tmax XT5H moulded case circuit breaker (MCCB) designed for dependable protection of demanding low-voltage electrical distribution systems. Part of the ABB SACE Tmax XT series, this fixed four-pole circuit breaker combines an XT5 630 A frame with a TMA thermomagnetic trip unit rated at 630 A.

The TMA release provides adjustable thermal overload and instantaneous magnetic short-circuit protection without requiring an electronic trip unit. Its thermal overload setting is adjustable from 0.7–1 × In, equivalent to 441–630 A, while the instantaneous magnetic protection is adjustable from 5–10 × In, equivalent to 3150–6300 A.

This four-pole version incorporates neutral protection set at 50% of the phase rating, making it suitable for three-phase four-wire distribution systems where protection of the neutral conductor is required at a reduced level. The XT5H performance class provides an ultimate short-circuit breaking capacity of 70 kA at 415 V AC and 40 kA at 690 V AC.

Key Advantages

• High-performance ABB Tmax XT5H moulded case circuit breaker for demanding low-voltage installations.
• 630 A TMA thermomagnetic trip unit provides overload and short-circuit protection.
• Adjustable 441–630 A thermal overload range for effective circuit coordination.
• Adjustable 3150–6300 A instantaneous magnetic protection range.
• Four-pole configuration with neutral protection at 50% of the phase rating.
• 70 kA ultimate short-circuit breaking capacity at 415 V AC for installations with high prospective fault currents.

Key Features

• ABB SACE Tmax XT5H circuit breaker.
• 630 A rated current.
• TMA thermomagnetic release.
• Thermal overload protection adjustable from 0.7–1 × In.
• Thermal overload current range of 441–630 A.
• Instantaneous magnetic protection adjustable from 5–10 × In.
• Instantaneous short-circuit range of 3150–6300 A.
• Four-pole construction.
• Neutral protection: 50% of phase setting.
• Fixed mounting configuration.
• Front terminals for main circuit connections.
• XT5 frame size with H short-circuit performance level.

High-Performance Four-Pole Distribution Protection

Moulded case circuit breakers such as the ABB Tmax XT5 protect electrical distribution circuits, cables and connected equipment against excessive currents caused by overloads and short circuits. The TMA thermomagnetic release combines an adjustable thermal element for sustained overload protection with an adjustable magnetic element for rapid interruption of severe short-circuit currents.

The four-pole construction of the 1SDA100524R1 enables switching of all three phases and the neutral conductor, while its 50% neutral protection provides dedicated protection appropriate to installations where the neutral does not require the same current setting as the phase conductors. Combined with fixed mounting, front terminals and the XT5H high breaking-capacity class, this makes the breaker suitable for substantial industrial and commercial distribution systems.

Typical Applications

• Industrial low-voltage distribution systems.
• Main and sub-distribution switchboards.
• Three-phase four-wire feeder circuits.
• Transformer and generator distribution systems.
• Manufacturing and process installations.
• Commercial and infrastructure power distribution.