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ABB 1SDA100435R1 XT5S 400 is a 400 A three-pole fixed moulded case circuit breaker with an MA magnetic trip unit adjustable from 2800–5200 A for industrial motor short-circuit protection.
£875.15
The ABB 1SDA100435R1 is a high-performance three-pole moulded case circuit breaker (MCCB) designed for motor short-circuit protection in demanding industrial electrical systems. Part of the advanced ABB SACE Tmax XT series, this XT5S 400 breaker combines a compact fixed design with an MA magnetic trip unit for dependable protection of motors against high fault currents.
The breaker has a 400 A rated current and uses the XT5 400 A frame. Its MA magnetic release provides adjustable instantaneous short-circuit protection from 2800–5200 A, allowing the protection threshold to accommodate the high starting currents associated with industrial motors while providing rapid interruption of short-circuit faults.
The XT5S performance level provides a rated ultimate short-circuit breaking capacity of 50 kA at 380–415 V AC. Its three-pole fixed construction and front terminal connections make the 1SDA100435R1 particularly suitable for installation in motor control centres, industrial switchboards and machinery where robust short-circuit protection is required.
Motor circuits require protection capable of accommodating normal high starting currents while responding rapidly to damaging short-circuit faults. The ABB MA magnetic release is designed for this purpose, providing adjustable instantaneous magnetic protection without a conventional thermal overload element. This allows the circuit breaker to be coordinated with a suitable motor overload relay or another dedicated overload-protection device.
With its adjustable 2800–5200 A magnetic threshold, the 1SDA100435R1 can be configured around motor starting characteristics while providing rapid interruption of high fault currents. The XT5S platform combines this motor-focused protection with compact dimensions and high short-circuit breaking performance for demanding industrial installations.
| Series | SACE Tmax XT |
|---|---|
| Order code | 1SDA100435R1 |
| EAN | 8056221005128 |
| Product type | Moulded case circuit breaker |
| Application | Motor short-circuit protection |
| Frame size | XT5 |
| Frame rating | 400 A |
| Rated current (In) | 400 A |
| Number of poles | 3 |
| Trip unit | MA |
| Release type | Magnetic |
| Instantaneous magnetic protection range | 2800–5200 A |
| Instantaneous protection setting | 7–13 × In |
| Rated operational voltage | up to 690 V AC |
| Rated ultimate breaking capacity (Icu) at 380–415 V AC | 50 kA |
| Short-circuit performance level | S |
| Mounting version | Fixed |
| Terminal connection | Front |
| Standard | IEC 60947-2 |
| Dimensions (H × W × D) | 205 × 140 × 103.5 mm |
| Net weight | approx. 4.775 kg |
The ABB 1SDA100435R1 is a three-pole moulded case circuit breaker designed primarily to provide short-circuit protection for industrial motor circuits.
The breaker has a rated current of 400 A and uses the ABB XT5 400 A frame.
The MA magnetic trip unit provides instantaneous short-circuit protection adjustable from 2800–5200 A, equivalent to 7–13 times the breaker rated current.
The MA release is intended for magnetic short-circuit protection rather than conventional thermal overload protection, so the breaker is normally coordinated with a suitable motor overload relay or equivalent overload-protection device.
The XT5S performance level provides a rated ultimate short-circuit breaking capacity of 50 kA at 380–415 V AC, making it suitable for demanding industrial motor circuits.
ABB SACE Tmax XT moulded case circuit breakers are widely used in industrial motor control systems where dependable short-circuit protection, compact installation and high breaking performance are essential.
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