ABB 1SDA067439R1 Tmax XT1S 160 moulded case circuit breaker with TMD thermomagnetic release, 50 A rated current, four-pole fixed design, front terminals and 50 kA breaking capacity at 415 V AC for low voltage electrical distribution systems.
£448.07
The ABB 1SDA067439R1 is a reliable moulded case circuit breaker (MCCB) from the high performance ABB Tmax XT series, designed to protect low voltage electrical distribution systems against overloads and short circuits. Identified as XT1S 160 TMD 50-500 4p F F, this breaker provides dependable circuit protection for industrial, commercial and panel building applications.
This ABB Tmax XT1S circuit breaker features a TMD thermomagnetic release, combining thermal overload protection with magnetic short-circuit protection in a compact fixed device. Its front terminal configuration allows straightforward installation inside switchboards, distribution panels, control cabinets and OEM machinery.
With a rated current of 50 A, a four-pole configuration and an XT1S short-circuit performance class, the 1SDA067439R1 is ideal for protecting low voltage circuits where reliable switching and protection across all poles is required. Its compact design and robust ABB engineering make it a practical choice for modern electrical distribution systems.
Moulded case circuit breakers such as the ABB Tmax XT1S protect electrical installations by automatically disconnecting circuits during overload or short-circuit conditions. This helps reduce the risk of cable overheating, equipment damage and unplanned downtime in critical electrical systems.
The ABB 1SDA067439R1 is suitable for panel builders, electrical contractors and maintenance engineers requiring a compact, standards-compliant MCCB with dependable thermomagnetic protection and enhanced breaking capacity for modern four-pole distribution systems.
| Current | 50 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | Tmax XT |
| Model | XT1S 160 TMD 50-500 4p F F |
| Product ID | 1SDA067439R1 |
| Product type | Moulded case circuit breaker |
| Frame size | XT1 |
| Breaking capacity class | XT1S |
| Rated frame current | 160 A |
| Rated current | 50 A |
| Number of poles | 4 pole |
| Release type | TMD thermomagnetic release |
| Release range | 50-500 A |
| Rated operational voltage | up to 690 V AC |
| Rated insulation voltage | 800 V |
| Rated impulse withstand voltage | 8 kV |
| Breaking capacity | 50 kA at 415 V AC |
| Terminal type | Front terminals |
| Installation type | Fixed |
| Standards | IEC 60947-2 |
| EAN | 8015644013332 |
| Dimensions (H × W × D) | approx. 130 × 101.6 × 70 mm |
| Weight | approx. 1.4 kg |
| HS Code | 85362090 |
| Country of Manufacture | Italy |
The ABB 1SDA067439R1 is used to protect low voltage electrical circuits against overloads and short circuits in switchboards, distribution panels and industrial control systems.
It is an ABB Tmax XT1S moulded case circuit breaker with a fixed four-pole design, front terminals and a TMD thermomagnetic release.
The breaker has a rated current of 50 A within the XT1S 160 frame size.
The 1SDA067439R1 uses a TMD thermomagnetic release, providing thermal overload protection and magnetic short-circuit protection.
The ABB 1SDA067439R1 is part of the XT1S performance class and has a short-circuit breaking capacity of 50 kA at 415 V AC.
ABB Tmax XT moulded case circuit breakers are widely trusted by electrical contractors, panel builders and industrial engineers to deliver reliable circuit protection in modern low voltage power distribution systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...