ABB 1SDA067421R1 SACE Tmax XT1N 160 four-pole moulded case circuit breaker with thermal magnetic TMD 50-500 A release and front terminals for low voltage distribution protection.
£412.93
The ABB 1SDA067421R1 is a compact and dependable SACE Tmax XT1N 160 moulded case circuit breaker (MCCB) designed to protect low voltage electrical distribution systems against overloads and short circuits. Featuring a thermal magnetic TMD release, this four-pole circuit breaker provides reliable protection for industrial switchboards, commercial distribution panels and OEM machinery control systems.
As part of ABB's proven SACE Tmax XT series, the XT1N 160 range combines compact dimensions with strong breaking performance, making it suitable for modern low voltage switchgear assemblies. Its fixed mounting format and front terminal connections support straightforward installation and long-term operational reliability.
With a 50 A rated current, 160 A frame size and four-pole configuration, the ABB 1SDA067421R1 is ideal for protecting three-phase distribution circuits where neutral isolation and dependable fault protection are required.
Moulded case circuit breakers such as the ABB XT1N 160 provide essential protection by disconnecting electrical circuits during overload or short circuit conditions. The thermal magnetic trip unit combines thermal protection for sustained overloads with magnetic protection for high fault currents, helping improve electrical safety and reduce equipment damage.
The ABB 1SDA067421R1 is designed for switchboards, distribution panels and machinery control systems where compact installation and dependable circuit protection are required. Its four-pole construction makes it suitable for three-phase systems where neutral switching or isolation may be needed.
| Current | 50 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | SACE Tmax XT |
| Model | XT1N 160 TMD 50-500 4p F F |
| SKU | 1SDA067421R1 |
| EAN | 8015644013158 |
| Product type | Moulded Case Circuit Breaker (MCCB) |
| Frame size | XT1N 160 |
| Rated current | 50 A |
| Rated uninterrupted current | 160 A |
| Number of poles | 4 |
| Trip unit | Thermal Magnetic TMD |
| Instantaneous short-circuit setting | 500 A |
| Rated operational voltage | Up to 690 V AC |
| Rated insulation voltage | 800 V |
| Rated impulse withstand voltage | 8 kV |
| Frequency | 50 / 60 Hz |
| Breaking capacity | 36 kA at 415 V AC |
| Mounting type | Fixed |
| Terminal type | Front terminals |
| Standards | IEC 60947-2 |
| Dimensions (H × W × D) | approx. 130 × 101.6 × 70 mm |
| Weight | approx. 1.38 kg |
| HS Code | 85362090 |
| Country of Manufacture | Italy |
The ABB 1SDA067421R1 is used to protect low voltage electrical distribution circuits against overloads and short circuits.
This moulded case circuit breaker has a 50 A rated current.
The breaker has a four-pole configuration, making it suitable for three-phase systems where neutral switching or isolation may be required.
The ABB 1SDA067421R1 is fitted with a thermal magnetic TMD trip unit for overload and short circuit protection.
The XT1N version provides a breaking capacity of up to 36 kA at 415 V AC.
ABB SACE Tmax XT moulded case circuit breakers are trusted by panel builders, electrical contractors and industrial engineers for dependable protection, compact installation and long service life in demanding low voltage applications.
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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...