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ABB 1SDA054354R1 Tmax T5H 320 A three-pole fixed moulded case circuit breaker with PR222DS/P-LSIG electronic trip unit and front terminals for industrial power distribution.
£2,910.66
The ABB 1SDA054354R1 is a high-performance Tmax T5H moulded case circuit breaker (MCCB) designed for dependable protection in industrial and commercial low-voltage power distribution systems. As part of the proven ABB SACE Tmax T series, this breaker provides reliable overload, short-circuit and ground fault protection for demanding electrical installations.
Fitted with a PR222DS/P-LSIG solid-state electronic release, the ABB 1SDA054354R1 offers long-time, short-time, instantaneous and ground fault protection functions for accurate system coordination. Its electronic protection helps improve selectivity, reliability and operational safety across complex power distribution networks.
With a 320 A rated current, 400 A frame size, three-pole fixed construction and front terminal connections, this MCCB is ideal for switchboards, distribution panels, feeder protection and OEM electrical assemblies. Its 690 V AC rated operational voltage and high short-circuit performance make it a strong choice for demanding industrial installations.
Moulded case circuit breakers such as the ABB Tmax T5H are essential for protecting low-voltage electrical systems from overloads, short circuits and earth fault conditions. By disconnecting the circuit during abnormal events, the breaker helps protect equipment, cabling and downstream electrical components from damage.
The PR222DS/P-LSIG release provides adjustable electronic protection functions, including ground fault protection, allowing engineers to coordinate protection settings across complex electrical installations. This supports improved selectivity, reduced downtime and safer operation in industrial and commercial power networks.
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| Current | 320 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 70 kA | |
| Trip Unit | Electronic | |
| Manufacturer | ABB | |
| Series | SACE Tmax T5H | |
| Model | T5H 400 PR222DS/P-LSIG In=320 3p F F | |
| Product ID | 1SDA054354R1 | |
| EAN | 8015644554521 | |
| Product type | Moulded case circuit breaker | |
| Rated current | 320 A | |
| Rated uninterrupted current | 400 A | |
| Rated operational voltage | 690 V AC | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 8 kV | |
| Number of poles | 3 | |
| Trip unit | PR222DS/P-LSIG | |
| Release type | Electronic | |
| Rated service short-circuit breaking capacity | 70 kA at 400 / 415 V AC | |
| Rated ultimate short-circuit breaking capacity | 70 kA at 400 / 415 V AC | |
| Rated short-time withstand current | 5 kA for 1 s | |
| Short-circuit performance level | H | |
| Connection type | Front terminals | |
| Mounting type | Fixed | |
| Standards | IEC 60947 | |
| Mechanical durability | 20,000 operating cycles | |
| Electrical durability | 7,000 operating cycles | |
| Dimensions (H × W × D) | approx. 205 × 140 × 103.5 mm | |
| Weight | approx. 5.1 kg |
The ABB 1SDA054354R1 is used to protect industrial and commercial electrical circuits against overloads, short-circuit faults and ground fault conditions.
This breaker has a 320 A rated current and is built on a 400 A frame size.
It is fitted with a PR222DS/P-LSIG electronic trip unit for long-time, short-time, instantaneous and ground fault protection.
The ABB 1SDA054354R1 is a three-pole fixed moulded case circuit breaker.
It is typically installed in industrial switchboards, distribution panels, feeder circuits and OEM electrical control panels.
ABB Tmax moulded case circuit breakers are trusted by panel builders, contractors and industrial engineers worldwide for dependable circuit protection, high breaking performance and long-term reliability in demanding power distribution applications.
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