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1sda054120r1 t4n 320 pr222ds/p-lsig in=320 3 pole abb mccb
ABB 1SDA054120R1 Tmax T4N 320 moulded case circuit breaker with PR222DS/P-LSIG electronic trip unit, 320 A rated current, three-pole fixed configuration and front terminals for low voltage power distribution.
£2,457.32
Why Choose the ABB 1SDA054120R1 Tmax T4N 320 MCCB?
The ABB 1SDA054120R1 is a high-performance Tmax T4N moulded case circuit breaker (MCCB) designed to provide dependable protection for low voltage power distribution systems. As part of the proven ABB SACE Tmax T series, this fixed three-pole breaker is engineered for industrial, commercial and OEM applications where reliable circuit protection and precise fault response are essential.
This MCCB is fitted with a PR222DS/P-LSIG electronic trip unit, providing adjustable long-time, short-time, instantaneous and earth fault protection. Its solid-state release helps improve selectivity and protection coordination, making it suitable for demanding electrical networks where uptime and system safety are critical.
With a 320 A rated current, three-pole fixed configuration and front terminal connections, the ABB 1SDA054120R1 is ideal for switchboards, distribution panels, motor control centres and industrial power systems requiring robust, high-performance circuit protection.
Key Advantages
- Reliable ABB Tmax T4N moulded case circuit breaker.
- 320 A rated current for demanding low voltage applications.
- PR222DS/P-LSIG electronic trip unit for advanced adjustable protection.
- Three-pole fixed design with front terminal connections.
- Includes long-time, short-time, instantaneous and earth fault protection.
- Suitable for panel builders, OEMs and commercial electrical installations.
Key Features
- ABB SACE Tmax T series.
- T4N 320 MCCB frame.
- 320 A rated uninterrupted current.
- 3-pole fixed circuit breaker.
- PR222DS/P-LSIG solid-state electronic release.
- Long-time, short-time, instantaneous and earth fault protection functions.
- Front terminal connections.
- Rated operational voltage up to 690 V AC.
Advanced Protection for Low Voltage Electrical Systems
Moulded case circuit breakers such as the ABB Tmax T4N protect electrical installations by disconnecting circuits during overload, short-circuit and earth fault conditions. The PR222DS/P-LSIG electronic release allows protection settings to be matched to the application, helping improve selectivity across distribution networks.
The ABB 1SDA054120R1 combines robust construction, compact dimensions and proven ABB engineering, making it a practical choice for switchgear assemblies, power distribution panels and industrial installations requiring dependable circuit protection.
Typical Applications
- Industrial switchboards and panel boards.
- Commercial electrical distribution systems.
- Motor control centres.
- Feeder and transformer protection.
- Generator and backup power systems.
- OEM machinery and automation panels.
- Infrastructure and utilities installations.
Technical Specifications
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| Current | 320 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 36 kA | |
| Trip Unit | Electronic | |
| Manufacturer | ABB | |
| Series | SACE Tmax T | |
| Model | T4N 320 | |
| Part number | 1SDA054120R1 | |
| Product type | Moulded case circuit breaker (MCCB) | |
| Rated current | 320 A | |
| Rated uninterrupted current (Iu) | 320 A | |
| Rated operational voltage | 690 V AC | |
| Rated insulation voltage (Ui) | 1000 V | |
| Rated impulse withstand voltage (Uimp) | 8 kV | |
| Number of poles | 3 | |
| Mounting type | Fixed | |
| Terminal type | Front terminals | |
| Trip unit | PR222DS/P-LSIG electronic release | |
| Breaking capacity | 36 kA at 415 V AC | |
| Dimensions (H × W × D) | 205 × 105 × 103.5 mm | |
| Weight | approx. 3.5 kg | |
| EAN | 8015644552190 | |
| Standards | IEC 60947 |
Frequently Asked Questions
What is the ABB 1SDA054120R1 used for?
The ABB 1SDA054120R1 is used to protect low voltage electrical circuits in industrial, commercial and OEM power distribution systems.
What is the rated current of this MCCB?
This circuit breaker has a rated current of 320 A.
What trip unit is fitted to the ABB 1SDA054120R1?
It is fitted with a PR222DS/P-LSIG electronic trip unit, providing long-time, short-time, instantaneous and earth fault protection functions.
How many poles does this breaker have?
The ABB 1SDA054120R1 is a 3-pole fixed moulded case circuit breaker.
Where is this MCCB typically installed?
It is commonly installed in switchboards, distribution panels, motor control centres and industrial electrical systems requiring reliable circuit protection.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax moulded case circuit breakers are widely trusted by panel builders, electrical contractors and industrial engineers for dependable low voltage circuit protection, robust performance and reliable operation in demanding power distribution applications.
