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1sda054488r1 t5n 630 tma 630-6300 4 pole abb mccb
ABB 1SDA054488R1 T5N 630 TMA 630-6300 four-pole fixed moulded case circuit breaker with front terminals, thermal-magnetic release and fully rated neutral for industrial power distribution.
Why Choose the ABB 1SDA054488R1 T5N 630 TMA 630-6300 Circuit Breaker?
The ABB 1SDA054488R1 is a heavy-duty SACE Tmax T5N moulded case circuit breaker (MCCB) designed to provide dependable protection for industrial and commercial low-voltage power distribution systems. As part of the proven ABB Tmax T series, this fixed four-pole breaker delivers reliable overload and short-circuit protection in demanding electrical installations.
This model features a thermal-magnetic TMA trip unit with a 630 A rated current and adjustable instantaneous magnetic protection from 3150 to 6300 A. Its four-pole configuration, front terminal connections and fully rated neutral make it suitable for three-phase distribution systems where neutral switching and protection are required.
With a robust T5N 630 frame size, fixed mounting arrangement and rated operational voltage up to 690 V AC, the ABB 1SDA054488R1 is ideal for main distribution boards, industrial switchgear, building services and infrastructure applications requiring safe and reliable circuit protection.
Key Advantages
- High-performance ABB SACE Tmax T5N moulded case circuit breaker.
- 630 A rated current for demanding power distribution applications.
- Thermal-magnetic TMA release for overload and short-circuit protection.
- Four-pole fixed configuration with fully rated neutral.
- Front terminal connections for straightforward switchboard installation.
- Adjustable instantaneous magnetic protection from 3150 to 6300 A.
Key Features
- ABB SACE Tmax T series.
- T5N 630 frame size.
- 630 A rated current.
- Thermal-magnetic TMA trip unit.
- 4-pole fixed circuit breaker.
- Fully rated neutral (100% In).
- Front terminal connection type.
- Designed for industrial and commercial low-voltage distribution.
Reliable Protection for High-Current Distribution Systems
Moulded case circuit breakers such as the ABB 1SDA054488R1 are designed to protect electrical circuits against overload and short-circuit conditions. The thermal element responds to sustained overloads, while the magnetic element provides rapid disconnection during high fault-current events.
The four-pole construction and fully rated neutral make this breaker particularly suitable for low-voltage distribution systems where complete isolation and neutral protection are required. Its compact Tmax T5 design allows efficient integration into industrial switchboards and electrical panels.
Typical Applications
- Industrial switchboards and power distribution panels.
- Main and sub-main distribution systems.
- Commercial building electrical installations.
- Manufacturing and process facilities.
- Infrastructure and utility installations.
- Three-phase systems requiring neutral protection and isolation.
Technical Specifications
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| Current | 630 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 36 kA | |
| Trip Unit | Thermal-magnetic | |
| Manufacturer | ABB | |
| Series | SACE Tmax T | |
| Model | T5N 630 TMA 630-6300 4p F F InN=100%In | |
| Product ID | 1SDA054488R1 | |
| Product type | Moulded case circuit breaker | |
| Frame size | T5N 630 | |
| Rated uninterrupted current (Iu) | 630 A | |
| Rated current (In) | 630 A | |
| Trip unit | Thermal-magnetic (TMA) | |
| Instantaneous magnetic setting | 3150 to 6300 A | |
| Number of poles | 4P | |
| Neutral rating | Fully rated neutral, InN = 100% In | |
| Mounting type | Fixed | |
| Terminal connection | Front terminals | |
| Rated operational voltage | Up to 690 V AC / 750 V DC | |
| Rated insulation voltage (Ui) | 1000 V | |
| Rated impulse withstand voltage (Uimp) | 8 kV | |
| Rated ultimate breaking capacity (Icu) | 36 kA at 400 V AC | |
| Protection standard | IEC 60947-2 | |
| Dimensions (H × W × D) | approx. 205 × 186 × 103.5 mm | |
| Weight | approx. 5.8 kg |
Frequently Asked Questions
What is the ABB 1SDA054488R1 used for?
The ABB 1SDA054488R1 is used to protect industrial and commercial low-voltage electrical systems against overload and short-circuit faults.
What is the rated current of this circuit breaker?
This model has a 630 A rated current within the ABB Tmax T5N 630 frame size.
How many poles does the ABB 1SDA054488R1 have?
The breaker has a four-pole configuration with a fully rated neutral, making it suitable for three-phase systems requiring neutral switching and protection.
What type of trip unit is fitted?
It uses a thermal-magnetic TMA trip unit, providing overload protection and adjustable instantaneous short-circuit protection.
Where is this breaker typically installed?
It is commonly installed in industrial switchboards, main distribution panels, commercial electrical systems and infrastructure power distribution applications.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax moulded case circuit breakers are trusted by panel builders, electrical contractors and industrial engineers for dependable protection, robust construction and long-term performance in low-voltage power distribution systems.
