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1sda062899r1 t7h 1250 pr232/p lsi in=1250a 3 pole abb mccb
ABB 1SDA062899R1 Tmax T7H 1250 moulded case circuit breaker with PR231/P-LSIG electronic release, 1250 A rated current, three poles, fixed front terminals and rated operational voltage up to 690 V AC.
£7,098.23
Why Choose the ABB 1SDA062899R1 Tmax T7H Moulded Case Circuit Breaker?
The ABB 1SDA062899R1 is a high-capacity Tmax T7H moulded case circuit breaker (MCCB) designed for reliable protection in demanding industrial power distribution, commercial electrical installations and low voltage networks. As part of the ABB SACE Tmax T series, it provides robust switching performance, dependable fault protection and long-term reliability for critical electrical systems.
This breaker is supplied as a fixed three-pole MCCB with front terminals, a lever operating mechanism and a PR231/P-LSIG electronic release. The LSIG protection functions provide long-time, short-time, instantaneous and ground fault protection, making the unit suitable for installations requiring accurate fault detection, selectivity and enhanced electrical safety.
With a rated current of 1250 A and rated operational voltage up to 690 V AC, the ABB 1SDA062899R1 is ideal for main distribution boards, transformer protection, generator protection, feeder circuits and industrial switchgear. Its high short-circuit performance level supports dependable operation in demanding power distribution environments.
Key Advantages
- High-capacity ABB Tmax T7H moulded case circuit breaker.
- 1250 A rated current for heavy-duty electrical distribution.
- Three-pole configuration for three-phase systems.
- PR231/P-LSIG electronic release with ground fault protection.
- Fixed version with front terminal connections.
- Lever operating mechanism for straightforward manual operation.
- High breaking capacity for demanding low voltage installations.
Key Features
- ABB SACE Tmax T series.
- T7H 1250 frame size.
- 1250 A rated uninterrupted current.
- Three-pole MCCB design.
- PR231/P-LSIG solid-state release.
- Rated operational voltage up to 690 V AC.
- Rated insulation voltage 1000 V.
- Rated impulse withstand voltage 8 kV.
- Fixed circuit breaker with front terminals.
- Suitable for transformer, generator and installation protection.
Reliable Protection for Industrial Power Distribution
Moulded case circuit breakers such as the ABB Tmax T7H protect electrical installations by interrupting overload, short-circuit and earth fault conditions before they can damage equipment or compromise operational safety. The PR231/P-LSIG electronic release supports dependable protection coordination in high-current distribution systems.
The ABB 1SDA062899R1 is suitable for power circuit protection in transformer, generator and installation applications. Its fixed front terminal arrangement supports panel and switchboard installation, while the high breaking capacity helps ensure reliable performance in demanding industrial environments.
Typical Applications
- Main low voltage switchboards.
- Industrial power distribution systems.
- Transformer protection and feeder circuits.
- Generator protection and changeover systems.
- Commercial building electrical distribution.
- Motor control centres and process plant panels.
- Infrastructure, utilities and heavy industrial installations.
Technical Specifications
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| Current | 1250 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCCB | |
| Breaking Capacity | 70 kA | |
| Trip Unit | Electronic | |
| Manufacturer | ABB | |
| Series | SACE Tmax T | |
| Model | T7H 1250 PR231/P LSIG In=1250A 3p F F | |
| Product code | 1SDA062899R1 | |
| EAN | 8015644654481 | |
| Product type | Moulded Case Circuit Breaker | |
| Breaker type | Automatic circuit breaker | |
| Rated current | 1250 A | |
| Rated uninterrupted current | 1250 A | |
| Number of poles | 3P | |
| Release | PR231/P-LSIG | |
| Release type | Electronic | |
| Rated operational voltage | 690 V AC | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 8 kV | |
| Short-circuit performance level | H | |
| Rated ultimate breaking capacity | 70 kA at 415 V AC | |
| Rated service breaking capacity | 70 kA at 415 V AC | |
| Rated short-time withstand current | 20 kA for 1 s | |
| Terminal connection | Fixed front terminals | |
| Operating mechanism | Lever operating mechanism | |
| Electrical durability | 2000 cycles | |
| Mechanical durability | 10000 cycles | |
| Standards | IEC | |
| Product net width | 210 mm | |
| Product net height | 268 mm | |
| Product net depth | 154 mm | |
| Product net weight | approx. 13.6 kg |
Frequently Asked Questions
What is the ABB 1SDA062899R1 used for?
The ABB 1SDA062899R1 is used to protect low voltage electrical distribution systems against overloads, short circuits and ground faults in industrial, commercial and infrastructure applications.
What is the rated current of this MCCB?
This ABB Tmax T7H moulded case circuit breaker has a rated current of 1250 A.
What trip unit is fitted to the ABB 1SDA062899R1?
The breaker is fitted with a PR231/P-LSIG electronic release, providing long-time, short-time, instantaneous and ground fault protection functions.
How many poles does the ABB 1SDA062899R1 have?
The ABB 1SDA062899R1 is a three-pole moulded case circuit breaker suitable for three-phase electrical systems.
What type of terminals does this breaker use?
This model is a fixed circuit breaker supplied with front terminal connections for switchboard and panel installation.
Trusted by Electrical Engineers Worldwide
ABB Tmax moulded case circuit breakers are trusted by panel builders, electrical contractors and industrial engineers for dependable protection, strong breaking performance and long-term reliability in demanding power distribution systems.
