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1SDA062940R1 ABB T7L 1250 PR331/P LSIG In=1250A 4p F F Moulded Case Circuit Breaker
ABB T7L 1250 PR331/P LSIG circuit breaker, a 1250 A four pole Tmax T moulded case circuit breaker designed for reliable low voltage electrical distribution protection.
£10,970.96
Why Choose the ABB T7L 1250 PR331/P LSIG In=1250A 4p F F Moulded Case Circuit Breaker?
The ABB T7L 1250 PR331/P LSIG In=1250A 4p F F is a high-performance moulded case circuit breaker (MCCB) designed for reliable protection and switching in demanding low-voltage electrical distribution systems. Part of the advanced ABB SACE Tmax T7 series, this four-pole fixed circuit breaker combines robust construction with an electronic PR331/P-LSIG trip unit for comprehensive protection against overload, short-circuit and earth fault conditions. :chatgpt-content-reference{index="0"}
Designed for industrial and infrastructure power applications, the T7L 1250 provides accurate protection adjustment and dependable interruption performance. Its fixed front terminal configuration and lever operating mechanism support straightforward integration into main switchboards, feeder assemblies and electrical distribution panels. :chatgpt-content-reference{index="1"}
With a rated current of 1250 A, a four-pole configuration and a rated operational voltage of 690 V AC, the ABB T7L 1250 PR331/P LSIG is suitable for high-capacity electrical systems requiring advanced protection coordination and reliable circuit isolation. :chatgpt-content-reference{index="2"}
Key Advantages
- 1250 A rated current capacity for high-power low-voltage distribution systems.
- ABB Tmax T7 MCCB technology providing dependable industrial circuit protection.
- PR331/P-LSIG electronic trip unit with long-time, short-time, instantaneous and earth fault protection functions.
- Four-pole fixed front terminal design for flexible switchboard installation.
- High short-circuit breaking capability for demanding electrical environments.
- Reliable mechanical operation with durable ABB Tmax construction.
Key Features
- ABB SACE Tmax T7 series moulded case circuit breaker.
- 1250 A rated uninterrupted current.
- Four-pole (4P) configuration.
- PR331/P-LSIG electronic release.
- Long-time (L), short-time (S), instantaneous (I) and ground fault (G) protection functions.
- Fixed mounting with front terminals.
- Lever operating mechanism.
- Designed for IEC low-voltage power distribution applications.
Reliable Protection for Industrial Power Distribution
Moulded case circuit breakers such as the ABB T7L 1250 protect electrical installations by monitoring current levels and disconnecting circuits during abnormal conditions. This helps safeguard cables, switchgear and connected equipment from overloads and short circuits.
The Tmax T7 platform combines compact MCCB construction with advanced electronic protection technology. The PR331/P-LSIG release enables accurate protection settings and supports selective coordination within modern electrical distribution systems.
Typical Applications
- Industrial power distribution switchboards.
- Main incomer and feeder protection systems.
- Manufacturing plants and production facilities.
- Motor control centres and electrical panels.
- Transformer and generator protection applications.
- Commercial and infrastructure electrical systems.
Technical Specifications
| Series | SACE Tmax T7 |
|---|---|
| Order code | 1SDA062940R1 |
| Product type | Moulded case circuit breaker |
| Rated current (In) | 1250 A |
| Number of poles | 4P |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Trip unit | PR331/P-LSIG electronic release |
| Protection functions | Long-time, short-time, instantaneous and earth fault protection |
| Mounting version | Fixed |
| Terminal connection | Front terminals |
| Rated ultimate short-circuit breaking capacity (Icu at 400 V AC) | 120 kA |
| Rated service short-circuit breaking capacity (Ics at 400 V AC) | 120 kA |
| Short-time withstand current (Icw) | 20 kA for 1 s |
| Dimensions (W × H × D) | approx. 280 × 268 × 154 mm |
| Weight | approx. 12.5 kg |
| Mechanical durability | 10,000 operations |
| Electrical durability | 2,000 operations |
Frequently Asked Questions
What is the ABB T7L 1250 PR331/P LSIG used for?
This ABB Tmax T7 circuit breaker is used for protecting and switching high-capacity low-voltage electrical distribution systems.
What is the rated current of this circuit breaker?
The ABB T7L 1250 PR331/P LSIG has a rated current of 1250 A.
How many poles does the ABB T7L 1250 have?
The circuit breaker has a four-pole (4P) configuration for three-phase electrical distribution systems.
Which trip unit is installed on this breaker?
The breaker is fitted with the PR331/P-LSIG electronic trip unit, providing long-time, short-time, instantaneous and earth fault protection functions.
Where is the ABB T7L 1250 typically installed?
The T7L 1250 is typically installed in industrial switchboards, distribution panels and high-capacity electrical power systems.
Trusted by Electrical Engineers Worldwide
ABB Tmax T circuit breakers are widely used in industrial and commercial power systems to provide reliable protection, efficient switching and dependable electrical distribution management.
