Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SDA074973R1 ABB XT2H 125 Ekip LSI 100A 3P UL/CSA MCCB
ABB 1SDA074973R1 is an XT2H 125 three-pole fixed moulded case circuit breaker with a 100 A Ekip LSI electronic trip unit, front terminals and long-time, short-time and instantaneous protection for UL/CSA power distribution applications.
£1,042.45
Why Choose the ABB XT2H 125 Ekip LSI 1SDA074973R1 Circuit Breaker?
The ABB XT2H 125 Ekip LSI 1SDA074973R1 is a compact three-pole moulded case circuit breaker (MCCB) designed for demanding low-voltage power distribution applications requiring electronic protection. Part of the ABB SACE Tmax XT2 range, it combines the XT2H 125 frame with a 100 A Ekip LSI electronic trip unit.
The Ekip LSI release provides long-time (L), short-time (S) and instantaneous (I) protection functions, offering more flexible protection and coordination than a conventional fixed thermomagnetic release. This makes the breaker suitable for feeders and distribution circuits where adjustable electronic protection is beneficial.
The 1SDA074973R1 is supplied as a three-pole, fixed circuit breaker with front terminals and is configured for UL/CSA applications. The XT2H high-interruption-performance platform is particularly suited to industrial, commercial and OEM systems where compact dimensions must be combined with dependable protection against high prospective fault currents.
Key Advantages
- High-performance ABB SACE Tmax XT2H moulded case circuit breaker.
- 100 A Ekip LSI electronic trip unit for precise circuit protection.
- Provides long-time, short-time and instantaneous protection functions.
- Three-pole configuration for three-phase power distribution systems.
- Electronic protection supports improved selectivity and coordination compared with basic thermomagnetic protection.
- Fixed mounting with front terminals for straightforward integration into compatible switchboards and equipment.
Key Features
- ABB SACE Tmax XT2H 125 moulded case circuit breaker.
- 100 A rated trip-unit current (In).
- 125 A XT2 frame.
- Three-pole configuration.
- Ekip LSI electronic trip unit.
- L – Long-time protection against overload conditions.
- S – Short-time protection for short-circuit coordination.
- I – Instantaneous protection against high short-circuit currents.
- H high-interruption-performance XT2 configuration.
- Fixed circuit breaker construction.
- Front terminals for main circuit connections.
- Suitable for UL/CSA power distribution applications.
- Compact XT2 construction for space-conscious panel designs.
- Suitable for coordinated industrial and commercial distribution systems.
Electronic LSI Protection for Coordinated Distribution
The Ekip LSI trip unit provides three principal protection functions. Long-time protection responds to sustained overloads, short-time protection provides controlled response to short-circuit currents and supports coordination with downstream protective devices, while instantaneous protection rapidly interrupts severe fault currents. Together, these functions provide a flexible electronic protection system for distribution circuits.
Compared with a basic thermomagnetic trip unit, electronic LSI protection allows the circuit protection characteristics to be more closely coordinated with the electrical installation. Combined with the XT2H high-performance frame, the 1SDA074973R1 is particularly well suited to installations where selective protection, compact construction and high fault-current interruption capability are important design considerations.
Typical Applications
- Industrial low-voltage power distribution systems.
- Commercial electrical distribution switchboards.
- Three-phase feeder protection.
- Main and sub-distribution circuits.
- Industrial machinery and equipment supplies.
- Systems requiring electronic LSI protection and coordination.
- UL/CSA switchboards and control panels.
- OEM electrical equipment and panel-building applications.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| ABB product group | T-Max XT 250 Range |
| ABB order code | 1SDA074973R1 |
| Product type | Moulded case circuit breaker |
| Frame | XT2H 125 |
| Frame size | 125 A |
| Number of poles | 3 |
| Rated trip-unit current (In) | 100 A |
| Trip unit | Ekip LSI electronic release |
| Protection functions | L, S, I |
| Long-time protection | Yes |
| Short-time protection | Yes |
| Instantaneous protection | Yes |
| Ground-fault protection | No integrated G function |
| Short-circuit performance level | H |
| Application | AC power distribution |
| Mounting | Fixed |
| Connection position | Front |
| Operating mechanism | Toggle |
| Protection technology | Electronic |
| UL/CSA configuration | Yes |
| Suitable for | Power distribution circuit protection |
Frequently Asked Questions
What is the ABB 1SDA074973R1?
The ABB 1SDA074973R1 is an XT2H 125 three-pole moulded case circuit breaker with a 100 A Ekip LSI electronic trip unit, fixed mounting and front terminals for UL/CSA applications.
What is the rated current of the ABB XT2H 1SDA074973R1?
The Ekip LSI electronic trip unit is rated at 100 A, while the circuit breaker uses the compact XT2 125 frame.
What does Ekip LSI mean on the ABB XT2H?
Ekip LSI provides long-time (L), short-time (S) and instantaneous (I) protection functions for overload and short-circuit protection.
Does the ABB 1SDA074973R1 include ground-fault protection?
This model is specified with an Ekip LSI trip unit, so its integrated protection functions are long-time, short-time and instantaneous. A ground-fault G protection function is not included in the LSI designation.
How is the ABB 1SDA074973R1 installed?
The circuit breaker is supplied in a fixed configuration with front terminals for integration into compatible low-voltage switchboards, distribution panels and OEM electrical equipment.
Advanced Electronic Circuit Protection from ABB
ABB SACE Tmax XT moulded case circuit breakers combine compact construction, advanced Ekip electronic protection and high short-circuit performance to support reliable and coordinated low-voltage power distribution in industrial, commercial and OEM applications.
