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.
1SDA100544R1 ABB XT5H 400 Ekip Dip LIG 400A 4-Pole Moulded Case Circuit Breaker
ABB 1SDA100544R1 XT5H 400 Ekip Dip LIG is a 400 A four-pole fixed moulded-case circuit breaker with front terminals, a 70 kA ultimate breaking capacity at 380–415 V AC and electronic long-time, instantaneous and ground-fault protection for low-voltage AC distribution systems.
£1,739.48
Why Choose the ABB XT5H 400 Ekip Dip LIG 1SDA100544R1 Circuit Breaker?
The ABB 1SDA100544R1 is a high-performance SACE Tmax XT5H moulded-case circuit breaker (MCCB) designed for dependable protection and switching in demanding low-voltage AC power distribution systems. This fixed four-pole circuit breaker features front terminals and an Ekip Dip LIG solid-state electronic trip unit, providing configurable overload, instantaneous short-circuit and ground-fault protection.
As part of the ABB SACE Tmax XT series, the XT5H 400 combines compact construction with high short-circuit interruption capability and electronic protection. The Ekip Dip LIG release provides Long-time (L) overload protection, Instantaneous (I) short-circuit protection and Ground-fault (G) protection, providing a practical protection combination for four-pole distribution systems.
The 1SDA100544R1 has a 400 A rated current and a four-pole configuration. Its XT5H performance level provides an ultimate short-circuit breaking capacity of 70 kA at 380–415 V AC, while the breaker is rated for operation up to 690 V AC, making it suitable for demanding industrial, commercial and infrastructure distribution applications.
Key Advantages
- High-performance ABB SACE Tmax XT5H moulded-case circuit breaker.
- 400 A rated current for high-current low-voltage distribution circuits.
- Ekip Dip LIG electronic trip unit for configurable circuit protection.
- Long-time overload, instantaneous short-circuit and ground-fault protection functions.
- Four-pole configuration for three-phase distribution systems requiring four-pole switching.
- 70 kA ultimate short-circuit breaking capacity at 380–415 V AC.
- Fixed construction with front terminals for straightforward switchboard integration.
Key Features
- ABB SACE Tmax XT5H 400 moulded-case circuit breaker.
- 400 A rated current (In).
- 400 A rated uninterrupted current (Iu).
- Ekip Dip LIG solid-state electronic release.
- Long-time (L) overload protection.
- Instantaneous (I) short-circuit protection.
- Ground-fault (G) protection.
- Four-pole circuit-breaker configuration.
- Fixed mounting design.
- Front terminals for main-circuit connections.
- H short-circuit performance level.
- Rated operational voltage up to 690 V AC.
- Rated insulation voltage of 1000 V.
- Rated impulse withstand voltage of 8 kV.
- Designed to IEC 60947-2.
Advanced LIG Electronic Protection for Power Distribution
The ABB Ekip Dip LIG release combines three important electronic protection functions. Long-time protection responds to sustained overload conditions, Instantaneous protection provides rapid operation during severe short-circuit faults, and Ground-fault protection provides additional protection against earth-fault conditions within the electrical distribution system.
The LIG configuration is particularly useful where overload, instantaneous short-circuit and ground-fault protection are required without a dedicated short-time protection function. Combined with the XT5H platform's 70 kA Icu at 380–415 V AC, the 1SDA100544R1 provides a robust solution for high-fault-level four-pole power distribution applications.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main and sub-distribution switchboards.
- Transformer and installation protection.
- Four-pole feeder and distribution protection.
- Systems requiring electronic ground-fault protection.
- Manufacturing and process installations.
- Commercial building electrical distribution.
- Infrastructure and utility power distribution systems.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| Frame size | XT5 |
| Order code | 1SDA100544R1 |
| Alternate catalogue number | XT5HE440ACFF000XXX |
| Product type | Moulded-case circuit breaker (MCCB) |
| Rated current (In) | 400 A |
| Rated uninterrupted current (Iu) | 400 A |
| Number of poles | 4 |
| Trip unit | Ekip Dip LIG |
| Release type | Electronic (EL) |
| Protection functions | Long-time (L), Instantaneous (I) and Ground-fault (G) |
| Ultimate short-circuit breaking capacity (Icu) at 220–240 V AC | 100 kA |
| Ultimate short-circuit breaking capacity (Icu) at 380–415 V AC | 70 kA |
| Ultimate short-circuit breaking capacity (Icu) at 440 V AC | 65 kA |
| Ultimate short-circuit breaking capacity (Icu) at 500–525 V AC | 50 kA |
| Ultimate short-circuit breaking capacity (Icu) at 690 V AC | 40 kA |
| Rated short-time withstand current (Icw) | 5 kA |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Short-circuit performance level | H |
| Current type | AC |
| Mounting type | Fixed |
| Terminal position | Front |
| Electrical durability | 7000 cycles |
| Mechanical durability | 20000 cycles |
| Power loss | 19 W |
| Standard | IEC 60947-2 |
| Dimensions (W × H × D) | 186 × 205 × 103.5 mm |
| Net weight | 6.4 kg |
| GTIN / EAN | 8056221006200 |
Frequently Asked Questions
What is the ABB 1SDA100544R1 used for?
The ABB 1SDA100544R1 is a 400 A four-pole moulded-case circuit breaker designed for low-voltage power distribution and installation protection, with electronic overload, instantaneous short-circuit and ground-fault protection.
What is the rated current of the ABB XT5H 400 Ekip Dip LIG?
The 1SDA100544R1 has a rated current and rated uninterrupted current of 400 A.
What does LIG protection mean?
LIG identifies Long-time (L), Instantaneous (I) and Ground-fault (G) protection. These functions provide electronic protection against sustained overloads, severe short circuits and earth-fault conditions.
How many poles does the ABB 1SDA100544R1 have?
The 1SDA100544R1 is a four-pole circuit breaker supplied in a fixed configuration with front terminals.
What is the breaking capacity of the ABB XT5H 400?
This XT5H configuration provides an ultimate short-circuit breaking capacity (Icu) of 100 kA at 220–240 V AC, 70 kA at 380–415 V AC, 65 kA at 440 V AC, 50 kA at 500–525 V AC and 40 kA at 690 V AC.
Trusted ABB Circuit Protection Technology
ABB SACE Tmax XT moulded-case circuit breakers combine dependable switching, configurable electronic protection and high short-circuit interruption performance for demanding industrial, commercial and infrastructure low-voltage power distribution applications.
