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1SDA068173R1 ABB XT4N 250 Breaking Part 3-Pole Fixed Front Terminals
ABB 1SDA068173R1 is an XT4N 250 three-pole fixed MCCB breaking part with front terminals, a 250 A rated uninterrupted current and 36 kA ultimate breaking capacity at 415 V AC for use with compatible ABB XT4 trip units.
£320.09
Why Choose the ABB XT4N 250 Breaking Part 3-Pole?
The ABB XT4N 250 BREAKING PART 3p F F, order code 1SDA068173R1, is a three-pole breaking part for ABB SACE Tmax XT4 moulded case circuit breakers. As part of the ABB Tmax XT range, it provides the switching and fault-interruption section required when configuring an XT4 circuit breaker with a compatible separately selected protection trip unit.
The XT4N 250 is designed for dependable low-voltage power distribution, providing an ultimate short-circuit breaking capacity of 36 kA at 415 V AC. Its compact XT4 frame supports a rated uninterrupted current of 250 A, making this breaking part suitable for industrial switchboards, commercial distribution systems, machinery and other applications requiring reliable circuit interruption.
The 1SDA068173R1 is supplied in a fixed three-pole configuration with front terminals. It has a rated operational voltage of up to 690 V AC and is designed to be combined with a compatible ABB XT4 trip unit, allowing the protection release to be selected according to the current rating and protection functions required by the installation.
Key Advantages
- Compact ABB Tmax XT4N 250 breaking part for configurable MCCB assemblies.
- 250 A rated uninterrupted current for industrial and commercial distribution systems.
- 36 kA ultimate breaking capacity at 415 V AC.
- Three-pole configuration for three-phase electrical systems.
- Fixed mounting with front terminals for straightforward switchboard installation.
- Rated for operation at up to 690 V AC.
- Designed for combination with compatible ABB XT4 trip units to create an application-specific MCCB.
Key Features
- ABB SACE Tmax XT4 series.
- XT4N 250 breaking part.
- 250 A rated uninterrupted current.
- 3-pole configuration.
- N short-circuit performance level.
- 36 kA ultimate breaking capacity at 380–440 V AC.
- 36 kA service breaking capacity at 380–440 V AC.
- Rated operational voltage up to 690 V AC.
- Rated insulation voltage of 1000 V.
- Rated impulse withstand voltage of 8 kV.
- Fixed installation with front terminals.
- Designed for use with a separately selected compatible XT4 trip unit.
Reliable Breaking Performance for Configurable Circuit Protection
The ABB XT4N 250 breaking part forms the switching and fault-interruption section of a configurable Tmax XT4 moulded case circuit breaker. By combining the breaking part with a compatible protection trip unit, engineers can configure the circuit breaker characteristics required for feeders, distribution circuits, machinery and other low-voltage electrical applications.
The N-performance XT4 breaking part provides an ultimate breaking capacity of 36 kA at 415 V AC, with the service breaking capacity equal to the ultimate breaking capacity at this voltage. Its 250 A frame rating, three-pole construction and fixed front-terminal arrangement make the 1SDA068173R1 a versatile platform for industrial and commercial switchboard assemblies.
Typical Applications
- Industrial low-voltage distribution boards.
- Main and sub-distribution switchboards.
- Three-phase electrical distribution systems.
- Electrical feeder and cable protection assemblies.
- Industrial machinery and automation power distribution.
- Commercial building electrical systems.
- Generator and power-distribution applications.
- OEM switchgear and control-panel assemblies.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| Product group | T-Max XT 250 Range |
| Frame | XT4N 250 |
| Order code | 1SDA068173R1 |
| EAN | 8015644696184 |
| Product type | MCCB breaking part |
| Rated uninterrupted current (Iu) | 250 A |
| Number of poles | 3 |
| Rated operational voltage (Ue) | 690 V AC / 500 V DC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Rated frequency | 50 / 60 Hz |
| Ultimate breaking capacity (Icu) at 380–440 V AC | 36 kA |
| Service breaking capacity (Ics) at 380–440 V AC | 36 kA |
| Service breaking capacity (Ics) at 500 V AC | 30 kA |
| Service breaking capacity (Ics) at 525 V AC | 20 kA |
| Service breaking capacity (Ics) at 690 V AC | 10 kA |
| Short-circuit performance level | N |
| Selectivity category | A |
| Mounting version | Fixed |
| Terminal position | Front |
| Dimensions (H × W × D) | approx. 160 × 105 × 82.5 mm |
| Weight | approx. 1.8 kg |
| Country of origin | Italy |
| Standard | IEC 60947-2 |
Frequently Asked Questions
What is the ABB 1SDA068173R1?
The ABB 1SDA068173R1 is a three-pole XT4N 250 breaking part designed to be combined with a compatible ABB XT4 trip unit to create a complete moulded case circuit breaker.
What is the breaking capacity of the ABB XT4N 250 breaking part?
The XT4N 250 provides an ultimate short-circuit breaking capacity of 36 kA at 415 V AC.
What is the current rating of the ABB 1SDA068173R1?
The XT4N 250 breaking part has a rated uninterrupted current of 250 A.
Does the ABB 1SDA068173R1 include a trip unit?
No. The 1SDA068173R1 is the XT4N 250 breaking part and is designed to be combined with a compatible ABB XT4 trip unit selected according to the required current rating and protection functions.
How is the ABB XT4N 250 1SDA068173R1 installed?
The 1SDA068173R1 is supplied in a fixed three-pole configuration with front terminals for installation within electrical switchboards, distribution panels and industrial power systems.
Trusted ABB Technology for Low-Voltage Circuit Protection
ABB SACE Tmax XT breaking parts provide a flexible platform for configurable moulded case circuit breakers, combining compact dimensions, dependable switching performance and proven short-circuit interruption capability for industrial and commercial electrical distribution systems.
