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ABB XT3N 250 3 pole Normal MCCB Adjustable Thermal/Fixed Magnetic Release In=250A Ii=750A
MPN: 1SDA068257R1
Alt. SKU: XT3N 250 TMG 250-750 3p F F
Special Price
£795.90
£663.25
Regular Price
£1,224.47
Why Choose the Moulded Case Circuit Breaker [1SDA068257R1]
The TMAX XT3N 250 fixed three-pole circuit breaker features front-access terminals and a thermomagnetic release, rated from 250 to 750 A. Designed for reliable protection in industrial and commercial electrical installations, it ensures precise overcurrent and short-circuit response. Its robust construction and compatibility with standard switchgear make it suitable for a wide range of applications requiring consistent performance and safety.
Technical Specification
- Function: Fixed three-pole moulded case circuit breaker with thermomagnetic release (TMG).
- Rated Current (In): 250 A.
- Rated Operational Voltage: 690 V AC, 500 V DC.
- Rated Insulation Voltage (Ui): 800 V.
- Rated Impulse Withstand Voltage (Uimp): 8 kV.
- Contact Configuration: 3 poles, front terminal connection with bolt type terminals.
- Connecting Capacity: Busbar 85 to 192 mm².
- Short-Circuit Breaking Capacity (Ics): Up to 50 kA at 220-240 V AC, varies by voltage.
- Mechanical Durability: 25,000 cycles at 240 cycles/hour.
- Tightening Torque: 8 N·m for main circuit terminals.
Trusted By Customers Worldwide
"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the rated current of the TMAX XT3N circuit breaker?
The rated current of the TMAX XT3N circuit breaker is 250 A.
What is the rated operational voltage for this circuit breaker?
The rated operational voltage is 690 V AC and 500 V DC.
What is the maximum short-circuit breaking capacity?
The short-circuit breaking capacity is up to 50 kA at 220-240 V AC, varying by voltage.
What is the connecting capacity for busbars?
The connecting capacity for busbars is between 85 to 192 mm².
How many mechanical cycles can the circuit breaker endure?
The circuit breaker has a mechanical durability of 25,000 cycles at 240 cycles/hour.
What type of terminals does the TMAX XT3N feature?
The TMAX XT3N features front terminal connections with bolt type terminals.
What is the tightening torque for the main circuit terminals?
The tightening torque for the main circuit terminals is 8 N·m.
| Manufacturer Part Number | 1SDA068257R1 |
|---|---|
| Barcode | 8015644021634 |
| HS Code | 85362090 |
| Country of Manufacture | Italy |
| Manufacturer | ABB |
| Number of Poles | 3 Pole |
| Amperage | 250A |
| Alternative Product SKU | XT3N 250 TMG 250-750 3p F F |
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