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ABB XT1B 160 4 pole Basic MCCB Fixed Thermal/Adjustable Magnetic Release In=125A Ii=1250A

MPN: 1SDA066819R1

Alt. SKU: XT1B 160 TMD 125-1250 4p F F InN=50%

Special Price £409.67 £341.39 Regular Price £630.26

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Why Choose the Moulded Case Circuit Breaker [1SDA066819R1]

The TMAX XT1B 160 fixed four-pole circuit breaker features front terminals and a thermomagnetic release (TMD R) with adjustable current ratings from 125 to 1250 A. It provides reliable protection with a neutral pole rated at 50% of the phase current, ensuring compatibility with a wide range of three-phase electrical installations. Designed for robust performance and ease of installation, this breaker is suitable for demanding industrial and commercial applications.

Technical Specification

  • Function: Fixed four-pole thermomagnetic moulded case circuit breaker with front terminals.
  • Rated Operational Voltage: 690 V AC / 500 V DC.
  • Rated Current (I n ): 125 A (setting range 87.5–125 A, overload release TMD).
  • Number of Poles: 4P with neutral at 50% of phase current.
  • Rated Impulse Withstand Voltage (U imp ): 8 kV.
  • Rated Insulation Voltage (U i ): 800 V.
  • Short-Circuit Breaking Capacity (I cs ): Up to 25 kA at 230 V AC, 18 kA at 415 V AC, 18 kA at 500 V DC.
  • Terminal Type and Size: Front bolt terminals, busbar connection 45.5–80 mm², tightening torque 6 N·m.
  • Mechanical Durability: 25,000 cycles.
  • Electrical Durability: 8,000 cycles at 120 cycles/hour.

Trusted By Customers Worldwide

"Specified by UK panel builders for dependable control." Controls Engineer, UK

Frequently Asked Questions

What is the rated operational voltage of the C.BREAKER TMAX XT1B?
The rated operational voltage is 690 V AC / 500 V DC.
What is the rated current range for this circuit breaker?
The rated current (I n) is 125 A, with a setting range of 87.5–125 A.
How many poles does the TMAX XT1B circuit breaker have?
It has four poles, with the neutral at 50% of the phase current.
What is the short-circuit breaking capacity of this breaker?
The short-circuit breaking capacity is up to 25 kA at 230 V AC, 18 kA at 415 V AC, and 18 kA at 500 V DC.
What type of terminals does the TMAX XT1B use?
It features front bolt terminals with a busbar connection size of 45.5–80 mm².
What is the mechanical durability of this circuit breaker?
The mechanical durability is rated for 25,000 cycles.
What standards and approvals does the TMAX XT1B conform to?
See the manufacturer's data sheet for standards and approvals.
More Information
Manufacturer Part Number 1SDA066819R1
Barcode 8015644007263
HS Code 85362090
Country of Manufacture Italy
Manufacturer ABB
Number of Poles 4 Pole
Amperage 125A
Alternative Product SKU XT1B 160 TMD 125-1250 4p F F InN=50%
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