ABB XT1B 160 4 pole Basic MCCB Fixed Thermal/Adjustable Magnetic Release In=25A Ii=450A

ABB XT1B 160 4 pole Basic MCCB Fixed Thermal/Adjustable Magnetic Release In=25A Ii=450A

ABB 1SDA066812R1 XT1B 160 TMD 25-450 4P F F moulded case circuit breaker with 25 A rated current, four poles, thermomagnetic TMD release and fixed front terminals for low voltage power distribution.

SKU: 1SDA066812R1Alt SKU: XT1B 160 TMD 25-450 4p F FMPN: 1SDA066812R1
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List Price £372.62 ex VAT
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Why Choose the ABB XT1B 160 TMD 25-450 4P F F Moulded Case Circuit Breaker?

The ABB 1SDA066812R1 XT1B 160 TMD 25-450 4P F F is a compact and reliable moulded case circuit breaker (MCCB) from the ABB SACE Tmax XT series. Designed for dependable circuit protection in commercial and industrial power distribution systems, it helps protect electrical installations against overloads and short circuits.

This MCCB features an adjustable thermomagnetic TMD trip unit, providing effective thermal overload protection and magnetic short circuit protection. Its fixed four-pole construction with front terminals allows straightforward installation into switchboards, control panels and OEM electrical assemblies.

With a 25 A rated current, four-pole configuration and 18 kA breaking capacity at 415 V AC, the ABB XT1B 160 TMD 25-450 4P F F is suitable for low voltage electrical distribution where compact size, proven protection and ABB build quality are essential.

Key Advantages

  • Compact ABB SACE Tmax XT moulded case circuit breaker.
  • 25 A rated current for reliable circuit protection.
  • Four-pole configuration for complete phase and neutral protection.
  • Thermomagnetic TMD trip unit for overload and short circuit protection.
  • 18 kA breaking capacity at 415 V AC.
  • Fixed design with front terminal connections.
  • Suitable for industrial, commercial and OEM power distribution systems.
  • Designed for use in compact electrical panels and switchgear assemblies.

Key Features

  • ABB SACE Tmax XT series.
  • Model: XT1B 160 TMD 25-450 4P F F.
  • Product ID: 1SDA066812R1.
  • 25 A rated current.
  • 160 A frame size.
  • Four-pole MCCB construction.
  • Adjustable thermomagnetic TMD release.
  • Front terminal connection type.
  • Fixed mounting version for panel installation.
  • Suitable for low voltage AC power distribution applications.

Reliable Protection for Low Voltage Electrical Systems

The ABB XT1B range is designed to provide dependable protection for low voltage electrical circuits. By combining overload and short circuit protection within a compact MCCB body, it helps protect cables, equipment and downstream devices from damaging fault conditions.

The thermomagnetic release is well suited to standard distribution and feeder applications, while the fixed front terminal layout makes the breaker easy to integrate into panel boards, switchgear and industrial control systems. ABB Tmax XT breakers are widely used where long service life and consistent protection performance are required.

Typical Applications

  • Industrial power distribution systems.
  • Commercial electrical installations.
  • Electrical switchboards and panel boards.
  • OEM machinery and control panels.
  • Feeder circuit protection.
  • Manufacturing and process equipment.
  • Infrastructure and building services systems.

Technical Specifications

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Mounting Type Fixed
Application Power distribution
Current 25 A
Phase Three Phase
Poles 4-pole
Device Type MCCB
Breaking Capacity 18 kA
Trip Unit Thermal-magnetic
Manufacturer ABB
Series SACE Tmax XT
Model XT1B 160 TMD 25-450 4P F F
Product code 1SDA066812R1
Product type Moulded Case Circuit Breaker (MCCB)
Frame size XT1 160
Rated current (In) 25 A
Rated uninterrupted current (Iu) 160 A
Number of poles 4
Trip unit Thermomagnetic TMD
Thermal setting range 17.5 to 25 A
Instantaneous magnetic setting 450 A
Rated operational voltage Up to 690 V AC
Breaking capacity (Icu) 18 kA at 415 V AC
Terminal type Front terminals
Mounting type Fixed
Frequency 50 / 60 Hz
Standards IEC 60947-2
Protection rating IP20 device rating
Dimensions (H × W × D) approx. 130 × 101.6 × 70 mm
Weight approx. 1.35 kg
HS Code 85362090
Country of Manufacture Italy

Frequently Asked Questions

What is the ABB 1SDA066812R1 used for?

It is used to protect low voltage electrical circuits against overloads and short circuits in industrial, commercial and OEM power distribution systems.

What is the rated current of this MCCB?

The ABB 1SDA066812R1 has a 25 A rated current and is built on the XT1 160 A frame size.

How many poles does this circuit breaker have?

This model has a four-pole configuration, making it suitable for applications requiring phase and neutral protection.

What type of trip unit is included?

The breaker is fitted with an adjustable thermomagnetic TMD trip unit for overload and short circuit protection.

What terminals does this breaker use?

The XT1B 160 TMD 25-450 4P F F is a fixed version with front terminals for standard panel and switchboard installation.

Trusted by Electrical Professionals Worldwide

ABB SACE Tmax XT moulded case circuit breakers are trusted by panel builders, electrical contractors and industrial engineers for reliable circuit protection, compact installation and proven performance in demanding low voltage systems.