ABB XT1B 160 4 pole Basic MCCB Fixed Thermal/Adjustable Magnetic Release In=50A Ii=500A

ABB XT1B 160 4 pole Basic MCCB Fixed Thermal/Adjustable Magnetic Release In=50A Ii=500A

ABB 1SDA066815R1 XT1B 160 TMD 50-500 4P F F moulded case circuit breaker with 50 A rated current, four poles, thermomagnetic TMD release and fixed front terminals for low voltage power distribution.

SKU: 1SDA066815R1Alt SKU: XT1B 160 TMD 50-500 4p F FMPN: 1SDA066815R1
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List Price £372.62 ex VAT
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Why Choose the ABB XT1B 160 TMD 50-500 4P F F Moulded Case Circuit Breaker?

The ABB 1SDA066815R1 XT1B 160 TMD 50-500 4P F F is a compact and reliable moulded case circuit breaker (MCCB) from the ABB SACE Tmax XT series. Designed for low voltage power distribution, it provides dependable protection against overloads and short circuits in commercial, industrial and OEM electrical installations.

This four-pole MCCB is fitted with an adjustable thermomagnetic TMD trip unit, combining thermal overload protection with magnetic short circuit protection. Its fixed construction with front terminals allows straightforward installation into switchboards, distribution boards and industrial control panel assemblies.

With a 50 A rated current, XT1 160 A frame size and 18 kA breaking capacity at 415 V AC, the ABB XT1B 160 TMD 50-500 4P F F is well suited to feeder protection, machinery supplies and general low voltage electrical distribution systems where proven ABB protection is required.

Key Advantages

  • Compact ABB SACE Tmax XT moulded case circuit breaker.
  • 50 A rated current for dependable low voltage circuit protection.
  • Four-pole configuration for phase and neutral protection.
  • Thermomagnetic TMD release for overload and short circuit protection.
  • 18 kA breaking capacity at 415 V AC.
  • Fixed MCCB with front terminal connections.
  • Suitable for switchboards, distribution panels and OEM electrical systems.
  • Designed in accordance with IEC 60947-2.

Key Features

  • ABB SACE Tmax XT series.
  • Model: XT1B 160 TMD 50-500 4P F F.
  • Product ID: 1SDA066815R1.
  • 50 A rated current.
  • 160 A frame size.
  • Four-pole MCCB construction.
  • Adjustable thermomagnetic TMD trip unit.
  • Front terminal connection type.
  • Fixed mounting version for panel installation.
  • Suitable for AC and DC low voltage protection applications.

Reliable Protection for Low Voltage Power Distribution

The ABB XT1B range is designed to protect electrical circuits by disconnecting power during overload or short circuit conditions. The thermomagnetic release provides a reliable combination of time-delayed overload protection and fast magnetic fault interruption, helping reduce damage to cables, equipment and downstream components.

Its compact fixed format, four-pole layout and front terminal design make this MCCB suitable for panel builders, electrical contractors and machine manufacturers requiring dependable protection in demanding low voltage installations.

Typical Applications

  • Industrial power distribution systems.
  • Commercial switchboards and distribution panels.
  • OEM machinery and control cabinets.
  • Feeder circuit protection.
  • Manufacturing and process equipment.
  • Building services and infrastructure systems.
  • Low voltage AC and DC electrical protection.

Technical Specifications

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Mounting Type Fixed
Application Power distribution
Current 50 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 50-500 4P F F
Product code 1SDA066815R1
EAN 8015644694524
Product type Moulded Case Circuit Breaker (MCCB)
Frame size XT1 160
Rated current (In) 50 A
Rated uninterrupted current (Iu) 160 A
Number of poles 4
Trip unit Thermomagnetic TMD
Thermal setting range 35 to 50 A
Instantaneous magnetic setting 500 A
Rated operational voltage Up to 690 V AC / 500 V DC
Rated insulation voltage 800 V
Rated impulse withstand voltage 8 kV
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. 1.4 kg
HS Code 85362090
Country of Manufacture Italy

Frequently Asked Questions

What is the ABB 1SDA066815R1 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 1SDA066815R1 has a 50 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 the XT1B 160 TMD 50-500 4P F F use?

This fixed MCCB uses front terminals, making it suitable for standard installation in switchboards, control panels and distribution assemblies.

Trusted by Electrical Professionals Worldwide

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