SKU: UB10B1050AMPN: UB10B1050A
UB10B1050A IMO 10kA UL489 MCB 1 pole 50A B Curve

UB10B1050A IMO 10kA UL489 MCB 1 pole 50A B Curve

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Original price was: £20.34.Current price is: £15.32.

Why Choose the IMO UB10B1050A 50 A Type B Miniature Circuit Breaker?

The IMO UB10B1050A is a robust and compact single-pole miniature circuit breaker (MCB) designed to protect low-voltage electrical circuits against overloads and short circuits. Manufactured by IMO Precision Controls, it provides dependable circuit protection for industrial machinery, commercial electrical systems and control-panel installations.

This miniature circuit breaker features a Type B tripping characteristic, making it suitable for circuits where relatively low levels of inrush current are expected. It combines thermal overload protection with rapid magnetic short-circuit protection, helping prevent damage to cables, equipment and connected electrical components.

With a rated current of 50 A, a high 10 kA short-circuit breaking capacity and a space-saving single-pole configuration, the UB10B1050A is ideal for modular distribution boards, industrial control cabinets and OEM equipment. Its standard DIN rail mounting format enables straightforward installation alongside compatible switching and protection devices.

Key Advantages

  • Reliable overload and short-circuit protection.
  • 50 A rated current for higher-current electrical circuits.
  • Type B tripping characteristic for circuits with limited inrush current.
  • High 10 kA breaking capacity for dependable fault interruption.
  • Resettable operation eliminates the need for replacement fuses.
  • Compact DIN rail design simplifies panel and distribution-board installation.

Key Features

  • IMO miniature circuit breaker.
  • 50 A rated current.
  • Type B trip characteristic.
  • Single-pole configuration.
  • 10 kA rated short-circuit breaking capacity.
  • Thermal protection against prolonged overload conditions.
  • Magnetic protection for rapid short-circuit disconnection.
  • Compact modular housing for standard DIN rail mounting.

Technical Specifications

  • Manufacturer: IMO Precision Controls
  • Model: UB10B1050A
  • Product type: Miniature circuit breaker
  • Rated current: 50 A
  • Trip characteristic: Type B
  • Number of poles: 1
  • Rated short-circuit capacity: 10 kA
  • Protection type: Thermal-magnetic
  • Protected faults: Overload and short circuit
  • Operating frequency: 50 / 60 Hz
  • Mounting type: DIN rail
  • Installation type: Modular distribution board or control panel
  • Reset method: Manual toggle operation
  • Application: Low-voltage circuit protection

Reliable Protection for Low-Voltage Electrical Circuits

Miniature circuit breakers such as the IMO UB10B1050A automatically disconnect an electrical circuit when excessive current is detected. The thermal element responds to sustained overload conditions, while the magnetic trip mechanism provides fast disconnection during high-current short circuits.

The Type B operating characteristic is intended for circuits that do not normally experience significant starting currents. This makes the UB10B1050A suitable for compatible resistive loads, distribution circuits, electrical heating systems and control applications requiring reliable 50 A protection.

Typical Applications

  • Industrial electrical control panels.
  • Commercial distribution boards.
  • Resistive heating circuits.
  • Machinery power and control circuits.
  • Building-services electrical systems.
  • OEM equipment and automation installations.

Technical Specifications

Current 1050 A
Phase Single Phase
HS Code 8536201090
Country of Manufacture India

Frequently Asked Questions

What is the IMO UB10B1050A used for?

It is used to protect low-voltage electrical circuits against excessive current caused by overloads and short circuits.

What is the rated current of this circuit breaker?

The IMO UB10B1050A has a rated current of 50 A.

What does the Type B trip characteristic mean?

A Type B circuit breaker is designed for circuits with relatively low inrush currents, including resistive loads, heating systems and compatible distribution circuits.

What is the breaking capacity of the UB10B1050A?

The circuit breaker has a rated short-circuit breaking capacity of 10 kA.

How is the IMO UB10B1050A installed?

The UB10B1050A is designed for mounting on a standard DIN rail inside an electrical distribution board, industrial control panel or machinery cabinet.

Trusted Circuit Protection from IMO

IMO miniature circuit breakers provide electrical engineers, panel builders and machinery manufacturers with compact and dependable protection against overloads and short circuits in low-voltage electrical installations.
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