B10B1050A IMO MCB 10kA, B Curve 1 Pole, 50 Amp

B10B1050A IMO MCB 10kA, B Curve 1 Pole, 50 Amp

SKU: B10B1050AMPN: B10B1050A
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Why Choose the IMO B10B1050A Miniature Circuit Breaker?

The IMO B10B1050A is a high-quality single-pole miniature circuit breaker (MCB) engineered to provide reliable protection against overloads and short circuits in industrial, commercial and OEM electrical installations. As part of the trusted IMO B10 MCB range, it combines dependable performance with a compact modular design for modern electrical distribution systems.

Designed with a 50 A current rating and a B curve tripping characteristic, the B10B1050A is ideally suited to circuits supplying resistive and lightly inductive loads where rapid protection against fault currents is essential. Its thermal-magnetic operating mechanism helps maximise equipment safety while reducing the risk of cable damage and electrical faults.

The breaker features a compact single-pole configuration for installation on a standard 35 mm DIN rail. With a 10 kA short-circuit breaking capacity, it is suitable for demanding industrial control panels, electrical distribution boards and automation equipment requiring dependable circuit protection.

Key Advantages

  • Compact single-pole miniature circuit breaker.
  • 50 A current rating for higher-load electrical circuits.
  • B curve tripping characteristic for low inrush current applications.
  • 10 kA breaking capacity for reliable fault protection.
  • Thermal-magnetic protection against overloads and short circuits.
  • DIN rail mounting for fast installation in electrical panels.

Key Features

  • IMO B10 miniature circuit breaker series.
  • 50 A rated current.
  • B curve operating characteristic.
  • Single-pole configuration.
  • 10 kA short-circuit breaking capacity.
  • Thermal-magnetic operating mechanism.
  • Contact position indicator window.
  • Suitable for standard 35 mm DIN rail mounting.

Reliable Circuit Protection for Industrial Installations

The IMO B10B1050A uses a proven thermal-magnetic mechanism to disconnect electrical circuits when overload or short-circuit conditions occur. This helps protect cables, switchgear and connected equipment while improving overall electrical system safety.

Its B curve characteristic is intended for applications with relatively low inrush currents, making it suitable for lighting circuits, electrical distribution, heating equipment, control panels and general industrial installations where rapid fault protection is required.

Typical Applications

  • Industrial control panels.
  • Commercial electrical distribution boards.
  • Lighting circuits.
  • Heating systems.
  • Control and automation equipment.
  • OEM machinery and electrical installations.

Technical Specifications

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Current 50 A
Phase Single Phase
Poles 1-pole
Device Type MCB
Trip Curve B curve
Breaking Capacity 10 kA
Manufacturer IMO Precision Controls
Series B10 Miniature Circuit Breakers
Model B10B1050A
Product type Miniature circuit breaker (MCB)
Rated current 50 A
Number of poles 1
Trip characteristic B Curve
Rated voltage 230/400 V AC
Frequency 50 / 60 Hz
Breaking capacity 10 kA
Standards IEC 60898-1
Protection rating IP20
Mounting type 35 mm DIN rail
Terminal capacity Up to 35 mm²
HS Code 8536201090
Country of Manufacture China

Frequently Asked Questions

What is the IMO B10B1050A used for?

The IMO B10B1050A protects electrical circuits against overloads and short circuits in industrial, commercial and OEM electrical installations.

What current rating does this circuit breaker have?

The breaker has a 50 A rated current.

What does the B curve characteristic mean?

The B curve is designed for circuits with relatively low inrush currents, making it ideal for lighting, heating and general electrical distribution applications.

What is the interrupting capacity?

The B10B1050A provides a 10 kA short-circuit breaking capacity for dependable circuit protection.

How is the breaker installed?

The breaker is designed for installation onto a standard 35 mm DIN rail within electrical distribution boards and control panels.

Trusted by Electrical Professionals Worldwide

IMO miniature circuit breakers are trusted by electrical contractors, panel builders and industrial engineers for dependable circuit protection, high-quality construction and reliable long-term performance.