UB10C1050A IMO 10kA UL489 MCB 1 pole 50A C Curve

UB10C1050A IMO 10kA UL489 MCB 1 pole 50A C Curve

SKU: UB10C1050AMPN: UB10C1050A
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Why Choose the IMO UB10C1050A Miniature Circuit Breaker?

The IMO UB10C1050A is a heavy-duty UL489 miniature circuit breaker (MCB) engineered to provide dependable protection against overloads and short circuits in industrial control panels, machinery and electrical distribution systems. Manufactured by IMO Precision Controls, this compact branch circuit breaker combines reliable performance with straightforward DIN rail installation for demanding industrial environments.

With a 50 A rated current, C curve trip characteristic and a 10 kA short-circuit breaking capacity, the UB10C1050A is ideal for circuits supplying motors, transformers, power supplies and automation equipment that experience moderate inrush currents. The thermo-magnetic operating mechanism delivers dependable protection while helping to minimise equipment damage and production downtime.

Designed for OEM machine builders, panel manufacturers and industrial electricians, the UB10C1050A offers long mechanical life, robust construction and compliance with UL489 requirements, making it an excellent choice for industrial branch circuit protection.

Key Advantages

  • Compact UL489 miniature circuit breaker for industrial branch circuit protection.
  • 50 A rated current for higher current industrial applications.
  • C curve trip characteristic suitable for moderate inrush current loads.
  • 10 kA breaking capacity provides dependable fault interruption.
  • Thermo-magnetic protection against overloads and short circuits.
  • Standard DIN rail mounting enables quick installation.

Key Features

  • IMO UB10 Series.
  • 50 A rated current.
  • Single pole (1P) configuration.
  • C curve trip characteristic (5 to 10 × In).
  • 10 kA short-circuit breaking capacity.
  • UL489 approved branch circuit protection.
  • Thermal overload and magnetic short-circuit protection.
  • DIN rail mounted construction.

Reliable Circuit Protection for Industrial Installations

Miniature circuit breakers automatically disconnect electrical circuits during overload and short-circuit conditions, helping protect machinery, wiring and electrical equipment from damage. The combined thermal and magnetic trip mechanism ensures reliable operation under both sustained overloads and high fault currents.

The IMO UB10 series is trusted by panel builders, OEMs and industrial maintenance engineers for dependable branch circuit protection, compact installation and long service life in industrial automation and electrical distribution systems.

Typical Applications

  • Industrial control panels.
  • Machine building and OEM equipment.
  • Motor control circuits.
  • Automation and PLC systems.
  • Electrical distribution boards.
  • Commercial and industrial installations.

Technical Specifications

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Certification UL 489
Current 50 A
Phase Single Phase
Poles 1-pole
Device Type MCB
Trip Curve C curve
Breaking Capacity 10 kA
Manufacturer IMO Precision Controls
Series UB10
Model UB10C1050A
Product type Miniature circuit breaker (MCB)
Current rating 50 A
Number of poles 1 Pole
Trip characteristic C Curve
Breaking capacity 10 kA
Rated voltage 277 V AC / 48 V DC
Frequency 50 / 60 Hz
Mounting type 35 mm DIN rail
Protection rating IP20 (NEMA 1)
Mechanical life 20,000 operations
Electrical life 6,000 operations
Dimensions (H × W × D) approx. 108 × 17.5 × 67 mm
Weight approx. 0.13 kg
HS Code 8536201090
Country of Manufacture India

Frequently Asked Questions

What is the IMO UB10C1050A used for?

This miniature circuit breaker protects industrial and commercial electrical circuits against overloads and short circuits.

What current rating does this breaker provide?

The UB10C1050A has a rated current of 50 A.

What does the C curve trip characteristic mean?

The C curve is suitable for circuits with moderate inrush currents, including motors, transformers and industrial control equipment.

How is the breaker installed?

The breaker mounts directly onto a standard 35 mm DIN rail inside electrical distribution boards and industrial control panels.

What is the short-circuit breaking capacity?

The UB10C1050A provides a 10 kA short-circuit breaking capacity for dependable fault protection.

Trusted by Industrial Electrical Professionals

IMO Precision Controls circuit protection products are trusted worldwide by OEMs, panel builders and electrical engineers for dependable performance, high safety standards and reliable protection in demanding industrial environments.