This product page details the essential motor circuit breaker, a specialized protective device designed specifically for three-phase motor applications. This 3-pole breaker features an adjustable current range of 4-6.3A, providing precise overload and short-circuit protection for industrial motors, ensuring both equipment safety and operational reliability in demanding environments.
Overview of the Motor Circuit Breaker
The 3-pole motor circuit breaker serves as a critical component in motor control systems. Because it combines motor overload protection with magnetic short-circuit protection in a single device, it offers a compact and efficient solution for safeguarding three-phase motors against electrical faults that could cause damage or dangerous operating conditions.
Key Features and Technical Specifications
This motor protection device is engineered for reliability and precise operation. Therefore, here are its essential characteristics:
- Poles: 3-pole configuration for three-phase systems
- Current Range: Adjustable 4-6.3A for precise motor matching
- Protection: Integrated overload and short-circuit protection
- Mounting: Typically DIN rail mounted for easy installation
- Breaking Capacity: Suitable for motor starting currents
- Tripping Class: Class 10 for fast motor protection
- Voltage Rating: Standard industrial voltage ratings (e.g., 400VAC)
- Standards: Compliant with IEC/EN 60947-2 and IEC/EN 60947-4-1
Typical Applications and Use Cases
The specific current rating of this motor circuit breaker makes it ideal for various small to medium motor applications. For example, it is commonly used for:
- Small industrial pump motor protection
- Fan and blower motor circuits
- Conveyor system drive motors
- Packaging machinery motors
- HVAC system compressor and fan motors
- Machine tool auxiliary motors
- Processing equipment motor protection
For complete motor control solutions, explore our range of compatible contactors and motor starters designed to create coordinated motor control centers.
Why Choose This Motor Circuit Breaker?
Selecting this specific motor circuit breaker provides significant advantages for motor protection. Firstly, the adjustable current setting (4-6.3A) allows for exact matching to the motor’s full load current, providing optimal protection without nuisance tripping during normal operation. Secondly, the integrated design eliminates the need for separate fuses and thermal overload relays, reducing panel space requirements and simplifying maintenance procedures. Consequently, you achieve comprehensive motor protection that ensures operational reliability while minimizing installation complexity and costs.
Installation and Configuration Guidelines
Proper installation and setting of this motor circuit breaker are crucial for effective protection. Mount the device on a standard DIN rail and connect the three-phase power conductors to the appropriate terminals. Set the current adjustment to match the motor’s exact nameplate full-load current, ensuring the setting falls within the 4-6.3A range. Furthermore, always verify the installation with functional testing to ensure both overload and short-circuit protections operate correctly according to the manufacturer’s specifications.
For detailed technical specifications and application guidelines, consult the comprehensive Allen-Bradley circuit breaker technical resource.
Protect Your Motor Investments Today
In summary, this 3-pole motor circuit breaker with its 4-6.3A adjustable range represents a precise and reliable solution for three-phase motor protection. Finally, by incorporating this specialized protective device into your motor control systems, you ensure equipment safety, reduce downtime, and extend motor lifespan in your industrial applications.
