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Motor Protection Circuit Breaker MPX3 100H | 55-75A Adjustable | 50kA Short-Circuit Capacity | @EA of 1 | by Legrand
The Motor Protection Circuit Breaker MPX3 100H is designed for reliable protection of 3-phase motors up to 37kW. With an adjustable overload release current setting from 55 to 75A and a short-circuit breaking capacity of 50kA, it ensures optimal performance in industrial and tertiary applications. Built with a thermomagnetic switch-off technique and an integrated auxiliary switch, this breaker is perfect for control and signaling in switchboards and power cabinets.
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Product Name/Title: Motor Protection Circuit Breaker MPX3 100H | 55-75A Adjustable | 50kA Short-Circuit Capacity | @EA of 1 | by Legrand
Brand: Legrand
SKU: 417377
Alternatively Known As: Motor Protection Circuit Breaker, MP Circuit Breaker, MPX3 Motor Breaker, Thermal Magnetic Motor Protector
Technical Specifications
- Rated operating voltage: 220-690 V
- Rated permanent current (Iu): 75 A
- Overload release current setting: 55-75 A
- Adjustment range undelayed short-circuit release: 975 A
- Rated short-circuit breaking capacity (Icu) at 400 V, AC: 75 kA
- Rated operation power at AC-3, 230 V: 22 kW
- Rated operation power at AC-3, 400 V: 37 kW
- Number of poles: 3
- Degree of protection (IP): IP20
- Type of electrical connection: Frame clamp
- Type of control element: Turn button
- Device construction: Built-in fixed built-in technique
- With integrated auxiliary switch and under voltage release
- Dimensions (H x L x W): 165mm x 171mm x 70mm
- Weight: 1.5 kg
Key Features
- Thermomagnetic switch off technique for reliable motor protection
- Overload release current setting adjustable from 55 to 75 A
- Short-circuit release adjustable range 975 A
- Integrated auxiliary switch and under voltage release
- Compatible with MPX3 auxiliaries
- Cage terminals capacity from 2mm² to 70mm²
- Compact size for optimized cabinet space
- Easy operation with rotary handle
Professional Installation Requirements
- Installation must be performed by a qualified electrician following Legrand installation instructions and local electrical codes.
Applications
- Protection of 3-phase motors up to 37kW / 415V
- Tertiary and industrial electrical installations
- Control and signalling in switchboards and power cabinets
Standards & Compliance
- AS/NZS 3000 – Wiring Rules (Electrical Installation)
- AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- Designed with environmentally conscious processes and complies with substance-restriction requirements
- Helps prevent motor damage and energy waste by providing reliable motor protection
Warranty Information
Standard manufacturer warranty applies. Please refer to Legrand warranty terms for details.
Available Now
The Legrand Motor Protection Circuit Breaker MPX3 100H 55-75A 50KA is available for immediate purchase, ideal for industrial and tertiary motor protection applications.
