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Motor Protection Circuit Breaker MPX3 63H | 28-40A Adjustable | 50kA Short-Circuit Capacity | IP20 Rated | @EA of 1 | by Legrand
The Motor Protection Circuit Breaker MPX3 63H is designed for reliable protection of 3-phase motors up to 18.5 kW at 415V. With an adjustable overload release current setting from 28-40A and a robust 50kA short-circuit breaking capacity, it ensures safety in industrial and tertiary electrical installations. Featuring thermal overload protection 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 63H | 28-40A Adjustable | 50kA Short-Circuit Capacity | IP20 Rated | @EA of 1 | by Legrand
Brand: Legrand
SKU: 417366
Alternatively Known As: Motor Protection Circuit Breaker, MPX3 Circuit Breaker, Legrand MPX3 Motor Breaker, 3-Phase Motor Protector
Technical Specifications
- Rated operating voltage: 220-690 V
- Rated permanent current (Iu): 40 A
- Rated short-circuit breaking capacity (Icu) at 400 V, AC: 50 kA
- Rated operation power at AC-3, 230 V: 7.5 kW
- Rated operation power at AC-3, 400 V: 18.5 kW
- Number of poles: 3
- Type of electrical connection: Frame clamp
- Overload release current setting: 28-40 A
- Adjustment range undelayed short-circuit release: 520-520 A
- With thermal overload protection: Yes
- Phase failure sensitive: No
- Type of control element: Turn button
- Device construction: Built-in fixed built-in technique
- With integrated auxiliary switch: Yes
- With integrated under voltage release: Yes
- Degree of protection (IP): IP20
- Dimensions (H x L x W): 140mm x 145mm x 55mm
- Weight: 1.5 kg
Key Features
- Thermomagnetic switch off technique
- Overload release current setting adjustable from 28-40 A
- Undelayed short-circuit release adjustment range 520-520 A
- Thermal overload protection included
- Integrated auxiliary switch and under voltage release
- Compatible with MPX3 auxiliaries
- Cage terminals capacity from 0.75mm² to 35mm²
- Easy operation with rotary handle
- Reduced size for optimized cabinet space
- IP20 degree of protection
Professional Installation Requirements
- Installation must be performed by a qualified electrician following all relevant safety standards and manufacturer instructions.
Applications
- Protection of 3-phase motors up to 18.5 kW at 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 an environmentally conscious process
- Complies with substance-restriction requirements to reduce hazardous materials
Warranty Information
Standard manufacturer warranty applies; please refer to Legrand for specific warranty terms.
Available Now
The Legrand Motor Protection Circuit Breaker MPX3 63H 28-40A 50KA is available for immediate purchase, ideal for industrial and tertiary motor protection applications.
