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Motor Protection Circuit Breaker MPX3 100H | 45-63A Adjustable | 100kA Short-Circuit Capacity | by Legrand
The Motor Protection Circuit Breaker MPX3 100H is designed for reliable protection of 3-phase motors, featuring an adjustable overload release current from 45 to 63A and a robust 100kA short-circuit breaking capacity. Ideal for industrial and tertiary electrical installations, this breaker ensures safety and compliance with local electrical codes, making it a perfect choice for switchboards and power cabinets.
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Technical Specifications
- Rated operating voltage: 220-690 V
- Rated permanent current (Iu): 63 A
- Overload release current setting: 45-63 A
- Adjustment range undelayed short-circuit release: 819-819 A
- Rated short-circuit breaking capacity (Icu) at 400 V AC: 100 kA
- Rated operation power at AC-3, 230 V: 15 kW
- Rated operation power at AC-3, 400 V: 30 kW
- Number of poles: 3
- Degree of protection (IP): IP20
- Type of electrical connection: Frame clamp
- Type of control element: Turn button
- With thermal overload protection: Yes
- With integrated auxiliary switch: Yes
- With integrated under voltage release: Yes
- Phase failure sensitive: No
- Device construction: Built-in fixed built-in technique
- 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 adjustable from 45 to 63 A
- Short-circuit release adjustable range 819-819 A
- Rated short-circuit breaking capacity of 100 kA at 400 V AC
- 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's instructions and local electrical codes to ensure safety and compliance.
Applications
- Protection of 3-phase motors up to 30kW at 415V
- Tertiary and industrial electrical installations
- Control and signalling in switchboards and power cabinets
Standards & Compliance
- AS/NZS 60950 – Safety of IT and Communication Equipment
Environmental Benefits
- Designed with environmentally conscious processes and complies with substance-restriction requirements
- Helps prevent electrical faults that could lead to energy waste or equipment damage
Warranty Information
Standard manufacturer warranty applies; please refer to Legrand's official warranty policy for details.
Available Now
The Legrand Motor Protection Circuit Breaker MPX3 100H 45-63A 100KA is available for immediate purchase, ideal for industrial and tertiary motor protection applications.
