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Motor Protection Circuit Breaker MPX3 100H | 70-90A Adjustable | 75kA Short-Circuit Capacity | IP20 Rated | @EA of 1 | by Legrand

BRAND: Legrand
SKU: 417378
$992.70 List price: $1,237.00
+ −
30 Days Return Delivery Options
The Motor Protection Circuit Breaker MPX3 100H is designed for reliable protection of 3-phase motors up to 45kW. With an adjustable overload release current setting from 70-90A and a robust 75kA short-circuit breaking capacity, it ensures optimal safety in industrial and tertiary electrical installations. Built with a thermomagnetic switch-off technique and IP20 protection, this breaker is perfect for switchboards and power cabinets.

Product Name/Title: Motor Protection Circuit Breaker MPX3 100H | 70-90A Adjustable | 75kA Short-Circuit Capacity | IP20 Rated | @EA of 1 | by Legrand

Brand: Legrand

SKU: 417378

Alternatively Known As: Motor Protection Circuit Breaker, MPX3 Circuit Breaker, Motor Circuit Breaker 70-90A, Legrand MPX3 100H

Technical Specifications
  • Rated operating voltage: 220-690 V
  • Rated permanent current Iu: 90 A
  • Rated operation power at AC-3, 230 V: 30 kW
  • Rated operation power at AC-3, 400 V: 45 kW
  • Overload release current setting: 70-90 A
  • Adjustment range undelayed short-circuit release: 1170 A
  • Switch off technique: Thermomagnetic
  • Number of poles: 3
  • Rated short-circuit breaking capacity Icu at 400 V, AC: 75 kA
  • 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
  • Overload release current setting adjustable from 70-90 A
  • Undelayed short-circuit release adjustable at 1170 A
  • Rated short-circuit breaking capacity Icu of 75 kA at 400 V AC
  • Integrated auxiliary switch and under voltage release
  • Compatible with MPX3 auxiliaries
  • Cage terminals capacity from 2mm² to 70mm²
  • Installation on 35 mm 'top hat' mounting rail or mounting plate
  • IP20 degree of protection
  • Rotary handle for easy operation
Professional Installation Requirements
  • Professional installation by a qualified electrician is required to ensure compliance with electrical safety standards and proper integration into motor control systems.
Applications
  • Protection of 3-phase motors up to 45kW / 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 substance-restriction compliance and environmentally conscious manufacturing processes
Warranty Information

Standard manufacturer warranty applies. Please refer to Legrand for specific warranty terms.

Available Now

Available for immediate purchase, ideal for industrial and tertiary motor protection applications.

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