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Motor Protection Circuit Breaker MPX3 100H | 28-40A Adjustable | 100kA Short-Circuit Capacity | IP20 Rated | @Each of 1 | by Legrand

BRAND: Legrand
SKU: 417374
$934.80 List price: $1,164.90
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The Motor Protection Circuit Breaker MPX3 100H is designed for reliable protection of 3-phase motors up to 18.5 kW. With an adjustable overload release current setting from 28-40A and a robust 100kA short-circuit breaking capacity, it ensures safety in industrial and tertiary electrical installations. Featuring a thermomagnetic switch-off technique and IP20 protection, this breaker is perfect for control and signaling in switchboards and power cabinets.

Product Name/Title: Motor Protection Circuit Breaker MPX3 100H | 28-40A Adjustable | 100kA Short-Circuit Capacity | IP20 Rated | @Each of 1 | by Legrand

Brand: Legrand

SKU: 417374

Alternatively Known As: Motor Protection Circuit Breaker, MPX3 Motor Breaker, Legrand MPX3 100H, Motor Overload Protector

Technical Specifications
  • Rated operating voltage: 220-690 V
  • Rated permanent current Iu: 40 A
  • Rated operation power at AC-3, 230 V: 7.5 kW
  • Rated operation power at AC-3, 400 V: 18.5 kW
  • Overload release current setting: 28-40 A
  • Adjustment range undelayed short-circuit release: 520-520 A
  • Switch off technique: Thermomagnetic
  • Type of electrical connection: Frame clamp
  • Number of poles: 3
  • Degree of protection: IP20
  • Rated short-circuit breaking capacity Icu at 400 V, AC: 100 kA
  • With thermal overload protection: Yes
  • With integrated auxiliary switch: Yes
  • With integrated under voltage release: Yes
  • Type of control element: Turn button
  • 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
  • Overload release current setting adjustable from 28-40 A
  • Undelayed short-circuit release adjustment range 520-520 A
  • Rated short-circuit breaking capacity Icu 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
  • Easy operation with rotary handle
  • Reduced size for optimized cabinet space
  • IP20 degree of protection
Professional Installation Requirements
  • Installation should be performed by a qualified electrician following Legrand installation instructions and local electrical codes.
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)
Environmental Benefits
  • Designed with an environmentally conscious process
  • Complies with substance-restriction requirements
Warranty Information

Standard Legrand warranty applies; please refer to official documentation for details.

Available Now

The Legrand Motor Protection Circuit Breaker MPX3 100H 28-40A 100KA is available for immediate purchase, ideal for industrial and tertiary motor protection applications.