Hirose Electric EM40M High-Current Plastic Connectors

Hirose Electric EM40M High-Current Plastic Connectors feature a high-quality plastic construction and multi-surface contact spring design that enables high current ratings. The connectors provide a push-on bayonet lock mechanism to interlock in a single quick mating action. The EM40M series also offers a JIS C 9711 standard crimp tool for easy contact crimp connections. The Hirose Electric EM40M High-Current Plastic Connectors are available in waterproof and non-waterproof models, and all models comply with IP2X electric shockproof specifications by providing a finger protection design on the plug side. The connectors are UL-registered, RoHS-compliant, and ideal for various high-current applications.

Features

  • High-quality plastic connectors
  • Enables robust and lightweight use
  • Resistant to rough handling
  • Secure push-on bayonet lock
  • Multi-surface contact spring design
  • Easy crimp connection with standard crimp tool
  • Finger protection design, IP2X electric shockproof specification
  • Waterproof version available
  • UL registered
  • RoHS compliant

Specifications

  • Single position
  • Rated current range
    • Non-waterproof: 300A to 450A
    • Waterproof: 300A to 410A
  • 600VAC/DC to 1000VAC/DC rated voltage range
  • 0.6mΩ maximum contact resistance at 1A
  • 1000MΩ minimum insulation resistance at 500VDC
  • 117.2mm2 to 152.05mm2 conductor area
  • Temperature range
    • Non-waterproof: -25°C to +105°C
    • Waterproof: -25°C to +90°C
    • Storage: -10°C to +60°C

Derating Curve

Performance Graph - Hirose Electric EM40M High-Current Plastic Connectors

Current-Time Graph

Performance Graph - Hirose Electric EM40M High-Current Plastic Connectors
Published: 2024-04-30 | Updated: 2025-11-06