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Noark 80A 500VDC 2Pole MCCB - 852894 (Ex9MD1B)

Noark 80A 500VDC 2Pole MCCB - 852894 (Ex9MD1B)

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  • High-current DC MCCB – designed for battery and DC power systems
  • 500 V DC rated – achieved using 2 poles at 250 V DC per pole
  • Wide current range – available from 80 A to 250 A
  • High breaking capacity – patented arc extinguishing technology for DC circuits
  • AS/NZS 5139 compliant – suitable as a main battery disconnect
  • Flexible installation options – busbar, lug, plug-in, or rear connection
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  • Description
  • Downloads

Description

Overview

The Noark EX9MD 500 V DC 2 Pole MCCB Circuit Breakers (80 A – 250 A) are high-performance moulded case circuit breakers designed for reliable protection of high-current DC circuits, particularly within battery energy storage systems.

Primarily used on battery banks, the EX9MD range provides a more serviceable and robust alternative to traditional NH fuse bases, combining high DC breaking capacity with advanced protection and flexible installation options.

Key Features

DC Performance & Safety

  • Rated at 250 V DC per pole (2 pole configuration = 500 V DC)
  • High breaking capacity with patented arc extinguishing design
  • Designed specifically for DC circuit protection

Current Ratings & Frame Sizes

  • 80 A – 125 A models: frame size 90 × 140 × 109 mm
  • 160 A – 250 A models: frame size 105 × 157 × 126 mm
  • Suitable for small to medium battery banks and DC systems

Ease of Operation & Design

  • Patented technology reduces manual operating force
  • High-quality, compact modular construction
  • Energy-efficient and environmentally friendly design

Installation Flexibility

  • Busbar connection options
  • Lug line/load side connections
  • Plug-in and rear connection options available
  • Field-installable accessories for system customisation

Protection & Compliance

  • Fixed and adjustable trip setting units available
  • Certified to EN 60947
  • Complies with AS/NZS 5139:2019 for use as a main battery circuit breaker

Downloads

Brochure User Manual