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3 Pole Switch Disconnector 400A 12 kA Short-Time Current IP20 Protection Eaton
The Eaton DMV-400N/3 is a 3 pole switch disconnector with a 400A rated permanent current and 12 kA short-time withstand current—ideal for industrial electrical
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Technical Specifications
- Rated permanent current at AC-21, 400 V: 400 A
- Rated permanent current at AC-23, 400 V: 333 A
- Rated uninterrupted current (Iu): 400 A
- Rated short-time withstand current (Icw): 12 kA for 1 second
- Rated impulse withstand voltage (Uimp): 8000 V
- Switching power at 400 V: 180 kW
- Electrical connection type: Screw connection
- Mounting method: Surface mounting
- Degree of protection (front side): IP20
- Number of poles: Three-pole
- Ambient operating temperature: -25 °C to 55 °C
- Mechanical lifespan: 10,000 operations
- Terminal capacity: 240 mm², flat conductor connection with busbars
- Tightening torque: 28 Nm for screw terminals
- Overvoltage category: III
- Rated insulation voltage (Ui): 1000 V
- Rated operating voltage (Ue): 690 V max and min
- Dimensions (H x L x W): 146mm x 63mm x 205mm
- Weight: 1.8 kg
Key Features
- 400 A rated permanent current at AC-21, 400 V
- 3 pole switch-disconnector
- Optional Stop Function available
- Complete device in housing
- Screw connection for main circuit
- Surface mounting suitable
- Rated short-time withstand current (Icw) 12 kA for 1 second
- Rated impulse withstand voltage 8000 V
- Ambient operating temperature range -25 °C to 55 °C
- Mechanical lifespan of 10,000 operations
- IP20 degree of protection on front side
- Rated operational voltage up to 690 V
- Rated operational power at AC-23A, 400 V, 50 Hz is 180 kW
Professional Installation Requirements
- Installation must be performed by a qualified electrician to ensure compliance with electrical safety standards and proper integration into the electrical system.
Applications
- Industrial electrical panels
- Main switch-disconnector for machinery and equipment
- Emergency stop installations in electrical systems
Standards & Compliance
- AS/NZS 3000 – Wiring Rules (Electrical Installation)
- AS/NZS 3112 – Plugs and Socket-Outlets (Type I Plug)
Environmental Benefits
- Designed for long operational life reducing replacement frequency
- Supports efficient electrical isolation improving safety and energy management
Warranty Information
Warranty details available upon request from Eaton; typically includes coverage against manufacturing defects.
Available Now
The Eaton DMV-400N/3 Switch-disconnector is available for immediate purchase, ideal for industrial and commercial electrical panel applications requiring reliable main switch isolation.
