DC 3P Battery Disconnect Switch 48VDC

R1,104.00R2,466.75 incl Vat

DC 3P Battery Disconnect Switch 48VDC

**Please note: Product may differ from image illustration depending on availability.**

The function of a fuse holder is to integrate fuses safely in electrical circuits, ensure a robust current path (voltage does not creep to other components) and provide a method to replace fuses once they manage over current events as intended.

Battery Disconnect switch for DC application.


DC 3P Battery Disconnect Switch 48VDC

Technical Specification

DC 3P Battery Disconnect Switch 48VDC

Model DHN7-160A DHN7-250A DHN7-400A DHN7-630A
Fuse Size 00 1 2 3
Rated Operational Voltage (Ue V) 500 500 500 500
Rated Operational Current (Ie A) 160 250 400 630
Thermal current w/fuse link (Ith A) 160 250 400 630
Rated Insulation Voltage (Ui V) 1000 1000 1000 1000
Rated Impulse Withstand Voltage (Uimp V) 8000 8000 8000 8000
Fuse Protected Short Circuit Making kA ms 50  50  50  50
Rated Making And Breaking Capacity AC22B AC22B AC22B AC22B
Rated Frequency (Hz) 50 / 60 50 / 60 50 / 60 50 / 60
Power Loss At Im without fuse-link/ phase (W) 12W 23W 34W 48W
Electrical Durability 200  200  200  200
Mechanical Durability 1400 1400 800 800
Degree Of Protection (OPEN) IP20 IP20 IP20 IP20
Degree Of Protection (CLOSED) IP30 IP30 IP30 IP30
Fuse NT00 NT1 NT2 NT3

Additional Information

DC 3P Battery Disconnect Switch 48VDC

Fuses are an integral and essential component in most electrical installations, and they play a vital safety role. The ensure that any excessive current traveling through the wire that could damage the system does not reach critical equipment.

You would need a fuse between the battery and the inverter. This protects the wire and the inverter from overload, potential damage, and fire. Depending on the size inverter you have, you will require different fuses, like 12V, 24V, and 48V inverters would require different size fuses.

To get a better understanding of why you would need a fuse between a battery and inverter, we need to understand the following:

  • What function fuses perform between the battery and inverter
  • How to determine what size fuse you would need for your inverter
  • What happens to the inverter when a fuse blows

Understanding how and why fuses work and why they should always be installed between the battery and the inverter regardless of the inverter size will give you the information you need to ensure your inverter system is protected.

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Rated Operational Current Ie A

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Technical Specification