WATTSTUNDE® Battery Isolator Switch 300A

Disconnect the on-board system in a controlled way: WATTSTUNDE® battery isolator switch 300 A for DC systems

If you want to disconnect your battery system from the on-board system quickly and easily, this battery isolator switch is a practical solution. It can be used as a main switch in DC systems and is designed for a maximum voltage of 48 VDC. For brief current peaks – for example when consumers start up or when higher loads are switched in – it can also handle up to 455 A (10 s).

In everyday use, a battery isolator switch helps you mainly in two areas: it increases safety, for example when working on the electrics, during conversions or in an emergency, and it helps prevent unwanted discharge during longer periods of standing. At the same time, your installation stays tidy because the switch can be integrated centrally in the positive or negative branch (depending on the system concept). Important: the switch is intended for DC applications – i.e. for typical battery and on-board systems.

Applications

Whether in a motorhome, on a boat, in an off-grid set-up or in a stationary DC supply: the isolator switch is a robust option if you want to switch currents reliably. Especially in combination with powerful inverters and appropriately sized cables, it is worth having a switch that cleanly covers both the rated current and short peaks.

Your benefits at a glance

• Disconnect and reconnect the battery system quickly – without undoing cables
• Suitable for DC systems up to max. 48 VDC
• Rated for 300 A (rated current) and 455 A (10 s) for short-term load peaks
• More safety during maintenance, conversion and troubleshooting
• Helps protect against unwanted battery discharge during periods of standing

If you want to protect your DC system reliably and switch it off immediately when required, the WATTSTUNDE® battery isolator switch 300 A is a solid, long-lasting choice.

Documents & downloads

• Technical drawing
• Certificate