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Discarnect Post Mounted Battery Master Switch image #1
Discarnect Post Mounted Battery Master Switch image #2
Discarnect Post Mounted Battery Master Switch image #2
Discarnect Post Mounted Battery Master Switch image #2
Battery Master Switches

Discarnect Post Mounted Battery Master Switch

Part Number: 020.012
£11.94 inc. VAT In stock
This product is not eligible for free UK delivery.

Discarnect Master Switch, mounts to battery posts, including flat type. Designed for negative terminal To fit, remove your -ve battery lead and slip the clamp part of the Discarnect onto your battery post. Simply re-connect your negative battery lead to the lug on the Discarnect. You have to stretch it if you wish to fit to the +ve terminal. To immobilise the car unscrew and remove the knob. The by-pass fuse maintains current to all electrical circuits (alarm, stereo etc). As the starter motor draws over 150 amps, any attempt to operate or hot wire the starter motor will cause the fuse to blow, immobilising the car until the knob is screwed back on. Rated for a continuous load of 100 amps on 12 volt systems. This is for use on the EARTH TERMINAL ONLY

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Please call +44 (0) 1885 488 488 between 9 and 5 (UK time) Monday to Friday to speak to one our sales team.

Visit our shop: 

We also have a shop at Bromyard, so if you live nearby, or are in the area please call.

Holden Vintage & Classic, Linton Trading Estate, Bromyard, Herefordshire, HR7 7QT, United Kingdom

Open 9.00am and 5.00pm Monday to Friday. We are closed Bank Holidays.


Delivery charges are based on the value and weight of your order and your location. 

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More information about our delivery methods can be found here

At Holden Vintage & Classic, we want you to be delighted with your purchase.

For this reason, if a product is faulty or defective, you may return it to us with a covering letter explaining the problem within 12 months of the date of purchase. We will send you a returns label to send the item back at our cost, and upon receipt of the returned goods, we will repair the product for you or send you a replacement.

If you've had a change of heart, you may return most new unused or unopened items, within 14 days of receipt for a full refund. The items must be in an as-new, resaleable condition. 
A copy of the sales invoice must accompany all returned goods. Sadly we do not refund postage costs unless the products are incorrect or faulty.

If you're unsure of anything, give us a call Monday to Friday 9am to 5pm, on +44 (0) 1885 488 488. 

Read more about returns here.