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Merlin Equipment M-Power Voltage Sense 140amp Intelligent Relay 12v
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12V Merlin Equipment M Power Voltage Sense 140amp Intelligent Relay
The voltage sense relay simply detects the rise in voltage from you vehicles charging system when it exceeds 13.3v to allow you to charge your leisure battery(s) while your engine is running. When your engine is switched off and the battery voltage drops below 12.8v the relay will isolate your leisure battery(s) from your main starter battery so it does not drain your main starter battery and you will always be able to start your vehicle.
All of the range of 140amp voltage sensitive relays are dual sensing meaning that if a charging voltage like through a mains charger or solar panel is applied to the leisure battery that exceeds the relay activation voltage of 13.3v it will activate the relay to allow this charging device to also maintain the starter battery.
Additional Information
- Relay activation voltage 13.3v
- Relay isolation Voltage 12.8v
- Duel sense operation
Voltage sense systems are especially suited for modern vehicles as this type of system does not need an ignition feed or any additional wiring into your vehicle but for modern Intelligent smart charging vehicles with Euro cat 5/6 engines you may need to use a DC to DC charger.
Delivery:
We provide fast, reliable delivery across mainland UK, with same-day dispatch available on weekday orders placed before 3 pm.
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Free Standard Delivery – available on all orders over £50.
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Tracked Services – all orders are shipped with Royal Mail Tracked 24 or Tracked 48 for full tracking and peace of mind.
- Tracked 48: £3.45
- Tracked 24: £4.25
- Same-Day Dispatch – orders placed Monday to Friday before 3 pm are dispatched the same day. Orders placed after 3 pm are dispatched the next working day.
- Larger Orders – parcels over 2 kg and under £50 may have variable shipping costs depending on size and weight.
If there are ever delays, we’ll let you know straight away. For any questions about your order, our team is always happy to help.
delivery is available to mainland UK addresses only.
Please note: delivery times are estimates provided by Royal Mail and may take longer during busy periods such as bank holidays and Christmas.
Returns:
We want you to be confident when ordering from Thomas Touring. If you need to return an item, please contact us within 30 days of delivery.
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Return Conditions – items must be unused, in their original packaging, and in a resalable condition.
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Return Postage – the buyer is responsible for return postage unless the item is faulty, damaged, or incorrect. We recommend using a tracked postal service for all returns.
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Non-Returnable Items – PCB units and combustion fans are non-refundable. These electrical parts are often misdiagnosed, so please ensure the fault has been confirmed by a qualified technician before ordering.
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Damaged or Faulty Items – if your order arrives damaged, faulty, or incorrect, please contact us so we can arrange a refund or replacement. Return postage will be covered where necessary, and we may request photos to process your claim quickly.
For any questions about returns or refunds, please get in touch with our team. We’re here to help.