Heavy Duty Relay 12V 100A Offroad Living

Heavy Duty Relay 12V 100A

SKU RELAY12V100A

$65.00

Operating Temperature: -40°C to +85°C

All specifications

or pay now with

Questions? for expert advice, or read our buying guides

Key features

100 amp continuous rated switching capacity at 12V DC
Sealed relay body resists dust, moisture, and vibration for reliable off-road performance
Low-resistance silver-alloy contacts reduce voltage drop under load
Standard 5-pin (SPDT) configuration for both normally-open and normally-closed switching
12V coil activation voltage compatible with all standard automotive and caravan 12V systems
Compact form factor fits standard automotive relay sockets and DIN-rail mounts
Suitable for switching winches, air compressors, dual-battery isolators, fridge circuits, and LED light bars
Heavy-duty terminal ratings accommodate cable sizes appropriate for 100A load circuits
Durable ABS plastic housing rated for continuous operation in high-temperature engine bay environments

Overview

The Offroad Living Heavy Duty Relay 12V 100A is a purpose-built switching relay designed to handle the demanding electrical loads found in caravans, 4WD vehicles, camper trailers, and motorhomes. Rated at a full 100 amps continuous at 12V DC, this relay features a sealed, vibration-resistant construction that stands up to the corrugated tracks, creek crossings, and rough terrain that Australian off-road travellers encounter every day. Its low-resistance contacts minimise voltage drop, protecting sensitive 12V accessories and ensuring consistent performance across the full load range.

Ideal for Australian caravan and 4WD enthusiasts who need reliable switching control for high-current accessories — think winches, compressors, dual-battery systems, fridge circuits, lighting bars, and electric brakes — this relay is a go-to component for custom 12V electrical builds. Whether you're wiring a touring rig from scratch or upgrading an existing setup in your RV or off-road camper, the Offroad Living 100A relay delivers the grunt needed to switch heavy loads safely, protecting your wiring and accessories from the heat and vibration of life on the road in Australia's harshest conditions.

Key Features

100A continuous rated contacts for heavy-duty 12V switching applications
Sealed, vibration-resistant housing — built for corrugated outback tracks and off-road use
Low-resistance contact design minimises voltage drop across high-current circuits
Standard 5-pin automotive relay footprint — fits common relay sockets and harnesses
Suitable for winches, dual-battery systems, compressors, lighting bars, and fridge circuits

Delivery, returns & warranty

Shipping & Returns

Shipping

Outdoor Camping Australia operates a nationwide distribution network, with items shipping from:

Our warehouse in Bendigo, Victoria
Partner supplier warehouses on the East Coast
Partner supplier warehouses on the West Coast

This multi-location approach allows us to provide efficient delivery across Australia. Use our shipping calculator on the product pages for accurate delivery times and costs to your location.

Important Shipping Notes:

We cannot deliver to PO Boxes, Private Mail Bags or Parcel Lockers
Depot pickup options may be available at reduced rates (contact us to discuss)
Off-mainland deliveries require additional shipping fees (custom quoted)
Missed deliveries may incur a redelivery fee set by the courier
All shipments managed through our trusted delivery partners including Border Express, VicTas, DHL, StarTrack, AusPost, Sendle and Aramex

Returns

As outlined in our Refund Policy, we follow the Australian Consumer Law (ACL) which protects consumers by providing certain guaranteed rights when buying goods and services.

You can return items if:

The product is faulty or not of merchantable quality
The product is not fit for its intended purpose
The product does not match the description
You can present proof of purchase

For change of mind returns:

Item must be in original condition with tags attached
Must be returned within 30 days of purchase
Original proof of purchase required
Return shipping is at customer's expense
Original delivery charges are non-refundable unless due to our error

Refunds will be processed within 10 business days of receiving and inspecting the return.

For full details, please refer to our:

Warranty Details

+

12-month manufacturer warranty against defects in materials and workmanship.

Customer reviews

No reviews for the Heavy Duty Relay 12V 100A yet. Be the first.

Specifications

Brand	Off Road Living
SKU / Model	RELAY12V100A
Operating Voltage	12V DC
Coil Voltage	12V DC
Continuous Current Rating	100A
Contact Configuration	SPDT (5-pin: 30, 85, 86, 87, 87a)
Contact Material	Silver alloy
Coil Resistance	Approx. 75–90 Ω
Operating Temperature	-40°C to +85°C
Housing Material	High-temperature ABS plastic
Ingress Protection	Dust and splash resistant
Terminal Type	Spade / blade terminals
Mounting	Standard automotive relay socket compatible
Suitable Applications	Winches, compressors, dual-battery systems, lighting, fridge circuits, electric brakes
Country of Origin	China