12v relay
12v relay for sale on Ireland's largest auction and classifieds sites
12v 40a pin relay universal - 12v, 4 - £2.99
Working current 40a • Jd1912 automotive relay • Number pins pin - Free postage - New and Used
Working current 40a • Jd1912 automotive relay • Number pins pin - Free postage - New and Used
12v automotive changeover - 5, x - £14.69
Relay features plastic • Mounting bracket has • Compact sealed construction - Free postage - New and Used
Relay features plastic • Mounting bracket has • Compact sealed construction - Free postage - New and Used
12v automotive changeover - 5, - £10.49
Relay features plastic • Mounting bracket has • Compact sealed construction - Free postage - New and Used
Relay features plastic • Mounting bracket has • Compact sealed construction - Free postage - New and Used
12v automotive on - x, - £12.39
30a blade fuse • Automotive spno relay • Protect circuit includes - Free postage - New and Used
30a blade fuse • Automotive spno relay • Protect circuit includes - Free postage - New and Used
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12v 40a pin - 4, relay - £2.99
Working current 40a • Copper overcurrent protection • Red - Free postage - New and Used
Working current 40a • Copper overcurrent protection • Red - Free postage - New and Used
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48 listings · from £2.29 · avg £7
⚠️ These listings were last updated more than 10 days ago.
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Browse 48 12v relay listings currently in our index. Prices range from £2.29 to £18.99, with an average of £7. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about 12v relay →
12v automotive off - on/off, fused - £6.59
30a blade fuse • Automotive fused spno • Protect circuit includes - Free postage - New and Used
30a blade fuse • Automotive fused spno • Protect circuit includes - Free postage - New and Used
12v 40a pin - 40a, - £3.85
Working current 40a • Jd1912 automotive relay • Number pins pin - Free postage - New and Used
Working current 40a • Jd1912 automotive relay • Number pins pin - Free postage - New and Used
12v 40a pin - pin, relay - £3.36
Pin 40a waterproof • Car relay long • Life automotive relays - Free postage - New and Used
Pin 40a waterproof • Car relay long • Life automotive relays - Free postage - New and Used
12v 40a pin relay universal - relay, - £2.96
Working current 40a • Relay styles are • Optional number needles - Free postage - New and Used
Working current 40a • Relay styles are • Optional number needles - Free postage - New and Used
Fused off automotive - fused, - £6.29
Relays are suited • Wide range 12v • Automotive applications requiring - Free postage - New and Used
Relays are suited • Wide range 12v • Automotive applications requiring - Free postage - New and Used
Automotive relay 12v - relay, 4 - £4.49
12v 40amp pin • Relay holders bases • High quality automotive - Free postage - New and Used
12v 40amp pin • Relay holders bases • High quality automotive - Free postage - New and Used
12v 40a pin relay - 12v, - £2.87
12v 40a pin • Upgrade your vehicle • Electrical system thishigh - Free postage - New and Used
12v 40a pin • Upgrade your vehicle • Electrical system thishigh - Free postage - New and Used
Pack 5pcs 12v automotive - pack, - £13.08
30a blade fuse • Automotive fused spno • Protect circuit includes - Free postage - New and Used
30a blade fuse • Automotive fused spno • Protect circuit includes - Free postage - New and Used
Automotive relay 12v 200a - automotive, - £18.99
12v 200a amperage • Heavy duty automotive • Relay ideal use - Free postage - New and Used
12v 200a amperage • Heavy duty automotive • Relay ideal use - Free postage - New and Used
12v automotive normally - 12v, - £5.44
Its normally close • Work like switch • Relay pieces connectors - Free postage - New and Used
Its normally close • Work like switch • Relay pieces connectors - Free postage - New and Used
Pin changeover automotive - 5, - £7.99
Load closed switched • 12v 30a changeover • Relay fixed moulded - Free postage - New and Used
Load closed switched • 12v 30a changeover • Relay fixed moulded - Free postage - New and Used
12v relay pin 30amp sealed - 4, - £6.99
Automotive relay switching • Lights etc car • Bike van they - Free postage - New and Used
Automotive relay switching • Lights etc car • Bike van they - Free postage - New and Used
12v 40a 4pin - 12v, auto - £6.58
Type 12v 4pin • 5pin optional excellent • Sealed performance pins - Free postage - New and Used
Type 12v 4pin • 5pin optional excellent • Sealed performance pins - Free postage - New and Used
Pin 40a car relay - 4/5, - £4.23
Working current 40a • Relay styles are • Optional electrical life - Free postage - New and Used
Working current 40a • Relay styles are • Optional electrical life - Free postage - New and Used
12v micro automotive - 2, - £8.99
Maximum switching current • 35a spdt relay • Compact sealed construction - Free postage - New and Used
Maximum switching current • 35a spdt relay • Compact sealed construction - Free postage - New and Used
12v 40a pin - 40a, universal - £2.29
12v 40a pin • Relay universal automotive • Car bike boat - Free postage - New and Used
12v 40a pin • Relay universal automotive • Car bike boat - Free postage - New and Used
High quality micro - high, relay - £2.89
Relay holders bases • Premium quality automotive • Cable clip information - Free postage - New and Used
Relay holders bases • Premium quality automotive • Cable clip information - Free postage - New and Used
12v relay modules 4 8 - 12v, - £3.90
12v optocoupler relay • Isolation arduino starter • Modules fault tolerant - Free postage - New and Used
12v optocoupler relay • Isolation arduino starter • Modules fault tolerant - Free postage - New and Used
12v 40a pin relay - 12v, universal - £3.49
Working current 40a • Relay styles are • Optional electrical life - Free postage - New and Used
Working current 40a • Relay styles are • Optional electrical life - Free postage - New and Used
12v 40a pin relay - 40a, 4 - £3.29
Working current 40a • Copper overcurrent protection • Red - Free postage - New and Used
Working current 40a • Copper overcurrent protection • Red - Free postage - New and Used
Standard 12v automotive relay - standard, - £2.69
Standard 12v automotive • Relay pin type • Quantity coil voltage - Free postage - New and Used
Standard 12v automotive • Relay pin type • Quantity coil voltage - Free postage - New and Used
12v automotive on off - x, on/off - £8.99
30a blade fuse • Automotive fused spno • Protect circuit includes - Free postage - New and Used
30a blade fuse • Automotive fused spno • Protect circuit includes - Free postage - New and Used
12v 40a pin relay universal - 12v, - £3.30
Working current 40a • Jd1912 automotive relay • Number pins pin - Free postage - New and Used
Working current 40a • Jd1912 automotive relay • Number pins pin - Free postage - New and Used
12v automotive on - x, - £8.99
30a blade fuse • Automotive fused spno • Protect circuit includes - Free postage - New and Used
30a blade fuse • Automotive fused spno • Protect circuit includes - Free postage - New and Used
12v 30a fuse relay spst - 12v, - £14.99
Max switching current • 30a automotive car • Wire gauge awg - Free postage - New and Used
Max switching current • 30a automotive car • Wire gauge awg - Free postage - New and Used
12v micro automotive - 12v, - £12.59
Maximum switching current • 35a spdt relays • Compact sealed construction - Free postage - New and Used
Maximum switching current • 35a spdt relays • Compact sealed construction - Free postage - New and Used
Universal car relay pin 12v - universal, - £9.40
10pcs set car • Relay application electric • Cooling fans shaved - Free postage - New and Used
10pcs set car • Relay application electric • Cooling fans shaved - Free postage - New and Used
Car relay tester 12v - car, - £3.89
Clear led indicators • Display test results • Instantly helping you - Free postage - New and Used
Clear led indicators • Display test results • Instantly helping you - Free postage - New and Used
12v 100 amp - 12v, - £6.85
12v 100a relay • Fused feed from • Battery power switched - Free postage - New and Used
12v 100a relay • Fused feed from • Battery power switched - Free postage - New and Used
5pcs 12v automotive off - 12v, on/off - £8.49
30a blade fuse • Automotive fused spno • Protect circuit includes - Free postage - New and Used
30a blade fuse • Automotive fused spno • Protect circuit includes - Free postage - New and Used
12v relay pin 30a - pin, sealed - £6.99
Automotive relay switching • Lights etc car • Bike van see - Free postage - New and Used
Automotive relay switching • Lights etc car • Bike van see - Free postage - New and Used
Genuine high quality - genuine, - £7.25
Relay holders bases • 12v 70amp pin • Normally open bracket - Free postage - New and Used
Relay holders bases • 12v 70amp pin • Normally open bracket - Free postage - New and Used
Dc12v relay wireless remote - dc12v, - £4.89
Off 433mhz frequency • Toggle mode press • Deviation 0.2mhz latching - Free postage - New and Used
Off 433mhz frequency • Toggle mode press • Deviation 0.2mhz latching - Free postage - New and Used
Pin normally open automotive - normally, - £7.99
12v 40a normally • Open contact relay • Spst single pole - Free postage - New and Used
12v 40a normally • Open contact relay • Spst single pole - Free postage - New and Used
12v automotive normally - 2, - £8.99
Maximum switching current • 70a excellent shock • Vibration resistance wide - Free postage - New and Used
Maximum switching current • 70a excellent shock • Vibration resistance wide - Free postage - New and Used
12v 70a pin relay heavy - 12v, - £10.69
12v 70a make • Break relay suitable • Applications where ability - Free postage - New and Used
12v 70a make • Break relay suitable • Applications where ability - Free postage - New and Used
12v 40a pin - pin, relay - £3.70
Working current 40a • Jd1912 automotive relay • Number pins pin - Free postage - New and Used
Working current 40a • Jd1912 automotive relay • Number pins pin - Free postage - New and Used
12v automotive off fused - 12v, - £6.49
Upgrade your vehicle • Electrical performance thishigh • Quality pin car - Free postage - New and Used
Upgrade your vehicle • Electrical performance thishigh • Quality pin car - Free postage - New and Used
12v pin automotive relay - 4, & - £6.49
12v 40a make • Break relay suitable • Off applications where - Free postage - New and Used
12v 40a make • Break relay suitable • Off applications where - Free postage - New and Used
12v 40a pin relay universal - 40a, 4 - £3.58
Pin 40a waterproof • Car relay long • Life automotive relays - Free postage - New and Used
Pin 40a waterproof • Car relay long • Life automotive relays - Free postage - New and Used
12v relay pin automotive - relay, 4 - £7.99
Herth buss • 56361021 • 56361031 - Free postage - New and Used
Herth buss • 56361021 • 56361031 - Free postage - New and Used
12v 30a changeover mini - changeover, - £7.99
Upgrade your vehicle • Electrical system this • 12v 30a changeover - Free postage - New and Used
Upgrade your vehicle • Electrical system this • 12v 30a changeover - Free postage - New and Used
250a amp car - car, starter - £10.79
Tasslock heavy duty • 250a automotive relay • Built demanding 12v - Free postage - New and Used
Tasslock heavy duty • 250a automotive relay • Built demanding 12v - Free postage - New and Used
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Everything you need to know about 12v relay
Whether you are looking for a brand-new or second-hand 12v relay, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £2.29, while premium listings can reach £18.99 — giving you a wide budget spread to work with. The average price of £7 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.