|Item Weight||9.6 ounces|
|Package Dimensions||5.2 x 4.4 x 1.3 inches|
|Item model number||E Support|
|Manufacturer Part Number||CXR40T0304B|
E Support Car Relay 12v 40a Spst 4pin Socket Pack of 5
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1.Brand new heavy duty SPST relays
2.12 Volt 40 amp 4-prong relays
3.Mechanical life of 10,000+ cycles
4.High 40A coil capacity- able to handle those high current applications with ease
5.Hundreds of uses include- starter kills, domelight supervision, trunk release, polarity change,power door lock/actuator control, change a low current output to high current,add ignition/accessory outputs, control motors/other electronics, It is Also suitable for automobile used for control, alarms, horn, headlight and more....
5 x 40A replay (4Pin)
5 X Relay Socket Wire
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80 amp my a**.
5 months later i had to change them just wanted to see how long they would hold up.
And it's been all the relays. Swapping them around yields the same result; A slow ongoing failure that stopped immediately with a new relay from the auto parts store.
Only reason I gave these 2 stars is because it's still a good deal for the sockets themselves. Wiring and connectors within the sockets are pretty good.
1. External contacts for the relay are thinner than they should be for an 80A relay
2. Female contacts in the sockets are not thick enough to carry 80A
3. Socket wire leads for the relay contacts are 18 gauge wire - way way way too small for 80A. These wires should be at least #10 and would be better sized at #8.
#18 wire, used for chassis wiring, is rated to a maximum of 18A. All of the female contacts in the socket are appropriate for this current. #10 wire is rated to 55A while #8 is rated at 74A.
This product should not be used where it will be expected to handle currents over 15A.
The printing on the top of the relay (see picture) says "40A 14 VDC". I have never seen a relay contact rated at 14VDC. Either it's a type-0 or really crappy contacts. I will let you know if they fail.
Measured current draw for relay coil is 128ma @12V. Resistance is 84 ohms. This was pretty consistent across multiple relays.
One star off because some of them are really hard to get into the base.