How many millamps does the coil draw at 12 volt or what is the ohm of the coil ?

The trigger uses a load of ~150 milliamp while the coil has a max resistance of 100 milliohm. Hope this helps.

Do these have a built in diode?

Not for the led that is determined by the wattage of the bulb a 12 volt led 1156 should have the diode built in it.

Can you leave the relay energized for long periods of time? I want to connect to the 'load' circuit on a solar panel controller.

The load would have a big affect on how long it can run. I have LED running lights wired in on my motorcycle which are on all the time so they can be lit for many hours at a time. So far I have not had any issues with these relays. A low load through the contact would allow it to be energized forever theoretically.

What gauge is the wires I need 12 gauge but I have found normally they are only 14 gauge

On the set just received, three wires are 14 GA. (power and N.O. and N.C. wires). The other two wires (coil trigger) are 18 GA. rather than 16 GA. as indicated in one of the photographs........... also wish vendor supplied operation cycle rating, I know the rating is higher with a 30 amp load vs. a 40 amp load, but are we talking about 200,000 total cycles @30 amps or something drastically LESS????

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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ONLINE LED STORE 6 Pack - 12V DC 40/30 Amp 5-Pin SPDT Automotive Relay Harness Set (Bosch Style with Interlocking Harnesses)

Product ID: 275032137

Details

Connector type
Solder
Contact material
Silver Tin
Contact type
Normally Open
Current rating
30 Amps
Mounting type
Socket Mount

⚡40A/30A high switching power

🔌5-pin SPDT Bosch-style relay

🧩Interlocking harness for neat cable management

Description

🔧 Upgrade your ride with pro-grade relays that keep you ahead of the curve!

BUILT TO LAST - Heavy-duty 14AWG wires for superior durability and stable connections
TIDY TECH SETUP - Interlocking harness design keeps wiring organized and hassle-free
VERSATILE WIRING - Color-coded leads simplify installation and customization for any project
PLUG PLAY PRECISION - Bosch-style 5-pin SPDT relay ensures reliable, industry-standard performance
POWER UP WITH CONFIDENCE - Handles up to 40A/30A for heavy-duty automotive demands

The ONLINE LED STORE 6 Pack 12V DC 40/30 Amp 5-Pin SPDT Automotive Relay Harness Set features Bosch-style relays with high switching capacity, interlocking harnesses for organized wiring, and heavy-duty 14AWG pre-wired leads. Perfect for automotive enthusiasts and professionals seeking reliable, durable relay solutions for complex electrical setups.

Specifications

ASIN	B01KVZ2MU4
Best Sellers Rank	#57,778 in Automotive ( See Top 100 in Automotive ) #15 in Automotive Starter Relays
Brand Name	ONLINE LED STORE
Coil Voltage	12 Volts
Connector Type	Solder
Contact Material	Silver Tin Oxide
Contact Type	Normally Closed, Normally Open, spdt
Current Rating	30 Amps
Customer Reviews	4.7 4.7 out of 5 stars (1,804)
Item Weight	426 g
Manufacturer	ONLINE LED STORE
Maximum Switching Current	40 Amps
Model	13
Mounting Type	Socket Mount
Number of Items	6
Operation Mode	Automatic
Part Number	PSZACCEPS175R
UPC	816165023088
Unit Count	6 Count

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