Can I use a smaller fuse?

Yes, you totally can. The overall load through the circuit should be about 80% of the rating of the fuse. Hope this helps.

is the fuse for output power to the accessory ?

The fuse is protecting the source voltage supply on the #30 terminal. In theory this also protests the accessory wired to the #87 terminal because if the source sees a spike and blows the fuse the output will not see any current. To be safe you can also fuse anything connected to the accessory side of the relay on the #87 terminal independently.

I have two 18w led aux lights hooked up to ome of these and its jimped into my parking lights. Why is ut buzzing?

The only thing i can think is the holding coil. Do the lights flicker

These relays have built -in peak suppression diode?

No, these relays do not have built in flyback diodes.

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ONLINE LED STORE OLS 6 Pack 30A Fuse Relay Switch Harness Set - 12V DC 4-Pin SPST Automotive Relays 14 AWG Hot Wires

ONLINE LED STORE OLS 6 Pack 30A Fuse Relay Switch Harness Set - 12V DC 4-Pin SPST Automotive Relays 14 AWG Hot Wires

Product ID: 318576443

Details

Connector type
Plug-In
Contact material
Silver
Contact type
Normally Open
Current rating
30 Amps
Mounting type
Panel Mount

⚡30A high switching current

🔌14 AWG heavy-duty wiring

🛡️Built-in 30A fuse protection

211.49 DT

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Description

⚡ Power your ride with pro-grade relays—because your car deserves the best!

FUSE READY SAFETY - Integrated fuse socket with included 30A blade fuse guards your circuits from overloads instantly.
BULK PACK ADVANTAGE - Set of 6 relays, harnesses, and fuses—perfect for fleet upgrades or multiple projects, so you never run out.
PLUG PLAY SIMPLICITY - Pre-wired harnesses with clear color-coded wiring make installation seamless and error-free.
POWER UP WITH CONFIDENCE - 30A Bosch-style 4-pin SPST relay ensures reliable high-current switching for your automotive needs.
DURABILITY MEETS PRECISION - Heavy-duty 14 AWG hot wires deliver robust and safe power flow without compromise.

The ONLINE LED STORE 6 Pack 30A Fuse Relay Switch Harness Set features Bosch-style 4-pin SPST automotive relays with 12V DC operation and 30A switching capacity. Equipped with heavy-duty 14 AWG wires and built-in fuse sockets including 30A blade fuses, this set ensures safe, reliable, and easy installation. Ideal for automotive enthusiasts and professionals needing durable, high-performance relay solutions in bulk.

Specifications

ASIN	B01NBAO1SA
Best Sellers Rank	#104,355 in Automotive ( See Top 100 in Automotive ) #40 in Automotive Starter Relays
Brand Name	ONLINE LED STORE
Coil Resistance	8E+1 Milliohms
Coil Voltage	12 Volts (DC)
Connector Type	Plug-In
Contact Current Rating	30 Amps
Contact Material	Silver
Contact Type	Normally Open
Country Of Origin	China
Current Rating	30 Amps
Customer Reviews	4.7 4.7 out of 5 stars (2,263)
Item Weight	0.8 Pounds
Manufacturer	ONLINE LED STORE
Maximum Switching Current	30 Amps
Minimum Switching Voltage	12 Volts (DC)
Model	PSZACCEPS179R
Mounting Type	Panel Mount
Number of Items	6
Number of Packs	6
Operation Mode	Manual
Part Number	PSZACCEPS179R
UPC	816165023880
Wattage	18 watts

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211.49 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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