Is the unit really 5" x 5" x 5" or is that the box it comes in?

It is no where near 5x5x5" the unit itself is more close to 1x1x1". Be aware though when I purchased this unit I received a dual pole and not a single pole as advertised (i received a relay with 5 prongs instead of 4) and still have not received the right model after Amazon provided 2 more attempts at reimbersment. Though for my application it can still be used (just slower switch reaction do to no power being provided on the 5th prong)

Are these relays suitable for outside the cab of a vehicle. It will receive light moisture at times.

I installed mine under the hood.

Hella 4ra 965 400 001 Relay 12v 30a Spst Bkt

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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$53.96

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power your ride with precision and reliability!

HIGH CURRENT CAPACITY - Handles up to 30A switching current for demanding components like fuel pumps and fans.
PLUG IN MOUNTING BRACKET - Easy installation with secure mounting for hassle-free upgrades.
TRUSTED OE QUALITY BY HELLA - Engineered under stringent standards ensuring long-lasting, dependable performance.
RELIABLE 12 V POWER MANAGEMENT - Optimized for automotive electrical circuits with stable 12V operation.
BUILT TO ENDURE EXTREME CONDITIONS - Operates flawlessly from -40°C to 125°C, meeting ISO standards for durability.

The HELLA 4RA 965 400-001 is a 12V SPST relay designed for automotive use, supporting up to 30A current with a plug-in mounting bracket. Built to meet ISO standards, it operates reliably in extreme temperatures (-40°C to 125°C), making it ideal for engine control units, fuel pumps, and fan motors. Backed by HELLA’s OE quality and a 1-year warranty, it ensures durable and efficient electrical circuit management.

Specifications

ASIN	B004NIKVWC
Best Sellers Rank	#157,852 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #66 in Wiring Kits
Brand	HELLA
Brand Name	HELLA
Coil Resistance	9E+1 Ohms
Coil Voltage	12 Volts
Connector Type	Spst
Contact Current Rating	30 Amps
Contact Material	Copper
Contact Type	Spst
Current Rating	30 Amps
Customer Reviews	4.6 out of 5 stars 897 Reviews
Global Trade Identification Number	00760687123125
Included Components	Relay
Item Type Name	Relay
Item Weight	32 g
Lower Temperature Rating	40 Degrees Celsius
Manufacturer	Hella
Maximum Switching Current	30 Amps
Maximum Switching Voltage	12 Volts
Minimum Switching Voltage	12 Volts
Model Number	4RA 965 400-001
Mounting Type	Plug In Mount
Number of Terminals	3
Operation Mode	Automatic
Part Interchange Info	965400001
Part Number	965400001
Specification Met	[Ferentially Met Industry Standards]
UPC	760687123125
Unit Count	1.0 Count
Warranty Description	1 Year Limited Warranty
Wattage	480 Watts

Reviews

S**H

Good Working

Good

7.11.2018

M**A

Horn relay

The relay arrived quickly and was very easy to install. My horn works properly again !

25.09.2022

B**G

Gerne wieder

Tolle Ware.Gerät funktioniert einwandfrei

22.06.2026

J**R

Bra relä

Fungerar bra. Kopplade ihop denna med en extra tuta på bilen. Känns väldigt solid.

8.11.2025

G**S

Envoie rapide fait fonctionne très bien merci

16.06.2026

A**.

Buen artículo

Artículo perfecto. Ya he usado está marca y funciona genial.

16.06.2026

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