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12 VDC Automotive 5-Pin Relay SPDT 30/40A Bosch Type

Overview
This Bosch type 12V, 40A 5-pin relay is popular in automotive sound and security installations.
Highlights
  • Bosch type 12V, 40A 5-pin relay
  • Popular in automotive sound and security installations
  • The relay features a plastic housing with mounting tab for easy installation
Part # 
330-073
Weight: 0.08 lbs.  
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List Price$3.99
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Part # 330-073
Qty:  EA
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Product Details

12 VDC Automotive 5-Pin Relay SPDT 30/40A Bosch Type

This Bosch type 12V, 40A relay is widely used in car sound and automotive security installations. The relay features a plastic housing with mounting tab for easy installation. SPDT, 30/40A. 



12 VDC Automotive 5-Pin Relay SPDT 30/40A Bosch Type
  • BrandParts Express
  • Part Number330-073
  • UPC844632014116
  • Product Category12V Relays & Sockets
  • Unit of MeasureEA
  • Product Rating
    (73 Reviews)
  • Weight0.08 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the 12 VDC Automotive 5-Pin Relay SPDT 30/40A Bosch Type
in the 12V Relays & Sockets product category.

Reviews

12 VDC Automotive 5-Pin Relay SPDT 30/40A Bosch Type
12 VDC Automotive 5-Pin Relay SPDT 30/40A Bosch Type is rated 4.726 out of 5 by 73.
Rated 5 out of 5 by from Great product comes with bracketAfter looking at several parts stores the cheapest one I found was ten bucks. Cheapest with bracket was 20 bucks. No brainer good relay so far.
Date published: 2014-01-28
Rated 5 out of 5 by from Best value for your buckThis relay works great for powering added accessories in your car. Good quality casing and mounting tab is great.
Date published: 2014-01-26
Rated 5 out of 5 by from Power relaysordered for a custom auto application, appear to be very well made. in process of being installed, testing functions, works very well.
Date published: 2014-01-26
Rated 5 out of 5 by from Switching a 120 VAC load from a 12 VDC signalI actually needed to switch 120 VAC at about 5 amps. Even though this relay was only rated for 14 VDC it works well at switching a 120 VDC load.
Date published: 2013-08-12
Rated 5 out of 5 by from Great value and priceI have looked around and this price is by far the best I've found. If you want a relay look no further than right here.
Date published: 2013-06-27
Rated 5 out of 5 by from Incorrect ListingThe part I received is actually a 40/30A Relay. (It's the one I needed anyway) 330-073 list it as 30/40A. Please correct catalog listing, thanks!
Date published: 2013-06-26

Product Q&A

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who own this product or have experience with it.
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please email tech@parts-expresss.com  for a prompt reply.
12 VDC Automotive 5-Pin Relay SPDT 30/40A Bosch Type

How many Amps to opeate the relay?

I want to know the amps needed to actuate the circuit (NO to NC), not the capacity of the relay.
Asked by: kallad
Most Bosche style relays require only 500mA to energize the coil. I've used them frequently to take the amp turn on wire from a car radio and then turn on numerous devices (amps, crossovers, EQs Neon, fans, motorization etc...). Also used them to take a low current 12V source and power fog lights, air horns etc...)
Answered by: Invisible Audio
Date published: 2012-08-15

Coil Voltage

I'm activating this relay with 16 Volts. Is this safe or shorten the life of the coil?
Asked by: TronixH
It will shorten the coil's life a bit, but probably not much. This relay is rated for automotive use, and a car's electrical system runs at about 14V when the car is running and the alternator is charging the battery, so 16V isn't too much more than that. How much it will shorten the coil's life is hard to say.Something you could do is put a resistor in series with the coil, to drop the voltage that appears across the coil to 12V. As I mentioned in my review of this relay, the coil's resistance is 90 ohms, so if you want to drop from 16V to 12V (that is, if you want the resistor to drop 4V), then use a resistor of 30 ohms. However, 30 ohm resistors aren't always available, so something close would work: 27 or 33 ohms would be fine (you don't need to be very precise here). As for the resistor's power rating, it will consume about 0.5W, so make sure it is rated for at LEAST that much power (standard resistors are only rated for 0.25W).
Answered by: eboyer
Date published: 2014-02-07

What the the numbers of the terminals - I need dual 87's

Asked by: Steebe
The numbers on this relay are 30, 85, 86, 87 and 87a.
Answered by: MattP
Date published: 2014-03-12

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