11-volt relay?
Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=36249
Printed Date: May 11, 2025 at 1:38 AM
Topic: 11-volt relay?
Posted By: joeyoone
Subject: 11-volt relay?
Date Posted: July 27, 2004 at 12:39 AM
The accessories output wire on my alarm only outputs 11.2 volts; it doesn’t seem to work with your standard BOSCH 12volt relay. Where can I find an 11-volt automotive relay? I’m only using the relay to convert polarity, so a high current relay is not necessary. Thanks
Replies:
Posted By: sparkie
Date Posted: July 27, 2004 at 3:44 PM
Recheck your wiring for the relay and the alarm. Eleven volts is enough for a Bosch relay to activate providing the output doesn't drop when a load is applied to it. Use a digital volt meter and set it to a 12 volt DC scale. Place your meter probes across terminals # 86 & #85. Activate the alarm's output and watch the voltage on the meter. If it drops below 10 volts you either have a defective output on your alarm or the relay's ground is no good. Also confirm the polarity of the alarm's output to see if it is a positve or negative out. The other terminal on the relay must be the opposite.
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sparky
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