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Baomain Delay Control Relay (Delay ON / Delay OFF) Usage

ThomsCircuit

Well-Known Member
I have these two relays from a company called Baomain.
Timer Relay TBT7-B2 (Delay on)
Timer Relay TBT7-C2 (Delay off)
Id like to know how to configure them. I cannot seem to find a datasheet or any examples
baomain-Side-delayON.jpg
baomain-delayON.jpg

 
Hi

This is how I understand the diagram:
NC=Normally closed contact
NO=Normally open contact

1. When the coil is de-energized, NC is closed, NO is open.
2. When the coil is energized, timer starts
3. When timer ends, NC opens, NO closes, and this state is latched.
4. When S is pressed and held, NC closes, NO opens, and the latched state is reset.
5. When S is released, goto 2.
 
This is how I understand the diagram:
NC=Normally closed contact
NO=Normally open contact
thank you E.
I located the seller. I sent a request for instructions as well. Like I'm still not sure how the percentage dial is set.
 
The top dial sets the "100%" or maximum delay, the percentage dial sets the proportion of that.
eg. 10 minutes range and 20% should give two minutes.
 
The top dial sets the "100%" or maximum delay, the percentage dial sets the proportion of that.
eg. 10 minutes range and 20% should give two minutes.
Thank you. I gave it a try and it did work. It odd that I cannot find any documentation but I just want to be sure before I use it. If you have a minute could you look at my other question in this group? I just want to know if I did a good job.
 

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