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Siemens Power Relay #171108
11/19/07 10:52 PM
11/19/07 10:52 PM
Cinner  Offline OP
Joined: Dec 2004
Posts: 78
Kelowna, B.C., Canada
Siemens makes a power relay model #3TG1001-0BB4 that has a toggle switch on the front...looks like 1 or 0... I am assuming power on and off...would that be correct? Why would it have an on or off...could this switch mean
something else?

The link to view the relay on page 30 of 32 of the link.:


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Re: Siemens Power Relay [Re: Cinner] #171109
11/19/07 10:59 PM
11/19/07 10:59 PM
LarryC  Offline
Joined: Jul 2004
Posts: 783
Winchester, NH, US
It looks like a flag to visually indicate when the relay has pulled in.

Larry C

Re: Siemens Power Relay [Re: LarryC] #171130
11/20/07 01:24 PM
11/20/07 01:24 PM
JValdes  Offline
Joined: Jun 2007
Posts: 301
South Carolina
Could be a manual on off for troubleshooting. Use care if induction load connected. May flash on you if turned to on and load is bad or shorted.
I could not find the exact relay with your part #. I don't read German.

Re: Siemens Power Relay [Re: JValdes] #171135
11/20/07 02:26 PM
11/20/07 02:26 PM
SteveFehr  Offline
Joined: Mar 2005
Posts: 1,213
Chesapeake, VA
I downloaded the detailed sheet and still can't tell. I believe it's an integrated overload protection breaker.

Re: Siemens Power Relay [Re: SteveFehr] #171184
11/21/07 03:08 PM
11/21/07 03:08 PM
bigrockk  Offline
Joined: Jan 2003
Posts: 174
Middle of Canada
It is listed (in english) on page 30 of the pdf document provided by the link from "cinner".

No overload protection, just simply a relay/contactor with a visual indicator to indicate whether it is "picked up" or not.
The small tab can be used to manually "pick up" the contactor but is not intended for this purpose.


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