Connection Details for Simmerstat EGO50.52076.070

[RodTungsten]

Hi,

I am planning to use one of the single load Simmerstats above to control the heating element of a honey warming cabinet.

Unfortunately I have no good indication of pin-outs. Can anyone tell me which of the following are Live, Neutral and loads?
P1 (double spade)
“
P2
Pilot (clearly one side of the pilot)
4

I have two of these so if all fails I can perhaps ‘experiment’
(I am experienced in electrics – HV laser supplies – 33KV!)

Any help or suggestions gratefully received.

[RodTungsten]

Re: Connection Details for Simmerstat EGO50.52076.070

That should be
P1
2
P2
Pilot
4

[RodTungsten]

Re: Connection Details for Simmerstat EGO50.52076.070

The good news is that you can easily get inside this generic unit to see how it works without damaging it.
Release the metal front plate by gently lifting the tangs with a screwdriver then underneath is a plastic shield which isn’t glued in or anything, it just pulls out.

The bi-metal heater is connected between 2 and 4.
The bi-metal switch is between P1 and 2.
There is an auxiliary switch between 4 and P2 (P2 is the same metal strip as PILOT).
The auxiliary switch is closed when the control is ‘not off’.
Note the short metal stub near ‘TOP’, in line with 2.
It is in fact the same metal strip as 2 so should be treated with respect i.e. it has mains voltage on it.

Live in to P1
Neutral in to 4
Load powered from 2, returning to Neutral
Pilot Light from P1 to P2 (observe that the pilot wiring is a bit scary because it has a switched neutral).

(From the Internet, of course)

[Author]

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