Can anyone identify this step switch

[Tombola]

or a modern equivalent.
It is in relation to my other ongoing spaghetti electrics post here
but I thought I'd get more views with the individual title on this query.

The step doesnt retract automatically as standard but does alert with a buzzer, the switch only has 4 spade connecters on the back and I can only seem to find 5 pin ones
similar to the pro 200 or this one with 5 pins, https://eshartleyleisurespares.co.uk/product/step-rocker-switch/

Spare Rocker Switch P2000 Steps - Replacement Switch for P2000 Motorhome Steps

Ensures that the step automatically retracts when engine is started. Can be fitted to Project 2000 steps.

ukcampingandleisure.co.uk

or can I use a 5 pin switch and just connect using 4?
Thanks for any info

 

[RandallC]

have you tried Rs components

65 for 'rocker switch' | RS

uk.rs-online.com

or

https://cpc.farnell.com/search?st=rocker%20switch&gs=true

 

[Two on Tour]

I have found you a 4 pin rocker, but it's a bit on the pricey side and maybe of Italian manufacture.

Maserati 228 2.8 184kw Coupe 1990 RHD Front left Electric window control switch | eBay

Please check the package before signing for the delivery. If you sign for the delivery we wont be able to claim money back for damages made by the courier. Your signature means you have received the package in good condition and no refund will be issued. If package is damaged please do not take...

www.ebay.com

 

[Tombola]

I have found you a 4 pin rocker, but it's a bit on the pricey side and maybe of Italian manufacture.

Maserati 228 2.8 184kw Coupe 1990 RHD Front left Electric window control switch | eBay

Please check the package before signing for the delivery. If you sign for the delivery we wont be able to claim money back for damages made by the courier. Your signature means you have received the package in good condition and no refund will be issued. If package is damaged please do not take...

www.ebay.com

well well well,
I searched the image you posted and it linked me an identical switch image here on MHF too
thanks

Thread 'Replacing electric step switch'

Jul 4, 2022

I am replacing the old switch for Thule step and am having a slight problem getting it to work!

I have attached pictures of original switch and wiring and new switch.

What seems to happen is that if I move the double cable (black and brown) between the two terminals that are left it will either open or close the steps.

This suggest that I should split these two onto the 2 connectors, does that make sense?

(Ignore the copper cable in 3rd pic, that is for a light switch in same cluster)

Thanks for any help...

• engelside
• Replies: 7
• Forum: Tech/Mech General

 

[Landy Andy]

Possibly the extra pin may be for it illumination

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[autorouter]

CBE do several versions of a step switch, and there are diagrams for each version here. Other switches are similar.

The first one, for example, is a 5-terminal switch, which can be used as a 4-terminal switch if two of the terminals are connected together (2 and 5 in this example). The question is, how do you identify the terminals? Use a meter to check for continuity between the terminals.

With the switch in the OFF position, one terminal is not connected to any of the others. That is the positive supply - let's call it terminal A.
Two pairs of terminals will be connected together. If we call them B, C, D and E, then B and C are connected, D and E are connected, but there is no connection between the two pairs.

With the switch in the CLOSED (retract) position, one pair will remain unchanged, but one of the other pair will disconnect from the other and connect to the positive supply terminal A. The one that changes is a motor terminal, The one that is disconnected from is the negative supply.

With the switch in the OPEN (extend) position, a similar thing will happen to the other pair. one terminal will disconnect from the other and connect to the positive supply A,and that is the other motor terminal. The one that is disconnected is a second negative supply terminal.

So now you have the positive supply, two negative supplies, and two motor terminals. So wire up the switch and give it a try. If it does the opposite of what you want (extends in the CLOSED position, retracts in the OPEN position), simply reverse the two motor terminals.

The 5-terminal switch can be used in an automatic retraction setup. If you don't want that, just common the two negative terminals together and treat it as one terminal. It will then behave like a 4-terminal switch.

 

[Tombola]

CBE do several versions of a step switch, and there are diagrams for each version here. Other switches are similar.

The first one, for example, is a 5-terminal switch, which can be used as a 4-terminal switch if two of the terminals are connected together (2 and 5 in this example). The question is, how do you identify the terminals? Use a meter to check for continuity between the terminals.

With the switch in the OFF position, one terminal is not connected to any of the others. That is the positive supply - let's call it terminal A.
Two pairs of terminals will be connected together. If we call them B, C, D and E, then B and C are connected, D and E are connected, but there is no connection between the two pairs.

With the switch in the CLOSED (retract) position, one pair will remain unchanged, but one of the other pair will disconnect from the other and connect to the positive supply terminal A. The one that changes is a motor terminal, The one that is disconnected from is the negative supply.

With the switch in the OPEN (extend) position, a similar thing will happen to the other pair. one terminal will disconnect from the other and connect to the positive supply A,and that is the other motor terminal. The one that is disconnected is a second negative supply terminal.

So now you have the positive supply, two negative supplies, and two motor terminals. So wire up the switch and give it a try. If it does the opposite of what you want (extends in the CLOSED position, retracts in the OPEN position), simply reverse the two motor terminals.

The 5-terminal switch can be used in an automatic retraction setup. If you don't want that, just common the two negative terminals together and treat it as one terminal. It will then behave like a 4-terminal switch.

Great thanks again