Compact 32-channel OMRON relays module

[eladn]

Hi

I came across these OMRON relay modules with 32 channels. It can save lots of space in the power distribution box. Much more compact than using 24 channels module + 8 channels module. What do you think? Will you consider selling these in your store? I would prefer to buy your products, as I trust your quality more than some random store online. Hence I ask here first.

A picture is attached below. Here is an example of such a product: https://www.aliexpress.com/item/1005001855288063.html (hope it's fine to share here a link)

Technical design considerations:
* Its length is 300mm, while the 16-channel module (sold on KinCony store) length is 248mm - so it's just 5cm longer - very acceptable. There are 16 relays in each line (exactly like the 16-channels module), but there is an extra control connectors strip on the side - that's why the extra 5cm is needed.
* Its height is 120mm, while the H32B* modules are 117mm high - very reasonable! 
* Even though the product in the example uses 10A relays (G2R-1), still the G2R-1-E relays (16A as used by KinCony's 16-channels module) can also be used in the 32-channels module design. Both kinds (G2R-1 for 10A and G2R-1-E for 16A) have the same width (13mm) & length (29mm), and hence the same relay socket dimensions.
* I don't think the relays produce too much heat to be any problem placing them close to each other. Please fix me if I'm wrong.

Thanks!

[admin]

thanks for your information. the board is good. but this board have two side of relay output teminal. if install into Power Distribution Box. relay controller output wire need go to this board's right green ports. the 17-32 relay outputs' wire need covered all board go through to bottom of box. only have this problem.

   

we are plan to design a new extend relay module, maybe based on 8 channel, 16 channel, 32 channel.
but the most important is we will install manual button on the extend relay board. if smart controller is bad, people can use button for ON/OFF on the board, although KinCony's smart controller will not fail easily.
these are my idea, if you have some suggestions, welcome tell us. we will consider your design idea.

[eladn]

thanks for your information. the board is good. but this board have two side of relay output teminal. if install into Power Distribution Box. relay controller output wire need go to this board's right green ports. the 17-32 relay outputs' wire need covered all board go through to bottom of box. only have this problem.



we are plan to design a new extend relay module, maybe based on 8 channel, 16 channel, 32 channel.
but the most important is we will install manual button on the extend relay board. if smart controller is bad, people can use button for ON/OFF on the board, although KinCony's smart controller will not fail easily.
these are my idea, if you have some suggestions, welcome tell us. we will consider your design idea.

Thanks for the quick response.
If you're looking for suggestions, I would feel much safer to use other load terminals of a higher quality. I don't like the green connectors you currently use - they are not reliable in my opinion. Sometimes the screwing gets worn down (the screw freely spins and does not tighten well over the wire). Most of the fires in electrical boards are caused by loosened screws. For 12V DC control it is fine, but for 230V AC load it might be a real danger. I would be glad to have a product with screws of higher quality, or even without screws at all. For example this terminals block uses screwless push-in wire which is much safer: https://www.wago.com/global/pcb-terminal.../p/253-112

[admin]

thanks for your suggestion, i will feedback to our hardware engineer.
our first KC868-H32 use that teminal (without screws version) , just sometime not easy to fix when two or three wire insert to one hold.

[eladn]

thanks for your suggestion, i will feedback to our hardware engineer.
our first KC868-H32 use that teminal (without screws version) , just sometime not easy to fix when two or three wire insert to one hold.

I see. If a flexible conductor is used, it is possible and a common convention to use "double ferrules" that allows crimping 2 incoming wires into a single terminal head. Here is an example: https://www.aliexpress.com/item/32859025452.html.
BTW, I'm wondering whether inserting two wires into the green terminal (as you suggested) might be also non-safe, as one of the wires might be not tightened well enough. But maybe I'm wrong.

---

[admin]

You're right. But we have checked many big PLC company use by screws version terminal. so we have chosed high quality terminal use for our controller. But we will save your suggestion.

[eladn]

About the 32-channels module with 2 rows of relays (16 relays in each row). If I understand correctly, you stated that their design doesn't comply with your convention to have all the load terminals on a single side (the bottom). Is it possible to design a similar board but with all 32*3 connectors at one side? Maybe it is possible to have 2 connectors rows as you have done in the KC868-H32B?
Thanks,
Elad.

[admin]

yes, this can be done, but maybe we will design one board for 16 channel. if use 32 channel, just use 2pcs boards, the size almost is one board*2.