- Home
- Crestron shop
- Lighting control
- ZUMMESH-CCO
Crestron part number ZUMMESH-CCO
The Crestron ZUMMESH-CCO is the Zūm Contact Closure Output, a small module that adds a low-voltage SPDT form C contact closure to a Zūm commercial room lighting system. The relay follows the room's occupancy or vacancy sensors, so HVAC or other equipment can be switched with occupancy to save energy.
Price on request
The price isn't hidden. Crestron asks its dealers to share it with you directly rather than publish it online, so tap Request a quote and we'll send it straight to you.
Prefer to talk? Dublin 01 906 9326 Cork 021 202 8107 WhatsApp us
Need it installed? Our Crestron certified engineers install, set up and programme everything we supply. A 4 hour visit is €440 and a full day €880, plus VAT.
About the Crestron ZUMMESH-CCO
The contact closure is controlled by the occupancy or vacancy sensors in the room, and the relay engages when the room is occupied. This lets HVAC equipment, or other equipment, follow the same occupancy information that controls the lighting, which helps save energy. The low-voltage SPDT form C relay is rated 1A at 30V DC or 24V AC.
It snaps onto a Zūm J-Box Load Controller, such as the ZUMMESH-JBOX-16A-LV, ZUMMESH-JBOX-20A-SW or ZUMMESH-JBOX-20A-PLUG, or onto the ZUMMESH-JBOX-PSU accessory power supply. The host J-Box device provides both power and wireless communications for the module. The ZUMMESH-JBOX-SIM sensor integration module can also accommodate a Contact Closure Output.
The module is UL 2043 listed for installation in an environmental air handling space and meets the UL 916 standard for energy management equipment. When replacing one, note the J-Box device it is fitted to, since that host supplies its power and wireless link. Crestron's Zūm Lighting Control System Setup Guide (Doc # 7957) has further information.
Key features
- Adds a low-voltage SPDT form C contact closure to a Zūm system
- Relay activates and deactivates with room occupancy and vacancy
- Rated 1A at 30V DC or 24V AC
- Enables HVAC integration to save energy
- Snaps onto a Zūm J-Box Load Controller or ZUMMESH-JBOX-PSU
- Power and wireless communications from the host J-Box device
- UL 2043 listed; meets UL 916
ZUMMESH-CCO specifications
| Output | Low-voltage SPDT form C contact closure (relay) |
|---|---|
| Rating | 1A @ 30V DC or 24V AC |
| Control | Relay engages when the room is occupied, controlled by the room's occupancy or vacancy sensors |
| Host | Snaps onto a Zūm J-Box Load Controller or ZUMMESH-JBOX-PSU Zūm J-Box Accessory Power Supply |
| Power and communications | Provided by the host Zūm J-Box device |
| Standards | UL 2043 listed for environmental air handling spaces; meets UL 916 for energy management equipment; meets ASHRAE 90.1 |
Part numbers on this page
| Part number | Version | Price | Add |
|---|---|---|---|
| ZUMMESH-CCO | Standard | On request |
Where the ZUMMESH-CCO is used
Works with the ZUMMESH-CCO
Crestron installed by 1Install
We supply, install and programme Crestron in homes and businesses across Ireland. These photos are from our own installations. See more in our projects, or budget a whole system with our Quote Builders for homes and meeting rooms.



Questions about the Crestron ZUMMESH-CCO
What is the Crestron ZUMMESH-CCO?
It is the Zūm Contact Closure Output, a small module that adds a low-voltage SPDT form C contact closure to a Zūm commercial room lighting system. The relay is controlled by the room's occupancy or vacancy sensors, which lets the Zūm system integrate with an HVAC system or other equipment.
How does the ZUMMESH-CCO relay operate?
The contact closure is controlled by the occupancy or vacancy sensors in the room. When the room is occupied, the relay engages, and it activates and deactivates based on room occupancy and vacancy. The SPDT form C relay is low-voltage and rated 1A at 30V DC or 24V AC.
What does the ZUMMESH-CCO attach to?
It snaps onto a Zūm J-Box Load Controller or a Zūm J-Box Accessory Power Supply (ZUMMESH-JBOX-PSU), and that J-Box device supplies its power and wireless communications. The ZUMMESH-JBOX-SIM sensor integration module also has accommodation for a Contact Closure Output.
What equipment can it switch?
Crestron describes it as a way to integrate a Zūm lighting system with an HVAC system or other equipment, so that equipment can respond to room occupancy and save energy. The output is a low-voltage SPDT form C contact rated 1A at 30V DC or 24V AC, so check the input rating of the equipment being switched.
What standards does it meet?
Crestron lists the module as UL 2043 listed for installation in an environmental air handling space. It also meets the UL 916 standard for energy management equipment and ASHRAE 90.1 energy efficiency standards, which is relevant when occupancy-based HVAC control forms part of an energy strategy.
How much is the Crestron ZUMMESH-CCO?
Crestron asks its dealers to give the price of the ZUMMESH-CCO directly rather than publish it online. Add it to your quote list and we will send you a written quote, with delivery, and installation and programming if you need them.
Can 1Install supply, install and programme the ZUMMESH-CCO?
Yes. 1Install is an authorised Crestron Elite Partner with offices in Skerries, Co. Dublin and Cork. We can supply the ZUMMESH-CCO on its own, or install, set up and programme it as part of your system. Installation visits are €440 for 4 hours or €880 for a full day, plus VAT and travel.
Does the ZUMMESH-CCO come with a warranty?
Yes. Everything we supply is new, genuine Crestron with Crestron's standard warranty. If the ZUMMESH-CCO develops a fault, contact us and we will handle the claim with Crestron. If we installed it, our workmanship is guaranteed for the lifetime of the system.
Is the ZUMMESH-CCO in stock?
We order Crestron for each quote, so availability depends on Crestron's stock at the time. We check it before we quote and put the expected delivery date on your quote, so you know where you stand before you pay.
Can I buy the ZUMMESH-CCO without installation?
Yes. We supply Crestron to end users, with or without installation. Like most Crestron devices of this type, it needs setting up or programming before it works in a system, and we can quote for that too.
More from Lighting control
-
CLWI-DIMUEX
Universal Phase In-Wall Dimmer, 230VAC
Price on request Choose version -
CLWI-DIMUNEX
Universal Phase In-Wall Dimmer with Neutral Wire, 230 VAC
Price on request Choose version -
CLWI-SWEX
In-Wall Switch, 230VAC
Price on request Choose version -
CLCI-DIMUEX
In-Ceiling Dimmer, infiNET EX Wireless, 230VAC
Price on request -
CLXI-2DIMU8
8 Channel Universal Dimmer Module, 2 Feeds, 230V
Price on request -
DIN-1DIMU4
4 Channel Universal Dimmer, 1 Feed, DIN Rail Mount
Price on request