Addressable 230V Relay I/O Unit – CMIO353

An extensive range of interfaces are available to support the Eaton range of control panels, providing solutions for most design requirements.

The 230V ac relay unit (CMIO353) enables simple interfacing between the fire system and other equipment such as nurse call systems or access control systems.

The ability of the output unit to switch mains also makes the unit ideal for plant control or mains powered door holders. The input is monitored for open and short circuits therefore can be used for fire input applications such as monitoring sprinkler flow switches.


Additional information
Order Code




Product Type

Addressable Interfaces

Contact me about this Product


No hard addressing required


Cable entry can be top, bottom or side

Let the relay unit do the talking

Designed for efficiency, the CMIO353 can be used in a wide range of both fire and non-fire applications. The module achieves simplified interfacing between the fire system and other equipment with a one wire connection. It can also be used as a fire signal input such as from a sprinkler flow switch.

Connect Eaton fire systems to plant control, nurse call systems or door retainers

The CMIO353 output unit has been designed with the ability to switch mains, which makes the unit ideal for plant control and nurse call systems. When the unit is paired with Eaton’s door retainers, the unit can automatically close doors with a self-closing mechanism in case of emergencies such as a fire alarm activatio

Benefits and Features

• Soft addressed
• Integral short circuit isolator
• Single address
• Mains rated relay unit
• Input monitored for open and short circuits
• Quick and simple to install
• No hard addressing required (Plug and play)
• Achieves simplified interpanel interfacing


TEL: 254-774-211313

Start typing to see posts you are looking for.
Set your categories menu in Theme Settings -> Header -> Menu -> Mobile menu (categories)

Shopping cart

Scroll To Top