MC-TDOY22 HONEYWELL

HONEYWELL MC-TDOY22 Relay Input Module

Brand：HONEYWELL Model number：MC-TDOY22

Country of origin: United States Product weight：0.4kg

HS code：8517623990

Product Details：

Product Dimensions：

A Honeywell relay module is a device that provides a dry-contact output for activating a variety of auxiliary devices such as fans, dampers, control equipment, or fire bells and strobes. While the name "input module" can be confusing, these specific products from Honeywell often have the dual functionality of both monitoring inputs from the field (like a switch) and providing a relay output. The module receives a signal or command from a central control panel or fire alarm control panel and then, in turn, closes or opens an internal relay. The relay's contacts are then wired to the device that needs to be controlled.

Functionality: The primary function is to provide a controllable on/off switch for a wide range of devices. This gives the central control panel the ability to activate and deactivate equipment based on a pre-programmed logic or an alarm condition. They provide a Form C contact, meaning they have a common, normally open, and normally closed terminal, offering flexibility in wiring.
Key Features:

Addressability: Most of these modules are intelligent and addressable, meaning they have a unique address on a communication loop. This allows the control panel to specifically command each module without a separate dedicated wire for every single device.
Status Indicators: They typically have an LED that provides visual feedback, such as blinking green for normal operation and turning solid red when activated.
Flexible Programming: The relay's behavior is completely programmable and can be mapped to various conditions or zones within the system.
Easy Installation: Features like rotary address switches and SEMS screws with clamping plates simplify installation and wiring.

Product Parameters

The specific parameters of a Honeywell relay module can vary widely by model, but here are some common specifications:

Operating Voltage: Typically operates on the voltage of the control loop, such as 15-32 VDC.
Relay Contact Ratings: These ratings are crucial and specify the maximum voltage and current the relay contacts can handle. For example, a module might be rated for 3.0A @ 30VDC, 0.9A @ 125VAC, etc.
Current Draw: The standby and alarm current draw, measured in milliamps, indicates the module's power consumption.
Dimensions: Physical size and weight for mounting in standard junction boxes or enclosures.
Wiring: The type of wiring supported, such as 12 to 18 AWG, and whether it supports Class B or Class A wiring.
Operating Environment: The acceptable temperature and humidity range for reliable operation.

Product Advantages

Honeywell relay modules offer several key benefits that make them a preferred choice in their respective applications:

Reliability: Engineered for reliable performance and long service life in critical systems like fire alarm and security systems.
Versatility: The Form C relay contacts allow for both normally open and normally closed applications, providing great flexibility.
Cost-Effective: Their modular and addressable design allows for more efficient wiring, as multiple devices can be controlled from a single pair of wires on a loop, reducing overall installation costs.
Advanced Diagnostics: The status LED provides a quick visual check for technicians, simplifying troubleshooting.
Integration: Designed to seamlessly integrate with Honeywell's own fire alarm and security control panels.

Important Considerations

Before selecting and installing a Honeywell relay module, keep these points in mind:

Compatibility: Ensure the module is compatible with your specific Honeywell control panel model. An intelligent addressable module will not work with a conventional, non-addressable panel.
Contact Ratings: Always verify that the relay's contact ratings (voltage and current) are sufficient for the load you plan to control. Exceeding these ratings can damage the module and create a safety hazard.
Wiring: Adhere strictly to the manufacturer's wiring diagrams and local electrical codes. Incorrect wiring can lead to system failures or false alarms.
Power Supply: Confirm that the control panel's power supply can support the total current draw of all connected modules and field devices.

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