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Product Introduction
The Honeywell 10208/1/1 Relay Output Module is a high-reliability industrial I/O component engineered to control external devices such as alarms, solenoids, motors, and relays through electrically isolated relay contacts. Designed to operate within Honeywell’s distributed control systems (DCS), such as the TDC 3000 and related legacy platforms, this module provides secure and robust switching capabilities.
Built for demanding environments, the module ensures safe and precise output operation by incorporating high-quality relays, fault detection, and channel-specific status feedback. Each channel can switch AC or DC loads and is optically isolated to prevent electrical interference, thus protecting both the control system and field equipment. The 10208/1/1 Relay Output Module is widely trusted in safety interlock systems, alarm signaling, motor control loops, and general industrial automation where deterministic relay control is critical.
Technical Specifications
| Parameter | Description |
|---|---|
| Product Name | Honeywell 10208/1/1 Relay Output Module |
| Module Type | Relay-Based Digital Output Module |
| Number of Output Channels | 8 Relay Outputs |
| Output Type | SPST (Single Pole Single Throw), Form A contacts |
| Contact Rating (Resistive Load) | 2 A @ 30 VDC / 2 A @ 250 VAC |
| Relay Contact Type | Mechanical Relay |
| Minimum Switching Voltage | 5 VDC |
| Minimum Switching Current | 10 mA |
| Channel Isolation | Optical and relay-based isolation |
| Switching Frequency | <10 Hz (Mechanical Relays) |
| Diagnostics | Channel status LEDs, contact monitoring |
| Power Supply | Via system backplane |
| Operating Voltage Range | 20–30 VDC (System) |
| Operating Temperature | 0°C to +60°C (32°F to 140°F) |
| Storage Temperature | -40°C to +85°C (-40°F to 185°F) |
| Humidity | 5%–95% RH (non-condensing) |
| Compliance Standards | CE, UL, RoHS, IEC 61010 compliant |
| Mounting | DIN rail or rack-mounted |
| Dimensions (H x W x D) | 38 × 127 × 191 mm |
| Weight | 0.4 kg |
Applications
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Oil & Gas: Controlling solenoid valves, alarms, and safety interlocks.
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Power Generation: Relay switching for turbine protection systems and control panels.
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Chemical Processing: Output control for actuators, heaters, and isolation relays.
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Pharmaceutical Manufacturing: Triggering batch alarms, cleanroom fan units, and motor starters.
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Water Treatment Plants: Pump activation, valve actuation, and system alerts.
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Factory Automation: General relay actuation for industrial machines and control sequences.
Key Advantages
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Reliable Relay Switching: Offers clean and dependable switching for both AC and DC circuits.
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Isolation & Protection: Ensures optical and mechanical isolation for each channel, safeguarding system integrity.
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Channel-Specific LED Indicators: Each relay has a dedicated status light for monitoring and quick diagnostics.
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Wide Load Support: Capable of handling resistive and inductive loads within rated specifications.
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Robust Industrial Design: Built for long-term, continuous operation in electrically noisy and high-vibration environments.
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Seamless Integration: Native support for Honeywell TDC systems ensures compatibility and ease of configuration.
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Fail-Safe Operation: Relay outputs return to a defined state upon fault or system failure conditions.
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Extended Temperature and Environmental Tolerance: Ideal for field enclosures and control rooms alike.
Frequently Asked Questions (FAQ)
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What type of output is provided by the 10208/1/1 module?
It provides relay-based discrete outputs (Form A SPST) suitable for controlling field devices. -
Is the relay contact dry or powered?
The module provides dry contacts—users must supply the power source for the relay circuit. -
Can it handle inductive loads like solenoids?
Yes, within specified contact ratings. External snubber or flyback protection is recommended for inductive loads. -
Does the module provide feedback if a relay fails?
While there’s no internal contact monitoring, channel-level LEDs assist with basic operation status. -
Can this module be used in safety shutdown systems?
Yes, it is suitable for use in non-safety-critical parts of safety shutdown systems, depending on system certification. -
How long is the relay lifetime?
Mechanical relay contacts typically support ~100,000 operations at rated load; higher for lower current switching. -
Is the module compatible with modern DCS platforms like Experion PKS?
Yes, with proper I/O integration, it can be used in both legacy and modern Honeywell systems. -
Does it support hot-swapping?
No. For safety and reliability, the system should be powered down before insertion or removal. -
What kind of field devices can I control with this module?
It can control alarms, solenoids, contactors, signal lamps, and low-power motors. -
Is external power required for relay outputs?
Yes, the field load must be powered externally. The module only closes or opens the circuit.
Related Models in the Same Series
| Model Number | Description | Channels | Contact Type | Voltage Rating |
|---|---|---|---|---|
| 10208/1/2 | Relay Output Module with Feedback | 8 | SPDT (Form C) | 30 VDC / 250 VAC |
| 10209/2/1 | High-Density Relay Output Module | 16 | SPST | 24 VDC |
| 10107/2/1 | Digital Output (Solid-State) | 16 | Transistor (Sink Type) | 24 VDC |
| 10210/1/1 | Relay Output for Redundant Systems | 8 | SPST | 24–48 VDC |
| 10211/1/1 | Latching Relay Output Module | 8 | Latching SPST | 24 VDC |
| 10212/1/1 | Relay Output with Timer Function | 8 | SPST | 30 VDC / 250 VAC |
Popular Honeywell Modules (Same Brand)
| Model Number | Module Type | Description | Channels | System Platform |
|---|---|---|---|---|
| CC-PDIL01 | Digital Input | High-density input for Experion | 32 DI | C300, Experion PKS |
| CC-TAOX01 | Analog Output | Precision analog output module | 8 AO | Universal I/O |
| CC-TDIL01 | Digital Input (Redundant) | Redundant DI for safety-critical systems | 16 DI | Redundant C300 |
| CC-PAOH01 | Analog Output | High-speed analog output module | 8 AO | Process Environment |
| MC-PD1X02 | Mixed Digital I/O | 8 DI / 8 DO combination for compact I/O | 16 I/O | Modular Applications |
| CC-PDOB01 | Digital Output (Relay) | 16-channel relay output module | 16 DO | Honeywell Experion |
