Overview
The Honeywell DC3003-0-30A is a UDC3000 series universal digital controller designed for precise temperature and process control in industrial automation applications. This 1/4 DIN proportional controller provides flexible input options and adaptive control logic, making it suitable for legacy system upgrades and replacement installations across manufacturing, HVAC, and process industries.
Key Features
- Proportional/Duplex Control: Time-proportional or proportional duplex 3-position step output for precise process regulation
- Autotune Capability: Automatic PID tuning reduces commissioning time and improves control stability
- Multi-Input Support: Accepts thermocouple (TC), RTD, millivolt (MV), and 1-5V signal inputs from field sensors
- Compact 1/4 DIN Panel Mount: Space-efficient form factor suitable for retrofit and OEM panel installations
- VERSA-PRO Platform: Honeywell’s proven control architecture with extensive field history and reliability
Technical Specifications
- Input Types: Thermocouple, RTD (Resistance Temperature Detector), millivolt 0-50 mV, 1-5V DC
- Control Modes: Time proportional or proportional duplex 3-position step
- Output Configuration: Relay or electronic output (dependent on specific model variant)
- Power Supply: 120 VAC, 60 Hz, 10 VA typical (0-30A variant)
- Display: Two-line LCD with parameter and status indicators
- Mounting: 1/4 DIN panel mount (71.1 mm × 71.1 mm × 96 mm depth)
- Weight: Approximately 3.0 lbs
- Series: UDC3000 (VERSA-PRO family)
- Certification: UL/cUL listed (legacy industrial control)
- Operating Environment: Industrial panel-mount installation; temperature range varies per input configuration
Typical Applications
- Process heating and cooling control in manufacturing plants
- HVAC system temperature regulation and setpoint management
- Batch process control in chemical, pharmaceutical, and food processing
- Replacement controller for legacy DCS or standalone control loops
- OEM machine control and oven/furnace temperature setpoint regulation
- Moisture and humidity control systems in industrial environments
Compatibility & Replacements
Compatible With
- Standard industrial 120 VAC, 60 Hz power supplies
- Field-wired thermocouple and RTD sensor inputs (standard industrial sensors)
- Relay, solid-state relay (SSR), or proportional valve actuator outputs
- Legacy Honeywell IACD (Industrial Automation and Control Division) control systems
- Panel mount installations with 1/4 DIN cutout cavity
Replaces / Drop-In Replacement For
- Other Honeywell DC3003 variants with different input ranges (DC3003-0-00A, DC3003-0-10A, DC3003-0-12A configurations)
- UDC3000 proportional control modules with equivalent PID control architecture
- Legacy proportional temperature controllers in industrial process loops
Works With
- Honeywell VERSA-PRO commissioning and diagnostic tools
- Standard industrial control networks and SCADA systems (serial input/output compatible)
- Field-level sensor integration: J, K, T, R thermocouple types; Pt100/Pt1000 RTD
- Legacy proportional control valve actuators and relay-driven solenoid outputs
