Overview
The Barber Colman 120 Series Enclosure is an industrial-grade analog temperature controller engineered for precise setpoint control in heating and cooling applications. Designed for HVAC systems and refrigeration equipment, this 0-25°F range variant maintains tight temperature regulation across demanding industrial environments. The 120 Series is built with robust enclosure construction and features flexible control algorithms suitable for both direct-acting and reverse-acting applications.
Key Features
- Analog setpoint temperature control with multiple control modes (On/Off, Proportional, PI, PID)
- Flexible input options supporting thermocouple and RTD sensors
- Multiple output configurations including relay and solid-state relay outputs
- 120 VAC, 50/60 Hz operation with 10 Amp rated capacity
- Enclosure-mounted design for easy panel integration
- Suitable for HVAC ducts, tanks, and liquid line applications
Technical Specifications
| Input Voltage | 120 VAC |
| Frequency | 50/60 Hz |
| Output Capacity | 10 Amp rated |
| Temperature Range | 0–25°F |
| Control Type | On/Off, Proportional (P), PI, PID |
| Sensor Input Types | Thermocouple (J, K, T, E), RTD (Pt100, Pt1000), Analog signals |
| Control Outputs | Relay, Solid-State Relay (SSR), Analog Voltage/Current |
| Form Factor | Enclosure-mounted analog controller |
| Series | 120 Series |
| Manufacturer | Barber Colman (Invensys) |
Typical Applications
- HVAC ductwork temperature regulation
- Commercial refrigeration systems
- Industrial process cooling and heating loops
- Tank and vessel temperature control
- Liquid line temperature monitoring and setpoint adjustment
Compatibility & Replacements
Compatible With
- Standard 120 VAC industrial control panels
- Thermocouple and RTD sensor networks
- Relay and SSR output modules
- HVAC and refrigeration control systems
- Analog signal instrumentation
Replaces / Drop-In Replacement For
- Other Barber Colman 120 Series variants with similar enclosure form factors and 0–25°F range
- Legacy analog setpoint temperature controllers in HVAC applications
Works With
- Thermocouple and RTD sensor types (J, K, T, E thermocouples; Pt100, Pt1000 RTDs)
- Relay and solid-state relay control outputs
- Analog voltage and current signal loops (4–20 mA, 0–10 VDC)
- Standard industrial control wiring and configurations
