Honeywell C6097 Series Pressure Switches (C6097A2210/A2110/A4210/A1079/B1119)
Brand: Honeywell
Type: Gas / Air Low-Pressure Safety Switch (Diaphragm Type, SPDT Contacts)
Core Application: Monitors positive, negative, or differential pressure of natural gas, LPG, air, etc.; used for safety interlocking and protection in burners, boilers, and HVAC fans.
Model Overview and Key Parameters
1. C6097A2110 (Low-Pressure Type; Actuates on Pressure Drop)
Pressure Range: 1.0 ~ 10 mbar
Max. Proof Pressure: 200 mbar
Operation Characteristic: Opens circuit when pressure falls below the setpoint (Type A: Falling)
Connection: Rp1/8 Internal Thread; Electrical: Screw Terminals
Applications: Ultra-low gas pressure monitoring, fan low-pressure protection.
2. C6097A2210 (Low-to-Medium Pressure Type; Actuates on Pressure Drop)
Pressure Range: 2.5 ~ 50 mbar
Max. Proof Pressure: 300 mbar
Operation Characteristic: Opens circuit when pressure falls below the setpoint
Connection: Rp1/8; Electrical: Screw Terminals
Applications: General gas pressure monitoring, boiler/burner safety interlocking.
3. C6097A4210 (Medium-Pressure Type; Actuates on Pressure Drop; M16 Wiring)
Pressure Range: 2.5 ~ 50 mbar
Max. Proof Pressure: 500 mbar
Operation Characteristic: Opens circuit when pressure falls below the setpoint
Connection: Rp1/8; Electrical: M16×1.5 Cable Gland (Splash-proof)
Applications: Industrial combustion equipment, outdoor/damp environments (IP54). Honeywell C6097A4210 Pressure Switch
4. C6097A1079 (Imperial, Medium-to-High Pressure Type; Auto-Reset)---discontinued
Pressure Range: 12 ~ 60 in. WC (approx. 30 ~ 150 mbar)
Max. Proof Pressure: 60 in. WC
Operation: Opens circuit when pressure drops below setpoint; Auto-reset
Connection: 1/4 NPT; Electrical: Screw terminals
Applications: North American standard burners; High-pressure gas/air monitoring.
5. C6097B1119 (Medium Pressure Type; Actuates on Rising Pressure)
Pressure Range: 3 ~ 21 in. WC (approx. 7.5 ~ 52.5 mbar)
Max. Proof Pressure: 21 in. WC
Operation: Opens circuit when pressure rises above setpoint (Type B: Rising pressure)
Connection: 1/4 NPT; Electrical: Screw terminals
Applications: High-pressure gas overpressure protection; Blower high-pressure/stall protection.
Common Core Features
Protection Class: IP54 (Dust-proof and splash-proof)
Contact Rating: 24~250 VAC, 5 A (Resistive), SPDT (Single-Pole Double-Throw)
Media Temperature: -15°C ~ +80°C; Ambient Temperature: -15°C ~ +60°C
Certifications: UL, FM, EN 1854, CE (Gas Appliances Directive)
Adjustment: Top-mounted knob with mbar/in. WC scale, protected by a transparent cover
Reset Method: Types A/B typically feature auto-reset; select models include a manual reset lock.
Type A vs. Type B (Key Differences)
C6097A××××: Actuates on falling pressure (Low-pressure protection; e.g., insufficient gas supply, blower failure)
C6097B××××: Actuates on rising pressure (High-pressure protection; e.g., gas overpressure, blower overload) Selection Recommendations
Low-Pressure Gas / Fan Protection → A2110 (1–10 mbar)
Standard Burner Safety Interlock → A2210 (2.5–50 mbar)
Industrial / Humid Environments → A4210 (M16 Wiring)
North American Equipment / High Pressure → A1079 (12–60 in.WC)
Overpressure / High-Pressure Protection → B1119 (3–21 in.WC)