Allen-Bradley 836-C7 Pressure Control Switch

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Allen-Bradley 836-C7 Pressure Control Switch Product Information

Product Description

Detailed Parameters

• Pressure Range: Adjustable pressure range 0.2~7 bar (3~100 psi), supporting positive pressure monitoring; compatible with non-corrosive fluids such as air, water, and oil.
• Contact Configuration: 1 set of single-pole double-throw (SPDT) contacts; rated electrical parameters: 125/250V AC, 10A (resistive load), 3A (inductive load); contact life ≥100,000 operations.
• Accuracy and Hysteresis: Set point accuracy ±2% full scale; adjustable hysteresis (default ~5%~10% full scale), pressure trigger range can be fine-tuned via knob.
• Interface and Installation: Equipped with 1/4 NPT female thread pressure interface, supporting pipeline installation; electrical connection uses screw terminals, adapting to 14~22 AWG wires.
• Environmental Adaptability: Operating temperature -40℃~85℃, storage temperature -54℃~121℃, relative humidity 5%~95% (non-condensing); protection class NEMA 4X (IP66), resistant to flushing and harsh environments.
• Structural Materials: Housing made of die-cast aluminum (with anti-corrosion coating), internal sensing element of copper alloy, seal of nitrile rubber (NBR), compatible with most industrial media.
• Certification Standards: UL, CSA, CE certified; compliant with IEC 60947-5-1 industrial control equipment standards; suitable for hazardous locations Class I, Div 2.

Advantages and Features

• Wide Pressure Adjustment Range: 0.2~7 bar adjustable range covers pressure control needs of small and medium industrial equipment, such as pneumatic tools, cooling systems, and small pump stations.
• High-Protection On-Site Installation: NEMA 4X (IP66) protection allows direct installation in outdoor or humid environments (e.g., car wash equipment, food washing areas), resisting water splashes, dust, and corrosive gases.
• Reliable Mechanical Action: Adopts diaphragm or piston-type sensing structure with fast response (action time ≤50ms), stably triggering in vibration environments (≤10g acceleration) and reducing false actions.
• Easy Installation and Debugging: Pressure setting is completed via an external knob without special tools; 1/4 NPT interface is compatible with standard pipe fittings, and electrical terminals facilitate quick connection.
• Durable Design: Anti-corrosion housing and oil-resistant seals extend service life; stable operation in hydraulic oil, compressed air, and other media, with mean time between failures (MTBF) ≥10⁵ hours.

Application Fields

• Pneumatic System Control: In factory compressed air pipelines, triggers air compressor startup when pressure is below 3 bar and shuts it down when above 7 bar, maintaining stable system pressure.
• Cooling Circulation Systems: Monitors pipeline pressure of chillers, alarms when below 0.5 bar (indicating water shortage), preventing pump dry running damage.
• Food Processing Equipment: Used for pressure control in sauce delivery pipelines, avoiding pipe rupture or material overflow due to excessive pressure; compliant with FDA food contact material standards.
• Car Wash Equipment: In high-pressure cleaners, cuts off motor power when pump pressure exceeds 6 bar to prevent equipment overload, while withstanding high-pressure water flushing.
• Small Water Treatment Devices: Controls inlet pressure of reverse osmosis (RO) equipment, ensuring operation in the optimal pressure range of 1~3 bar, improving water quality filtration efficiency.

Notes

• Confirm medium compatibility during installation; avoid use with strongly corrosive fluids (e.g., acids, alkalis); special seals (e.g., Viton) must be replaced if necessary.
• Use appropriate sealing tape (e.g., PTFE tape) during pressure interface installation to prevent leakage; control torque at 15~20 Nm to avoid thread damage.
• Reserve sufficient hysteresis when setting pressure (e.g., stop pressure 10% higher than start pressure) to prevent frequent equipment start-stop (e.g., "ping-pong effect" in air compressors).
• Regularly (every 6 months recommended) check contact status and sealing performance; clean pressure interface filters in dusty environments to prevent clogging from affecting sensing accuracy.
• Match load type during wiring; inductive loads (e.g., motors) require parallel surge suppressors to avoid contact arcing damage and extend contact life.

The structure and details of the product：

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