NORGREN 33D, PRESSURE SWITCH 0863222 P CODE B3274 VER C
- Pneumatics -1 to 16 bar Fluid: filtered compressed air, lubricated or unlubricated, neutral gases.
- Hydraulics / Allfluid 0 to 630 bar Fluids: gaseous, liquid, aggressive and neutral.
- relative pressure -1 to 630 bar Electronic Pressure Switch for pressure monitoring and control functions
- Display of system pressure (pressure unit Bar, Psi, Mpa programmable)
- Compact and robust design
- Easy programming of set points and additional functions
- Economic solution for industrial applications
- Electronic lock
- Switching status indicated by LED
- Standard M12x1 el. connection (IP 65)
- With digital and analogue output
- UL-Approval
NORGREN 33D Series Pressure Switch
Part Number: 0863222
P-Code: B3274
Version: C
Overview
The NORGREN 33D is a compact, robust, and highly reliable electromechanical pressure switch designed for monitoring and controlling pressure in pneumatic systems. The part number 0863222 with P-Code B3274 and Version C specifies a particular configuration of this versatile product line. It acts as a safety or control device, automatically opening or closing an electrical circuit when a specific pre-set pressure is reached.
Key Features
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Compact Design: Saves space in control panels and on machinery.
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High Reliability: Built with quality materials for long service life and consistent performance in industrial environments.
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Micro-Switch Technology: Utilizes a precise snap-action micro-switch for clear and reliable electrical switching.
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Single Setting Adjustment: Allows for easy calibration to the required set point.
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Good Media Compatibility: Suitable for use with compressed air and other non-aggressive gases.
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Dual Electrical Connection Options: Typically offers both screw terminal and plug connector versions for flexible installation (the exact type for this P-Code should be verified on the datasheet).
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IP65 Enclosure Rating (Typical): Protects against dust and low-pressure water jets, making it suitable for harsh industrial environments.
Typical Applications
NORGREN 33D pressure switches are commonly used in a wide range of industrial automation and pneumatic applications, including:
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Compressor control and monitoring
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Pneumatic press safety monitoring
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Process automation
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Packaging machinery
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Fluid power systems
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HVAC systems (air handling units)
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Providing feedback signals to PLCs for system status
Technical Specifications (General for 33D Series)
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Electrical Rating: Typically up to 10A, 250V AC.
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Switch Function: SPDT (Single Pole, Double Throw) – This provides both Normally Open (NO) and Normally Closed (NC) contacts.
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Pressure Connections: Common port sizes are G1/8″ or G1/4″ BSP.
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Pressure Ranges: The 33D series covers various ranges (e.g., 0.5 – 10 bar, 2 – 16 bar, etc.). The specific range for P-Code B3274 is critical and must be confirmed.
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Adjustment: Manual adjustment via a rotary knob or screwdriver slot.
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Housing Material: Typically thermoplastic or metal, depending on the variant.
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Diaphragm Material: Typically NBR or FKM (Viton).











