NPA-Series NEMA 4 Electronic Pressure Switch
The AshcroftĀ® NPA Watertight pressure switch was designed to satisfy challenging applications requiring high cycle life with high current switch functionality. This design incorporates a transducer that uses proven thin film technology to trigger a high quality relay, making this an extremely repeatable, reliable and long lasting switch. This switch is ideal for use with pressure control, shutdown or alarm operations.
Key Features:
- Pressure ranges up to 20,000 psi
- Incorporates Ashcroft’s thin film sensing technology which provides repeatability and durability
- Multi-turn potentiometers allow easy setpoint and deadband adjustments
- Relay switch status indication light
- SPDT 10 amp relay with optional 4-20 mA output
- Designed for high cycle life ā„ 10 million cycles
- CRN approved
Applications:
Process Market:
Pipelines
Industrial Market:
Machine Tools
Injection Molding Machines
Presses
Pumps
Turbines and Compressors
Specialized OEM Equipment
Process Applications:
Hydraulic Systems
Product Information
Specifications
- Accuracy
- Ā±1% of full span
- Setpoint Repeatability (Accuracy)
- Ā±0.50% full scale
- Switch output
- SPDT
- SPDT 10 Amp Relay Optional 4-20mA output (requires isolated 24 Vdc power supply)
- Setpoint
- Single setpoint
- Deadband
- Adjustable
- Enclosure Ratings
- NEMA 3, 4, 4X and 13 (IP65)
- Enclosure Material
- Epoxy coated aluminum
- Pressure Connection
- 1/8 NPT Male
- 1/4 NPT Male
- 1/8 NPT Female
- 1/4 NPT Female
- 1/2 NPT Male
- 1/4 Aminco Female
- 7/16-20 SAE Female
- 1/2 NPT Female
- Electrical Termination
- 3/4 NPT Female
- Diaphragm/Actuator Material
- 17-4PH stainless steel
- Pressure Ranges
- 60 thru 20,000 psi
- Ambient Temperature Range
- -20Ā°F to 160Ā°F (-29Ā°C to 73Ā°C)
- Process Temperature
- -20Ā°F to 160Ā°F (-29Ā°C to 73Ā°C)
Contact Ashcroft
Ashcroft is a trusted source for pressure, temperature, and test instruments around the world. Learn more about how we can help you protect your people, processes, and profits.