PT-Series NEMA 7/9 Explosion Proof Temperature Switch
The Ashcroft® PT NEMA 9 explosion proof temperature switch is designed for use in harsh applications where hazardous approvals and uncompromising safety is required. The PT switch proven technology provides a stable, long-lasting product that can be used over a wide range of temperatures. It is field proven for extreme reliability and is ideal for pressure control, shutdown or alarm operations in hazardous locations.
Key Features:
- Adjustable setpoints from 15%-100% of range (-40 to 750°F)
- Fixed or adjustable deadbands
- Single or Dual adjustable set points
- Explosion-proof enclosure
- Dual chamber design, allows for safe field calibration of switch even with the power connected
- Direct or remote reading thermal systems
- Wide switch element selection
- UL and CSA hazardous approvals
- CE approved
Applications:
Process Market:
- Refineries
- Chemical and Petrochemical Plants
- Steel Mills
- Water and Sewage Treatment Facilities
Industrial Market:
- Pumps, Compressors and Turbines
- Boilers and Burners
- Reverse Osmosis Systems / Filters
Specifications
Certifications & Approvals
Data Sheets & Instruction Manuals
Drawings & Product/Technical Information
Setpoint Repeatability (Accuracy)
±1% of span (Additional setpoint shift of ±1% of range per 50°F from initial setpoint set at 70°F typical)
Setpoint
Dual setpoint, fixed deadband
(Setpoints - factory set or field adjustable)
Single setpoint, adjustable deadband
Single setpoint, fixed deadband
Deadband
Fixed or adjustable
Enclosure Ratings
NEMA 7/9, IP66
Enclosure Material
Epoxy coated aluminum
Pressure Connection
Direct Mount: ½ NPT Male
Remote Mount: ½ NPT Male Bushing (XBX) (OPT.)
Electrical Termination
3/4 NPT Female conduit connection
½ NPT Female, M20 X 1.5 (OPT.)
Direct Mount
Stem lengths from 2¾˝ to 24˝
Remote Mount
Capillary lengths from 5´ to 25´ (5 ft. increments) Consult Factory for longer lengths
Wetted Material
Direct Mount: 316 Stainless steel
Remote Mount: Bulb capillary: 316 Stainless steel
Spiral armor: 302 Stainless steel
Pressure Ranges
-40°F to 60°F through 500°F to 750°F
