Overview
The Barksdale CDPD1H-H18 is a single-setpoint, housed diaphragm pressure switch engineered for industrial pressure control and monitoring. With an operating range of 4–18 PSI and a maximum pressure rating of 60 PSI, this switch delivers accurate, reliable on/off control in demanding environments. The CDPD1H is designed for pressure control applications requiring tamper proof external adjustment and environments which require water-tight NEMA 4 housings.
Key Features
- NEMA 4 housing with tamper-proof external adjustment dials
- Wirable as normally open or normally closed through 3/4″-14 NPT conduit connection to free leads
- Self-locking set screw adjustment with calibrated dials
- Single diaphragm actuation for stable setpoint retention
- Industrial snap-action contact mechanism for reliable switching
- Accuracy of ±0.5% of range
Technical Specifications
The CDPD1H-H18 combines proven housed-diaphragm design with precision industrial control performance across a broad range of applications. All electrical ratings and pressure specifications meet UL/CSA standards for hazardous and general-purpose use.
Typical Applications
- Hydraulic system pressure monitoring and cut-off control
- Air compressor pressure regulation and unloading
- Process water and industrial fluid pressure sensing
- Equipment protection and high/low limit alarms
- Vacuum and positive pressure dual-function control
Compatibility & Replacements
Compatible With
- Single-pole double-throw (SPDT) circuit control modules
- Industrial pressure monitoring systems (hydraulic, pneumatic, fluid)
- Control relay logic (CRL) and PLC input modules
- Motor starter and contactor circuits up to rated amperage
- DIN rail–mounted automation enclosures
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The CDPD1H-H18 is the single-setpoint variant; confirm your existing switch model (CDPD1H vs. CDPD2H dual-setpoint) before replacement.
Works With
- Pneumatic and hydraulic control circuits
- Standard industrial relay logic and contactor wiring
- PLC discrete input modules (24 VDC logic voltage)
- Motor starters and magnetic contactors
- Industrial process control systems
