Skip to main content
Press Enter
Starting at $63.20USD
Configure
Dwyer

PDL Paddle

Single or triple vane paddles for PLS series level switch

Starting at
$63.20USD
Have questions? We're here to help!
Have questions? We're here to help!
Configure

The Series PLS Paddle Level Switch uses a 1 rpm synchronous motor to rotate a paddle and sense the presence of dry powder or bulk materials. Movement is impeded when product comes into contact with the paddle and the resulting motor torque activates the output switches and stops the motor. The PLS is designed with the industry standard 1-1/4" male NPT connection and mounting flanges.

 • Magnetic drive that isolates and completely seals the control head from the process and environment preventing material or dust from entering the control head.

• Motor shuts-off when paddle stalls increasing motor life, preventing motor burnout, and decreasing power usage.
• Slip clutch design enabled by the magnetic drive that prevents damage to motor and drive mechanism from sudden or excessive loading on the paddle.
• Status indication light on weatherproof models.
• Screw cover on the enclosure for easy access with no worries about losing bolts or screws.
• Modular design to allow field installation of any paddle, flanges, shaft extensions, or shaft guards.
• Flexible coupling available for protection of the paddle and drive from side loads, surges or impacts. Recommended for top mount applications with shaft extension and applications with large or heavy materials.
Compliance:cUL, UL approved as an auxiliary device or as an auxiliary device for hazardous locations.
Weight:Control head only: 4 lb (1.81 kg).
Time Delay Relay Option:Five field adjustable ranges from 0-1 to 0-31 minutes. (RL option not available, DPDT option not available with 230 VAC time delay).
Service:Dry powder or bulk materials compatible with wetted materials.
Sensitivity:Minimum material density of 5 lb/ft³ (80 kg/m³), maximum of 200 lb/ft³ (3200 kg/m³).
Wetted Materials:Paddles: 316 SS. Exposed Shaft: 316 SS. Shaft Seal: PTFE. Mounting Boss: Aluminum. Flexible Coupling: 316 SS. Mounting Flanges: Carbon Steel or 316 SS. Shaft Extension and Shaft Guards: Galvanized Steel or 316 SS.
Temperature Limits:Standard Construction: Process: -40 to 300°F (-40 to 148.9°C), Ambient: -40 to 185°F (-40 to 85°C); High Temperature: Process: -40 to 500°F (-40 to 260°C), Ambient: -40 to 185°F (-40 to 85°C).
Pressure Limit:30 psig (2.07 bar) maximum for .5 micron or larger material.
Power Requirement:Select by part number: 110-120 VAC, 230 VAC, 24 VAC, 48 VAC, or 12 VDC.
Power Consumption:Weatherproof models: 5 watts, Explosion-proof models: 3 watts.
Enclosure:Aluminum, powder coated.
Enclosure Rating:Weatherproof (W, WH construction): NEMA 4X, Explosion-proof (E, EH construction): NEMA 4X and rated for Class I, Div. 1 & 2, Groups C & D, Div. 1 & 2, Groups E, F, & G.
Switch Type:SPDT or optional DPDT snap switch.
Electrical Rating:15 A @ 120.
Electric Connections:Screw terminals.
Conduit Connection:3/4" female NPT.
Process Connection:1-1/4" male NPT. Optional flange.
Indication Light:Red LED that activates when switch is made or when switch is not made with RL option (not available on Explosion-proof models).
• Mining
• Food and beverage
• Silos
• Hoppers

Request a Calibration Quote

We’re here to make calibration easy. Request a quote today and let our team give you the care, precision, and service you can trust.
Learn more

Browse By Brands

Uncover the brands that set the standard for quality and dependability in every industry we serve.
Learn more