Schneider Electric PC-301 Data Sheet

Application

For low or line voltage control of static, velocity or total pressures, or differential static or total pressures of air and non-combustible gases only.

Specifications

Setpoint:

Factory Set, 0.07" (1.8 mm) W.C.

Field Adjustable, 0.07 to 1" (1.8 to 25.4 mm) W.C. Sensing Element: Neoprene diaphragm. Differential: 0.04" (1 mm) W.C. at minimum setpoint

(3 mm) W.C. at maximum setpoint.

Environment:

Ambient Temperature Limits,

Shipping, -40 to 140°F (-40 to 60°C).

Operating, 35 to 140°F (0 to 60°C).

Humidity, 5 to 95% R.H., non-condensing.

Locations, NEMA Type 1 indoor only. Maximum Pressure: 12" (305 mm) W.C. Electrical Switch: Snap action SPDT.

Ratings, See Table-1.

Connections, Code screw terminals Case: All metal with 1/2" conduit opening. Mounting: In vertical position on any surface free of

vibratio

Dimensio

mm x 121 mm x 11

Accessories

AP-302 Static probe for turbulent air AP-305 Static probe for low actuating pressure AT-208 Duct mtg. kit for remote probes other than

ns: 5-1/8" high x 4-3/4" wide x 4-3/8" deep (130

1 mm).

AP-302 or

AP-305

to 0.1"

Pre-Installation

Inspection

Visually inspect the carton for damage. If damaged, notify the appropriate carrier immediately. Visually inspect the device for obvious damage due to shipping. Return damaged parts to place of purchase.

Required Installation Items

• Wiring or piping diagrams

• Appropriate screwdrivers (not provided) for mounting

screws (provided)

• Conduit fittings (not provided)

PC-301

Differential Pressure Switch

General Instructions

Installation

Caution:

1. Installer must be a qualified, experienced technician.

2. Disconnect power supply before installation to prevent electrical shock.

3. Make all connections in accordance with the wiring diagram, and in accordance with national and local electrical codes. Use copper conductors only.

4. Avoid locations where excessive moisture, corrosive fumes or vibrations are pre intended for indoor use primarily to provide a degree of protection against contact with the enclosed equipment.

5. For use with air or non-combustible gases only.

Table-1 Maximum Electrical Switch Ratings

Full Load

Vac

24V -- -- 60 --

120V 6.25 37.5 300 --

240V 3.1 18.6 300 --

277V 2.7 16.2 300 10

Amps

Locked

Rotor Amps

sent. NEMA 1 devices are

Pilot Duty

(VA)

Non-Inductiv

Amps

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