TAC Pneumatic Products Catalog

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R471, R472 (2364-200 Series)
Pneumatic-Electric Switches
The pneumatic-electric switches are used in control
systems requiring conversion of gradual air pressure
changes to positive electrical switching actions. The
R471-1 has a single SPDT switch for switching a single
circuit. The R472-1 has two SPDT switches for switching
two separate circuits simultaneously.
Features:
• Fixed-differential P.E. switches permit two-position electrical
switching action from either modulating or two-position
pneumatic signals.
• High current rating: 20 amps non-inductive, 120, 240, 480Vac.
• R471-1 has one SPDT switch.
• R472-1 has two SPDT switches which operate simultaneously.
• May be wall-mounted or panel-mounted where necessary to
keep wiring runs short.
Model Chart
Model No.
Wholesale
Model No.
Description
R471-1 2364-211 Pneumatic-electric relay with (1) SPDT switch.
R472-1 2364-220 Pneumatic-electric relay with (2) SPDT switches.
Specifications
Environment
Ambient temperature limits 32 to 140�F (0 to 60�C).
Relative humidity limits 5 to 95% RH, non-condensing. Avoid areas with excessive vibration or corrosive materials.
Location NEMA 1.
Maximum safe pressure
Connections
30 psig (206.8 kPa). Clean, dry control air only.
Air 3/16 in. (4.76 mm) nipple for 1/4 in. (6.35 mm) O.D. tubing.
Wiring
Setpoint
Screw terminals. 1/2 in. conduit openings on both sides of housing.
R471-1 (2364-211) 2 to 25 psig (13.8 to 172.4 kPa). Differential 2.0 psi (13.8 kPa) nominal, fixed.
R472-1 (2364-220) 4 to 20 psig (27.6 to 137.8 kPa). Differential 2.5 to 3.0 psi (17.2 to 20.7 kPa) nominal, fixed.
Switch action SPDT
Switch rating (each switch) 20 amps non-inductive at 120-240-480 Vac. 1 hp at 125 Vac, 2 hp at 240 Vac.
Mounting Relay may be mounted in any position.
Dimensions 3-11/16 H x 2-1/2 W x 2-7/16 D in. (94 x 64 x 62 mm).
Accessories
Model No. Wholesale Model No. Description
6-532 20-684 Diaphragm.
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