NEW!

PRESSURE
PSI Cleveland Controls Adjustable Setpoint-Air Differential Pressure
Switches w/Manual Reset
AFS-MR Series
Description
The Cleveland Controls AFS-460 Series Adjustable
Differential Pressure Switches are general purpose
adjustable differential pressure switches with a manual reset
feature that requires operator intervention whenever actuated.
They can be used to sense positive, negative, or differential
air pressure in HVAC and Energy Management applications
that require operator interface. The AFS-460 Series features
a manual reset button to close the switch following actuation.

Features
• Manual reset (Model AFS-460)
• Adjustable set point
• For static or differential pressure
• 15A switch rating
• UR, CSA, FM approved C US
• Two-year warranty

Application
AFS-MR Series
• Proving fan status
• Monitoring filter for excess pressure drop
• Monitoring duct static pressure
• Proving air flow
• Monitoring damper status

Specifications
Relay Type Max Operating Pressure
AFS-460, 460-112 SPST -NC (Proof) 13.85"WC (3.45 kPa)
PRESSURE

AFS-DSS (2) SPST -NC Operating Temperature -40° to 180°F (-40° to 82°C)
AFS-460-136/137 DPDT Operating Humidity 10 to 90% Non-condensing
Relay Rating Wetted Parts
AFS-460, 460-112, DSS 0.5 A @ 125 VDC; 15 A @ 277 VAC Silicone
AFS-460-136, 137 0.5 A @ 24 VAC; 8 A @ 250 VAC Media Compatibility Inert dry air
Setpoint (SP) Adjustable, 0.05 to 12.0" WC Process Connection 1/8" FNPT, 1/4" compression,
Differential Progressive 0.02" to 0.8" WC per setpoint 1/4" barb (see ordering)
AFS-460-DSS Lag operates progressively 5-35% of Wiring Terminations 2 or 6 Terminals (see wiring)
SP value after lead Mounting Vertical 2 tabs w/Holes 0.19" (0.48 cm)
Manual Reset All models Enclosure Rating Zink-plated steel, NEMA 1
Sensor Type Silicone Diaphragm Dimensions 4"W x 6.13"H x 3.56"D,
Operating Pressure Range (10.2 x 15.6 x 9 cm)
0.05 to 12" WC (See ordering) Weight 1.2 lb (0.5 Kg)
Overpressure (Burst) 13.85"WC (3.45 kPa) Approvals UL File #MH6213
Warranty 2 years
17
OPERATION
Select a mounting location that is free from vibration. The switch Refer to the Dimensions drawing to identify the high pres-
must be mounted with the diaphragm in any vertical plane in sure inlet (A) and the low pressure inlet (B), and connect the
order to obtain the lowest specified operating setpoint. Avoid sample lines as follows if moisture is an issue:
mounting with the sample line connections in the up position.
Surface mount via the two 3/16" diameter holes in the integral Positive Pressure Only
mounting bracket. Connect the sample line to (A);
(B) remains open to the atmosphere.
Locate sampling probe a minimum of 1-1/2 duct diameters Negative Pressure Only
downstream from the air source. Install the sampling probe as Connect the sample line to (B);
close to the center of the airstream as possible. (A) remains open to the atmosphere.
Two Negative Samples
Connect the higher negative sample to (B);
Connect the lower negative sample to (A).
Two Positive Samples
Connect the higher positive sample to (A);
Connect the lower positive sample to (B).
One Positive and One Negative Sample
Connect the positive sample to (A);
Connect the negative sample to (B).

1042 877-826-9037 USA kele.com Next day shipping available on in-stock orders. September 2016
NEW!
PRESSURE
Cleveland Controls Adjustable Setpoint-Air Differential Pressure PSI
Switches w/Manual Reset
AFS-MR Series
DIMENSIONS

PRESSURE
ORDERING INFORMATION

MODEL DESCRIPTION
17
MODEL DESCRIPTION
AFS-460* Manual reset differential pressure switch 0.4" to 12" W.C. (99.3 to 2989 Pa), SPST
AFS-460-136 Manual reset differential pressure switch 0.4" to 12" W.C. (99.3 to 2989 Pa), 120 VAC, DPDT
AFS-460-137 Manual reset differential pressure switch 0.4" to 12" W.C. (99.3 to 2989 Pa), 24 VAC, DPDT
AFS-460-DSS Manual reset differential pressure switch 1.25" to 12.0" W.C. (311 to 2989 Pa), 2 SPST switches
* C models Kele calibration available

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A-345-K Flange mounting kit (1 required for each A-301-K or A-302-K)
21122 6" aluminum impact tube, 1/4" OD connection
21122-112 6" aluminum impact tube for 1/8" thru 1/4" ID flexible plastic tubing
PVG-1 Compact pressure or vacuum generator

September 2016 Additional selection available on kele.com kele.com 877-826-9037 USA