A4-4 | Differential pressure switch | ±16 psi (1.1 bar) repeatability | set point (increasing) 35-160 psid (2.4-11.0 bar) | set point (decreasing) 20-80 psid (1.4-5.5 bar). | Dwyer Instruments
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A4-4 | Differential pressure switch | ±16 psi (1.1 bar) repeatability | set point (increasing) 35-160 psid (2.4-11.0 bar) | set point (decreasing) 20-80 psid (1.4-5.5 bar). | Dwyer Instruments

Dwyer Instruments | A4-4
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Dwyer Instruments A4-4 Documents

Overview

Details for A4-4

Dwyer Instruments A4-4 Differential Pressure Switch The Dwyer Instruments A4-4 is a reliable solution for measuring and controlling differential pressure in industrial environments. This switch features an adjustable set point that allows for precise monitoring and control within a range from 35-160 inches of water column (diff) or 20-80 inches of mercury (diff). The A4-4 is built to withstand demanding conditions with its rugged construction and durable materials. Its compact design makes it easy to integrate into various applications, providing flexibility and versatility. The switch's electrical contacts enable quick and reliable switching operations for controlling equipment or activating alarms based on pressure changes. Key applications include monitoring and controlling air flow, vacuum, and pressure systems in industries such as manufacturing, HVAC, and process automation. The Dwyer Instruments A4-4 Differential Pressure Switch is a cost-effective and reliable choice for accurate differential pressure measurement and control in industrial applications. Our HVAC supply store - Your trusted source for industrial products. Fast shipping and unbeatable prices!

Series A4 Differential Pressure Switch

Adjustable Set Point, High Overpressure
Rugged Series A4 Differential Pressure Switch offers field adjustments and can handle system pressures up to 6000 psig. Piston design allows mounting in any orientation. The switch is capable of carrying moderate shock and vibratory loads.

Specifications

Series
A4 Differential Pressure Switch
Category/Type
Pressure
Type
Differential Pressure
Series
A4 Differential Pressure Switch
Service
Compatible gases.
Wetted Materials
Body; piston; and fittings: anodized aluminum; spring: steel.
Temperature Limits
-65 to 225°F (-54 to 107°C).
Pressure Limits
2000 psid (138 bar).
Repeatability
See Ordering page.
Switch Type
SPDT.
Electrical Rating
AC: 3 VA; 0.25A @ 120 VAC; 5 VA; 0.25A @ 175 VDC.
Electrical Connection
24 AWG X 12" (30.5 cm) wire leads.
Process Connection
1/4" female NPT.
Mounting Orientation
Any.
Set Point Adjustment
See Ordering page.
Weight
8.5 oz (241 g).
Agency Approvals
CE.

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