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Brand: Dwyer InstrumentsSKU: 1950G-5-B-120-NA

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1950G-5-B-120-NA | Explosion-proof differential pressure switch | range 1.4-5.5" w.c. | approx. deadband @ min. set point .4 | approx. deadband @ max. set point .9. | Dwyer Instruments

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Documents and manuals

Dwyer Instruments 1950G-5-B-120-NA Documents

Instruction Manual (English)Instruction Manual (Multilingual)Series 1950G Catalog Page 1950G More Info

Overview

Details for 1950G-5-B-120-NA

Dwyer Instruments 1950G-5-B-120-NA: Precision Differential Pressure Switch for HVAC Systems Dwyer Instruments' 1950G-5-B-120-NA differential pressure switch is a highly accurate and reliable device designed for use in HVAC systems. This switch features a 1.4/5.5" WC pressure range and a #5 differential, making it suitable for applications such as air filters, fan coil units, and ductwork. With its rugged construction, the 1950G-5-B-120-NA is built to withstand the harsh conditions found in industrial environments. Its snap-action contacts provide precise and repeatable switching, while its adjustable set point allows for customization to meet specific application requirements. For added convenience, this switch includes a built-in test button, enabling quick and easy testing of its functionality. Its compact size and DIN rail mounting capability make it easy to install in tight spaces. Our HVAC supply store is your trusted supplier for Dwyer Instruments products. Contact us today to request a quote or place an order. We offer competitive pricing, fast shipping, and expert technical support to help you find the right solution for your HVAC needs!

Series 1950G Explosion-proof Differential Pressure Switch

Explosion-proof, Weatherproof, Compatible with Natural Gases

Series 1950G Explosion-Proof Differential Pressure Switch combines the bestfeatures of the popular Dwyer® Series 1950 Pressure Switch with the benefit of naturalgas compatibility. Units are rain-tight for outdoor installations, and are UL listed for usein Class I, Groups A, B, C, & D; Class II, Groups E, F, & G and Class III atmospheres,Directive 2014/34/EU (ATEX) Compliant for 2813 II 2G Ex db IIB+H2 T6, CSA& FM approved for Class I, Div. 1, Groups B, C, D; Class II, Div. 1, Groups E, F, G andClass III atmospheres. IECEx Ex db IIB+H2 T6 (-40°CEasy access to the SPDT relay and power supply terminals is provided by removingthe top plate of the aluminum housing. A supply voltage of 24 VDC, 120 or 240 VACis required. A captive screw allows the cover to swing aside while remaining attachedto the unit. Adjustment to the set point of the switch can be made without disassemblyof the housing.

Product Applications

Natural gas applications
Process applications
All-weather applications

Compatible with natural gas
External set point screw provides easy access that simplifies making adjustments without opening or disassembling enclosure
Easily accessible electrical connection simplifies the installation

Specifications

Series: 1950G Explosion-proof Differential Pressure Switch
Category/Type: Pressure
Type: Differential Pressure
Series: 1950G Explosion-proof Differential Pressure Switch
Service: Air and compatible combustible gases.
Wetted Materials: Consult factory.
Temperature Limits: 0 to 140°F (-17 to 60°C). Note: Set point drift may occur with ambient temperature changes.
Pressure Limits: 45" w.c. (11.2 kPa) continuous; 10 psig (68.95 kPa) surge.
Enclosure Rating: NEMA 3 (IP54); NEMA 7 and 9.
Switch Type: 1 Form C relay (SPDT).
Electrical Rating: 10 A; 120/240 VAC; 28 VDC. Resistive 50 mA; 125 VDC.
Power Requirements: 24 VDC ±10%. 120 or 240 VAC ±10% optional.
Electrical Connections: Internal terminal block.
Process Connections: 1/8" female NPT.
Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.
Set Point Adjustment: Screw type on top of housing.
Weight: 2 lbs 15.7 oz (1.35 kg).
Agency Approvals: ATEX; CE; CSA; FM; IECEx; UL.