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EXPLOSION-PROOF DIFFERENTIAL PRESSURE SWITCH

Explosion-proof differential pressure switch, range .15-.50" w.c., approx. deadband @ min. set point .06, approx. deadband @ max. set point .11.

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Data Sheet (PDF)

$510.00

Item# 1950G-0-B-120-NA

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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

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1950G-0-B-120-NA Model Options

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Pressure Range

Deadband Range

Switch Type

Pressure Type

Pressure Port Size

Pressure Port Type

Deadband

Features

Specs

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

Series 1950G Explosion-Proof Differential Pressure Switch combines the best features of the popular Dwyer® Series 1950 Pressure Switch with the benefit of natural gas compatibility. Units are rain-tight for outdoor installations, and are UL listed for use in 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 and Class III atmospheres. IECEx Ex db IIB+H2 T6 (-40°CEasy access to the SPDT relay and power supply terminals is provided by removing the top plate of the aluminum housing. A supply voltage of 24 VDC, 120 or 240 VAC is required. A captive screw allows the cover to swing aside while remaining attached to the unit. Adjustment to the set point of the switch can be made without disassembly of the housing.

Product Applications

Natural gas applications.
Process applications.
All-weather applications.

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