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Differential pressure switch | range 0.5-2 psid | approx. deadband @ min. set point 0.3 | approx. deadband @ max. set point 0.3.
Series 1950 Explosion-proof Differential Pressure Switch
Series 1950 Explosion-Proof Differential Pressure Switch combines the best features of the popular Dwyer® Series 1900 Pressure Switch with an integral explosion-proof and weatherproof housing, making it an exceptional value for either application. It is CE, UL and CSA listed, FM approved for use in Class I, Div 1, Groups C and D, Class II Groups E, F, and G and Class III hazardous atmospheres (NEMA 7 & 9), Raintight NEMA 3 (IP54). Weatherproof features include a drain plug and O-ring seal in cover. Electrical connections are easily made by removing front cover. For convenience the set point adjustment screw is located on the outside of the housing. Twelve models offer set points from .03 to 20 in w.c. (0.0075 to 5 kPa) and from .5 to 50 psi (0.035 to 3.5 bar). The unit is very light and compact — about half the weight and bulk of other explosion-proof or weather-proof switches with separate enclosures.
CAUTION: For use only with air or compatible gases. Applications with hazardous atmospheres and a single positive pressure may require special venting.
Product Applications
- HVAC applications
- Process applications
- All-weather applications
- Explosion-proof and weatherproof housing provides device protection for outdoor use or harsh environment operation
- External set point screw provides easy access that simplifies making adjustments without opening or disassembling enclosure
- Easily accessible electrical connection simplifies the installation
- Series
- 1950 Explosion-proof Differential Pressure Switch
- Category/Type
- Pressure
- Type
- Differential Pressure
- Series
- 1950 Explosion-proof Differential Pressure Switch
- Service
- Air and non-combustible; compatible gases.
- Wetted Materials
- Consult factory.
- Temperature Limits
- -40 to 140°F (-40 to 60°C); 0 to 140°F (-17.8 to 60°C)for 1950P-8; 15; 25; and 50. -30 to 130°F (-34.4 to 54.4°C) for 1950-02.
- Pressure Limits
- Continuous: 1950’s – 45″ w.c. (0.11 bar); 1950P’s – 35 psi (2.41 bar); 1950P-50 only – 70 psi (4.83 bar). Surge: 1950’s – 10 psi (0.69 bar); 1950P’s – 50 psi (3.45 bar); 1950P-50 only – 90 psi (6.21 bar).
- Enclosure Rating
- NEMA 3 (IP54); NEMA 7 and 9.
- Switch Type
- Single-pole double-throw (SPDT).
- Electrical Rating
- 15 A @ 125; 250; 480 VAC; 60 Hz. Resistive 1/8 HP @ 125 VAC; 1/4 HP @ 250 VAC; 60 Hz.
- Electrical Connections
- 3 screw type; common; normally open and normally closed.
- 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
- 3.25 lb (1.5 kg); 1950-02 model 4.4 lb (2 kg).
- Agency Approvals
- CE; CSA; FM; UL.
Resources
^^Differential pressure switch, range 0.5-2 psid, approx. deadband @ min. set point 0.3, approx. deadband @ max. set point 0.3.^^
Professionally packed and fast shipping
Through our long-term relationship in a long-standing partnership with UPS, FedEx, DHL as well as a range of other top global carriers we can provide a variety of shipping options. Our warehouse staff are highly trained to pack your goods exactly as per the specifications that we supply. Your products will be subjected to a thorough examination and will be properly packaged prior to being sent out. We ship to thousands of customers each day from multiple countries. Our determination to be the largest online retailer in the world is shown by this. Both Europe as well as the USA have warehouses and distribution centers.
Note: Orders with more than one item will be assigned a different processing period for each item.
Before shipment, all ordered products will be thoroughly inspected. The majority of orders will be sent within 48 hours. The delivery estimate is between 3 and 7 days.
Returns
We are not able to manage the stock in our warehouse or factory. The stock can change at any time. Please understand it may happen that your order may be out of stock once your order has been made.
Our policy lasts for 30 days. We are unable to exchange or refund your order after 30 days since you purchased it.
In order for your item to be returned the item must not be opened and in the condition you received it. It must also be returned in the original packaging.
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