Dwyer Instruments 1950G-00-B-120-NA Pressure Switch
The Dwyer Instruments 1950G-00-B-120-NA Pressure Switch is a high-performance explosion-proof differential pressure switch engineered specifically for technical environments involving natural gas and combustible substances. This unit effectively replaces the bulky footprints of traditional switches, offering a compact NEMA 7/9 aluminum housing that is approximately half the weight of competitive models. Designed for UL, CSA, and FM approved hazardous locations, it supports Class I, Groups A, B, C, & D, and Class II, Groups E, F, & G. With a precise pressure range of 0.07 to 0.15" w.c. and an integrated SPDT switch rated at 10A, this 120VAC powered device ensures reliable process control. The Buna-N diaphragm provides excellent chemical compatibility, while the 1/8" female NPT process connection and external set point adjustment screw allow for seamless field calibration without breaching the explosion-proof enclosure. This rain-tight, NEMA 3 (IP54) rated component is essential for HVACR contractors managing gas-fired equipment and outdoor industrial applications.
Key Benefits:
- Hazardous Location Certification: Fully explosion-proof with UL, CSA, and FM approvals for Class I and II environments.
- Natural Gas Compatibility: Engineered for combustible gases and air, making it ideal for gas-fired furnace and boiler applications.
- Refined Field Calibration: Features an external set point screw for easy adjustments without disassembling the housing.
- Compact Weatherproof Design: Rain-tight NEMA 3R construction with a 50% smaller profile than conventional explosion-proof switches.
- Reliable Electrical Switching: High-capacity SPDT relay handles 10A at 120VAC for robust control of burners and blowers.
Common Questions:
Can I mount this switch in any orientation?
Standard calibration for the Dwyer 1950G-00-B-120-NA assumes the diaphragm is in the vertical position. While it can function in other positions, doing so may cause a shift in the set point. It is recommended to mount vertically for maximum accuracy.
What is the deadband for the 1950G-00 model?
The approximate deadband ranges from 0.04" w.c. at the minimum set point to 0.06" w.c. at the maximum set point, providing tight control for low-pressure applications.
How do I access the electrical terminals?
Inside the anodized aluminum housing, a captive screw allows the cover to swing aside for access to the internal terminal block, simplifying long-term maintenance and initial electrical hook-up.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Dwyer Instruments 1950G-00-B-120-NA Pressure Switch
The Dwyer Instruments 1950G-00-B-120-NA Pressure Switch is a high-performance explosion-proof differential pressure switch engineered specifically for technical environments involving natural gas and combustible substances. This unit effectively replaces the bulky footprints of traditional switches, offering a compact NEMA 7/9 aluminum housing that is approximately half the weight of competitive models. Designed for UL, CSA, and FM approved hazardous locations, it supports Class I, Groups A, B, C, & D, and Class II, Groups E, F, & G. With a precise pressure range of 0.07 to 0.15" w.c. and an integrated SPDT switch rated at 10A, this 120VAC powered device ensures reliable process control. The Buna-N diaphragm provides excellent chemical compatibility, while the 1/8" female NPT process connection and external set point adjustment screw allow for seamless field calibration without breaching the explosion-proof enclosure. This rain-tight, NEMA 3 (IP54) rated component is essential for HVACR contractors managing gas-fired equipment and outdoor industrial applications.
Key Benefits:
- Hazardous Location Certification: Fully explosion-proof with UL, CSA, and FM approvals for Class I and II environments.
- Natural Gas Compatibility: Engineered for combustible gases and air, making it ideal for gas-fired furnace and boiler applications.
- Refined Field Calibration: Features an external set point screw for easy adjustments without disassembling the housing.
- Compact Weatherproof Design: Rain-tight NEMA 3R construction with a 50% smaller profile than conventional explosion-proof switches.
- Reliable Electrical Switching: High-capacity SPDT relay handles 10A at 120VAC for robust control of burners and blowers.
Common Questions:
Can I mount this switch in any orientation?
Standard calibration for the Dwyer 1950G-00-B-120-NA assumes the diaphragm is in the vertical position. While it can function in other positions, doing so may cause a shift in the set point. It is recommended to mount vertically for maximum accuracy.
What is the deadband for the 1950G-00 model?
The approximate deadband ranges from 0.04" w.c. at the minimum set point to 0.06" w.c. at the maximum set point, providing tight control for low-pressure applications.
How do I access the electrical terminals?
Inside the anodized aluminum housing, a captive screw allows the cover to swing aside for access to the internal terminal block, simplifying long-term maintenance and initial electrical hook-up.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Description
The Dwyer Instruments 1950G-00-B-120-NA Pressure Switch is a high-performance explosion-proof differential pressure switch engineered specifically for technical environments involving natural gas and combustible substances. This unit effectively replaces the bulky footprints of traditional switches, offering a compact NEMA 7/9 aluminum housing that is approximately half the weight of competitive models. Designed for UL, CSA, and FM approved hazardous locations, it supports Class I, Groups A, B, C, & D, and Class II, Groups E, F, & G. With a precise pressure range of 0.07 to 0.15" w.c. and an integrated SPDT switch rated at 10A, this 120VAC powered device ensures reliable process control. The Buna-N diaphragm provides excellent chemical compatibility, while the 1/8" female NPT process connection and external set point adjustment screw allow for seamless field calibration without breaching the explosion-proof enclosure. This rain-tight, NEMA 3 (IP54) rated component is essential for HVACR contractors managing gas-fired equipment and outdoor industrial applications.
Key Benefits:
- Hazardous Location Certification: Fully explosion-proof with UL, CSA, and FM approvals for Class I and II environments.
- Natural Gas Compatibility: Engineered for combustible gases and air, making it ideal for gas-fired furnace and boiler applications.
- Refined Field Calibration: Features an external set point screw for easy adjustments without disassembling the housing.
- Compact Weatherproof Design: Rain-tight NEMA 3R construction with a 50% smaller profile than conventional explosion-proof switches.
- Reliable Electrical Switching: High-capacity SPDT relay handles 10A at 120VAC for robust control of burners and blowers.
Common Questions:
Can I mount this switch in any orientation?
Standard calibration for the Dwyer 1950G-00-B-120-NA assumes the diaphragm is in the vertical position. While it can function in other positions, doing so may cause a shift in the set point. It is recommended to mount vertically for maximum accuracy.
What is the deadband for the 1950G-00 model?
The approximate deadband ranges from 0.04" w.c. at the minimum set point to 0.06" w.c. at the maximum set point, providing tight control for low-pressure applications.
How do I access the electrical terminals?
Inside the anodized aluminum housing, a captive screw allows the cover to swing aside for access to the internal terminal block, simplifying long-term maintenance and initial electrical hook-up.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
