The Dungs 217-061A (AA-A2-4-3) is an SPDT differential air pressure switch known now as 266911. This switch has a 5/32” hose connection that accepts 7 PSI maximum pressure with an adjustable set point from 0.4" to 4" W.C. range. UL Listed, FM Approved, and CSA Certified.
This air pressure switch features a hose connection and operates without auxiliary power. Responsible for making and/or breaking a circuit when set pressure drops or rises. For use with automatic burner controls wired through screw terminals and 1/2” NPT conduit connection.
The 266911 (AA-A2-4-3) can be installed in any position but installed vertical upright diaphragm as standard. Suitable for air and non-aggressive gases and not for butane, propane, natural gas, and other combustible gases.
| Housing Material | Polycarbonate |
|---|---|
| Pressure Setting Range | 0.4" - 4" W.C |
| Enclosure Rating | NEMA Type 4 |
| Current Rating | 5A Resistive @ 120 VAC |
| Ambient Temperature Range | -40 °F to +140 °F (-40 °C to +60 °C) |
| Maximum Operating Pressure | 7 PSI (500 mbar) |
| Approvals | UL, FM, & CSA Certified |
| Diaphragm Material | NBR-Based Rubber |
| Pressure Connection | 5/32" (4.6mm) Diameter Positive & Negative |
| Electrical Connection | Screw terminals via 1/2" NPT Conduit Connection |
By Dave
from
Yes, I would recommend this product to a friend or co-worker
These differential air pressure switches always seem to be going out , causing us down time. Being able to order easily and keep a few extra on hand really helps us manage our production better. I'm so glad I have a reliable place to purchase these types of items from.
By Brian
from Rialto CA
Yes, I would recommend this product to a friend or co-worker
Perfect for Low Pressure Applications.
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