Honeywell Kromschroder DL Pressure Switch for Air
The Honeywell Kromschroder DL pressure switch provides accurate, reliable monitoring of air pressure for industrial and commercial combustion systems, boilers, and HVAC systems.
The Honeywell Kromschroder DL pressure switch provides accurate, reliable monitoring of air pressure for industrial and commercial combustion systems, boilers, and HVAC systems. The DL can be used as a positive pressure switch, vacuum sensor or as a differential pressure switch for air, flue gas and other non-aggressive gases. It monitors extremely low pressure differentials and is not suitable for fuel gases.
The DL triggers switch-on, switch-off or switch-over if a set switching point is reached. The switching point can be adjusted by a hand wheel or an adjusting screw.
- Pressure ranges from 0.08" to 20" WC (0.2 to 50 mbar)
- Includes one Form C switch contact
- EC type-tested and certified (DIN EN 1854)
- Screw terminals or AMP plugs for electrical connections
- Red or blue pilot lamps, red-green LED optional for indicating switching status
- FM and UL approved
- Certified pursuant to GOST-R
Model Selection Guide
Use this table to find the right model for your application. Don't see the option you need? Call a Lesman sales specialist at 800-953-7626
| Pressure Range | Process Connection | Electrical Connection | Adjustment | Pilot Lamp | Model Designation |
Click for Price and Availability |
|---|---|---|---|---|---|---|
| 0.12" to 1.2" WC | 1/4" NPT Threaded Connection and Tube Connection | Screw Terminals and 1/2" NPT Conduit | Hand Wheel with "WC and mbar Scale | Blue for 110/120 VAC | DL 3AT-2N | KS84444950 |
| 0.12" to 1.2" WC | 1/4" NPT Threaded Connection and Tube Connection | Screw Terminals and 1/2" NPT Conduit | Hand Wheel with "WC and mbar Scale | Blue for 110/120 VAC | DL 3AT-2N | KS84444952 |
| 0.4" to 4" WC | 1/4" NPT Threaded Connection and Tube Connection | Screw Terminals and 1/2" NPT Conduit | Hand Wheel with "WC and mbar Scale | Blue for 110/120 VAC | DL 10AT-2N | KS84444980 |
| 1.0" to 20" WC | 1/4" NPT Threaded Connection and Tube Connection | Screw Terminals and 1/2" NPT Conduit | Hand Wheel with "WC and mbar Scale | Blue for 110/120 VAC | DL 50AT-2N | KS84444990 |
| 0.2 to 1 mbar | Flat Plugs, Tube Connection | AMP Plugs | Adjusting Screw | None | DL 1E-E | KS84444010 |
| 0.2 to 3 mbar | Screw Terminals, Rp 1/4" Threaded Connection, Tube Connection | Screw Terminals | Hand Wheel | None | DL 3A-3 | KS84444400 |
| 0.2 to 3 mbar | Screw Terminals, Rp 1/4" Threaded Connection, Tube Connection | Gold Contacts. 4-Pin Plug and Socket | Hand Wheel | Green/Red for 24 VAC/VDC | DL 3AG-6K2 | KS84444453 |
| Measured Variable | Differential Pressure, Gauge Pressure, Vacuum/Compound Pressure |
|---|---|
| Enclosure/Construction | NEMA 1 |
| Switch Output | Form C Relay |
| Sensor Type | Diaphragm |
| Adjustment | External Adjustment, Reference Scale/Dial |