Description
HONEYWELL
KROM SCHRODER
DL150A-31
PRESSURE SWITCH FOR AIR DL
84444880
246343
P MAX=300 MBAR
U=250VAC
I=5(1)A
IP54
T=-20/+80C
The Honeywell Kromschröder DL150A-31 is an air pressure switch designed to monitor and detect pressure conditions within combustion air supply and gas detection systems. Carrying part reference 84444880, this pressure switch operates within the DL series product family from Kromschröder, a well-established Honeywell brand widely trusted in industrial and marine burner management applications. With a maximum pressure rating of 300 mbar, a supply voltage of 250 VAC, and a current rating of 5(1)A, it provides reliable switching action in response to air pressure changes. Its IP54 ingress protection rating and operating temperature range of -20°C to +80°C make it suitable for the demanding environmental conditions found in marine machinery spaces and gas detection installations onboard vessels.
Key Features
✓ Air pressure monitoring switch from the Honeywell Kromschröder DL series, designed to detect pressure presence or loss in combustion air and related gas system circuits.
✓ Rated at a maximum pressure of 300 mbar, with electrical ratings of 250 VAC and 5(1)A, as stated on the original nameplate data — all other specifications subject to confirmation against full datasheet.
✓ IP54 ingress protection rating provides resistance to dust ingress and water splashing, making the unit suitable for installation in non-submerged machinery space environments typical of marine applications.
✓ Operating temperature range of -20°C to +80°C supports use across a wide range of ambient conditions; compatibility with specific burner controllers, gas detection panels, or automation systems should be confirmed against the vessel’s existing configuration.
✓ Direct replacement consideration for existing DL150A-31 units within Kromschröder or Honeywell burner management and gas detection assemblies; correct fitment and system integration should be verified prior to installation.
Marine Applications
✓ Combustion air pressure monitoring within marine boiler and burner management systems, ensuring safe air supply conditions prior to ignition sequences.
✓ Integration into gas detection systems onboard vessels where air flow or pressure confirmation is required as part of the safety interlock chain.
✓ Use in engine room ventilation and air supply monitoring circuits aboard commercial cargo vessels, tankers, and passenger ships.
✓ Applicable to auxiliary machinery systems including incinerators, thermal oil heaters, and fired equipment requiring air pressure verification.
✓ Retrofit and replacement installations on vessels operating Honeywell or Kromschröder burner control equipment where the original pressure switch requires servicing or renewal.
Why Marine Engineers Choose
The Kromschröder DL150A-31 is a well-recognised component within Honeywell burner management and gas safety systems, valued for its straightforward integration, defined electrical ratings, and robust environmental protection in the context of shipboard combustion and air monitoring applications.
Ideal For
Commercial cargo vessels, bulk carriers, tankers, passenger ferries, offshore support vessels, and any marine platform operating Honeywell Kromschröder burner management or gas detection systems requiring a verified air pressure switch replacement.
Technical Support & Compliance
Technical assistance is available for remote troubleshooting, onboard support guidance, testing and commissioning advice, and retrofit or upgrade integration queries related to this pressure switch and its associated systems. Compatibility with a specific installation is subject to confirmation — buyers are advised to share nameplate photographs, the full part number, any relevant system drawings or wiring diagrams, the burner controller or gas detection panel model and software version, and vessel name or IMO number when confirming suitability. Repair and recalibration options may be available depending on the scope of work required.
