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Honeywell L404F Pressuretrol® Controllers

Pressuretrol® Controllers
L404F

Provide operating control with automatic limit protection for pressure systems up to 300 psi (2068 kPa).

• Use with steam, air, noncombustible gases, or fluids non-corrosive to pressure sensing element.
• Models have snap-acting switching to open or close a circuit on pressure rise.
• Have adjustable differentials.
• Adjustments are made by screws on top of case.
• Mount using 1/4 inch -18 NPT internal pipe threads or surface mount through base of case.
• Ground screw terminal.

Select a link under the "item" tab below to order.

Cat #Operating Pressure Range (psi)(psi)MountingPressure Differential (psi)IncludesSwitching Action
L404F10602 to 15 psi25 psi1/4 in. NPT internal thread or surface mount through back of case2 to 6 psi-SPDT snap action, make R-W, break R-B on pressure rise
L404F10785 to 50 psi85 psi1/4 in. NPT internal thread or surface mount through back of case6 to 14 psi-SPDT snap action, make R-W, break R-B on pressure rise
L404F109420 to 300 psi350 psi1/4 in. NPT internal thread or surface mount through back of case20 to 50 psi-SPDT snap action, make R-W, break R-B on pressure rise make R-W, break R-B on pressure rise
L404F110210 to 150 psi225 psi1/4 in. NPT internal thread or surface mount through back of case10 to 22 psi-SPDT snap action, make R-W, break R-B on pressure rise
L404F12192 to 15 psi25 psi1/4 in. NPT internal thread or surface mount through back of case2 to 6 psiBSPT ground screw and European EnclosureSPDT snap action, make R-W, break R-B on pressure rise
L404F122710 to 150 psi225 psi1/4 in. NPT internal thread or surface mount through back of case10 to 22 psiBSPT ground screw and European EnclosureSPDT snap action, make R-W, break R-B on pressure rise
L404F123520 to 300 psi350 psi1/4 in. NPT internal thread or surface mount through back of case20 to 50 psiBSPT ground screw and European EnclosureSPDT snap action, make R-W, break R-B on pressure rise
L404F12435 to 50 psi85 psi1/4 in. NPT internal thread or surface mount through back of case6 to 14 psiBSPT ground screw and European EnclosureSPDT snap action, make R-W, break R-B on pressure rise
L404F13671 to 8 psi25 psi1/4 inch-18NPT connection on diaphragm assembly; or surface mounts using holes in back of case.0.75 to 2 psi-Snap switch breaks R-B (closes R-W) on pressure rise. Make-on devices omit terminal B.
L404F13755 to 50 psi85 psi1/4 in. NPT internal thread or surface mount through back of case6 to 14 psiMiswiring Compliant (less B terminal)Snap switch makes R-W on pressure rise
L404F138310 to 150 psi2251/4 in. NPT internal thread or surface mount through back of case10 to 22 psiMiswiring Compliant (less B terminal)Snap switch makes R-W on pressure rise
L404F139120 to 300 psi350 psi1/4 in. NPT internal thread or surface mount through back of case20 to 50 psiMiswiring Compliant (less B terminal)Snap switch makes R-W on pressure rise
L404F14092 to 15 psi25 psi1/4 in. NPT internal thread or surface mount through back of case2 to 6 psiMiswiring Compliant (less B terminal)Snap switch makes R-W on pressure rise
Application Provide control of steam, air, non-combustible gases or non-corrosive fluids
Pipe Connections, Main or High Pressure 1/4 in. NPT internal thread
Electrical Connections Screw terminals
Sensor Element Stainless Steel diaphragm
Differential Type Subtractive
Switch Operation Auto recycle
Switch Contact Ratings 8.0 AFL, 48.0 ALR, 10.0 A resistive (120 Vac); 5.1 AFL, 30.6 ALR, 5.0 A resistive (240 Vac) Switch Contact Ratings
(120 Vac) 8.0 AFL, 48.0 ALR, 10.0 A resistive
(120 Vdc) 2.0 AFL, 20.0 ALR, 8.0 A resistive
(240 Vac) 5.1 AFL, 30.6 ALR, 5.0 A resistive
(240 Vdc) 1.0 AFL, 10.0 ALR, 4.0 A resistive
Temperature Range -35 F to +150 F (-37 C to +66 C)
Approvals Canadian Standards Association: Certified: File No. LR1620, Guide No. 400-E-O
Underwriters Laboratories Inc. Listed: File No. MP466, Guide No. MBPR


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