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Honeywell L404 Oil PressureTrol

Honeywell L404 Oil PressureTrol

  • $345.00

a. Nominal at midscale operating range.

b. Brass bellows instead of stainless steel diaphragm.

c. Models with 1/4-19 BSPT thread instead of 1/4-18 NPT thread.

d. Make-on-rise models with terminal B omitted for miswiring compliance.



  • 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.


Product Specifications

Application: Provide control of steam, air, non-combustible gases or non-corrosive fluids
Dimensions (in.): 4 27/32 in. high x 4 1/2 in. wide x 3 1/4 in. deep
Dimensions (mm): 123 mm high x 114 mm wide x 83 mm deep
Mounting: 1/4 in. NPT internal thread or surface mount through back of case
Approvals, Underwriters Laboratories Inc.: Listed: File No. MP466, Guide No. MBPR
Approvals, Canadian Standards Association: Certified: File No. LR1620, Guide No. 400-E-O
Electrical Connections: Screw terminals
Contact Ratings: 120 Vac Switch Contact-- 8.0 AFL, 48.0 ALR, 10.0 A resistive; 240 Vac Switch Contact-- 5.1 AFL, 30.6 ALR, 5.0 A resistive
Operating Temperature Range (F): -35 F to +150 F
Operating Temperature Range (C): -37 C to +66 C
Approvals, Swiss RE: Acceptable
Sensor Element: Stainless Steel diaphragm

Differential Type:
Switch Operation: Auto recycle
Switching Action: SPDT snap action, make R-W, break R-B on pressure rise
Pipe Connection: Main or High Pressure--1/4 in. NPT internal thread



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