Overview

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

Features

• 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: Subtractive

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

Available Models (Pressure Variations):

L404F1060

L404F1078

L404F1102

L404F1094

Operating Range (psi):2 to 15 psi; 25 psi – Maximum Sustained

Operating Range (kPa):14 to 103 kPa; 172 kPa – Maximum Sustained

Differential Pressure Range (psi):2 to 6 psi

Differential Pressure Range (kPa):14 to 41 kPa

Operating Range (psi): 5 to 50 psi; 85 psi – Maximum Sustained

Operating Range (kPa): 35 to 345 kPa; 586 kPa – Maximum Sustained

Differential Pressure Range (psi): 6 to 14 psi

Differential Pressure Range (kPa): 41 to 97 kPa

Operating Range (psi): 10 to 150 psi; 225 psi – Maximum Sustained

Operating Range (kPa): 69 to 1034 kPa; 1151 kPa – Maximum Sustained

Differential Pressure Range (psi): 10 to 22 psi

Differential Pressure Range (kPa): 60 to 152 kPa

Operating Range (psi): 20 to 300 psi; 350 psi – Maximum Sustained

Operating Range (kPa): 138 to 2068 kPa; 2413 kPa – Maximum Sustained

Differential Pressure Range (psi): 20 to 50 psi

Differential Pressure Range (kPa): 138 to 345 kPa

Resources:

• Honeywell L404 PressureTrol Product Data and Specifications