The Honeywell L4079B1033 Pressuretrol limit controller is a stainless steel diaphragm for use with steam, air, non-combustible gases and fluids non-corrosive to stainless steel. The the pressure rises, the Micro Switch snap-acting switches open automatically, and then must be manually reset. Mount the L4079B1033 using 1/4-inch NPT female fitting on diaphragm assembly. Surface mounting through the back of the case is also an option.
Product Specifications
| Description |
Pressuretrol® Limit Controller, Manual Reset, 2 psi to 15 psi |
| Application |
Provide limit control of steam, air, non-combustible gases or non-corrosive fluids |
| Operating Range (psi) |
2 to 15 psi |
| Operating Range (kPa) |
14 to 103 kPa |
| Mounting |
1/4 in. NPT internal thread or surface mount through back of case |
| Switch Operation |
Manual Reset |
| Switching Action |
SPST break on pressure rise |
| Sensor Element |
Stainless Steel diaphragm |
| Pipe Connections, Main or High Pressure |
1/4 in. NPT internal thread |
| Dimensions (in.) |
5 in. high x 4 1/2 in. wide x 3 1/2 in.
deep |
| Dimensions (mm) |
127 mm high x 114 mm wide x 89 mm
deep |
| Switch Contact Ratings (120 Vac) |
9.8 AFL, 58.8 ALR |
| Switch Contact Ratings (240 Vac) |
4.9 AFL, 29.4 ALR |
| Maximum Sustained Operating Pressure (psi) |
25 psi |
| Maximum Sustained Operating Pressure
(kPa) |
172 kPa |
| Maximum Ambient Temperature (F) |
150 F |
| Maximum Ambient Temperature (C) |
66 C |
| Electrical Connections |
Screw terminals |
| Approvals, Underwriters Laboratories Inc |
Listed: File No. MP466, Guide No. MBPR |
| Approvals, Swiss RE (formerly IRI) |
Acceptable |