Overview
High pressure limit switches.
Features
- Stainless steel diaphragm for use with steam, air, noncombustible gases and fluids non-corrosive to stainless steel.
- L4079W is for Oil Applications.
- Micro Switch™ snap-acting switches open automatically on pressure rise; must be manually reset.
- Mount using 1/4 in. NPT female fitting on diaphragm assembly or surface mount through back of case.
Product Specifications
- Application
- Provide limit control of steam, air, non-combustible gases or non-corrosive fluids
- 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.
- 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
- Electrical Connections
- Screw terminals
- Temperature Ratings (C)
- 66 C – Maximum Ambient
- Temperature Ratings (F)
- 150 F – Maximum Ambient
- Contact Ratings
- 120 Vac Switch Contact– 9.8 AFL, 58.8 ALR; 240 Vac Switch Contact– 4.9 AFL, 29.4 ALR
- Approvals, Swiss RE
- Acceptable
- Sensor Element
- Stainless Steel diaphragm
- Operating Range (psi)
- 5 to 50 psi; 85 psi – Maximum Sustained
- Operating Range (kPa)
- 35 to 350 kPa; 586 kPa – Maximum Sustained
- Switch Operation
- Manual Reset
- Switching Action
- SPST break on pressure rise
- Pipe Connection
- Main or High Pressure–1/4 in. NPT internal thread
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