Product Description
Honeywell C437E2010 Pressure Switch, Manual Reset, 1/2 psi to 5 psiOverview
C437D,E Series 2000 Gas Pressure Switches are pressure-actuated devices used in industrial gas systems for safety shutoff. Series 2000 models have snap acting MicroSwitchâ„¢ snap switches to open a circuit on pressure rise or drop.
Features
- Use C437 for SPST (non-mercury) switching.
- Models intended for lockout applications must be manually reset before resuming operation.
- Models with pressure range of 1 to 26 in. wc (0.25 to 6.5 kPa)compensate for momentary surges in gas pressure with a restrictive orifice in inlet pressure channel.
- Impede tampering and provide dust-resistant operation with enclosed setting.
- Increase strength of control diaphragm with Buna N fiber-reinforced material.
- Two Buna-N fiber-reinforced seal-off diaphragms for added reliability.
- Clear glass cover allows observation of interior mechanism to aid in setting and checkout.
Product Specifications | |
Application | Industrial gas system applications for safety shutoff, pressure control, or differential-pressure control. |
Dimensions (in.) | 7 3/4 in. high x 6 1/4 in. wide x 3 7/16 in. deep |
Dimensions (mm) | 197 mm high x 159 mm wide x 87 mm deep |
Materials | Case: Die-cast aluminum |
Approvals, Underwriters Laboratories Inc. | Listed: File No. MP2168, Guide No. MFHX |
Approvals, Canadian Standards Association | Certified: File No. LR1620, Guide No. 380-W-1.16 |
Electrical Connections | Screw terminals |
Temperature Ratings (C) | 52 C - Maximum Ambient |
Temperature Ratings (F) | 125 F - Maximum Ambient |
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) | 32 F to 125 F |
Operating Temperature Range (C) | 0 C to 52 C |
Approvals, Swiss RE | Acceptable |
Approvals, Factory Mutual | Approved: Report No. 22018, 24127, J.I.IF4A3.AF |
Sensor Element | BUNA N Diaphragm |
Operating Range (psi) | 1/2 to 5 psi; 15.0 psi - Maximum Sustained |
Operating Range (kPa) | 3.0 to 35 kPa; 103.4 kPa - Maximum Sustained |
Differential Pressure Range (psi) | 1/2 psi |
Differential Pressure Range (kPa) | 3.45 kPa |
Differential Type | Additive |
Switch Operation | Manual Reset |
Switching Action | SPST, Break on Fall, non mercury |
Pipe Connection | Main or High Pressure--1/2 in. NPT internal thread; Vent or Low pressure--1/8 in. NPT internal thread |