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Pressure Switch
รายละเอียด:
Features
- C437 models have direct- and reverse-acting 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, CSA
- 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 to 26 in. wc; 5.0 psi - Maximum Sustained
- Operating Range (kPa)
- 0.5 to 7.0 kPa; 34.5 kPa - Maximum Sustained
- Differential Pressure Range (psi)
- 1 3/4 in. wc
- Differential Pressure Range (kPa)
- 0.44 kPa
- Differential Type
- Subtractive
- Switch Operation
- Manual Reset
- Switching Action
- SPST, break on rise, non-mercury
- Pipe Connection
- Main or High Pressure--1/2 in. NPT internal thread; Vent or Low pressure--1/8 in. NPT internal thread
คำค้นหา:
switch pressure honeywell