Pressure Measurement

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Home | Mechanical Pressure Switches | 400 Series Heavy Duty | Product Specifications

 

400 Series Heavy-Duty Mechanical Switch
Product Specifications

 

SPECIFICATIONS
Switching parameters
     Number
     Function
     Contact rating
 
     Non-repeatability
     Contact material
     Frequency
     Media

1
SPDT, micro switch
Up to 28 Vdc Max 4A
Up to 250 Vac Max 3A
±2% of full scale of adjustment range
Silver-plated, self-cleaning
Max. 200 cycles/min.
Diaphragm type, compressed air or non-corrosive liquids
Piston type, self-lubricating fluids such as hydraulic oil or grease
Pressure ranges 0 psig to 300 psig through 0 psig to 5,000 psig
Adjustment knob from 3 psig to 4,600 psig dependent on
full scale range
Switch adjustment
     Switch point
     Hysteresis

Full scale
Diaphragm type, 1% to 11% of adjustment range full scale
Piston type, 2% to 8% of adjustment range full scale
Service life >1,000,000 load cycles
Temperature ranges Media 14 °F to 176 °F (-10 °C to 80 °C)
Ambient 14 °F to 176 °F (-10 °C to 80 °C)
Storage 13 °F to 185 °F (-25 °C to 85 °C)
Proof pressure 300 psi or 5,000 psi depending on adjustment range
Measuring element NBR diaphragm ≤ 230 psig
Stainless steel piston with NBR seal ≥ 500 psig
1/4" NPT and 7/16-20 SAE zinc-plated steel connections standard, others
available on request
Housing material Zinc-plated steel
Environmental rating IP65 for Hirschmann
IP67 for M12 x 1
Electromagnetic rating CE compliant to EU Standard 73/23/EWG
RFI, EMI and ESD protection
Shock 30 g’s according to IEC 60068-2-27
Vibration 10 g’s according to IEC 60068-2-6
Weight Approximately 0.66 lb.
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