B70A Pressure switches for three-phase motors direct control prev next

Description
Pressure controls suitable to control directly the electric motors of the pumps, compressors, domestic or industrial autoclaves groups. Suitable as well for fluids (gas or liquids) chemically compatible with the friction diaphragm.
  • Suitable for liquids ( gas or liquids) chemically compatible with the sensitive element with friction ( NBR) diaphragm
  • Shock- proof thermoplastic cover
  • The metallic parts are in steel
  • Connections outlet with 2 cable glands G ½ in shock- proof thermoplastic
  • Compliance with standards CEI EN 60947- 4- 1
Electrical features
  • Rated insulation voltage           Ui 415V~
  • Continuous duty rated current   Ith 25A
  • Rated operating current in AC1 Ie 20A
  • Rated operating current in Ac3 Ie 9A
  • Controllable powers of three-phase motors in AC3:
    220V/250V~              380V/415V~
    2,2kW (3 HP)               4kW (5,5HP)
Datasheet
 

Range
(connection pressure)
bar 

Minimum differential
Bottom      Top of
of Range      Range

Maximum
differential
bar 

Maximum pressure
of sensitive element
bar

Protection
level

 B70A

0,5 ÷ 7

+0,8           +1,8

+3,5

12 

IP40 

 
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