B71A

Pressure switches for single-phase / two-phase motors direct control

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B71A FOR MORE INFO

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• DESCRIPTION
• TECHNICAL SPECIFICATION
• HOMOLOGATION AND INSTALLATION
• TECHNICAL LITERATURE

• DESCRIPTION
  0

  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.

  General features

  • Sensitive element with friction membrane.
  • Adjustable differential.
  • Female connection G 1/4.
  • Cover in shockproof thermoplastic material.
  • The metallic parts are in steel.
  • Earth clamp.
  • Output connections with two cable glands.
  • Maximum temperature of the controlled fluid: 70°C.
  • Pressure switch body admissible temperature: -15 ÷ 60°C.
  • Storage and transport temperature: -15 ÷ 60°C.
  • Unit weight: 0.35 Kg.

  Electric features

  • Rated insulation voltage Ui 415V~
  • Continuous duty rated current Ith 15A
• ADVANTAGES
  0

  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.

  Advantages
• TECHNICAL SPECIFICATION

  CODE	RANGE	DIFFERENTIAL START OF SCALE	DIFFERENTIAL FULL SCALE	MAXIMUM DIFFERENTIAL	PROTECTION DEGREE
  B71A	1.5 ÷ 4.5 bar	1.0 ÷ 2.1 bar	1.2 ÷ 2.3 bar	2.3 bar	IP20

• HOMOLOGATION AND INSTALLATION
  Homologation

  • Complies with EN 60947-4-1 standards.

  Installation and use

  • Direct installation on the pipe.

  • Contacts are opening when pressure rises.
  • Bipolar contact allows the control of electric motors up to 3A, without contactor.
• TECHNICAL LITERATURE
  • B71 EN technical data sheet
  • BIM Object B71A
• FAQS