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BF0031A400 - CONTROL RELAY 3NO+1NC 400V 50/60HZ

MPN: BF0031A400

Special Price £39.53 £32.94 Regular Price £65.88

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Why Choose the BF0031A400?

The Lovato BF0031A400 control relay delivers reliable switching for AC and DC control circuits. Featuring an AC coil 50/60Hz at 400VAC, this 4‑pole unit provides 3NO + 1NC auxiliary contacts for versatile control logic. Designed for DIN rail 35mm or screw mounting, it supports Ui 690 V and Uimp 6 kV, with an Ith of 10 A to suit demanding industrial panels and automation tasks.

Built for longevity and harsh environments, the BF00 series device offers 20,000,000 mechanical cycles, -50 to 70 °C operation, and up to 3000 m altitude with pollution degree 3. Terminal screws tighten to 1.5–1.8 Nm, and the unit weighs 366 g. Compliant with IEC/EN 60947-1 and 60947-5-1 plus UL and CSA equivalents, it integrates seamlessly into global panels.

Key Benefits

  • AC coil 50/60Hz, 400VAC for stable control across common supplies.
  • 4-pole, 3NO+1NC contacts enable flexible interlocking and signalling.
  • High insulation ratings Ui 690 V and Uimp 6 kV enhance safety margins.
  • Rated Ith 10 A supports robust switching in control circuits.
  • Wide operating temperature -50 to 70 °C for harsh environments.
  • DIN rail 35mm or screw mounting simplifies panel installation.
  • Long mechanical life of 20,000,000 cycles reduces maintenance.
  • Certified to IEC/EN, UL, CSA standards for global compliance.

Technical Specification

  • Product type designation: BF00
  • Number of poles: 4
  • Rated insulation voltage Ui (IEC/EN): 690 V
  • Rated impulse withstand voltage Uimp: 6 kV
  • Ith (IEC): 10 A
  • Terminal tightening torque: 1.5 to 1.8 Nm
  • Weight: 366 g
  • Mechanical life: 20000000 cycles
  • Operating temperature: -50 to 70 °C
  • Storage temperature: -60 to 80 °C
  • Max altitude: 3000 m
  • Pollution degree: 3

What’s Included

  • Lovato BF0031A400 control relay
  • Installation leaflet

Applications

  • Industrial control panels and automation cabinets
  • Interlocking, signalling and auxiliary control circuits
  • Machine control, conveyors and material handling systems
  • HVAC and building services control panels

Frequently Asked Questions

What is the coil voltage and frequency?
The coil is rated 400 VAC at 50/60Hz.
What contact configuration does this relay provide?
It has 4 poles with built-in auxiliary contacts 3NO + 1NC.
How can the BF0031A400 be mounted?
It supports screw mounting or 35mm DIN rail mounting.
What environmental limits should I consider?
Operating temperature is -50 to 70 °C and maximum altitude is 3000 m, pollution degree 3.
Which standards does it conform to?
It conforms to IEC/EN 60947-1 and 60947-5-1, UL 60947-1 and UL 60947-5-1, and CSA equivalents.

Safety note: Ensure power is isolated before installation or maintenance. Tighten terminals to 1.5–1.8 Nm and adhere to applicable IEC/EN, UL, and CSA standards when commissioning.

More Information
Manufacturer Part Number BF0031A400
Manufacturer Lovato
HS Code 85365080
Barcode 8013975162699
Coil Voltage 400V
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