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BF0040D110 - CONTROL RELAY 4NO 110VDC

MPN: BF0040D110

Special Price £95.38 £79.48 Regular Price £158.96

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Why Choose the BF0040D110?

Designed for reliable switching in industrial control circuits, the Lovato BF0040D110 control relay couples a 110 V DC coil with four normally-open contacts. The BF0040D110 mounts via screws or on 35 mm DIN rail for fast panel integration. Rated Ui 690 V, Uimp 6 kV and Ith 10 A, it suits demanding auxiliary and signalling applications.

Built for longevity and harsh environments, this BF00-series relay offers a mechanical life of 20,000,000 cycles and an operating range from -50 to 70 °C. Terminal screws tighten to 1.5–1.8 Nm, and it is specified for use up to 3000 m with pollution degree 3. Conformity to IEC/EN 60947 and UL/CSA standards supports global panel compliance, with a practical 494 g build for robust installations.

Key Benefits

  • Reliable 110 V DC coil for stable industrial control circuits.
  • Four normally-open contacts enable flexible multi-point auxiliary switching.
  • High insulation rating Ui 690 V improves safety margins.
  • 6 kV impulse withstand enhances resilience to transient voltages.
  • -50 to 70 °C operating range suits harsh environments.
  • Screw or 35 mm DIN rail mounting simplifies panel installation.
  • Long 20,000,000-cycle mechanical life reduces maintenance interventions.

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: 494 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 BF0040D110 control relay
  • Manufacturer datasheet (downloadable)
  • Protective packaging

Applications

  • Industrial control panels and automation cabinets
  • Machinery interlocking and auxiliary switching
  • Process signalling and interface circuits
  • HVAC and building services control loops
  • Power distribution auxiliary control and indication circuits

Frequently Asked Questions

What coil voltage and type does the BF0040D110 use?
It has a DC coil rated at 110 V DC.
What is the contact configuration and number of poles?
It provides four normally-open auxiliary contacts with four poles.
How can this relay be mounted?
It supports screw mounting or 35 mm DIN rail installation.
What environmental limits does it support?
Operating temperature is -50 to 70 °C, with max altitude 3000 m and pollution degree 3.
Which standards does it conform to?
IEC/EN 60947-1, IEC/EN 60947-5-1, UL 60947-1, UL 60947-5-1, CSA C22.2 n° 60947-1 and CSA C22.2 n° 60947-5-1.

Safety note: Installation and servicing must be performed by qualified personnel. Isolate supplies before wiring, apply the specified tightening torque, and operate within the stated electrical and environmental ratings, including pollution degree 3.

More Information
Manufacturer Part Number BF0040D110
Manufacturer Lovato
HS Code 85365080
Barcode 8013975167571
Coil Voltage 110VDC
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