BF0040D220 - CONTROL RELAY 4NO 220VDC

Why Choose the BF0040D220?

Designed for dependable switching in control circuits, the Lovato BF0040D220 control relay combines a 220V DC coil with four normally open contacts. Part of Lovato’s control relays with AC and DC control circuit range, it supports screw or 35mm DIN rail mounting for quick panel integration. It suits automation, signalling and interlocking tasks requiring clean, isolated control using 4NO auxiliary contacts.

Conforms to IEC/EN 60947-1 and 60947-5-1, plus UL and CSA standards, offering Ui 690 V and Uimp 6 kV for robust insulation. The relay carries Ith 10 A, a mechanical life of 20,000,000 cycles, and operates from -50 to 70 °C up to 3000 m altitude (pollution degree 3). Terminal tightening torque 1.5–1.8 Nm supports secure, lasting connections.

Key Benefits

• 220V DC coil for precise, stable control in DC systems.
• Four NO contacts provide straightforward, clean signal expansion.
• Rated Ui 690 V and Uimp 6 kV for insulation strength.
• 10 A Ith supports versatile control circuit loads.
• -50 to 70 °C operation suits cold and demanding environments.
• 20 million mechanical cycles for long service life.
• Screw or 35mm DIN rail mounting simplifies panel installation.
• Compliant with IEC/EN, UL, and CSA standards.

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: 496 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 BF0040D220 control relay unit
• Basic installation and safety information

Applications

• Control panels and switchgear assemblies
• Automation, signalling and interlocking circuits
• Interface and expansion of control signals using 4NO contacts
• Machine and process control in industrial environments

Safety note: Install and commission only by qualified personnel. Isolate power before wiring, apply 1.5–1.8 Nm terminal torque, and follow relevant IEC/EN 60947 standards and local regulations.