BF0040A04860 - CONTROL RELAY 4NO 48/60

Why Choose the BF0040A04860?

The Lovato BF0040A04860 is a compact control relay engineered for reliable switching in industrial control circuits. Featuring an AC coil (60 Hz) rated at 48 VAC and four normally open contacts across four poles, it integrates cleanly into panels via screw or 35 mm DIN rail mounting. As a versatile control relay, it delivers dependable performance for interlocking, signalling and auxiliary functions in machinery and building services.

Built for endurance, the BF00 series device offers a 10 A Ith, 690 V Ui and 6 kV impulse withstand, with mechanical life up to 20,000,000 cycles. It operates from −50 to 70 °C and up to 3000 m altitude, meeting IEC/EN 60947-1 and 60947-5-1 plus UL and CSA equivalents. Terminal screws tighten to 1.5–1.8 Nm for secure wiring and long-term reliability.

Key Benefits

• 48 VAC, 60 Hz AC coil for straightforward panel power integration.
• Four NO auxiliary contacts provide clear, fail-safe signalling paths.
• Rated Ui 690 V and Uimp 6 kV for robust insulation and surges.
• 10 A Ith supports a wide range of control circuit loads.
• Screw or 35 mm DIN rail mounting simplifies installation and retrofits.
• Long 20,000,000-cycle mechanical life reduces maintenance interventions.
• Wide operating temperature −50 to 70 °C suits harsh environments.

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: 367 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 BF0040A04860 control relay
• Manufacturer documentation/data sheet
• Original manufacturer packaging

Applications

• Industrial control panels and MCC auxiliary circuits
• Machinery interlocking, signalling and logic functions
• Building services and HVAC control circuits
• OEM equipment and process automation panels

Safety note: Install and service only by qualified personnel. De-energise circuits before wiring, observe the specified 1.5–1.8 Nm terminal torque, and follow IEC/EN standards and local regulations.