BF0031D048 - CONTROL RELAY 3NO+1NC 48VDC

Why Choose the BF0031D048?

Lovato's BF0031D048 is a robust control relay for AC and DC control circuits, featuring a 48 V DC coil and 4 poles with 3NO+1NC auxiliary contacts. Designed for screw or 35 mm DIN rail mounting, this BF00 series device delivers reliable signalling and interlocking performance in panels. Rated Ui 690 V and Uimp 6 kV, it supports demanding industrial environments.

With Ith (IEC) 10 A and a mechanical life of 20,000,000 cycles, this control relay offers long-term durability. It operates from -50 to 70 °C up to 3000 m altitude, with terminals tightened to 1.5–1.8 Nm. Conforming to IEC/EN 60947-1 and 60947-5-1, it suits pollution degree 3 environments across a wide range of automation applications.

Key Benefits

• 48 V DC coil for dependable control in DC-powered circuits.
• Four-pole design with 3NO+1NC auxiliary contacts for flexibility.
• High insulation rating Ui 690 V; impulse withstand up to 6 kV.
• Long mechanical life of 20,000,000 cycles reduces maintenance.
• Operates from -50 to 70 °C for harsh environments.
• Screw or 35 mm DIN rail mounting simplifies panel installation.
• Complies with IEC/EN, UL, and CSA standards for global use.

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 BF0031D048 control relay
• Product datasheet (PDF link via manufacturer)
• Basic installation and safety information

Applications

• Control circuit switching in industrial automation panels
• Signalling and interlocking in machinery and process control
• Interface relay for PLC and auxiliary control tasks
• HVAC and building services control panels
• Motor control auxiliaries and contactor logic

Safety note: Installation must be performed by qualified personnel. Verify the 48 V DC coil rating, tighten terminals to 1.5–1.8 Nm, and install in accordance with IEC/EN 60947 and pollution degree 3 conditions.