BF0031D125 - CONTROL RELAY 3NO+1NC 125VDC

Why Choose the BF0031D125?

Lovato’s BF0031D125 control relay delivers dependable switching for modern control circuits. With a DC coil rated at 125 V and a 4-pole configuration featuring 3NO + 1NC auxiliary contacts, it offers versatile logic options. Compact and easy to install via screw fixing or 35 mm DIN rail, this BF0031D125 helps streamline panel builds while maintaining consistent performance across varied applications.

Engineered for longevity and resilience, it boasts a mechanical life of 20,000,000 cycles and operates from -50 to 70 °C. The relay carries a Ui of 690 V, Uimp of 6 kV, and an Ith of 10 A, with terminals tightened to 1.5 to 1.8 Nm. Rated for pollution degree 3 and installations up to 3000 m, it meets IEC/EN, UL and CSA standards.

Key Benefits

• 125 V DC coil for precise, stable control circuit operation.
• 4-pole design with 3NO+1NC for flexible auxiliary switching.
• High insulation rating of 690 V enhances electrical safety margins.
• 6 kV impulse withstand improves resilience against transient surges.
• 10 A Ith current rating supports robust control loads.
• Wide -50 to 70 °C operating range for harsh environments.
• Screw or 35 mm DIN rail mounting speeds panel installation.

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 BF0031D125 control relay
• Basic installation and safety information

Applications

• Control circuit logic and interlocking in automation panels
• Auxiliary switching in machinery and process control systems
• Signalling and interface tasks in low-voltage assemblies
• Retrofits or panel upgrades requiring 125 V DC coil relays

Safety note: Installation and maintenance must be performed by qualified personnel with power isolated. Tighten terminals to 1.5 to 1.8 Nm and follow applicable IEC/EN 60947 standards and site safety procedures.