BF0004D125 - CONTROL RELAY 4NC 125VDC

Why Choose the BF0004D125?

Lovato BF0004D125 is a control relay with AC and DC control circuit designed for robust industrial panels. It features a 125 V DC coil and four normally closed auxiliary contacts (4NC) across four poles, providing reliable control and isolation. With versatile screw or 35 mm DIN rail mounting, Ui 690 V and Uimp 6 kV ratings, it fits demanding control applications.

Built for longevity and tough environments, this relay delivers 20,000,000 mechanical cycles and operates from -50 to 70 °C. It carries an Ith of 10 A, allows secure terminations at 1.5–1.8 Nm, and performs at altitudes up to 3000 m, Pollution Degree 3. Conforms to IEC/EN 60947-1 and 60947-5-1, UL 60947-1 and 60947-5-1, and CSA C22.2 n° 60947-1 and 60947-5-1 for dependable performance.

Key Benefits

• 125 V DC coil for stable control in DC circuits.
• Four normally closed auxiliary contacts across four poles.
• High insulation rating Ui 690 V improves safety margins.
• 6 kV impulse withstand resists transient overvoltages.
• Wide operating range (-50 to 70 °C) for harsh environments.
• 20,000,000 mechanical cycles for long service life.
• Screw or 35 mm DIN rail mounting for flexible installation.
• Ith 10 A supports robust control current handling.

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 BF0004D125 control relay
• Manufacturer datasheet (download via link)
• Compliance and certification details
• Protective packaging for transit

Applications

• Industrial control panels and automation cabinets
• Control circuits requiring normally closed contact interlocking
• Installations exposed to wide ambient temperature variations
• Systems operating up to 3000 m altitude
• Equipment needing high insulation and impulse withstand capability

Safety note: Install and commission by qualified personnel to applicable standards. Observe the specified ratings, tightening torque and environmental limits, and isolate power before wiring or maintenance.