BF0040D125 - CONTROL RELAY 4NO 125VDC

Why Choose the BF0040D125?

Designed for dependable control circuits, the Lovato BF0040D125 control relay delivers precise switching with a 125 V DC coil and four normally-open contacts. This 4‑pole unit fits screw or 35 mm DIN rail mounting for fast panel integration. Rated Ui 690 V with 6 kV impulse withstand and Ith 10 A, it supports robust industrial performance while meeting IEC/EN, UL and CSA standards.

Built for longevity and harsh environments, the BF00 series relay achieves 20,000,000 mechanical operations and operates from -50 to 70 °C at altitudes up to 3000 m. Pollution degree 3 design and 1.5 to 1.8 Nm terminal torque enhance connection reliability. With four NO auxiliaries and 10 A thermal rating, it suits panel builders and OEMs seeking durable, standards-compliant control relays.

Key Benefits

• 125 V DC coil ensures reliable actuation in DC control circuits.
• Four NO auxiliary contacts provide flexible multi-circuit switching.
• Rated insulation 690 V and 6 kV impulse withstand enhance safety.
• 10 A Ith handles common control loads and signalling duties.
• Built for longevity with 20,000,000 mechanical operations.
• Operates from -50 to 70 °C for harsh environments.
• Screw or 35 mm DIN rail mounting speeds installation.
• Complies with IEC/EN, UL and CSA standards for global acceptance.

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 BF0040D125 control relay
• Manufacturer datasheet (downloadable)
• Installation and safety information

Applications

• Industrial control panels and automation cabinets
• Machine interlocking and signalling circuits
• PLC interface and auxiliary switching tasks
• HVAC and building services control systems
• Process equipment start/stop and status circuits

Safety note: Install and commission only by qualified personnel in accordance with IEC/EN 60947 and local regulations. De-energise circuits before work and tighten terminals to 1.5–1.8 Nm within specified temperature limits.