BF0040A110 - CONTROL RELAY 4NO 110V 50/60HZ

Why Choose the BF0040A110?

Lovato’s BF0040A110 is a robust control relay for industrial control circuits, featuring an AC coil rated 110 VAC at 50/60Hz and four normally open auxiliary contacts. Part of the control relays with AC and DC control circuit range, it provides four poles and straightforward integration via screw or 35 mm DIN rail mounting. With rated insulation voltage of 690 V and 6 kV impulse withstand, it delivers dependable auxiliary switching in control panels.

Engineered for endurance, the BF00 series device offers 10 A Ith, a mechanical life of 20,000,000 cycles and reliable operation from −50 to 70 °C up to 3000 m altitude. Terminal connections are secured with 1.5 to 1.8 Nm torque. Conformity with IEC/EN 60947-1 and 60947-5-1, plus UL and CSA equivalents, supports use in compliant installations and documentation requirements.

Key Benefits

• Reliable 110 VAC coil for 50/60Hz mains control circuits.
• Four normally open contacts for straightforward auxiliary switching.
• High insulation rating 690 V Ui enhances electrical safety margin.
• 6 kV impulse withstand improves surge robustness.
• 10 A thermal current (Ith) supports common control loads.
• Wide operating temperature −50 to 70 °C for harsh environments.
• Quick screw or 35 mm DIN rail mounting flexibility.
• Long mechanical life of 20,000,000 cycles reduces maintenance.

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: 358 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 BF0040A110 control relay
• Installation and safety instructions
• Manufacturer datasheet (download)
• Protective packaging

Applications

• Industrial control circuits and auxiliary switching
• Control panels and automation cabinets
• Signal interfacing and interlocking schemes
• Distribution boards requiring 4NO contact arrangements
• OEM machinery control assemblies

Safety note: Isolate power before installation and use only by qualified personnel. Tighten terminals to 1.5–1.8 Nm and observe the stated temperature limits and applicable standards.