Finder 40.61.8.024.4000 PCB-tehorele 24V AC 16A 1 CO

When a control signal must switch a heavy AC load from a printed circuit board, a compact and reliable PCB power relay is essential. The Finder 40.61.8.024.4000 is a single-pole changeover (SPDT) relay that handles up to 16 A at 250 V AC, with a maximum switching power of 4000 VA. Its 24 V AC coil consumes only 1.2 VA, making it suitable for direct drive from many controllers and transformers.

Who is it for

This relay is intended for engineers and technicians designing or servicing industrial control panels, HVAC systems, home automation, and other applications where a PCB-mounted relay must switch resistive or slightly inductive loads. It fits standard 5-pin PCB footprints and is easy to integrate into new or existing designs.

Main features

• 1 CO (SPDT) contact configuration
• Rated current: 16 A at 250 V AC
• Max switching power: 4000 VA (AC1)
• Coil voltage: 24 V AC, 1.2 VA consumption
• Reinforced insulation between coil and contacts
• Dielectric strength: 5000 V AC coil-contact, 1000 V AC open contacts
• Contact material: AgCdO (silver cadmium oxide)
• Operating temperature range: -40 to +85 °C
• Electrical life: 100,000 cycles at rated load
• Mechanical life: 10,000,000 cycles
• PCB mounting with 5 pins

Specifications

• Product type: PCB Power Relay
• Series: Finder Series 40.61
• Contact configuration: 1 CO (1 Form C / SPDT)
• Rated current: 16 A
• Rated voltage: 250 V AC
• Max switching power (AC1): 4000 VA
• Coil voltage: 24 V AC
• Coil power consumption: 1.2 VA
• Dielectric strength (coil-contact): 5000 V AC
• Dielectric strength (open contacts): 1000 V AC
• Contact material: AgCdO
• Mounting type: PCB
• Number of pins: 5
• Operating temperature range: -40 to +85 °C
• Electrical life (at rated load): 100,000 cycles
• Mechanical life: 10,000,000 cycles
• Insulation: Reinforced insulation

Tips

For inductive loads such as motors or solenoids, consider using a snubber or varistor across the contacts to extend electrical life. Ensure adequate PCB trace widths for the load current and provide proper clearance between coil and contact circuits. The relay is suitable for wave soldering; follow the manufacturer's recommended soldering profile.