40.31.7.024.0000 Finder 40 Series PCB/plug-in Relay 1P 10A 24V DC

The 40.31.7.024.0000 Finder 40 Series PCB relay is a compact 1-pole 10A switching solution operating at 24V DC, designed for reliable control applications in industrial and commercial environments.

This miniature PCB/plug-in relay delivers versatile switching capabilities with its SPDT contact configuration, making it ideal for control circuits requiring dependable switching of moderate loads. The 40 Series combines compact dimensions with robust performance, offering engineers a space-efficient solution for panel and PCB mounting applications.

Key Features

• Dual Current Rating: 12A when PCB mounted or 10A with socket, providing flexibility for different installation methods and load requirements
• SPDT Contact Configuration: Single pole, double throw (1 CO) arrangement enables switching between two circuits or simple on/off control
• 3.5mm Pin Pitch: Standard spacing ensures compatibility with most PCB layouts and reduces design complexity
• Wide Temperature Range: Operating range of -40°C to +85°C makes it suitable for harsh industrial environments and outdoor applications
• Multiple Mounting Options: PCB direct mounting, socket mounting, or 35mm DIN rail socket installation provides installation flexibility
• AgNi Contact Material: Silver-nickel contacts deliver excellent conductivity and arc resistance for long service life
• DC Sensitive Coil: Optimised for DC control circuits with reliable switching at 24V DC supply voltage
• Compatible Base Range: Works with multiple Finder base options (95.63, 95.03, 95.P3, 95.83.3, 95.93.3, 95.13) for different mounting requirements

Applications

The Finder 40 Series relay is commonly used in industrial automation systems, HVAC control panels, lighting control circuits, and machine control applications. Its compact size makes it particularly suitable for space-constrained control panels, while the multiple mounting options support both PCB integration and modular panel installations. The 24V DC operation makes it compatible with PLC outputs and low-voltage control systems commonly found in manufacturing, building automation, and process control environments.

Standards and Sustainability

This relay is manufactured to IEC standards ensuring reliable performance and international compatibility. The compact design minimises material usage while maintaining robust switching capability.

Manufactured by Finder, order code 40.31.7.024.0000.

Frequently Asked Questions

What's the difference between the 12A and 10A ratings on this relay?

The relay is rated for 12A when mounted directly to a PCB, or 10A when used with a socket base. The higher PCB-mounted rating is due to better heat dissipation through the PCB copper traces, while socket mounting has slightly reduced thermal performance, hence the 10A rating.

Which base sockets are compatible with this 40 Series relay?

This relay is compatible with Finder bases 95.63, 95.03, 95.P3, 95.83.3, 95.93.3, and 95.13. These bases provide different mounting options including PCB socket, DIN rail, and panel mounting configurations to suit various installation requirements.

What does the SPDT contact configuration mean for wiring?

SPDT (Single Pole Double Throw) means the relay has one common terminal that switches between two other terminals - normally open (NO) and normally closed (NC). When the coil is energised, the common contact moves from the NC position to the NO position, allowing you to switch a circuit on/off or change between two different circuits.

Can this relay switch AC loads as well as DC?

Yes, while this relay has a DC coil (24V DC), the contacts can switch both AC and DC loads up to the rated current of 10A/12A. The AgNi contact material provides good performance for both AC and DC switching applications, though specific voltage ratings should be confirmed against the load requirements.

What are the physical dimensions of this relay?

The relay has a width of 12.4mm and uses a standard 3.5mm pin pitch. The pins have a length of 5.2mm for PCB mounting. The compact size and low mass of 0.02kg make it suitable for high-density control panel layouts where space is at a premium.