40.31.7.012.0000 Finder 40 Series PCB/plug-in Relay 1P 10A 12V DC

The Finder 40.31.7.012.0000 is a compact 1-pole PCB relay rated at 12A (PCB mounted) or 10A (with socket), designed for 12V DC sensitive applications in industrial automation and control systems.

This miniature relay from Finder's renowned 40 Series offers exceptional versatility for space-constrained applications where reliable switching is critical. The sensitive DC coil design ensures consistent operation even in challenging electrical environments, making it ideal for control panels, automation systems, and electronic equipment where board space is at a premium.

Key Features

• Dual Current Ratings: 12A when PCB mounted or 10A with socket provides flexibility for different installation methods and load requirements
• Sensitive DC Coil: Optimized for reliable operation in DC circuits with minimal power consumption and enhanced switching accuracy
• SPDT Contact Configuration: Single changeover contact (1 CO) enables both normally open and normally closed switching in one compact unit
• Multiple Mounting Options: Compatible with direct PCB mounting, socket mounting, or 35mm DIN rail installation for maximum installation flexibility
• Wide Operating Temperature Range: Functions reliably from -40°C to +85°C, suitable for harsh industrial environments
• AgNi Contact Material: Silver-nickel contacts provide excellent conductivity and resistance to contact welding under high currents
• Compact 3.5mm Pin Pitch: Space-efficient design at just 12.4mm wide allows for high-density PCB layouts
• Compatible Socket Range: Works with Finder bases 95.63, 95.03, 95.P3, 95.83.3, 95.93.3, and 95.13 for easy maintenance and replacement

Applications

The Finder 40.31.7.012.0000 PCB relay is commonly used in industrial control panels, automation systems, HVAC controls, and electronic equipment requiring reliable DC switching. Its compact form factor makes it particularly suitable for applications where PCB space is limited, such as motor control circuits, lighting control systems, valve control, and general purpose switching in industrial machinery. The relay's sensitive DC coil design makes it ideal for interfacing with PLC outputs and electronic control circuits.

Standards and Compliance

This Finder 40 Series relay meets international standards for industrial relay applications, ensuring reliable performance and safety in commercial and industrial installations.

Manufactured by Finder, this relay carries the product code 40.31.7.012.0000 (alternate: 403170120000).

Frequently Asked Questions

What's the difference between the 12A and 10A current ratings?

The Finder 40.31.7.012.0000 is rated at 12A when mounted directly to a PCB, but 10A when used with a socket. This difference is due to the additional thermal resistance introduced by the socket connection, which slightly reduces the maximum safe current carrying capacity.

Which Finder sockets are compatible with this relay?

This relay is compatible with Finder socket bases: 95.63, 95.03, 95.P3, 95.83.3, 95.93.3, and 95.13. These sockets provide options for PCB mounting, DIN rail mounting, and panel mounting depending on your installation requirements.

What does "sensitive DC" coil mean and why is it important?

The sensitive DC coil design means this relay is optimized for reliable operation with DC control voltages, providing consistent pickup and dropout characteristics. This is particularly important in electronic control applications where the relay interfaces with PLC outputs, microcontrollers, or other electronic switching devices that may have limited current drive capability.

What are the physical dimensions and pin specifications?

The relay measures just 12.4mm in width with a 3.5mm pin pitch and 5.2mm pin length. This compact footprint makes it suitable for high-density PCB layouts while the standard pin dimensions ensure compatibility with common PCB hole patterns and socket configurations.

Can this relay be used for AC loads?

While this relay has a 12V DC coil, the SPDT contacts with AgNi (silver-nickel) material can switch both AC and DC loads up to the rated current capacity. However, always verify that your specific load type and switching frequency are within the relay's specifications for your application.