40.61.9.012.1000 Finder Miniature PCB relay 1pole 16A DC 12V

Why Choose the Finder 40.61.9.012.1000 Miniature Power Relay?

The Finder 40.61.9.012.1000 is a compact 16 A miniature electromechanical power relay from the Finder Series 40 range, designed for industrial automation, electronic control equipment and electrical switching applications. Featuring a 12 V DC standard coil, one changeover contact (1 CO / SPDT) and silver nickel (AgNi) contact material, this relay provides a dependable interface between low-voltage control circuits and compatible electrical loads.

With a nominal coil consumption of 0.65 W and a coil resistance of 220 Ω, the Finder 40.61.9.012.1000 is suitable for equipment using an appropriately rated 12 V DC control supply. Its changeover contact provides both normally open and normally closed connections, enabling flexible switching, signalling and auxiliary control functions.

The relay combines a 16 A rated contact current, 250 V AC rated contact voltage and 400 V AC maximum switching voltage in a compact housing. It supports direct printed circuit board installation or mounting using compatible Finder Series 95 sockets, making it suitable for original equipment manufacturers, control panel builders and maintenance engineers.

The 40.61.9.012.1000 is particularly useful where a compact, non-latching relay with a standard DC coil and cadmium-free contacts is required. Its established Series 40 design offers a practical combination of switching capacity, electrical insulation and installation flexibility.

Key Advantages

• 16 A rated contact current: Supports compatible industrial and electrical switching loads.
• 12 V DC standard coil: Suitable for low-voltage electronic and industrial control systems.
• 0.65 W nominal coil consumption: Provides efficient operation from an appropriately rated control circuit.
• Single changeover contact: Offers normally open and normally closed switching functions.
• Silver nickel contacts: AgNi contact material provides a cadmium-free solution for general-purpose switching.
• 250 V AC rated contact voltage: Supports suitable mains-voltage switching applications.
• 400 V AC maximum switching voltage: Provides flexibility within the manufacturer's specified switching limits.
• Monostable operation: Returns the contacts to their normal position when the coil is de-energised.
• Compact construction: Helps conserve space in electronic assemblies and control panels.
• PCB and socket mounting: Supports direct circuit board integration and compatible plug-in installations.
• 6 kV impulse insulation: Provides electrical separation between the control coil and switching contacts.
• RT II flux-proof construction: Supports appropriate electronic assembly and soldering processes.
• Established Finder Series 40 design: Suitable for automation, machinery control and electrical maintenance applications.

Key Features

• Finder Series 40 miniature electromechanical power relay.
• Type 40.61 single-pole relay construction.
• 12 V DC standard operating coil.
• 0.65 W nominal DC coil consumption.
• 220 Ω nominal coil resistance.
• Approximately 55 mA nominal coil current.
• One changeover contact (1 CO / SPDT).
• 16 A rated contact current.
• 250 V AC rated contact voltage.
• 400 V AC maximum switching voltage.
• Silver nickel (AgNi) contact material.
• Cadmium-free contact construction.
• Monostable, non-latching operation.
• Direct PCB or compatible Finder Series 95 socket mounting.
• 5 mm contact pin pitch.
• 6 kV coil-to-contact impulse insulation.
• RT II flux-proof environmental protection.
• Compact housing measuring approximately 29 × 12.4 × 25 mm.

Reliable 12 V DC Switching for Industrial Automation and Electronic Control

The Finder 40.61.9.012.1000 provides a compact electromechanical switching interface between a 12 V DC control circuit and an electrically isolated contact circuit. When the operating coil is energised, the common contact transfers from the normally closed connection to the normally open connection. Removing the coil supply allows the internal spring mechanism to return the contacts to their original position.

This monostable operating principle is particularly useful in conventional control applications where the switched output must follow the energised or de-energised condition of the control signal. Typical functions include auxiliary circuit switching, equipment status indication, electrical interlocking and load control.

The relay's standard DC coil has a nominal resistance of 220 Ω and consumes approximately 0.65 W at its rated 12 V DC supply. Its nominal coil current is approximately 55 mA, making it suitable for electronic relay drivers and control interfaces capable of supplying the required current.

Where the coil is controlled by a semiconductor output, suitable suppression should be considered to limit inductive voltage transients during switching. The suppression method should be selected with regard to the required relay release time and the characteristics of the controlling device.

The 16 A contact rating provides switching capability for a variety of compatible electrical loads. The Finder Series 40 contact specification includes a 4,000 VA AC-1 resistive load rating and a 750 VA AC-15 inductive load rating at 230 V AC. These ratings apply to different electrical load conditions and should not be treated as interchangeable.

Applications involving motors, transformers, contactor coils, capacitive loads or LED drivers may generate elevated inrush currents. For these installations, engineers should consider the actual load characteristics, switching frequency and electrical endurance requirements rather than relying solely on the nominal 16 A contact rating.

The relay uses silver nickel (AgNi) contact material, providing a cadmium-free contact solution for suitable general-purpose switching applications. AgNi contacts are widely used in electromechanical relays where reliable operation and appropriate contact performance are required.

The Finder Series 40 design provides 6 kV impulse insulation and 8 mm clearance and creepage distance between coil and contacts. These characteristics support electrical separation between control and switched circuits when the relay is installed in equipment with appropriate insulation coordination.

For installation, the Finder 40.61.9.012.1000 supports direct PCB mounting or compatible Finder Series 95 socket arrangements. The selected mounting method must account for terminal configuration, current rating and installation conditions. Finder specifies that the allowable current when mounted in a socket can be lower than the relay's direct PCB contact rating.

Its RT II flux-proof construction supports appropriate electronic assembly processes by helping prevent soldering flux from entering the relay mechanism. RT II construction should not be confused with RT III wash-tight protection, which is intended for applications requiring additional sealing during suitable cleaning processes.

For maintenance or replacement, the complete 40.61.9.012.1000 ordering code should be checked. Similar Finder Series 40 relays may have different coil voltages, coil sensitivities, contact materials, environmental protection options or terminal arrangements.

Typical Applications

• Industrial automation and machinery control.
• Electronic control equipment using 12 V DC supplies.
• Printed circuit board switching assemblies.
• Electrical control panels and auxiliary circuits.
• Industrial process control and monitoring systems.
• Building automation and electrical control equipment.
• Automatic door and gate control systems.
• Blind, grille and shutter automation.
• Electronic circuit board manufacturing.
• Vending machine control equipment.
• Power management and compatible load switching.
• Control signalling and status indication.
• Electrical interlocking and auxiliary switching.
• OEM electronic equipment manufacturing.
• Compatible Finder Series 95 socket-based installations.
• Maintenance and replacement of matching Finder Series 40 relays.