40.61.9.006.1000 Finder Miniature PCB relay 1pole 16A DC 6V

Finder 40.61.9.006.1000 – 6 V DC 16 A Miniature PCB Relay, 1CO / SPDT

The Finder 40.61.9.006.1000 is a compact 6 V DC miniature electromagnetic power relay from the Finder 40 Series, designed for dependable electrical switching in industrial automation, electronic control equipment and printed circuit board assemblies. Combining a 16 A rated contact current with a single changeover contact (1CO / SPDT), it provides a versatile switching solution for equipment requiring control of a separate electrical circuit.

Its standard 6 V DC coil has a nominal power consumption of approximately 0.65 W, a nominal resistance of 55 Ω and a rated coil current of approximately 109 mA. This configuration is particularly suitable for electronic control systems designed around a regulated 6 V DC supply.

The changeover contact arrangement provides both normally open and normally closed switching functions. It can therefore be used for load control, signal changeover and equipment interlocking applications where the electrical ratings and safety requirements are satisfied.

The Finder 40.61 family also offers reinforced coil-to-contact insulation, compact construction and compatibility with appropriate PCB mounting arrangements. These characteristics make it a practical choice for engineers designing reliable, space-efficient electrical control assemblies.

Key Advantages

• 16 A rated contact current for compatible electrical loads.
• 6 V DC standard coil for low-voltage control circuits.
• One changeover contact (1CO / SPDT) for versatile switching.
• 0.65 W nominal coil consumption.
• 55 Ω nominal coil resistance for predictable driver design.
• Monostable operation returns the contact to its normal position when coil power is removed.
• Compact miniature housing helps conserve PCB space.
• 250 V AC rated contact voltage for suitable applications.
• 4,000 VA AC-1 switching capacity within the published 40.61 family rating.
• Reinforced coil-to-contact insulation supports separation of control and load circuits.
• 6 kV coil-to-contact impulse withstand capability.
• 8 mm coil-to-contact creepage and clearance design.
• 5 mm contact terminal pitch for compact mounting arrangements.
• Suitable for automation, electronic equipment and control systems.
• Finder 40 Series engineering for professional switching applications.

Key Features

• Finder 40 Series miniature power relay.
• Type 40.61 single-pole construction.
• 6 V DC nominal coil voltage.
• Standard DC coil version, identified by ordering code 9.006.
• Approximately 0.65 W nominal coil power.
• 55 Ω nominal coil resistance.
• Approximately 109 mA nominal coil current.
• One changeover contact (1CO).
• SPDT / Form C switching arrangement.
• 16 A rated contact current.
• 250 V AC rated contact voltage.
• 400 V AC maximum switching voltage.
• 4,000 VA rated AC-1 switching capacity.
• Monostable, non-latching operation.
• Compact PCB/plug-in relay family design.
• 5 mm contact terminal pitch.
• Reinforced coil-to-contact insulation.
• 6 kV impulse insulation between coil and contacts.
• 8 mm coil-to-contact creepage and clearance.
• Approximately 29 × 12.4 × 25.1 mm body dimensions.
• −40 to +85 °C published family operating temperature range.

How the Finder 40.61.9.006.1000 Relay Works

The Finder 40.61.9.006.1000 uses an electromagnetic coil to operate a mechanical changeover contact. The 6 V DC coil forms the control circuit, while the relay contacts provide a separate path for switching a compatible electrical load.

When the coil is de-energised, the common contact is connected to the normally closed (NC) terminal. Applying the appropriate DC voltage energises the coil and moves the common contact to the normally open (NO) terminal.

Removing the coil voltage allows the spring mechanism to return the contact to its original position. This monostable operation is useful where a circuit must return to a predetermined switching state when the control supply is removed.

The relay uses a standard DC coil rather than a sensitive DC coil. Its nominal resistance of 55 Ω corresponds to approximately 109 mA at 6 V DC, with nominal consumption of around 0.65 W.

The controlling circuit must be capable of supplying this coil current. Many microcontroller output pins cannot deliver approximately 109 mA directly, so a suitably rated transistor, MOSFET or relay-driver circuit is generally required.

Where a semiconductor driver is used, an appropriate flyback diode or alternative inductive transient suppression device should be considered. Suppression components must be selected for the coil voltage and the application's required release time.

16 A Switching Performance

The Finder 40.61 relay family provides a 16 A rated changeover contact for compatible electrical loads. The published 4,000 VA AC-1 rating applies to the specified resistive-load conditions.

The actual permissible current depends on the load characteristics. Inductive loads, motors, transformers, LED drivers and electronic power supplies may require substantially lower switching currents because of inrush current or electrical arcing.

The 400 V AC maximum switching voltage must not be interpreted as permission to switch the full 16 A current at 400 V AC. The relevant switching capacity and application category must be checked.

DC switching also requires additional attention. The relay's ability to interrupt a DC load decreases as the contact voltage increases, and the 6 V DC coil voltage does not determine the allowable voltage or current of the switched circuit.

For dependable operation, engineers should assess the load's steady-state current, switch-on inrush, operating frequency and required electrical endurance against Finder's published switching data.

PCB Mounting and Electrical Integration

The Finder 40.61 is a miniature relay design with an approximately 29 × 12.4 × 25.1 mm body and 5 mm contact terminal pitch. These dimensions support integration into compact electronic control equipment.

When the relay is soldered directly onto a PCB, the circuit board must provide suitable copper track capacity, thermal management and electrical spacing for the intended load.

Some Finder 40.61 variants support compatible Finder 95 Series sockets, while others use shorter PCB-only terminal pins. The exact mounting arrangement for 40.61.9.006.1000 should therefore be confirmed before selecting a socket or PCB footprint.

The 40.61 family provides reinforced coil-to-contact insulation with a published 6 kV impulse withstand capability and 8 mm creepage and clearance design.

These insulation characteristics support separation between control and load circuits, but the finished equipment must still meet the applicable electrical safety requirements, including overcurrent protection, conductor separation and suitable enclosure design.

Typical Applications

• Industrial automation control boards.
• 6 V DC electronic control systems.
• PCB-based electrical load switching.
• Machine control electronics.
• Electrical signal changeover circuits.
• Electronic power management equipment.
• Building automation controllers.
• Industrial monitoring and alarm systems.
• Control of appropriately rated auxiliary loads.
• Remote switching equipment.
• Electronic instrumentation.
• Embedded control assemblies.
• Industrial equipment manufacturing.
• Electronic equipment maintenance.
• Replacement of compatible Finder 40.61 relay variants.