Finder 45.71.7.009.1410 – 45 Series Miniature PCB relays

Why Choose the Finder 45.71.7.009.1410 Miniature Power Relay?

The Finder 45.71.7.009.1410 is a compact 16 A miniature electromechanical power relay from the Finder 45 Series, designed for PCB-mounted switching applications requiring a sensitive DC coil and robust electrical connections. Featuring a 9 V DC nominal coil, single normally closed contact (SPST-NC / 1 NC) and silver-nickel (AgNi) contact material, this relay offers a practical switching solution for compatible industrial and OEM equipment.

The relay combines PCB-mounted coil connections with Faston 250 contact terminals, allowing convenient integration into equipment where the switching contacts require separate push-on electrical connections. Its 16 A rated contact current and 250 V AC rated contact voltage make it suitable for appropriately rated resistive and control loads.

Designed for demanding equipment environments, the Finder 45.71 relay family offers a high maximum ambient temperature of +125 °C, reinforced insulation between the coil and contacts, and a compact construction. The 45.71.7.009.1410 is particularly useful where a normally closed contact is required to change state when a low-voltage DC control signal is applied.

Key Advantages

• 9 V DC nominal coil for compatible low-voltage electronic control circuits.
• 16 A rated contact current for suitably rated electrical switching applications.
• Normally closed contact arrangement (SPST-NC) provides a closed switching path when the coil is de-energised.
• Silver-nickel (AgNi) contact material offers a cadmium-free contact solution.
• Sensitive DC coil design helps minimise control-circuit power consumption.
• PCB coil connections and Faston 250 contact terminals provide a versatile mounting arrangement.
• 250 V AC rated contact voltage for compatible mains-voltage loads.
• 4,000 VA AC1 switching capacity for suitable resistive loads.
• High-temperature relay family designed for ambient temperatures up to +125 °C.
• 6 kV coil-to-contact impulse withstand supports electrical isolation.
• 8 mm coil-to-contact clearance and creepage provides reinforced insulation.
• RT II flux-proof construction for suitable PCB manufacturing processes.
• Monostable operation automatically restores the normally closed contact when coil power is removed.

Key Features

• Finder 45 Series miniature PCB power relay.
• Manufacturer part number: 45.71.7.009.1410.
• Relay type: 45.71.
• Nominal coil voltage: 9 V DC.
• Coil technology: Sensitive DC.
• Contact arrangement: 1 NC / SPST-NC.
• Number of poles: 1.
• Rated contact current: 16 A.
• Rated contact voltage: 250 V AC.
• Maximum AC switching voltage: 400 V AC.
• Contact material: AgNi.
• Nominal sensitive DC coil consumption: 0.36 W for the standard 45.71 coil family.
• Contact terminals: Faston 250.
• Coil mounting: PCB through-hole terminals.
• Environmental protection: RT II flux-proof.
• Coil-to-contact insulation: Reinforced.
• Maximum specified ambient temperature: +125 °C.
• Operating principle: Monostable / non-latching.

Reliable Normally Closed Switching for Industrial and OEM Equipment

The Finder 45.71.7.009.1410 operates through a sensitive 9 V DC electromagnetic coil and a single normally closed contact. When the coil is not energised, the contact remains closed. Applying the appropriate DC coil voltage energises the relay and opens the contact, interrupting the connected circuit. Once the coil supply is removed, the contact returns to its normally closed position.

This SPST-NC switching arrangement is useful for control circuits where an electrical path must remain closed until a command signal is applied. Potential applications include auxiliary control functions, equipment monitoring, electrical interlocking and switching arrangements designed around normally closed relay operation.

The Finder 45.71 family is designed for PCB installation with separate Faston 250 connections for the power contacts. Its reinforced coil-to-contact insulation and high-temperature capability make it attractive for appropriately engineered electrical equipment. The relay's load current, temperature, switching frequency and protective arrangements must be checked against the applicable manufacturer ratings.

Typical Applications

• Industrial automation control circuits.
• OEM electrical and electronic equipment.
• PCB-based machinery control systems.
• Heating and temperature-control equipment.
• Electrical interlocking circuits.
• Auxiliary control and monitoring circuits.
• Industrial appliance control boards.
• Power switching within compatible control assemblies.
• Equipment requiring normally closed relay operation.
• High-temperature electrical equipment within specified operating limits.
• Maintenance and replacement of compatible Finder 45.71 relay assemblies.