Why Choose the Finder 45.31.7.012.4310 Miniature PCB Power Relay?
The Finder 45.31.7.012.4310 is a compact and reliable 16 A miniature PCB power relay designed for electrical switching in industrial automation, electronic control equipment and appliance control systems. As part of the Finder 45 Series miniature PCB relay range, it features a 12 V DC sensitive coil, a single normally open contact and a high-insulation construction suitable for printed circuit board applications.
This relay provides dependable switching between low-voltage electronic control circuits and external electrical loads. Its sensitive DC coil has a nominal power consumption of just 0.36 W, helping reduce control circuit power requirements. The single-pole normally open contact arrangement allows connected equipment to be energised when the relay coil is activated, making it suitable for electronic controllers, switching interfaces and automated equipment.
With a 16 A rated contact current, a 12 V DC coil and a 250 V AC rated contact voltage, the Finder 45.31.7.012.4310 is suitable for controlling compatible electrical loads in heating equipment, industrial machinery and building automation systems. Its miniature PCB-mounted construction and high electrical insulation make it particularly useful where reliable switching and compact installation are essential.
Key Advantages
- Compact 16 A miniature PCB power relay for industrial and electronic control applications.
- 12 V DC sensitive coil suitable for appropriately designed low-voltage control circuits.
- Single normally open contact (SPST-NO) for straightforward load switching.
- 250 V AC rated contact voltage for compatible mains-voltage applications.
- Low 0.36 W coil consumption helps minimise control circuit power requirements.
- 6 kV impulse insulation between coil and contacts supports electrical separation.
- High contact separation suited to applications requiring increased electrical isolation.
- −40 to +105 °C operating temperature range supports use in demanding equipment environments.
- Direct PCB mounting simplifies integration into electronic assemblies and OEM equipment.
Key Features
- Finder 45 Series miniature electromechanical power relay.
- 45.31 relay type with one normally open contact.
- SPST-NO / 1 NO contact configuration.
- 12 V DC nominal coil voltage.
- 16 A rated contact current.
- 250 V AC rated contact voltage.
- 400 V AC maximum switching voltage for the 45.31 relay family.
- 0.36 W sensitive DC coil.
- 400 Ω nominal coil resistance.
- 30 mA nominal coil current.
- 6 kV coil-to-contact impulse withstand voltage.
- Reinforced insulation between coil and contacts.
- RT II flux-proof construction.
- Cadmium-free contact technology.
- Through-hole PCB mounting with solder terminals.
- Non-latching electromechanical operation.
Reliable Electrical Switching for Industrial Automation
Electromechanical relays such as the Finder 45.31.7.012.4310 allow low-voltage electronic control circuits to switch separate electrical loads through an electromagnetic mechanism. When the 12 V DC coil is energised, the internal normally open contact closes, completing the connected load circuit. When the coil is de-energised, the contact returns to its open position, disconnecting the switched circuit.
The Finder 45 Series is designed for equipment manufacturers and automation engineers requiring reliable electrical switching, compact PCB integration and high insulation between control and load circuits. The sensitive coil design helps minimise power consumption, while the reinforced insulation and high contact separation characteristics support use in appliance controllers, heating equipment and industrial electronic systems. Load-specific switching ratings should be checked when controlling motors, inductive loads or equipment with high inrush currents.
Typical Applications
- Industrial electronic control boards and automation equipment.
- Heating, ventilation and air conditioning controllers.
- Boiler, burner and heating control systems.
- Domestic and commercial appliance control boards.
- Industrial machinery switching interfaces.
- Building automation and electrical control systems.
- PLC interface circuits and electronic switching modules.
- Lighting control and switching equipment.
- Electronic timers and control modules.
- OEM electronic assemblies and PCB-based equipment.
