Why Choose the Finder 40.61.7.009.4301 Miniature Power Relay?
The Finder 40.61.7.009.4301 is a miniature 16 A electromechanical power relay from the Finder Series 40 range, designed for industrial automation, electronic control equipment and electrical load switching. Featuring a 9 V DC sensitive coil, a single normally open contact and silver tin oxide contact material, this relay provides a compact switching solution for applications requiring dependable operation from a low-power control circuit.
Unlike the standard changeover versions of the Finder 40.61 family, the 40.61.7.009.4301 features a normally open (1 NO / SPST-NO) contact configuration. Its AgSnO2 contact material offers favourable performance for compatible loads with elevated switching inrush currents, while its 16 A rated contact current supports a range of electrical control and power-switching applications.
This particular variant incorporates RT III wash-tight environmental protection, providing additional protection during suitable electronic assembly processes. Its plug-in construction allows installation using a compatible Finder Series 95 relay socket, making it suitable for industrial control panels and equipment where compact dimensions and serviceability are important.
Key Advantages
- 16 A rated contact current for compatible industrial and electrical loads.
- 9 V DC sensitive coil supports low-voltage electronic control systems.
- Single normally open contact provides straightforward load switching.
- Silver tin oxide (AgSnO2) contacts offer suitable characteristics for loads with significant inrush currents.
- RT III wash-tight construction provides enhanced environmental sealing.
- 0.5 W nominal coil consumption reduces control circuit power requirements.
- Monostable operation returns the contact to its normally open position when the coil is de-energised.
- Compact miniature housing helps conserve installation space.
- Plug-in mounting arrangement supports installation with compatible relay sockets.
- 250 V AC rated contact voltage supports suitable mains-voltage switching applications.
- 6 kV coil-to-contact impulse insulation supports electrical separation between control and switched circuits.
- Finder Series 40 compatibility supports integration into established relay interface systems.
Key Features
- Finder Series 40 miniature electromechanical relay.
- Type 40.61 single-pole power relay.
- 9 V DC sensitive operating coil.
- 0.5 W nominal coil power.
- 16 A rated contact current.
- 1 NO / SPST-NO contact configuration.
- 250 V AC rated contact voltage.
- 400 V AC maximum switching voltage.
- Silver tin oxide (AgSnO2) contact material.
- Monostable, non-latching switching mechanism.
- RT III wash-tight environmental protection.
- 5 mm contact pin pitch.
- Plug-in connection arrangement.
- Compatible Finder Series 95 socket mounting options.
- Compact Series 40 housing.
- Electrical isolation between coil and contacts.
- Suitable for industrial automation and electronic switching equipment.
Reliable Switching for Industrial Automation and Electronic Control
The Finder 40.61.7.009.4301 provides an electromechanical interface between a low-voltage DC control circuit and a compatible electrical load. When the 9 V DC coil is energised, the relay closes its normally open contact, allowing current to flow through the connected circuit. When coil power is removed, the contact returns to its open position.
Its silver tin oxide contact material is particularly useful in applications involving suitable loads with elevated inrush currents. The Finder Series 40 specification identifies a short-duration peak current capability of up to 120 A for 5 ms for the normally open AgSnO2 contact arrangement. This is a transient rating and must not be confused with the relay's 16 A continuous rated contact current.
The sensitive DC coil provides efficient control with a nominal consumption of 0.5 W. This makes the relay suitable for compatible electronic controllers, interface circuits and industrial equipment where control power consumption is an important design consideration.
The RT III wash-tight construction provides a higher degree of environmental sealing than the standard RT II flux-proof relay construction. It is intended to support appropriate manufacturing and assembly processes, although the relay must still be used within its specified environmental and electrical operating conditions.
With a compact housing and 5 mm contact pin pitch, the Finder 40.61.7.009.4301 can be integrated into compatible electronic switching assemblies. Its plug-in configuration also supports installation using a suitable Finder Series 95 socket, allowing practical relay replacement and servicing where required.
Typical Applications
- Industrial automation and machinery control.
- Electronic control and monitoring equipment.
- Power management and electrical switching systems.
- Industrial control panels.
- Compatible lighting control circuits.
- Electrical loads with suitable inrush-current characteristics.
- Building automation and control equipment.
- Electronic switching and interface assemblies.
- Control equipment using 9 V DC supplies.
- Production machinery and process control.
- Relay interface systems using compatible Finder Series 95 sockets.
- Equipment requiring normally open power switching.
- Electronic assemblies requiring wash-tight relay construction.
