40.61.7.048.1001 Finder Miniature PCB relay 1pole 16A DC 48V

Why Choose the Finder 40.61.7.048.1001 Miniature Power Relay?

The Finder 40.61.7.048.1001 is a compact 16 A miniature electromechanical power relay designed for industrial automation, electrical load switching and electronic control applications. Part of the Finder Series 40, this relay combines a sensitive DC coil with a single changeover contact, making it suitable for equipment operating with a 48 V DC control supply.

Featuring a 48 V DC sensitive coil, one changeover contact (SPDT / 1 CO) and a 16 A rated contact current, the Finder 40.61.7.048.1001 enables low-power control circuits to switch compatible electrical loads. Its silver cadmium oxide (AgCdO) contact material provides robust electromechanical switching characteristics for suitable industrial applications.

A distinguishing feature of this variant is its RT III wash-tight construction, which provides enhanced protection against ingress during suitable PCB washing processes. Combined with its compact 12.4 × 29 × 25 mm housing and 5 mm contact pin pitch, the relay offers a practical solution for electronic assemblies, machine control equipment and industrial control systems.

Key Advantages

• 16 A rated contact current for switching compatible electrical loads.
• 48 V DC sensitive coil for industrial control circuits.
• Single changeover contact (SPDT / 1 CO) provides normally open and normally closed switching options.
• 0.5 W nominal coil power helps minimise control circuit power consumption.
• RT III wash-tight construction supports suitable PCB cleaning and assembly processes.
• Silver cadmium oxide (AgCdO) contacts offer robust switching characteristics.
• 250 V AC rated contact voltage for compatible electrical loads.
• 4000 VA AC1 switching capacity for suitable resistive loads.
• Compact miniature housing supports space-efficient equipment design.
• PCB and compatible socket mounting provide installation flexibility.
• Monostable operation returns the contacts to their normal position when coil power is removed.
• Part of the established Finder Series 40 miniature power relay range.

Key Features

• Finder Series 40 miniature power relay.
• Type 40.61 single-pole changeover design.
• 48 V DC nominal coil voltage.
• Sensitive DC coil for low-power control circuits.
• 0.5 W nominal coil consumption.
• Approximately 4800 Ω nominal coil resistance.
• Approximately 10 mA nominal coil current.
• 16 A rated contact current.
• 250 V AC rated contact voltage.
• 400 V AC maximum switching voltage.
• 4000 VA rated AC1 switching capacity.
• 30 A maximum peak contact current under the standard contact specification.
• SPDT / 1 Form C / 1 CO contact configuration.
• Silver cadmium oxide (AgCdO) contact material.
• Monostable, non-latching operation.
• 5 mm contact pin pitch.
• RT III wash-tight environmental protection.
• PCB mounting or installation in a compatible relay socket.
• 12.4 × 29 × 25 mm nominal housing dimensions.
• Suitable for industrial automation and electronic control equipment.

Reliable 48 V DC Switching with RT III Wash-Tight Protection

The Finder 40.61.7.048.1001 uses an electromagnetic coil to operate a single changeover contact. When the appropriate 48 V DC control voltage is applied, the relay energises and transfers its common contact from the normally closed terminal to the normally open terminal. When coil power is removed, the contact returns to its original position.

Its sensitive DC coil has a nominal consumption of 0.5 W, drawing approximately 10 mA at the rated voltage. This makes the relay useful in compatible industrial controllers and electronic switching circuits where low coil power demand is desirable. The 16 A changeover contact provides a separate switching path for electrical loads, subject to the relevant contact ratings and operating conditions.

The RT III wash-tight construction is particularly useful in PCB manufacturing environments where compatible washing processes are used after soldering. It offers enhanced protection against ingress during suitable assembly procedures compared with standard RT II flux-proof construction. However, RT III protection does not mean that the relay is intended for continuous immersion, exposed outdoor use or unrestricted contact with liquids.

The AgCdO contact material is another important consideration when specifying this variant. Because silver cadmium oxide contains cadmium, engineers should verify the product's suitability under applicable environmental legislation, including relevant RoHS restrictions and exemptions. When switching motors, transformers, LED drivers or other loads with significant inrush current, the electrical characteristics of the load must also be checked against the relay's permitted switching ratings.

Typical Applications

• Industrial automation and machinery control.
• 48 V DC industrial control circuits.
• PLC output interfacing with compatible coil drive circuits.
• Electrical control panels and switching assemblies.
• PCB-based electronic control equipment.
• Electronic assemblies using suitable PCB washing processes.
• Industrial signalling and indication circuits.
• Building automation and electrical control systems.
• Auxiliary motor control and interlocking circuits.
• Packaging and production machinery.
• OEM electrical and electronic assemblies.
• Maintenance and replacement of compatible Series 40.61 relay variants.