55.33.9.012.5010 Finder Miniature plugin relay 3 pole 10A DC 12V

Why Choose the Finder 55.33.9.012.5010 Industrial Relay?

The Finder 55.33.9.012.5010 is a compact 10 A industrial electromechanical relay featuring a 12 V DC coil, three changeover contacts and gold-plated silver-nickel contact material. Part of the Finder 55 Series, this plug-in relay is designed for industrial automation, electrical control panels, machinery and general-purpose switching applications.

Its 3 CO / 3PDT contact configuration allows three independent changeover circuits to be operated simultaneously by a single electromagnetic coil. The AgNi + Au contacts with 5 µm gold plating make this variant particularly relevant to applications requiring dependable contact performance, including suitably rated low-level switching and industrial control signals.

The Finder 55.33.9.012.5010 combines a 10 A rated contact current, 250 V AC rated contact voltage and 1 W DC coil consumption with a convenient socket-mounted design. Its lockable test button provides additional functionality for commissioning and maintenance, while compatibility with selected Finder 94 Series sockets supports straightforward integration into industrial electrical assemblies.

Key Advantages

• 12 V DC operating coil for compatible industrial control circuits.
• Three changeover contacts (3 CO / 3PDT) for flexible multi-circuit switching.
• 10 A rated contact current for appropriately rated electrical loads.
• 20 A maximum peak contact current under specified conditions.
• 5 µm gold-plated silver-nickel contacts provide enhanced contact surface characteristics.
• 2,500 VA AC1 switching capacity for suitable resistive loads.
• Lockable test button assists with commissioning and functional checks.
• Plug-in relay construction enables convenient replacement and servicing.
• Compatible Finder 94 Series sockets support PCB and control panel installation options.
• 1 W nominal coil power for efficient DC operation.
• 50 million mechanical operations under the specified DC coil test conditions.
• −40 to +85 °C operating temperature range supports demanding industrial environments.

Key Features

• Finder 55 Series miniature general-purpose relay.
• 55.33 three-pole plug-in relay design.
• 12 V DC nominal coil voltage.
• 140 Ω nominal coil resistance.
• 86 mA nominal coil current.
• 1 W nominal coil power consumption.
• 9.6–13.2 V DC coil operating range.
• Three changeover contacts (3 CO).
• Triple-pole double-throw (3PDT) contact arrangement.
• 10 A rated contact current.
• 20 A maximum peak contact current.
• 250 V AC rated contact voltage.
• 400 V AC maximum switching voltage.
• 2,500 VA rated AC1 switching capacity.
• Silver-nickel contacts with 5 µm gold plating.
• Lockable test button.
• 11-pin plug-in connection.
• Socket mounting using compatible Finder 94 Series accessories.
• Compact industrial relay housing.

Gold-Plated Contacts for Reliable Industrial Switching

The Finder 55.33.9.012.5010 features silver-nickel contacts with 5 µm gold plating. Gold-plated contacts are particularly useful where contact surface stability matters, as gold resists oxidation and can help maintain dependable electrical connections at low switching levels.

The relay's three changeover contacts provide a versatile arrangement for switching multiple circuits. Each pole has a common terminal, a normally closed terminal and a normally open terminal. When the 12 V DC coil is energised, all three contact sets change state together. When the coil is de-energised, the contacts return to their normal positions.

Although the relay belongs to a 10 A rated contact family, switching high-current loads can affect the gold-plated contact surfaces. Where the relay will subsequently switch low-level signals, the intended load profile and contact suitability should be checked against Finder's technical guidance.

Convenient Plug-In Mounting and Lockable Test Button

The Finder 55.33.9.012.5010 uses an 11-pin plug-in configuration for installation into compatible Finder 94 Series relay sockets. This arrangement allows maintenance personnel to replace the relay without disconnecting the socket wiring, reducing service time in industrial electrical installations.

The integrated lockable test button enables controlled manual actuation during commissioning and maintenance. This can help technicians verify contact operation and troubleshoot connected circuits. The test button should only be used in accordance with the manufacturer's instructions and the installation's electrical safety procedures.

With a compact housing and an operating temperature range of −40 to +85 °C, this Finder relay is suitable for a broad range of industrial control environments, provided its contact ratings, coil voltage and socket compatibility are respected.

Typical Applications

• Industrial automation and control panels.
• Machinery control and auxiliary switching circuits.
• PLC output and control interfaces.
• Industrial signalling and status indication.
• Building automation and electrical control systems.
• Heating, ventilation and air conditioning control circuits.
• Industrial process control equipment.
• Alarm and monitoring systems.
• Electrical interlocking and sequential control.
• OEM electrical and electronic equipment.
• Multi-circuit switching using a single 12 V DC control signal.
• Applications requiring a plug-in 3PDT relay with gold-plated contacts.