55.34.9.012.2000 Finder Miniature plugin relay 4 pole 7A DC 12V

Why Choose the Finder 55.34.9.012.2000 General Purpose Relay?

The Finder 55.34.9.012.2000 is a compact 12 V DC industrial electromechanical relay from the Finder 55 Series. Featuring four changeover contacts (4 CO / 4PDT) and a 7 A rated contact current, this relay provides versatile switching for industrial automation, electrical control panels, machinery and auxiliary control circuits.

Its 12 V DC operating coil allows a compatible low-voltage control signal to operate four changeover contact sets simultaneously. Each contact set provides a common, normally open and normally closed connection, making the relay suitable for applications involving multiple switching functions, status indication, control logic and electrical interlocking.

The Finder 55.34.9.012.2000 features a plug-in design for installation in a compatible relay socket, together with silver cadmium oxide (AgCdO) contacts. Its compact dimensions of approximately 20.7 mm × 37.2 mm × 27.7 mm make it a practical choice for control equipment where multiple contact functions and serviceable relay installation are required.

Key Advantages

• 12 V DC nominal coil voltage for compatible DC control systems.
• Four changeover contacts (4 CO / 4PDT) for flexible multi-circuit switching.
• 7 A rated contact current for appropriately specified electrical loads.
• 250 V AC rated contact voltage for suitable AC switching applications.
• Plug-in relay construction supports convenient installation and replacement.
• AgCdO contact material for the specified ordering variant.
• Four separate changeover contact sets operate from one relay coil.
• Compact design for industrial control cabinets and electrical equipment.
• Monostable operation provides a defined de-energised contact state.
• Compatible with appropriately selected Finder 94 Series relay sockets.
• Suitable for control logic, auxiliary switching and electrical interlocking.
• Useful for machinery control, automation equipment and OEM assemblies.
• Part of Finder's established 55 Series industrial relay range.

Key Features

• Finder 55.34 general purpose electromechanical relay.
• Manufacturer part number: 55.34.9.012.2000.
• Nominal coil voltage: 12 V DC.
• Contact configuration: 4 CO / 4PDT.
• Number of changeover contacts: Four.
• Rated contact current: 7 A.
• Rated contact voltage: 250 V AC.
• Contact material: Silver cadmium oxide (AgCdO).
• Coil resistance: Approximately 140 Ω.
• Coil power: Approximately 1 W.
• Mounting method: Plug-in relay socket.
• Operating principle: Monostable.
• Compact housing dimensions: Approximately 20.7 mm × 37.2 mm × 27.7 mm.
• Socket compatibility: Suitable Finder 94 Series socket options.
• Designed for industrial switching and automation applications.

Four-Pole Changeover Switching for 12 V DC Control Systems

The Finder 55.34.9.012.2000 is particularly useful in control systems where four switching functions must be operated from a single 12 V DC control signal. Its 4PDT contact arrangement allows each changeover contact set to be connected to a separate circuit, subject to the relay's electrical ratings and insulation requirements.

Each contact set includes a common terminal, a normally open contact and a normally closed contact. When the coil is energised, all four contact sets change state together. When the control supply is removed, the relay returns to its normal contact positions. This makes the relay suitable for conventional control logic, auxiliary switching and electrical interlocking functions.

The 7 A rated contact current provides useful switching capability for appropriately specified loads. However, actual permissible current depends on the electrical characteristics of the connected equipment. Resistive loads, inductive loads, motors and devices with high inrush currents may require different switching ratings. Engineers should consult the applicable Finder technical data before selecting the relay for a particular load.

The 12 V DC coil has a nominal resistance of approximately 140 Ω, corresponding to a nominal current of approximately 86 mA. Control outputs, power supplies and any coil suppression arrangements must be selected to suit the relay's electrical requirements. Where the relay is driven by a PLC or electronic controller, the output current capability should be checked carefully.

Designed for plug-in installation, the Finder 55.34.9.012.2000 can be fitted to a compatible relay socket. Finder 94 Series socket options provide different installation arrangements, including suitable panel and DIN rail configurations. The socket must be selected separately and should not be assumed to be supplied with the relay.

The specified silver cadmium oxide (AgCdO) contacts distinguish this ordering variant from other Finder 55.34 relays that use different contact materials. Because AgCdO contains cadmium, applicable environmental and product compliance requirements should be reviewed when selecting the relay or considering alternatives.

For maintenance and replacement, the complete 55.34.9.012.2000 manufacturer reference should be matched. Other Finder 55.34 relays may share the same coil voltage and contact arrangement but differ in contact material, test-button features, indication options or other construction details.

Typical Applications

• Industrial electrical control panels.
• 12 V DC automation and control circuits.
• Machinery control and OEM equipment.
• Four-pole changeover switching applications.
• Electrical control logic and interlocking.
• Equipment status and alarm signalling.
• Industrial process control equipment.
• Building automation and electrical services.
• Socket-mounted industrial relay assemblies.
• Maintenance and replacement of compatible Finder 55.34 relays.