Finder 55.33.8.400.2000 – 55 Series Industrial relays

Why Choose the Finder 55.33.8.400.2000 General Purpose Relay?

The Finder 55.33.8.400.2000 is a professional three-pole electromagnetic relay from the Finder Series 55 general purpose relay range. Designed for industrial automation, electrical control panels and machinery control applications, this relay combines a 400 V AC operating coil, three changeover contacts (3PDT / 3 CO) and a 10 A rated contact current in a compact plug-in construction.

Its three independent changeover contacts allow several electrical circuits to be controlled simultaneously using a single AC control signal. This makes the Finder 55.33.8.400.2000 suitable for auxiliary switching, electrical interlocking, signalling and industrial control applications where multiple switching functions must operate together.

Designed for installation in a compatible Finder Series 94 relay socket, the 55.33.8.400.2000 provides a convenient plug-in arrangement for electrical equipment maintenance and relay replacement. Its compact housing measures approximately 27.7 mm × 20.7 mm × 37.2 mm, making it suitable for control systems where installation space is limited.

Key Advantages

• 400 V AC nominal coil for compatible industrial AC control circuits.
• Three changeover contacts enable multiple circuits to be switched simultaneously.
• 10 A rated contact current for suitable electrical switching applications.
• 250 V AC rated contact voltage supports industrial control and auxiliary switching.
• 3PDT / 3 CO contact configuration provides normally open and normally closed switching options.
• Plug-in relay construction supports convenient installation, inspection and replacement.
• Compact housing helps conserve space in electrical control assemblies.
• Electromechanical operation provides electrical separation between the coil and contact circuits.
• Three-pole switching can reduce the need for multiple individual relays in suitable applications.
• Part of the established Finder Series 55 general purpose relay family.

Key Features

• Finder Series 55 general purpose electromagnetic relay.
• Manufacturer part number: 55.33.8.400.2000.
• 55.33 three-pole plug-in relay configuration.
• 400 V AC nominal coil voltage.
• 50/60 Hz AC coil operation.
• 3PDT / 3 CO 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 resistive switching load.
• 500 VA rated AC15 load at 230 V AC.
• Monostable electromechanical operating principle.
• Plug-in terminals for compatible Finder relay sockets.
• Suitable for industrial automation, control and signalling applications.

Reliable Three-Pole Switching for Industrial Control Systems

The Finder 55.33.8.400.2000 provides an effective method of operating several electrical circuits from a single 400 V AC control signal. Its three independent changeover contacts enable normally open and normally closed switching functions to be incorporated into industrial control systems, machinery interlocking, electrical signalling and auxiliary control circuits.

With a 10 A rated contact current, a 250 V AC rated contact voltage and a 2,500 VA AC1 resistive switching load, this relay supports a range of industrial electrical switching duties. Its maximum switching voltage is 400 V AC, although the permissible load must always be assessed against the applicable contact ratings and operating conditions.

The plug-in design allows the relay to be installed in a compatible socket, supporting efficient replacement during maintenance. Its compact dimensions make it suitable for electrical control cabinets and industrial equipment where multiple switching contacts and accessible servicing are important.

For inductive loads, motor circuits and equipment with high inrush currents, relay selection must consider the manufacturer's relevant utilisation category, switching frequency and electrical endurance ratings. The 400 V AC coil voltage refers to the control supply and should not be confused with the relay's contact switching ratings.

Typical Applications

• Industrial electrical control panels.
• Automation and machinery control systems.
• Three-pole auxiliary switching circuits.
• Electrical interlocking and control logic.
• Motor control auxiliary circuits.
• Industrial signalling and status indication.
• PLC and industrial control interface applications.
• Building services and electrical equipment control.
• OEM industrial machinery manufacturing.
• Maintenance and replacement of compatible plug-in relays.