40.52.7.021.0300 Finder Miniature PCB relay 2pole 8A DC 21V

40.52.7.021.0300 Finder Miniature PCB relay 2pole 8A DC 21V

Finder 40.52.7.021.0300 miniature PCB relay with two changeover contacts, 8 A switching capacity and a 21 V DC coil for industrial control applications.

SKU: 40.52.7.021.0300Alt SKU: 405270210300MPN: 40.52.7.021.0300
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Why Choose the Finder 40.52.7.021.0300 Miniature PCB Relay?

The Finder 40.52.7.021.0300 is a compact and reliable miniature electromechanical PCB relay designed for switching and control applications in industrial automation, electrical equipment and OEM systems. As part of the Finder 40 Series miniature relays, it provides dependable switching performance in a space-saving package.

This relay features two changeover contacts and a 21 V DC coil, making it suitable for interface, control and switching applications where reliable electrical isolation and compact installation are required. Its PCB mounting design allows straightforward integration into electronic control assemblies.

With an 8 A contact rating and a 21 V DC coil supply, the Finder 40.52.7.021.0300 is suitable for industrial control panels, automation equipment and electronic circuits requiring a dependable miniature relay solution.

Key Advantages

  • Compact miniature PCB relay designed for industrial switching applications.
  • Two changeover contacts provide flexible circuit switching capability.
  • 8 A contact rating suitable for a wide range of control applications.
  • 21 V DC coil voltage for reliable relay operation.
  • Space-saving design for PCB mounting installations.
  • Reliable switching performance for automation and OEM equipment.

Key Features

  • Finder 40 Series miniature PCB relay.
  • 2 changeover contacts (2 CO).
  • 8 A contact current rating.
  • 21 V DC coil.
  • Gold-plated contacts for enhanced switching reliability.
  • PCB mounting format.
  • Compact miniature relay construction.

Reliable Switching for Industrial Control Systems

Miniature relays such as the Finder 40.52.7.021.0300 provide electrical isolation and reliable switching between control circuits and connected loads. Their compact design makes them suitable for integration into automation equipment, electronic control systems and industrial machinery.

The Finder 40 Series combines robust switching technology with flexible installation options, allowing engineers and machine builders to create dependable control solutions in space-limited applications.

Typical Applications

  • Industrial automation control systems.
  • PCB-mounted switching circuits.
  • Electrical control panels and equipment.
  • OEM machinery and electronic assemblies.
  • Interface and signal switching applications.
  • Industrial monitoring and control systems.

Technical Specifications

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Device Type Plug-in Relay
Switching Current (A) 8 A
Mounting Type PCB
Coil / Supply Voltage 21 V DC
Contacts 2 C/O
Manufacturer Finder
Series 40 Series
Model 40.52.7.021.0300
Product type Miniature electromechanical PCB relay
Contact configuration 2 changeover contacts
Rated contact current 8 A
Coil voltage 21 V DC
Mounting type PCB mounting
Contact material AgNi + Au

Frequently Asked Questions

What is the Finder 40.52.7.021.0300 used for?

This miniature relay is used for switching and isolation in industrial automation, control panels and electronic equipment applications.

What coil voltage does this relay require?

The Finder 40.52.7.021.0300 uses a 21 V DC coil.

How many contacts does this relay have?

The relay features two changeover contacts (2 CO) for flexible switching applications.

What is the maximum contact rating?

The relay has a rated contact current of 8 A.

How is this relay mounted?

The relay is designed for PCB mounting in electronic and industrial control assemblies.

Trusted by Industrial Automation Professionals

Finder miniature relays are widely used in industrial automation, electrical control and OEM applications where reliable switching performance and compact design are essential.