55.12.9.024.2000 Finder Miniature PCB relay 2pole 10A DC 24V

55.12.9.024.2000 Finder Miniature PCB relay 2pole 10A DC 24V

55.12.9.024.2000 Finder Miniature PCB relay 2pole 10A DC 24V.

SKU: 55.12.9.024.2000Alt SKU: 551290242000MPN: 55.12.9.024.2000

Why Choose the Finder 55.12.9.024.2000 Industrial PCB Relay?

The Finder 55.12.9.024.2000 is a robust 24 V DC industrial electromagnetic relay designed for dependable electrical switching in automation systems, control equipment and printed circuit board assemblies. Part of the established Finder Series 55 range, this general-purpose relay combines a durable construction with two independent changeover contacts, making it suitable for industrial applications requiring flexible control of electrical circuits.

Featuring a double-pole double-throw (DPDT / 2 CO) contact configuration, the Finder 55.12.9.024.2000 provides two separate changeover contact sets operated by a common electromagnetic coil. Each contact set is rated at 10 A at 250 V AC for resistive loads, allowing the relay to switch two appropriately rated circuits or provide combined switching and signalling functions.

Designed for PCB through-hole mounting, the relay features a 24 V DC coil, silver cadmium oxide (AgCdO) contacts and a compact industrial housing. Its monostable operation, straightforward solder-terminal installation and versatile contact arrangement make it a practical solution for OEM machinery, electrical control boards and industrial automation equipment.

Key Advantages

  • 24 V DC electromagnetic coil for industrial control applications.
  • DPDT / 2 CO contact arrangement provides two independent changeover switching circuits.
  • 10 A contact rating at 250 V AC for appropriately rated resistive loads.
  • Silver cadmium oxide (AgCdO) contacts for industrial electrical switching.
  • PCB through-hole mounting allows direct integration into electronic control assemblies.
  • 600 Ω nominal coil resistance supports predictable control circuit design.
  • Approximately 1 W coil consumption for conventional industrial relay operation.
  • Monostable, non-latching operation provides automatic return when the coil is de-energised.
  • Non-polarised DC coil simplifies electrical connection.
  • Compact industrial construction for space-conscious electronic equipment.
  • Suitable for machinery controls, automation equipment and electrical switching applications.
  • Allows switching and auxiliary signalling functions within a single relay.

Key Features

  • Finder Series 55.12 general-purpose industrial relay.
  • 24 V DC nominal coil voltage.
  • Two changeover contacts (DPDT / 2 Form C).
  • 10 A rated current per contact set.
  • 250 V AC rated contact voltage.
  • 600 Ω nominal coil resistance.
  • 40 mA nominal coil current.
  • Approximately 0.96 W nominal coil power.
  • Silver cadmium oxide contact material.
  • PCB through-hole solder terminals.
  • Non-polarised coil connection.
  • Monostable electromagnetic operation.
  • RT I dust-protected construction.
  • Compact housing measuring approximately 27.7 × 20.7 × 35.8 mm.

Dependable Dual-Contact Switching for Industrial Control Systems

The Finder 55.12.9.024.2000 uses an electromagnetic coil to operate two separate changeover contact sets. When the specified 24 V DC is applied to the coil, both contact sets transfer from their normally closed positions to their normally open positions. When the coil is de-energised, the contacts return to their normal states, providing predictable control of connected electrical circuits.

The DPDT contact configuration allows engineers to switch two independent circuits using one control signal. This is particularly useful for applications requiring simultaneous control of separate loads, combined equipment switching and status signalling, or auxiliary control functions. Each contact set has a 10 A resistive AC rating, although inductive, capacitive and high-inrush loads must be assessed against the manufacturer's applicable switching limits.

The relay's through-hole PCB terminals enable direct integration into electronic control assemblies, while its AgCdO contact material supports industrial switching applications. With a nominal coil resistance of 600 Ω and non-polarised DC operation, the relay can be incorporated into appropriately designed 24 V DC control circuits. Suitable coil suppression, PCB conductor sizing and contact protection should be considered during equipment design.

Typical Applications

  • Industrial electronic control boards.
  • PLC interface and auxiliary switching circuits.
  • OEM machinery and equipment controls.
  • Industrial automation and process control systems.
  • Electrical control panel PCB assemblies.
  • Building automation and HVAC control equipment.
  • Motor control and auxiliary signalling circuits.
  • Industrial monitoring and instrumentation equipment.
  • Dual-circuit switching and electrical interlocking.
  • Embedded electronic control systems.
  • Industrial power supply and equipment switching circuits.
  • Maintenance and replacement of compatible PCB-mounted relays.

Technical Specifications

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Device Type Plug-in Relay
Terminal Type PCB / pins
Mounting Type PCB
Switching Current (A) 10 A
Manufacturer Finder
Manufacturer part number 55.12.9.024.2000
Series 55
Relay type 55.12
Product type General-purpose electromagnetic PCB relay
Contact configuration DPDT / 2 CO
Number of poles 2
Number of changeover contacts 2
Nominal coil voltage 24 V DC
Coil voltage type DC
Nominal coil resistance 600 Ω
Nominal coil current 40 mA
Nominal coil power 0.96 W
DC coil operating voltage range 19.2–26.4 V DC
Rated contact current 10 A
Rated contact voltage 250 V AC
Rated resistive AC switching power 2,500 VA
Contact material Silver cadmium oxide (AgCdO)
Mounting method PCB through-hole
Terminal type Solder pins
Approximate dimensions 27.7 × 20.7 × 35.8 mm
Coil polarity Non-polarised
Relay operation Monostable, non-latching
Environmental protection category RT I
Integrated LED indicator No
Typical application Industrial control and PCB-based electrical switching

Frequently Asked Questions

What is the Finder 55.12.9.024.2000 used for?

The Finder 55.12.9.024.2000 is a general-purpose industrial electromagnetic relay used for switching electrical circuits from a 24 V DC control supply. Typical applications include industrial automation, machinery controls, PCB assemblies and auxiliary electrical switching.

What coil voltage does the Finder 55.12.9.024.2000 require?

The relay has a 24 V DC nominal coil voltage, a nominal resistance of 600 Ω and a nominal current of 40 mA. Its specified DC coil operating voltage range is 19.2–26.4 V DC.

What is the contact rating of the Finder 55.12.9.024.2000?

The relay features two changeover contact sets rated at 10 A and 250 V AC for resistive loads. The rated resistive AC switching power is 2,500 VA per contact set. Actual suitability depends on the electrical load and switching conditions.

Does the Finder 55.12.9.024.2000 have normally open and normally closed contacts?

Yes. The relay has a DPDT / 2 CO contact configuration, providing two independent changeover contact sets. Each set includes a common terminal, a normally open contact and a normally closed contact.

How is the Finder 55.12.9.024.2000 mounted?

The relay is designed for PCB through-hole mounting using solder terminals. It is intended for direct installation onto a compatible printed circuit board rather than direct DIN rail mounting.

What contact material is used in the Finder 55.12.9.024.2000?

The Finder 55.12.9.024.2000 uses silver cadmium oxide (AgCdO) contact material. This is a specific contact material option within the Finder Series 55 range and should not be confused with the silver nickel (AgNi) contacts used in other variants.

What is the difference between the Finder 55.12.9.024.2000 and 55.12.9.024.0000?

Both relays belong to the Finder Series 55.12 range and feature a 24 V DC coil with two 10 A changeover contacts. The key difference is the contact material: the 55.12.9.024.2000 uses AgCdO contacts, while the 55.12.9.024.0000 uses standard AgNi contacts.

Trusted by Electrical Engineers and Industrial Automation Professionals Worldwide

Finder Series 55 industrial relays provide versatile electromagnetic switching solutions for professional electrical and electronic control systems. With a 24 V DC coil, two 10 A changeover contacts, AgCdO contact material and robust PCB through-hole construction, the Finder 55.12.9.024.2000 offers dependable dual-circuit switching for automation equipment, industrial machinery and OEM electronic assemblies.