55.12.9.024.0001 Finder Miniature PCB relay 2pole 10A DC 24V

55.12.9.024.0001 Finder Miniature PCB relay 2pole 10A DC 24V

Finder 55.12.9.024.0001 is a 10 A miniature general purpose electromechanical relay featuring a 24 V DC coil, two changeover contacts, silver-nickel contact material and RT III wash-tight PCB construction for industrial automation and electronic control applications.

SKU: 55.12.9.024.0001Alt SKU: 551290240001MPN: 55.12.9.024.0001
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List Price £21.13 ex VAT
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Why Choose the Finder 55.12.9.024.0001 Miniature General Purpose Relay?

The Finder 55.12.9.024.0001 is a compact 10 A miniature general purpose electromechanical relay designed for reliable electrical switching in industrial automation, electronic control equipment and machinery applications. Part of the Finder 55 Series, this relay features a 24 V DC coil, two changeover contacts and silver-nickel (AgNi) contact material for dependable switching of appropriately rated electrical loads.

The double-pole double-throw (DPDT) contact configuration provides two separate changeover circuits operated by a common electromagnetic coil. This enables one control signal to switch two circuits simultaneously, making the Finder 55.12.9.024.0001 suitable for auxiliary control, equipment signalling, electrical interlocking and PCB-based automation systems.

With a 10 A rated contact current, 250 V AC rated contact voltage and 2,500 VA AC1 switching capacity, the relay provides practical switching performance in a compact package. Its RT III wash-tight construction, PCB through-hole terminals and −40 to +85 °C operating temperature range make it particularly suitable for equipment manufacturers and electronic control system designers requiring a durable relay for printed circuit board integration.

Key Advantages

  • 10 A rated contact current for switching appropriately specified electrical loads.
  • 24 V DC nominal coil for compatible industrial control and electronic circuits.
  • Two changeover contacts (2 CO / DPDT) allow independent switching of two circuits.
  • Silver-nickel (AgNi) contacts provide dependable general purpose switching performance.
  • RT III wash-tight protection offers enhanced resistance to ingress during suitable PCB processing.
  • 250 V AC rated contact voltage for compatible electrical equipment.
  • 2,500 VA AC1 switching capacity for resistive AC loads.
  • 600 Ω nominal coil resistance with approximately 1 W coil consumption.
  • PCB through-hole mounting supports direct integration into electronic control assemblies.
  • −40 to +85 °C operating temperature range supports demanding equipment environments.
  • Compact housing helps conserve space within industrial control equipment.
  • Non-latching operation provides straightforward electromagnetic switching.

Key Features

  • Finder 55 Series miniature general purpose relay.
  • 55.12 relay type with two changeover contacts.
  • 2 CO / DPDT contact configuration.
  • 24 V DC nominal coil voltage.
  • 19.2–26.4 V DC coil operating voltage range.
  • 600 Ω nominal coil resistance.
  • 40 mA nominal coil current.
  • Approximately 1 W nominal coil consumption.
  • 10 A rated contact current.
  • 250 V AC rated contact voltage.
  • 2,500 VA rated AC1 switching capacity.
  • Silver-nickel (AgNi) contact material.
  • RT III wash-tight relay enclosure.
  • PCB through-hole solder terminals.
  • Non-latching, monostable relay operation.
  • −40 to +85 °C operating temperature range.
  • 27.7 × 20.7 × 35.8 mm nominal body dimensions.
  • Cadmium-free contact construction.

Reliable Electrical Switching for Industrial Automation

The Finder 55.12.9.024.0001 provides reliable electromechanical switching for industrial control circuits and electronic equipment. When the 24 V DC coil is energised, both changeover contacts transfer from their normally closed positions to their normally open positions. This enables a single control signal to operate two electrically separate switching circuits, supporting auxiliary control functions, equipment signalling and electrical interlocking.

The Finder 55 Series is particularly suitable for automation engineers and OEM equipment manufacturers requiring compact, PCB-mounted relay solutions. The RT III wash-tight construction provides enhanced protection during appropriate PCB assembly and cleaning processes, while the AgNi contacts support general purpose electrical switching. For motors, inductive loads and circuits with high inrush currents, the applicable load-specific switching ratings must be checked rather than relying solely on the AC1 resistive-load rating.

Typical Applications

  • Industrial automation and electronic control assemblies.
  • PCB-mounted auxiliary switching circuits.
  • Industrial machinery control equipment.
  • Electrical interlocking and control logic applications.
  • Building automation and equipment control systems.
  • Heating, ventilation and air conditioning controllers.
  • Equipment monitoring and status indication circuits.
  • Automated production and process control equipment.
  • OEM electronic control boards and industrial machinery.
  • Electrical distribution and auxiliary control equipment.
  • Control systems requiring wash-tight PCB relay construction.

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
Series 55 Series General Purpose Relays
Model 55.12.9.024.0001
Product type Miniature general purpose electromechanical relay
Relay configuration 55.12
Contact arrangement 2 CO / DPDT
Number of poles 2
Nominal coil voltage 24 V DC
Coil supply type DC
Coil operating voltage range 19.2–26.4 V DC
Nominal coil resistance 600 Ω
Nominal coil current 40 mA
Nominal coil consumption Approximately 1 W
Rated contact current 10 A
Rated contact voltage 250 V AC
Rated switching capacity (AC1) 2,500 VA
Contact material Silver-nickel (AgNi)
Contact operation Two changeover contacts
Coil-to-contact impulse withstand voltage 4 kV
Operating ambient temperature −40 to +85 °C
Relay protection category RT III (wash-tight)
Mounting type PCB through-hole mounting
Terminal type PCB solder terminals
Body dimensions (L × W × H) 27.7 × 20.7 × 35.8 mm
Relay operation Non-latching / monostable
Contact construction Cadmium-free

Frequently Asked Questions

What is the Finder 55.12.9.024.0001 used for?

The Finder 55.12.9.024.0001 is a miniature general purpose relay designed for switching electrical circuits in industrial automation, electronic control boards, machinery interfaces and auxiliary control applications.

What coil voltage does the Finder 55.12.9.024.0001 require?

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

What is the contact rating of the Finder 55.12.9.024.0001?

The relay has two changeover contacts rated at 10 A, with a 250 V AC rated contact voltage and a 2,500 VA AC1 switching capacity. The permitted switching load depends on the electrical load characteristics and applicable utilisation category.

What does RT III wash-tight protection mean?

RT III wash-tight construction indicates a relay enclosure designed to resist the ingress of cleaning liquids during suitable PCB manufacturing processes. It does not mean the relay is intended for unrestricted outdoor exposure or immersion in water.

How is the Finder 55.12.9.024.0001 installed?

The relay is designed for PCB through-hole mounting using solder terminals. Its nominal body dimensions are 27.7 × 20.7 × 35.8 mm, allowing integration into electronic control boards and industrial equipment assemblies.

Trusted by Automation Engineers and Equipment Manufacturers Worldwide

Finder 55 Series miniature general purpose relays provide dependable electrical switching for industrial automation, electronic control equipment and machinery applications. The Finder 55.12.9.024.0001 combines a 24 V DC coil, two 10 A changeover contacts, silver-nickel contact material and RT III wash-tight PCB construction to support reliable operation in professionally designed electrical control systems.

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