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55.33.9.012.2010 Finder Miniature plugin relay 3 pole 10A DC 12V
55.33.9.012.2010 Finder Miniature plugin relay 3 pole 10A DC 12V.
This product has been discontinued
A direct replacement is available below.
Replacement product
55.33.9.012.0010 Finder Miniature plugin relay 3 pole 10A DC 12V
SKU: 55.33.9.012.0010
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Why Choose the Finder 55.33.9.012.2010 Industrial Relay?
The Finder 55.33.9.012.2010 is a versatile 10 A plug-in electromechanical relay designed for industrial automation, electrical control panels and general-purpose switching applications. Part of the Finder Series 55 miniature industrial relay range, it combines three independent changeover contacts with a compact, socket-mounted construction for dependable electrical control.
Featuring a three-pole double-throw (3PDT, 3 CO) contact arrangement, the relay enables three separate circuits to be switched simultaneously using a single electromagnetic coil. Its 12 V DC coil is suitable for compatible low-voltage control systems, while the 10 A rated contacts support a broad range of industrial switching applications.
The Finder 55.33.9.012.2010 features silver cadmium oxide (AgCdO) contact material and a plug-in design intended for compatible Finder Series 94 relay sockets. This arrangement supports convenient installation, inspection and replacement, making the relay suitable for industrial machinery, control equipment and maintenance-friendly electrical assemblies.
Key Advantages
- Three changeover contacts (3PDT, 3 CO) provide flexible switching of three independent circuits.
- 12 V DC nominal coil voltage supports integration with compatible low-voltage control systems.
- 10 A rated contact current for industrial and general-purpose electrical switching.
- Silver cadmium oxide (AgCdO) contacts provide a robust contact system for electrical load switching.
- Plug-in mounting allows straightforward relay replacement without disturbing fixed socket wiring.
- Compatible with suitable Finder Series 94 sockets for electrical control panel installation.
- Monostable operation returns the contacts to their normal positions when coil power is removed.
- Compact construction helps conserve space in industrial electrical equipment.
- Suitable for PLC interfaces, automation systems, machinery control and auxiliary switching.
Key Features
- Finder Series 55 miniature general-purpose industrial relay.
- Type 55.33 with three changeover contacts.
- 12 V DC nominal coil voltage.
- 3PDT (3 CO, 3 Form C) contact configuration.
- 10 A rated contact current.
- 250 V AC rated contact voltage.
- 400 V AC maximum switching voltage.
- 2,500 VA rated AC1 switching load.
- 140 Ω nominal coil resistance.
- 86 mA nominal coil current.
- Approximately 1 W nominal DC coil consumption.
- Silver cadmium oxide (AgCdO) contact material.
- Non-latching electromechanical switching mechanism.
- Plug-in terminals for compatible relay sockets.
- Compact body dimensions of approximately 20.7 × 27.7 × 37.2 mm.
Flexible Three-Pole Switching for Industrial Control Systems
Electromechanical relays such as the Finder Series 55 use an electromagnetic coil to operate mechanically linked electrical contacts. When the coil is energised, all three changeover contacts transfer from their normally closed positions to their normally open positions. When the coil supply is removed, the contacts return to their normal states. This allows a single control signal to operate three separate circuits while maintaining galvanic isolation between the coil and contact systems.
The Finder 55.33.9.012.2010 is particularly useful in control systems requiring multiple switching functions from one relay. Its 3PDT configuration can be used for auxiliary control, signalling and electrical interlocking, while the 12 V DC coil supports operation from an appropriately rated DC control supply.
The plug-in design enables the relay to be installed into a compatible socket, allowing convenient servicing and replacement. When designing an installation, engineers should consider the electrical characteristics of the connected loads, coil suppression requirements, switching frequency and socket compatibility. Inductive and high-inrush loads may require additional contact protection or derating.
Typical Applications
- Industrial automation and process control systems.
- Electrical control panels and relay interface assemblies.
- PLC-controlled auxiliary switching circuits.
- Industrial machinery and OEM equipment.
- Building automation and building management systems.
- Electrical interlocking and multi-circuit control.
- Control circuit switching and status signalling.
- Maintenance-friendly plug-in relay installations.
Technical Specifications
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| Device Type | Plug-in Relay | |
|---|---|---|
| Terminal Type | PCB / pins | |
| Load Voltage | 400 V AC | |
| Mounting Type | Plug-in socket | |
| Switching Current (A) | 10 A | |
| Manufacturer | Finder | |
| Series | Series 55 General-Purpose Relays | |
| Type | 55.33 | |
| Model | 55.33.9.012.2010 | |
| Product type | Electromechanical plug-in industrial relay | |
| Contact configuration | 3 CO (3PDT, 3 Form C) | |
| Number of poles | 3 | |
| Rated contact current | 10 A | |
| Maximum peak contact current | 20 A | |
| Rated contact voltage | 250 V AC | |
| Maximum switching voltage | 400 V AC | |
| Rated AC1 switching load | 2,500 VA | |
| Rated AC15 switching load at 230 V AC | 500 VA | |
| Rated coil voltage | 12 V DC | |
| Coil supply type | DC | |
| Coil operating voltage range | 9.6–13.2 V DC | |
| Nominal coil resistance | 140 Ω | |
| Nominal coil current | 86 mA | |
| Nominal DC coil consumption | 1 W | |
| Contact material | Silver cadmium oxide (AgCdO) | |
| Relay operation | Monostable, non-latching | |
| Mechanical life | Up to 50 million cycles for DC coil versions | |
| Electrical life at rated AC1 load | Approximately 200,000 cycles | |
| Operate time | Approximately 9 ms | |
| Release time | Approximately 5 ms | |
| Operating temperature | −40 to +85 °C | |
| Mounting type | Plug-in socket mounting | |
| Terminal type | Plug-in pins | |
| Compatible socket family | Finder Series 94, suitable 3-pole versions | |
| Dimensions (W × D × H) | Approximately 20.7 × 27.7 × 37.2 mm | |
| Application | Industrial automation, control panels and electrical switching |
Frequently Asked Questions
What is the Finder 55.33.9.012.2010 used for?
The Finder 55.33.9.012.2010 is a plug-in industrial relay used for switching electrical circuits in automation equipment, industrial machinery and control panels. Its three changeover contacts allow three independent circuits to be controlled using one relay coil.
What coil voltage does the Finder 55.33.9.012.2010 require?
The relay operates from a nominal 12 V DC supply. It has a nominal coil resistance of 140 Ω, a nominal coil current of approximately 86 mA and a specified operating voltage range of 9.6–13.2 V DC.
What is the switching capacity of the Finder 55.33.9.012.2010?
The relay has a 10 A rated contact current at 250 V AC, a maximum switching voltage of 400 V AC and a rated resistive AC1 switching load of 2,500 VA. The permissible switching load depends on the application and electrical characteristics of the connected circuit.
What does the 3PDT contact configuration mean?
3PDT means three-pole double-throw, also described as 3 CO or three changeover contacts. Each pole provides a common, normally open and normally closed connection, enabling three circuits to change state together when the relay coil is energised.
How is the Finder 55.33.9.012.2010 installed?
The relay uses plug-in socket mounting and is designed for compatible Finder Series 94 three-pole relay sockets. Suitable sockets allow installation in electrical control panels, including DIN rail-mounted assemblies. The socket is normally selected separately to suit the installation.
Trusted Finder Relay Technology for Industrial Automation
Finder Series 55 industrial relays provide dependable electrical switching for automation engineers, electrical panel builders and OEM equipment manufacturers. With a 12 V DC coil, three 10 A changeover contacts and convenient plug-in socket mounting, the Finder 55.33.9.012.2010 offers a flexible solution for industrial control, multi-circuit switching and maintenance-friendly electrical installations.
