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Finder 55.34.8.036.0040 – 55 Series Miniature General Purpose Relays
Finder 55.34.8.036.0040 is a 7 A miniature general purpose plug-in relay featuring a 36 V AC coil, four changeover contacts, silver-nickel contact material, a lockable test button and mechanical indicator for industrial automation and electrical control applications.
£9.37
Why Choose the Finder 55.34.8.036.0040 Miniature General Purpose Relay?
The Finder 55.34.8.036.0040 is a compact 7 A miniature general purpose electromechanical relay designed for reliable electrical switching in industrial automation, machinery control and electrical control panels. Part of the established Finder 55 Series, this plug-in relay features a 36 V AC coil, four changeover contacts and silver-nickel (AgNi) contact material for dependable switching of appropriately rated electrical loads.
The four-pole double-throw (4PDT) contact configuration provides four separate changeover circuits operated by a common electromagnetic coil. This allows a single control signal to switch multiple circuits simultaneously, making the Finder 55.34.8.036.0040 suitable for auxiliary control, electrical interlocking, equipment signalling and industrial automation applications.
This variant includes a lockable test button and mechanical indicator, providing convenient manual testing and visual indication of the relay's operating state. With a 7 A rated contact current, 250 V AC rated contact voltage and 1,750 VA AC1 switching capacity, the relay offers practical switching performance in a compact plug-in package designed for compatible Finder relay sockets.
Key Advantages
- 7 A rated contact current for switching appropriately specified electrical loads.
- 36 V AC nominal coil for compatible industrial AC control circuits.
- Four changeover contacts (4 CO / 4PDT) enable switching of multiple circuits from one control signal.
- Silver-nickel (AgNi) contacts provide dependable general purpose switching performance.
- Lockable test button supports convenient manual relay operation during testing and commissioning.
- Mechanical indicator provides visual confirmation of the relay's operating state.
- 250 V AC rated contact voltage for compatible electrical equipment.
- 1,750 VA AC1 switching capacity for resistive AC loads.
- Plug-in mounting allows convenient installation and replacement using a compatible socket.
- RT I protection category identifies the standard relay enclosure construction.
- Compact housing helps conserve space within industrial control cabinets.
- Non-latching operation provides straightforward electromagnetic switching.
Key Features
- Finder 55 Series miniature general purpose relay.
- 55.34 relay type with four changeover contacts.
- 4 CO / 4PDT contact configuration.
- 36 V AC nominal coil voltage.
- AC coil operation at 50/60 Hz.
- 7 A rated contact current.
- 15 A maximum peak contact current.
- 250 V AC rated contact voltage.
- 1,750 VA rated AC1 switching capacity.
- 350 VA rated AC15 switching capacity at 230 V AC.
- Silver-nickel (AgNi) contact material.
- Lockable test button for manual operation.
- Mechanical operating indicator.
- Plug-in electrical connection for compatible relay sockets.
- RT I relay protection category.
- Non-latching, monostable operation.
- −40 to +85 °C operating temperature range.
- 27.7 × 20.7 × 37.2 mm body dimensions.
Reliable Electrical Switching for Industrial Automation
The Finder 55.34.8.036.0040 provides dependable electromechanical switching for industrial control circuits and electrical equipment. When the 36 V AC coil is energised, the relay's four changeover contacts transfer from their normally closed positions to their normally open positions. This enables a single control signal to operate four separate switching circuits, supporting electrical interlocking, auxiliary control, equipment signalling and industrial automation functions.
The Finder 55 Series is particularly suitable for automation engineers, electrical panel builders and maintenance professionals requiring versatile plug-in relay solutions. The lockable test button and mechanical indicator assist with commissioning, testing and troubleshooting, while the socket-mounted construction allows convenient relay replacement. 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 electrical control panels.
- PLC interface and auxiliary switching circuits.
- Industrial machinery control equipment.
- Electrical interlocking and multi-circuit control logic.
- Building automation and equipment control systems.
- Heating, ventilation and air conditioning control panels.
- Equipment monitoring and status indication circuits.
- Automated production and process control equipment.
- OEM machinery and electrical control cabinets.
- Control circuits requiring four changeover contacts.
- Maintenance and commissioning applications requiring manual relay testing.
Technical Specifications
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| Device Type | Plug-in Relay | |
|---|---|---|
| Mounting Type | Plug-in socket | |
| Switching Current (A) | 7 A | |
| Manufacturer | Finder | |
| Series | 55 Series General Purpose Relays | |
| Model | 55.34.8.036.0040 | |
| Product type | Miniature general purpose electromechanical relay | |
| Relay configuration | 55.34 | |
| Contact arrangement | 4 CO / 4PDT | |
| Number of poles | 4 | |
| Nominal coil voltage | 36 V AC | |
| Coil supply type | AC | |
| Coil frequency | 50/60 Hz | |
| Rated contact current | 7 A | |
| Maximum peak contact current | 15 A | |
| Rated contact voltage | 250 V AC | |
| Rated switching capacity (AC1) | 1,750 VA | |
| Rated switching capacity (AC15 at 230 V AC) | 350 VA | |
| DC1 breaking capacity at 30 V DC | 7 A | |
| DC1 breaking capacity at 110 V DC | 0.25 A | |
| DC1 breaking capacity at 220 V DC | 0.12 A | |
| Rated single-phase motor load at 230 V AC | 0.125 kW | |
| Contact material | Silver-nickel (AgNi) | |
| Electrical endurance at rated AC1 load | 150,000 operations | |
| Test button | Lockable | |
| Operating indicator | Mechanical | |
| Operating ambient temperature | −40 to +85 °C | |
| Relay protection category | RT I | |
| Mounting type | Plug-in socket mounting | |
| Electrical connection | Plug-in terminals | |
| Body dimensions (L × W × H) | 27.7 × 20.7 × 37.2 mm | |
| Relay operation | Non-latching / monostable | |
| EAN | 8012823086125 |
Frequently Asked Questions
What is the Finder 55.34.8.036.0040 used for?
The Finder 55.34.8.036.0040 is a miniature general purpose relay designed for switching electrical circuits in industrial automation, machinery control panels, PLC interfaces and auxiliary control applications. Its four changeover contacts allow one coil signal to control multiple circuits.
What coil voltage does the Finder 55.34.8.036.0040 require?
The relay operates with a 36 V AC nominal coil voltage at 50/60 Hz. It should be connected to a compatible AC control supply in accordance with the manufacturer's electrical specifications.
What is the contact rating of the Finder 55.34.8.036.0040?
The relay features four changeover contacts rated at 7 A, with a 250 V AC rated contact voltage and a 1,750 VA AC1 switching capacity. The permissible switching load depends on the connected equipment and applicable utilisation category.
Does the Finder 55.34.8.036.0040 include a test button and indicator?
Yes. This variant includes a lockable test button and a mechanical operating indicator. The test button allows manual operation for appropriate testing and commissioning procedures, while the mechanical indicator shows the relay's operating state.
How is the Finder 55.34.8.036.0040 installed?
The relay uses a plug-in mounting arrangement and is installed into a compatible Finder relay socket. Its body measures 27.7 × 20.7 × 37.2 mm. The socket must be selected to suit the 55.34 relay configuration and the intended installation.
Trusted by Automation Engineers and Equipment Manufacturers Worldwide
Finder 55 Series miniature general purpose relays provide dependable electrical switching for industrial automation, electrical control panels and machinery applications. The Finder 55.34.8.036.0040 combines a 36 V AC coil, four 7 A changeover contacts, silver-nickel contact material, a lockable test button and mechanical indication to support reliable operation in professionally designed electrical control systems.
