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55.34.8.048.2040 Finder Miniature plugin relay 4 pole 7A 48V
55.34.8.048.2040 Finder Miniature plugin relay 4 pole 7A 48V.
This product has been discontinued
A direct replacement is available below.
Replacement product
55.34.8.048.0040 Finder Miniature plugin relay 4 pole 7A 48V
SKU: 55.34.8.048.0040
£9.37 ex VAT
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Why Choose the Finder 55.34.8.048.2040 Industrial Relay?
The Finder 55.34.8.048.2040 is a compact and dependable general-purpose electromechanical industrial relay designed for switching, signalling and control applications in industrial automation systems, machinery and electrical control panels. As part of the established Finder 55 Series, this plug-in relay provides versatile multi-circuit switching with reliable electromagnetic operation.
Featuring four changeover contacts (4PDT) with a rated contact current of 7 A, the Finder 55.34.8.048.2040 enables several electrical circuits to be controlled using a single switching signal. Its 48 V AC operating coil is suitable for industrial control installations using low-voltage alternating-current supplies.
The relay incorporates silver nickel (AgNi) contacts for dependable, cadmium-free electrical switching. Its compact plug-in construction allows convenient installation and replacement using compatible Finder relay sockets, making it a practical choice for electrical engineers, machine builders and industrial maintenance professionals.
Key Advantages
- Reliable industrial electromechanical relay for automation and electrical control applications.
- Four changeover contacts (4PDT) provide flexible switching of multiple circuits.
- 7 A rated contact current suitable for general-purpose electrical switching.
- 48 V AC operating coil compatible with suitable industrial AC control supplies.
- Silver nickel (AgNi) contacts provide cadmium-free switching technology.
- Compact plug-in construction simplifies installation, servicing and replacement.
- Compatible with appropriately selected Finder Series 94 relay sockets.
- Four separate changeover contact sets enable signalling, interlocking and auxiliary switching.
- Suitable for industrial machinery, electrical panels and OEM automation equipment.
Key Features
- Finder 55 Series general-purpose industrial relay.
- 55.34 configuration with four changeover contacts.
- 4PDT contact arrangement for multi-circuit switching.
- 7 A nominal contact current.
- 48 V AC nominal coil voltage.
- 50/60 Hz AC coil operation.
- 250 V AC nominal switching voltage.
- 1750 VA rated resistive switching capacity.
- Silver nickel (AgNi) contact material.
- 770 Ω nominal coil resistance.
- Monostable electromagnetic operating mechanism.
- Plug-in terminals for compatible industrial relay sockets.
- Compact construction for electrical control panels and machinery.
Reliable Multi-Circuit Switching for Industrial Automation
Industrial electromechanical relays such as the Finder 55.34.8.048.2040 provide electrically isolated switching between control and load circuits. When the 48 V AC coil is energised, the relay's electromagnetic mechanism changes the position of its four changeover contacts, allowing connected circuits to be switched according to the requirements of the control system.
The Finder 55 Series is designed for general-purpose electrical switching in industrial machinery, automation equipment and control panels. Its plug-in construction allows installation into compatible relay sockets, simplifying maintenance and replacement without extensive rewiring.
With four changeover contact sets rated at 7 A, this relay is particularly useful where a single control command must operate several auxiliary circuits. Typical functions include electrical interlocking, status indication, control sequencing and switching of appropriately rated electrical loads. The contact ratings and electrical characteristics of the connected equipment should always be considered during relay selection.
Typical Applications
- Industrial electrical control panels and switchgear assemblies.
- Machinery automation and auxiliary control circuits.
- PLC interface and relay-based control systems.
- Electrical interlocking and sequential switching arrangements.
- Industrial signalling, indication and alarm circuits.
- Heating, ventilation and air conditioning (HVAC) controls.
- Pump and fan control auxiliary circuits.
- Manufacturing and production line equipment.
- Building automation and electrical control installations.
- Hoists, cranes and material handling control systems.
- OEM machine building and electrical panel manufacturing.
- Maintenance and replacement of compatible industrial relays.
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 | 55.34.8.048.2040 | |
| Product type | Industrial electromechanical relay | |
| Relay configuration | 4PDT (four-pole double-throw) | |
| Number of contacts | 4 changeover (CO) | |
| Rated contact current | 7 A | |
| Nominal switching voltage | 250 V AC | |
| Rated resistive switching capacity (AC-1) | 1750 VA | |
| Nominal coil voltage | 48 V AC | |
| Coil supply type | AC | |
| Coil frequency | 50/60 Hz | |
| Nominal coil resistance | 770 Ω | |
| Contact material | Silver nickel (AgNi) | |
| Operating principle | Electromagnetic, monostable | |
| Connection type | Plug-in terminals | |
| Mounting type | Socket mounting | |
| Compatible socket family | Finder Series 94, subject to socket model | |
| Operating temperature range | −40 to +85 °C | |
| Dimensions (L × W × H) | approximately 27.7 × 20.7 × 37.2 mm |
Frequently Asked Questions
What is the Finder 55.34.8.048.2040 used for?
The Finder 55.34.8.048.2040 is an industrial electromechanical relay used to switch multiple electrical control and auxiliary load circuits in machinery, automation systems and electrical control panels. Its four changeover contacts provide flexible switching from a single control signal.
What coil voltage does the Finder 55.34.8.048.2040 require?
The relay operates using a 48 V AC coil supply at 50/60 Hz. It is intended for industrial control circuits providing the appropriate alternating-current voltage and must not be confused with the 48 V DC coil variants available within the Finder 55 Series.
How many contacts does the Finder 55.34.8.048.2040 have?
The relay features four changeover contacts (4PDT), each providing normally open and normally closed switching paths. The contacts have a nominal current rating of 7 A, subject to the connected electrical load and applicable switching conditions.
What contact material is used in this relay?
The Finder 55.34.8.048.2040 uses silver nickel (AgNi) contacts, a cadmium-free contact material used in the Finder 55 Series for dependable electrical switching in suitable industrial control applications.
How is the Finder 55.34.8.048.2040 installed?
The relay uses a plug-in mounting arrangement and can be installed into a compatible Finder Series 94 socket designed for the four-pole 55.34 configuration. This allows convenient installation into electrical control panels and simplifies relay replacement during maintenance.
Trusted by Industrial Automation and Control Engineers Worldwide
Finder 55 Series industrial relays are widely used by electrical engineers, automation specialists and machine builders for dependable electromechanical switching. The Finder 55.34.8.048.2040 combines a 48 V AC coil, four 7 A changeover contacts, silver nickel contact technology and convenient plug-in installation to provide a versatile solution for industrial control, signalling and automation applications.
