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55.34.9.125.2040 Finder Miniature plugin relay 4 pole 7A DC 125V
55.34.9.125.2040 Finder Miniature plugin relay 4 pole 7A DC 125V.
This product has been discontinued
A direct replacement is available below.
Replacement product
55.34.9.125.0040 Finder Miniature plugin relay 4 pole 7A DC 125V
SKU: 55.34.9.125.0040
£10.99 ex VAT
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Why Choose the Finder 55.34.9.125.2040 General Purpose Relay?
The Finder 55.34.9.125.2040 is a versatile 125 V DC electromagnetic plug-in relay designed for industrial automation, electrical control panels and general-purpose switching applications. As part of the established Finder 55 Series, this relay features four changeover contacts (4PDT) with a rated contact current of 7 A, providing flexible control of multiple electrical circuits.
Designed for dependable electrical switching and convenient maintenance, the Finder 55.34.9.125.2040 incorporates a lockable test button and mechanical status indicator. These features assist technicians during commissioning, inspection and troubleshooting. Its four independent changeover contact sets allow multiple control circuits to be switched simultaneously using a single relay coil.
With a 125 V DC operating coil, 7 A changeover contacts and a compact plug-in construction, this relay provides a practical solution for industrial control applications using higher-voltage DC control supplies. Its socket-mounted format supports straightforward installation and replacement using compatible Finder 94 Series relay sockets.
Key Advantages
- Reliable general-purpose electromagnetic relay for industrial automation and electrical control.
- 125 V DC operating coil suitable for compatible DC control circuits.
- Four changeover contacts (4PDT) provide flexible multi-circuit switching.
- 7 A rated contact current for appropriately rated electrical loads.
- Integrated lockable test button simplifies manual functional testing.
- Mechanical status indicator provides visual confirmation of relay operation.
- Silver nickel (AgNi) contacts provide cadmium-free electrical switching.
- Four independent contact sets enable multiple control functions from one relay coil.
- Compact plug-in construction supports convenient installation and replacement.
- Compatible with suitable Finder 94 Series relay sockets.
Key Features
- Finder 55 Series general-purpose industrial relay.
- 55.34 configuration with four changeover contacts.
- 125 V DC nominal coil voltage.
- 7 A rated contact current.
- 4PDT / 4 CO contact arrangement.
- 250 V AC rated contact voltage.
- 1750 VA rated switching capacity for resistive AC loads.
- Silver nickel (AgNi) contact material.
- Lockable test button for manual relay operation.
- Mechanical status indicator for visual monitoring.
- Monostable electromagnetic operation.
- Plug-in terminal arrangement for compatible relay sockets.
- Four independent changeover contact sets for multi-circuit control.
- Compact industrial housing suitable for electrical control cabinets.
Reliable Multi-Circuit Switching for Industrial Automation
Electromagnetic relays such as the Finder 55.34.9.125.2040 provide electrically operated switching for industrial control circuits and connected equipment. When the 125 V DC coil is energised, the relay actuates its four changeover contact sets, allowing multiple electrical circuits to be switched simultaneously. When the coil is de-energised, the contacts return to their normal positions.
The 4PDT contact arrangement makes this relay particularly useful in applications requiring several switching operations from a single control signal. Its lockable test button and mechanical indicator support efficient commissioning and maintenance, while the plug-in construction simplifies relay replacement. The Finder 55 Series is suitable for industrial automation, electrical interlocking, signalling and machinery control applications where dependable electromechanical switching is required.
Typical Applications
- Industrial automation and machine control systems.
- Electrical control panels and switchgear assemblies.
- 125 V DC control and auxiliary circuits.
- Multi-circuit switching and control logic.
- Electrical interlocking and signalling circuits.
- Motor control auxiliary circuits.
- Industrial alarm and monitoring systems.
- Power distribution control and monitoring equipment.
- Process control and instrumentation interfaces.
- OEM machinery and industrial panel building.
Technical Specifications
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| Device Type | Plug-in Relay | |
|---|---|---|
| Mounting Type | Plug-in socket | |
| Switching Current (A) | 7 A | |
| Load Voltage | 250 V AC | |
| Manufacturer | Finder | |
| Series | 55 Series | |
| Model | 55.34.9.125.2040 | |
| Product type | General-purpose electromagnetic relay | |
| Relay configuration | 4PDT / 4 CO | |
| Number of poles | 4 | |
| Number of changeover contacts | 4 | |
| Rated contact current | 7 A | |
| Maximum peak contact current | 15 A | |
| Rated contact voltage | 250 V AC | |
| Maximum switching voltage | 250 V AC | |
| Rated switching capacity (AC1) | 1750 VA | |
| Nominal coil voltage | 125 V DC | |
| Coil supply type | DC | |
| DC coil operating range | 80–110% of nominal voltage | |
| Nominal coil consumption | Approximately 1 W | |
| Contact material | Silver nickel (AgNi) | |
| Operating principle | Electromagnetic, monostable | |
| Mounting type | Plug-in socket mounting | |
| Compatible socket family | Finder 94 Series | |
| Test function | Lockable test button | |
| Status indication | Mechanical indicator | |
| Operating temperature | −40 to +85 °C | |
| Environmental protection category | RT I | |
| Dimensions (L × W × H) | Approximately 27.7 × 20.7 × 37.2 mm |
Frequently Asked Questions
What is the Finder 55.34.9.125.2040 used for?
The Finder 55.34.9.125.2040 is a general-purpose electromagnetic relay used for switching multiple electrical circuits in industrial automation, machinery control, electrical panels and signalling applications.
What coil voltage does the Finder 55.34.9.125.2040 require?
This relay operates with a 125 V DC nominal coil supply. It is intended for compatible DC control circuits and should not be connected directly to an AC supply.
How many contacts does this Finder relay have?
The relay features four changeover contacts (4 CO), also described as a 4PDT configuration. This allows four separate changeover circuits to be controlled by a single relay coil.
What is the contact current rating of this relay?
The Finder 55.34.9.125.2040 has a 7 A rated contact current. The permissible switching load depends on the circuit voltage, load characteristics and applicable contact ratings.
Does the Finder 55.34.9.125.2040 have a test button?
Yes. The relay incorporates a lockable test button that allows manual operation of the relay mechanism during commissioning, inspection and maintenance. Manual testing should only be performed under appropriate electrical safety conditions.
Does this relay include a mechanical indicator?
Yes. The Finder 55.34.9.125.2040 includes a mechanical status indicator that provides visual confirmation of relay operation.
What contact material is used in the Finder 55.34.9.125.2040?
This relay uses silver nickel (AgNi) contacts, a cadmium-free contact material suitable for general-purpose electromagnetic switching applications.
How is the Finder 55.34.9.125.2040 installed?
The relay uses a plug-in terminal arrangement and is designed for installation in compatible Finder 94 Series relay sockets, enabling convenient mounting and replacement in electrical control panels.
Can the Finder 55.34.9.125.2040 operate from a 125 V AC supply?
No. The Finder 55.34.9.125.2040 is specified with a 125 V DC coil. Applications requiring an AC coil supply should use a suitable AC-coil relay with the appropriate voltage rating.
Is this relay suitable for industrial automation systems?
Yes. Its four changeover contacts, 7 A contact rating, lockable test button and plug-in construction make it suitable for many industrial automation and machine control applications, provided the coil supply and connected loads comply with the relay's electrical specifications.
Trusted by Industrial Automation and Control Panel Professionals
Finder 55 Series general-purpose relays are widely used by electrical engineers, industrial automation specialists and control panel builders for dependable electrical switching. The Finder 55.34.9.125.2040 combines four changeover contacts, a 125 V DC coil, a lockable test button and a mechanical indicator to support reliable industrial control and automation applications.
