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Finder 39.11.0.125.0073 39 Series Interface relays and base 1 Pole 6 Amp 110..125 Volt AC/DC
Finder 39.11.0.125.0073 Series 39 MasterBASIC electromechanical interface relay module with one changeover contact, removable relay construction, screw terminal connections and DIN rail mounting for compatible industrial automation and PLC interface applications.
£22.11
Why Choose the Finder 39.11.0.125.0073 MasterBASIC Interface Relay?
The Finder 39.11.0.125.0073 is a slim electromechanical interface relay module from the Finder Series 39 MasterINTERFACE range. Designed for industrial automation, electrical control panels and signal interfacing, it provides a compact solution for switching compatible electrical circuits through a separate control input.
Part of the MasterBASIC family, the module combines a removable relay, interface socket and convenient DIN rail installation in a narrow housing. Its single changeover contact (1 CO / SPDT) provides both normally open and normally closed switching functions, making it useful for PLC interfaces, control signalling, equipment monitoring and general automation applications.
The 39.11.0.125.0073 is a specific configuration within the Series 39 range. Its control voltage, electrical ratings and any special certification requirements should be confirmed against the exact manufacturer datasheet before installation or substitution.
Key Advantages
- Slim DIN rail interface relay for space-efficient electrical control panels.
- Single changeover contact for flexible normally open and normally closed switching.
- Electromechanical switching for compatible control and signalling circuits.
- MasterBASIC modular construction for straightforward panel integration.
- Removable relay design to simplify inspection and maintenance.
- Screw terminal connections for practical industrial wiring.
- Suitable for PLC interfacing when the controller output is compatible with the module input.
- DIN rail mounting for organised installation in automation cabinets.
- Compact design for applications requiring multiple interface channels.
- Finder Series 39 platform with a range of compatible accessories and configurations.
Key Features
- Finder Series 39 MasterINTERFACE product family.
- MasterBASIC interface relay module.
- Manufacturer part number: 39.11.0.125.0073.
- Electromechanical, non-latching relay operation.
- One changeover contact (1 CO / SPDT).
- Separate control and switched-contact functions.
- Removable relay and socket arrangement.
- DIN rail installation.
- Screw terminal wiring.
- Compact modular construction for control cabinets.
- Suitable for compatible automation and signalling applications.
Specification note: The exact .125 control-voltage designation and .0073 variant-specific approval details have not been independently confirmed here. Do not substitute the 24 V AC/DC specifications of the Finder 39.11.0.024.0073 for this model. Check the product label and current Finder technical documentation before energising the module.
PLC and Industrial Control Interfacing
The Finder 39.11.0.125.0073 can serve as an interface between a compatible control output and a separate electrical circuit. Its changeover contact allows a control signal to select between two contact paths, making it useful for status signalling, equipment interlocking and automation functions.
As an electromechanical interface relay, it provides contact switching independently of the connected controller's output circuitry. The designer must ensure that the control input is compatible with the actual module voltage and that the connected load remains within the specified contact ratings.
Compact DIN Rail Installation and Maintenance
The MasterBASIC format is intended for compact electrical control cabinets where several interface relays may be installed alongside PLCs, terminal blocks and other automation equipment.
The removable relay construction helps simplify maintenance, while screw terminals provide accessible wiring connections. For replacement installations, verify the complete manufacturer part number, input supply, contact arrangement and any required certification before fitting the new module.
Typical Applications
- Industrial PLC interface circuits.
- Machine control and automation panels.
- Electrical control cabinet signal switching.
- Process monitoring and control systems.
- Equipment status indication.
- Alarm and signalling interfaces.
- Compatible actuator control circuits.
- Building automation control panels.
- Industrial machinery maintenance and replacement.
- Space-constrained DIN rail installations.
Technical Specifications
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| Device Type | Interface Relay | |
|---|---|---|
| Mounting Type | DIN rail | |
| Manufacturer | Finder | |
| Series | 39 Series MasterINTERFACE | |
| Product family | MasterBASIC | |
| Type | 39.11 | |
| Manufacturer part number | 39.11.0.125.0073 | |
| Product type | Electromechanical interface relay module | |
| Operating principle | Monostable | |
| Number of poles | 1 | |
| Contact configuration | 1 CO / SPDT | |
| Contact functions | 1 normally open and 1 normally closed path sharing a common terminal | |
| Control voltage | Confirm exact .125 variant against Finder documentation | |
| Contact current rating | Confirm exact module rating against Finder documentation | |
| Contact voltage rating | Confirm exact module rating against Finder documentation | |
| Mounting | DIN rail | |
| Terminal connection | Screw terminals | |
| Relay replacement | Removable relay element | |
| Special version | Suffix .0073; verify applicable manufacturer configuration and certification | |
| Installation | Suitable protected electrical control enclosure |
Frequently Asked Questions
What is the Finder 39.11.0.125.0073 used for?
The Finder 39.11.0.125.0073 is a MasterBASIC interface relay module for switching compatible electrical circuits in industrial automation, PLC interfacing, control panels and signalling systems.
What contact configuration does the Finder 39.11.0.125.0073 have?
The module has one changeover contact (1 CO / SPDT), providing a common terminal and normally open and normally closed switching paths.
What control voltage does the Finder 39.11.0.125.0073 require?
The exact control-voltage specification for the .125 variant should be confirmed against Finder's current technical documentation and the product label before installation. It must not be assumed to use the same 24 V AC/DC supply as the .024 variant.
Can the Finder 39.11.0.125.0073 be used with a PLC?
Yes, provided the PLC output is electrically compatible with the relay module's specified control input. The relay can then switch a separate compatible electrical circuit through its changeover contact.
Can the Finder 39.11.0.125.0073 be mounted on a DIN rail?
Yes. The Finder Series 39 MasterBASIC interface relay format is designed for DIN rail installation in suitable electrical control enclosures.
Is the Finder 39.11.0.125.0073 a latching relay?
No. It is an electromechanical monostable interface relay, meaning its contacts return to their normal position when the control input is removed.
What does SPDT mean?
SPDT stands for single-pole double-throw. It describes one changeover contact that switches a common connection between normally closed and normally open terminals.
Is the relay removable from its socket?
Yes. The MasterBASIC module uses a removable relay arrangement, allowing the relay element to be replaced with an appropriate compatible component during maintenance.
Is the Finder 39.11.0.125.0073 ATEX certified?
The .0073 suffix may identify a special configuration, but the exact certification status and permitted installation conditions must be confirmed from Finder's current product documentation. Do not assume hazardous-area suitability without the applicable certificate and equipment marking.
Can this relay switch mains-voltage loads?
Its changeover contact may be suitable for mains-voltage switching, but the exact voltage, current and load-category limits must be checked against the manufacturer's ratings for this specific module before use.
A Practical Interface Solution for Industrial Automation
The Finder 39.11.0.125.0073 MasterBASIC interface relay offers compact DIN rail installation, a flexible changeover contact and removable electromechanical relay construction. It is a practical choice for compatible PLC interfaces, industrial signalling and electrical control panels where dependable relay switching and straightforward maintenance are important.
