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486170121050SMA Finder 1 CO Contacts 12V DC Modular Interface Relay with Green LED + diode Indication
Finder 486170121050SMA industrial interface relay module associated with the Finder 48.61 Series, featuring a 12 V DC control coil, 16 A single changeover contact, DIN rail mounting, screw terminals and LED indication for industrial automation and electrical control applications.
Why Choose the Finder 486170121050SMA Interface Relay Module?
The Finder 486170121050SMA, associated with the Finder 48.61 Series, is a compact industrial interface relay module designed for reliable electrical switching between low-voltage control circuits and higher-power electrical loads. Featuring a 12 V DC control coil, a 16 A changeover contact and DIN rail mounting, this relay interface provides a practical solution for industrial automation, electrical control panels and machinery control systems.
The Finder 48.61 relay interface family combines an electromechanical relay with a compatible socket assembly, enabling straightforward installation and replacement. Its single changeover contact (1 CO / SPDT) provides both normally open and normally closed switching connections, while silver-nickel (AgNi) contact material supports dependable operation with appropriately rated electrical loads.
Designed for integration into industrial control cabinets, this relay module offers screw-terminal connections, LED status indication and an integrated coil suppression arrangement. Its slim 15.8 mm width helps conserve DIN rail space, making the Finder 486170121050SMA a useful choice for PLC interfaces, electrical distribution panels, automation equipment and OEM control assemblies.
Key Advantages
- 16 A industrial interface relay suitable for switching appropriately rated electrical loads.
- 12 V DC control coil for integration with compatible low-voltage control circuits.
- Single changeover contact (1 CO / SPDT) provides flexible normally open and normally closed switching.
- Silver-nickel (AgNi) contacts offer dependable switching performance.
- DIN rail mounting enables straightforward installation within industrial control cabinets.
- 15.8 mm slimline construction helps optimise available panel space.
- Screw-terminal connections provide practical wiring access.
- Integrated LED indication assists with control circuit monitoring and troubleshooting.
- Coil suppression circuitry helps limit switching transients in compatible DC control circuits.
- Replaceable plug-in relay arrangement supports convenient maintenance.
- IP20 protection is suitable for installation within appropriately protected electrical enclosures.
Key Features
- Finder 48 Series industrial relay interface module.
- 48.61 interface relay family.
- 12 V DC nominal control voltage.
- 16 A rated contact current.
- Single-pole double-throw (SPDT / 1 CO) contact arrangement.
- Silver-nickel (AgNi) contact material.
- 250 V AC rated contact voltage.
- 400 V AC maximum switching voltage for the associated relay family.
- DIN rail installation using an integrated relay socket assembly.
- Screw-terminal electrical connections.
- LED control status indication.
- Integrated DC coil suppression.
- Monostable electromagnetic operation.
- IP20 enclosure protection rating.
- 15.8 mm module width.
- Designed for industrial automation, control panels and electrical interface applications.
Efficient PLC Interfacing and Electrical Load Switching
The Finder 486170121050SMA provides an interface between a 12 V DC control circuit and an electrically separate switching circuit. When the relay coil is energised, the internal electromagnetic mechanism transfers the common contact from the normally closed terminal to the normally open terminal. When the control voltage is removed, the relay returns to its resting position. This arrangement allows one control output to select between two switching paths without directly carrying the load current through the control electronics.
The Finder 48.61 interface relay family is particularly useful in control panels where compact DIN rail installation, accessible wiring and convenient maintenance are important. The integrated LED indicator provides a visual indication of control circuit operation, while the suppression arrangement helps manage electrical transients generated during coil switching. The replaceable relay construction allows maintenance personnel to service the switching component without replacing the complete control interface assembly.
Typical Applications
- PLC output interfacing and industrial automation systems.
- Electrical control panels and distribution cabinets.
- Industrial machinery control circuits.
- Building management and automation systems.
- Heating, ventilation and air conditioning (HVAC) controls.
- Lighting and auxiliary electrical switching.
- Pump and fan control interfaces.
- Industrial signalling and alarm circuits.
- Electrical interlocking and control logic.
- Process control and monitoring equipment.
- OEM machinery and electrical assemblies.
- DIN rail installations requiring a compact 12 V DC relay interface.
Technical Specifications
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| Device Type | Interface Relay | |
|---|---|---|
| Terminal Type | Screw | |
| Load Voltage | 400 V AC | |
| Mounting Type | DIN rail | |
| Switching Current (A) | 16 A | |
| Manufacturer | Finder | |
| Product reference | 486170121050SMA | |
| Associated relay family | 48.61 | |
| Series | Finder 48 Series | |
| Product type | Electromechanical interface relay module | |
| Mounting configuration | DIN rail-mounted relay and socket assembly | |
| Nominal control voltage | 12 V DC | |
| Control voltage type | DC | |
| Relay operating principle | Monostable | |
| Contact configuration | Single-pole double-throw (SPDT / 1 CO) | |
| Number of changeover contacts | 1 | |
| Number of poles | 1 | |
| Contact material | Silver nickel (AgNi) | |
| Rated contact current | 16 A | |
| Rated contact voltage | 250 V AC | |
| Maximum switching voltage | 400 V AC / 220 V DC | |
| Contact operation | Normally open and normally closed switching paths | |
| Connection type | Screw terminals | |
| Mounting type | DIN rail | |
| Status indication | Integrated LED | |
| Coil protection | Integrated suppression arrangement | |
| Protection rating | IP20 | |
| Module width | 15.8 mm | |
| Module height | 78.6 mm | |
| Module depth | 75.3 mm for the corresponding 48.61 screw-terminal assembly | |
| Operating temperature | −40 to +70 °C for the associated relay family | |
| Installation environment | Industrial electrical control enclosure | |
| Application category | Industrial automation, relay interfacing and electrical control |
Frequently Asked Questions
What is the Finder 486170121050SMA used for?
The Finder 486170121050SMA is a Finder 48.61 Series interface relay module used to switch electrical loads from a low-voltage control circuit. Typical applications include PLC interfaces, industrial automation, control panels, machinery control and building automation systems.
What control voltage does the Finder 486170121050SMA require?
The associated Finder 48.61 relay configuration uses a 12 V DC nominal control voltage. The control supply should be connected with the correct polarity where required by the module's integrated indication and suppression circuitry.
What is the contact rating of the Finder 486170121050SMA?
The associated Finder 48.61 relay has a 16 A rated contact current and a 250 V AC rated contact voltage. Actual permissible switching loads depend on the load characteristics, operating voltage, duty cycle and manufacturer's application ratings.
Does the Finder 486170121050SMA have normally open and normally closed contacts?
Yes. The relay uses a single changeover (1 CO / SPDT) contact, providing common, normally open and normally closed terminals. Energising the coil transfers the common contact from the normally closed path to the normally open path.
How is the Finder 486170121050SMA installed?
The Finder 48.61 interface relay family is designed for DIN rail mounting and uses screw-terminal connections for control and load wiring. The relay module also provides LED status indication and a replaceable plug-in relay arrangement. Installation should follow the connection diagram and electrical ratings of the supplied assembly.
Trusted by Industrial Automation and Control Panel Professionals
Finder 48 Series interface relay modules provide practical switching solutions for automation engineers, control panel builders and industrial maintenance teams. The Finder 486170121050SMA offers a compact 12 V DC control interface with a 16 A changeover contact, DIN rail mounting, LED indication and screw-terminal wiring for dependable integration into industrial electrical systems.
