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40.51.7.028.0300 Finder Miniature PCB relay 1pole 10A DC 28V
Finder 40.51.7.028.0300 electromechanical relay with a 28 V DC coil, one changeover contact and integrated test button for industrial control and automation switching applications.
Why Choose the Finder 40.51.7.028.0300 Industrial Relay?
The Finder 40.51.7.028.0300 is a compact and reliable electromechanical relay designed for switching and control applications in industrial automation, electrical panels and building management systems. As part of the proven Finder 40 series relay range, it provides dependable switching performance, electrical isolation and long service life for professional control applications.
This relay is designed for applications requiring reliable signal switching and load control in compact electrical systems. Its space-saving construction and PCB mounting format allow easy integration into automation equipment, interface modules and industrial control assemblies.
With a 28 V DC coil supply and a single changeover contact (SPDT) configuration with test button and mechanical indicator, the Finder 40.51.7.028.0300 provides flexible switching capability for industrial control and automation circuits.
Key Advantages
- Compact electromechanical relay designed for industrial switching applications.
- Single changeover contact configuration for flexible circuit control.
- 28 V DC coil voltage suitable for dedicated control systems.
- Integrated visual indication and test functionality for easier maintenance.
- Reliable electrical isolation between control and switched circuits.
- Space-saving PCB mounting design for automation equipment.
Key Features
- Finder 40 series miniature relay.
- 1 changeover contact (SPDT).
- 28 V DC coil supply.
- 10 A contact rating for general switching duties.
- PCB mounting format.
- Integrated mechanical indicator and test button.
- Reliable electromechanical switching technology.
- Suitable for industrial automation and control panels.
Reliable Switching for Industrial Control Systems
Electromechanical relays such as the Finder 40.51.7.028.0300 provide dependable switching by using an electromagnetic coil to operate isolated output contacts. This enables low-power control signals to safely manage electrical loads in a wide range of industrial and automation applications.
The Finder 40 series is widely used by electrical engineers, panel builders and automation professionals requiring compact relays with proven reliability. The integrated indicator and test button help simplify commissioning, fault finding and maintenance procedures.
Typical Applications
- Industrial automation control systems.
- Electrical control panels and switchboards.
- PLC interface and signal switching applications.
- Building automation equipment.
- Machine control systems.
- General electrical switching applications.
Technical Specifications
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| Device Type | Plug-in Relay | |
|---|---|---|
| Mounting Type | PCB | |
| Switching Current (A) | 10 A | |
| Coil / Supply Voltage | 28 V DC | |
| Contacts | 1 C/O | |
| Manufacturer | Finder | |
| Series | 40 Series | |
| Model | 40.51.7.028.0300 | |
| Product type | Electromechanical relay | |
| Contact configuration | 1 changeover (SPDT) | |
| Rated contact current | 10 A | |
| Coil voltage | 28 V DC | |
| Coil type | DC coil | |
| Mounting type | PCB mounting | |
| Contact material | AgNi | |
| Protection category | RT III |
Frequently Asked Questions
What is the Finder 40.51.7.028.0300 used for?
The Finder 40.51.7.028.0300 is an electromechanical relay used for switching and isolating electrical control circuits in industrial automation and electrical systems.
What coil voltage does this relay require?
The Finder 40.51.7.028.0300 uses a 28 V DC coil.
How many contacts does this relay have?
The relay features one changeover contact (SPDT) for flexible switching applications.
What additional features are included?
The relay includes a mechanical indicator and lockable test button to support easier testing and maintenance.
Where is this relay typically installed?
The relay is typically installed on printed circuit boards and within industrial control equipment, automation systems and electrical panels.
Trusted for Industrial Switching Applications
Finder relays are widely used by electrical engineers and automation professionals to deliver reliable switching, isolation and control in modern industrial and building systems.
