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40.52.9.021.0000 Finder Miniature PCB relay 2pole 8A DC 21V
Finder 40.52.9.021.0000 miniature electromechanical relay with 24 V AC coil and 8 A DPDT contacts designed for PCB and industrial control applications.
Why Choose the Finder 40.52.9.021.0000 Miniature PCB Relay?
The Finder 40.52.9.021.0000 is a compact and reliable miniature electromechanical relay designed for PCB mounting and industrial control applications. As part of the trusted Finder 40 Series relay range, it provides dependable switching performance for automation systems, electronic equipment and electrical control panels.
This relay features a double changeover (DPDT / 2CO) contact configuration with AgNi contact material, providing reliable switching for a wide range of resistive and inductive loads. Its compact construction enables integration into applications where efficient and dependable relay technology is required.
With a 24 V AC coil and 8 A contact rating, the Finder 40.52.9.021.0000 is suitable for industrial automation, control systems, OEM equipment and general-purpose switching applications requiring a robust miniature relay solution.
Key Advantages
- Compact Finder 40 Series miniature relay for industrial control applications.
- 24 V AC coil voltage suitable for automation and control circuits.
- 2 changeover contacts (DPDT / 2CO) for flexible switching configurations.
- 8 A contact rating for reliable load switching.
- AgNi contact material for dependable electrical performance.
- Suitable for control panels, automation systems and OEM equipment.
Key Features
- Finder 40 Series miniature relay.
- 2 changeover contacts (DPDT / 2CO).
- 24 V AC nominal coil voltage.
- 8 A maximum contact current.
- 8 A at 250 V AC contact rating.
- AgNi silver nickel contact material.
- PCB or socket mounting capability.
- Monostable relay operation.
- RT III protection category.
Reliable Switching for Industrial Control Systems
Miniature relays such as the Finder 40.52.9.021.0000 provide electrical isolation and dependable switching between control circuits and connected loads. Their compact footprint makes them ideal for modern automation equipment and electronic assemblies where reliability and space efficiency are important.
The Finder 40 Series combines robust relay construction, flexible contact arrangements and long service life, making it suitable for professional industrial and commercial control applications.
Typical Applications
- Industrial automation control systems.
- Electrical control panels and cabinets.
- PCB-based electronic equipment.
- OEM machinery and production equipment.
- Building automation systems.
- General-purpose switching circuits.
Technical Specifications
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| Device Type | Plug-in Relay | |
|---|---|---|
| Mounting Type | PCB, Plug-in socket | |
| Switching Current (A) | 8 A | |
| Coil / Supply Voltage | 24 V AC | |
| Contacts | 2 C/O | |
| Manufacturer | Finder | |
| Series | 40 Series | |
| Model | 40.52.9.021.0000 | |
| Product type | Miniature electromechanical relay | |
| Contact configuration | 2CO (DPDT) | |
| Rated coil voltage | 24 V AC | |
| Contact current | 8 A | |
| Contact rating | 8 A / 250 V AC | |
| Contact material | AgNi | |
| Coil frequency | 50 / 60 Hz | |
| Mounting type | PCB mounting / socket mounting | |
| Dimensions (H × W × D) | approx. 25 × 12.4 × 29 mm | |
| Operating temperature | -40…85 °C |
Frequently Asked Questions
What is the Finder 40.52.9.021.0000 used for?
The Finder 40.52.9.021.0000 is a miniature electromechanical relay used for switching and isolation in industrial automation, control panels and electronic equipment.
What coil voltage does this relay require?
The relay operates with a 24 V AC coil.
How many contacts does the Finder 40.52.9.021.0000 have?
The relay features 2 changeover contacts (DPDT / 2CO) for flexible circuit switching.
What is the contact rating of this relay?
The relay has a maximum contact rating of 8 A at 250 V AC.
Where can this relay be installed?
The Finder 40.52.9.021.0000 is suitable for PCB mounting or use with compatible relay sockets in industrial and electronic applications.
Trusted by Engineers Worldwide
Finder 40 Series relays provide reliable miniature switching solutions for automation engineers, OEM manufacturers and control system designers requiring compact and dependable relay technology.
