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40.51.9.024.5000 Finder Miniature PCB relay 1pole 10A DC 24V
Finder 40.51.9.024.5000 is a flux-proof electromechanical PCB relay with one 12 A AgNi gold-plated changeover contact, a 24 V DC coil and a 5.2 mm pin length.
Why Choose the Finder 40.51.9.024.5000 PCB Relay?
The Finder 40.51.9.024.5000 is a compact and dependable electromechanical PCB relay designed for switching electrical loads in industrial controls, automation equipment and electronic assemblies. As part of the established Finder Series 40 relay range, it combines a high-capacity contact system with a sensitive DC coil and a space-efficient enclosure.
This relay features a single changeover contact, providing normally open and normally closed switching functions for flexible circuit design. Its AgNi contact material with gold plating supports dependable switching, including low-level control signals, while the RT II flux-proof enclosure protects the internal mechanism during compatible printed circuit board soldering processes.
With a 24 V DC coil, a contact rating of up to 12 A when PCB-mounted and a 5.2 mm pin length, the 40.51.9.024.5000 is suitable for industrial controllers, machinery interfaces, control panels and electronic equipment requiring reliable load switching.
Key Advantages
- Compact PCB relay designed for industrial control applications.
- Single changeover contact provides normally open and normally closed switching.
- Rated for up to 12 A on a printed circuit board.
- 24 V DC coil compatible with widely used industrial control supplies.
- AgNi contacts with gold plating support dependable electrical performance.
- Suitable for direct PCB mounting or use with a compatible relay socket.
Key Features
- Finder Series 40 electromechanical relay.
- 1 CO contact configuration.
- 12 A PCB contact rating and 10 A socket contact rating.
- 24 V DC standard coil with a rated power of 0.65 W.
- AgNi contact material with gold plating.
- 5.2 mm PCB pin length.
- Flux-proof RT II protection category.
- High electrical isolation between the coil and contacts.
Reliable Switching for Industrial Control Systems
Electromechanical relays such as the Finder 40.51 provide galvanic separation between a control circuit and the connected load. Applying the rated voltage to the coil transfers the changeover contact between its normally closed and normally open states, enabling machinery, lighting, heating equipment and other electrical loads to be controlled by an automation system.
The Series 40 platform is engineered for PCB and socket applications where compact dimensions, high switching capacity and dependable isolation are required. The gold-plated contact system makes this variant particularly useful where reliable switching of control signals and general electrical loads is required.
Typical Applications
- Industrial control panels and automation equipment.
- Programmable controller output interfaces.
- Electronic circuit boards and control modules.
- Heating, ventilation and air-conditioning controls.
- Lighting and building automation systems.
- Signal switching and low-level control circuits.
Technical Specifications
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| Device Type | Plug-in Relay | |
|---|---|---|
| Mounting Type | PCB, Plug-in socket | |
| Load Voltage | 400 V AC | |
| Switching Current (A) | 12 A | |
| Coil / Supply Voltage | 24 V DC | |
| Contacts | 1 C/O | |
| Manufacturer | Finder | |
| Series | 40 Series | |
| Model | 40.51.9.024.5000 | |
| Product type | Electromechanical PCB relay | |
| Contact configuration | 1 CO | |
| Rated current | 12 A PCB / 10 A socket | |
| Maximum peak current | 20 A | |
| Rated voltage | 250 V AC | |
| Maximum switching voltage | 400 V AC | |
| AC1 rated load | 3000 VA | |
| AC15 rated load at 230 V AC | 1000 VA | |
| Single-phase motor rating | 0.55 kW | |
| Coil voltage | 24 V DC | |
| Coil operating range | 17.5–36 V DC | |
| Rated coil current | 27 mA | |
| Rated coil power | 0.65 W | |
| Coil resistance | 900 Ω | |
| Contact material | AgNi with gold plating | |
| Operate / release time | 7 / 3 ms | |
| Mechanical life | 10 million cycles | |
| Electrical life at rated load | 200,000 cycles | |
| Coil-to-contact dielectric strength | 4000 V AC | |
| Open-contact dielectric strength | 1000 V AC | |
| Impulse withstand voltage | 6 kV | |
| Protection category | RT II flux-proof | |
| Mounting type | Through-hole PCB mounting / compatible relay socket | |
| Pin length | 5.2 mm | |
| Ambient temperature range | −40 to +85 °C |
Frequently Asked Questions
What is the Finder 40.51.9.024.5000 used for?
This relay switches electrical loads and control signals in industrial automation, electronic assemblies and building-control systems.
What contact configuration does this relay have?
The 40.51.9.024.5000 has a single changeover contact, providing normally open and normally closed switching functions.
What coil voltage does the relay require?
This relay has a 24 V DC coil with a specified operating range of 17.5–36 V DC.
What current can the relay switch?
The relay is rated for up to 12 A when mounted directly on a PCB or 10 A when used with a compatible socket.
What contact material is used in the Finder 40.51.9.024.5000?
This variant uses AgNi contacts with gold plating to support dependable switching performance.
Trusted for Industrial Switching Worldwide
Finder Series 40 relays are widely used by control-panel builders, automation engineers and equipment manufacturers for dependable switching, robust electrical isolation and flexible PCB or socket installation.
