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40.31.9.110.5003 Finder Miniature PCB relay 1pole 10A DC 110V
Finder 40.31.9.110.5003 is a high-temperature wash-tight miniature power relay with a 110 V DC coil, one 12 A changeover contact, AgNi + Au contact material and 5.2 mm plug-in pins.
Why Choose the Finder 40.31.9.110.5003 Miniature Power Relay?
The Finder 40.31.9.110.5003 is a compact and dependable miniature PCB and plug-in electromechanical power relay designed for switching electrical loads in industrial, commercial and electronic equipment. As part of the Finder Series 40, it combines a single changeover contact, a standard DC coil and plug-in-compatible terminals in a space-efficient enclosure.
This high-temperature, wash-tight version provides RT III environmental protection and is suitable for demanding manufacturing and operating conditions. Its reinforced coil-to-contact insulation, high mechanical endurance and gold-plated silver-nickel contacts support reliable operation in control, automation and signalling circuits.
With a 110 V DC coil, one changeover contact rated at 12 A when PCB-mounted and 10 A when socket-mounted, the 40.31.9.110.5003 provides flexible installation in electronic assemblies and compatible Finder Series 95 sockets. Its 5.2 mm terminal pins support direct PCB or plug-in mounting.
Key Advantages
- Compact miniature power relay for PCB or plug-in installation.
- Single changeover contact for flexible circuit control.
- 12 A PCB-mounted rating for compatible electrical loads.
- 110 V DC standard coil.
- AgNi + Au contacts support dependable control and signal switching.
- High-temperature, wash-tight construction for demanding applications.
Key Features
- Finder Series 40 miniature power relay.
- Single changeover contact (SPDT).
- 12 A rated current on PCB and 10 A with a compatible socket.
- 110 V DC nominal coil voltage.
- AgNi + Au contact material.
- 5.2 mm terminal-pin length.
- Wash-tight RT III environmental protection.
- High-temperature special version rated up to +125 °C.
Reliable Switching for Electronic and Control Equipment
Miniature electromechanical power relays use an electrically energised coil to operate isolated switching contacts. The changeover configuration provides normally open and normally closed paths, enabling one relay to perform a wide range of control, interlocking and load-switching functions.
The Finder Series 40 is designed for direct PCB installation or use with compatible sockets. The high-temperature, wash-tight construction of this version makes it particularly suitable for equipment requiring enhanced environmental protection during assembly and operation.
Typical Applications
- Electronic circuit boards and control assemblies.
- Industrial automation equipment.
- Control and electrical distribution panels.
- Door and gate control systems.
- Blind, grille and shutter automation.
- Vending machines and commercial equipment.
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 | |
| Contacts | 1 C/O | |
| Manufacturer | Finder | |
| Series | Series 40 | |
| Model | 40.31.9.110.5003 | |
| Product type | Miniature PCB / plug-in electromechanical power relay | |
| Contact configuration | 1 changeover contact (SPDT) | |
| Rated contact current | 12 A on PCB; 10 A with socket | |
| Maximum peak current | 20 A | |
| Rated switching voltage | 250 V AC | |
| Maximum switching voltage | 400 V AC | |
| Rated load AC1 | 3000 VA | |
| Rated load AC15 at 230 V AC | 1000 VA | |
| Single-phase motor rating at 230 V AC | 0.55 kW | |
| DC1 breaking capacity at 24 / 110 / 220 V | 12 / 0.6 / 0.25 A | |
| Minimum switching load | 300 mW at 5 V / 5 mA | |
| Contact material | AgNi + Au | |
| Nominal coil voltage | 110 V DC | |
| Coil operating range | 80.3–165 V DC | |
| Coil resistance | 18,000 Ω | |
| Rated coil current | 6.2 mA | |
| Rated coil power | 0.65 W | |
| Mechanical life | 10,000,000 cycles | |
| Electrical life at rated AC1 load | 200,000 cycles | |
| Operate / release time | 7 / 3 ms | |
| Coil-to-contact impulse withstand voltage | 6 kV | |
| Coil-to-contact dielectric strength | 4000 V AC | |
| Dielectric strength between open contacts | 1000 V AC | |
| Environmental protection | RT III, wash-tight | |
| Special version | High temperature up to +125 °C | |
| Terminal-pin length | 5.2 mm | |
| Mounting type | Direct PCB or compatible Series 95 socket |
Frequently Asked Questions
What is the Finder 40.31.9.110.5003 used for?
This miniature power relay switches compatible electrical loads in PCB assemblies, automation equipment and industrial control systems.
What contact configuration does this relay provide?
The relay provides one changeover contact rated at 12 A when mounted directly on a PCB and 10 A when used with a compatible socket.
What coil voltage does the relay require?
The Finder 40.31.9.110.5003 has a nominal 110 V DC coil with an operating range of 80.3–165 V DC.
What does the 5003 suffix specify?
It identifies AgNi + Au changeover contacts, 5.2 mm plug-in terminal pins and the high-temperature wash-tight special version.
How can this relay be mounted?
The relay can be mounted directly onto a printed circuit board or plugged into a compatible Finder Series 95 socket.
Trusted for Professional Relay Switching
Finder Series 40 miniature power relays are used by equipment manufacturers, automation engineers and panel builders for reliable load switching in compact electronic and industrial control systems.
