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40.61.9.028.1000 Finder Miniature PCB relay 1pole 16A DC 28V
Finder 40.61.9.028.1000 is a 16 A miniature electromechanical power relay with a 28 V DC coil and single-pole changeover contact configuration, designed for electrical switching in industrial automation, control panels and electronic equipment.
Why Choose the Finder 40.61.9.028.1000 Miniature Power Relay?
The Finder 40.61.9.028.1000 is a compact and reliable 16 A miniature electromechanical power relay designed for electrical switching in industrial automation, control panels and electronic equipment. As part of the established Finder 40 Series miniature PCB relay family, it combines high-current switching capability with a space-efficient construction suitable for industrial and OEM applications.
Featuring a 28 V DC operating coil and a single-pole changeover (SPDT/1 CO) contact configuration, this relay enables low-voltage control circuits to operate higher-current electrical loads. Its electromagnetic switching mechanism provides galvanic isolation between the coil and contact circuits, supporting reliable operation in automation systems and electronic control assemblies.
With a 16 A rated contact current and a 250 V AC nominal contact voltage, the Finder 40.61 relay family is suitable for switching resistive loads, lighting circuits and industrial control equipment within the specified electrical ratings. The compact PCB-compatible design supports efficient installation in electrical assemblies, while compatible Finder relay sockets offer additional mounting flexibility.
Key Advantages
- Compact 16 A miniature power relay for industrial and electronic switching applications.
- 28 V DC nominal coil voltage for compatible DC control circuits.
- Single-pole changeover (SPDT/1 CO) contact configuration for flexible switching.
- 250 V AC nominal contact voltage suitable for industrial electrical loads.
- 4,000 VA AC-1 switching capacity for suitable resistive loads.
- Low-power electromagnetic coil helps minimise control-circuit power consumption.
- Compact construction supports space-efficient PCB and control-panel layouts.
- Reinforced insulation provides electrical separation between coil and contacts.
- Compatible with selected Finder 95 Series relay sockets for flexible installation.
Key Features
- Finder 40 Series miniature electromechanical relay.
- 40.61 relay type with one changeover contact.
- 16 A nominal contact switching current.
- 28 V DC nominal coil voltage.
- SPDT (1 CO) contact configuration.
- 250 V AC rated contact voltage.
- 400 V AC maximum switching voltage.
- 4,000 VA rated AC-1 switching capacity.
- Approximately 0.65 W DC coil consumption.
- Approximately 1,200 Ω coil resistance.
- 20.5–42 V DC standard coil operating range.
- 5 mm contact terminal pin pitch.
- Reinforced coil-to-contact insulation with 6 kV impulse withstand capability.
- Compact housing with approximately 29 × 12.4 × 25 mm body dimensions.
- Suitable for PCB mounting and compatible socket-based installations.
Reliable Electrical Switching for Industrial Automation
Electromechanical relays such as the Finder 40.61 operate by energising an electromagnetic coil to change the position of their electrical contacts. This enables a low-voltage control signal to switch a separate load circuit, making relays essential components in industrial automation, machinery control and electrical interface applications.
The Finder 40 Series is designed for compact electrical assemblies requiring dependable switching and efficient use of installation space. Its PCB-compatible construction, reinforced coil-to-contact insulation and range of compatible socket accessories support integration into modern industrial control equipment. The 28 V DC coil configuration is particularly useful where the available control supply matches this nominal operating voltage.
Typical Applications
- Industrial automation and machine control circuits.
- Electrical control panels and switching assemblies.
- PLC output interfacing and relay control modules.
- Printed circuit board assemblies and electronic equipment.
- Lighting control and suitable resistive load switching.
- Motor control interfaces and auxiliary control circuits.
- Building automation and equipment control systems.
- OEM machinery and industrial electronic products.
Technical Specifications
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| Device Type | Plug-in Relay | |
|---|---|---|
| Mounting Type | PCB, Plug-in socket | |
| Switching Current (A) | 16 A | |
| Load Voltage | 400 V AC | |
| Manufacturer | Finder | |
| Series | 40 Series Miniature PCB/Plug-in Relays | |
| Model | 40.61.9.028.1000 | |
| Product type | Miniature electromechanical power relay | |
| Relay configuration | Monostable | |
| Contact arrangement | 1 CO / SPDT (single-pole changeover) | |
| Number of poles | 1 | |
| Rated contact current | 16 A | |
| Rated contact voltage | 250 V AC | |
| Maximum switching voltage | 400 V AC | |
| Rated AC-1 switching capacity | 4,000 VA | |
| Nominal coil voltage | 28 V DC | |
| Coil type | Standard DC electromagnetic coil | |
| Nominal coil consumption | Approximately 0.65 W | |
| Coil resistance | Approximately 1,200 Ω | |
| Nominal coil current | Approximately 23 mA | |
| Coil operating voltage range | 20.5–42 V DC | |
| Coil-to-contact insulation | Reinforced insulation | |
| Coil-to-contact clearance and creepage | 8 mm | |
| Coil-to-contact impulse withstand voltage | 6 kV | |
| Contact terminal pin pitch | 5 mm | |
| Mounting type | PCB mounting / compatible relay socket | |
| Compatible socket family | Finder 95 Series, subject to variant compatibility | |
| Body dimensions (L × W × H) | Approximately 29 × 12.4 × 25 mm |
Frequently Asked Questions
What is the Finder 40.61.9.028.1000 used for?
The Finder 40.61.9.028.1000 is a 16 A miniature electromechanical relay used to switch electrical loads in industrial automation, control panels, PCB assemblies and electronic control equipment.
What coil voltage does the Finder 40.61.9.028.1000 require?
This relay features a 28 V DC nominal operating coil. The standard 28 V DC coil has an operating voltage range of approximately 20.5–42 V DC under specified conditions.
What is the contact current rating of this relay?
The Finder 40.61 relay family provides a 16 A rated contact current and a nominal contact voltage of 250 V AC. The permissible switching current depends on the connected load and operating conditions.
What contact configuration does the Finder 40.61.9.028.1000 have?
The relay uses a single-pole changeover (SPDT/1 CO) contact arrangement, allowing switching between normally open and normally closed contact paths through a common terminal.
Where can the Finder 40.61.9.028.1000 be installed?
The Finder 40.61 relay family is designed for printed circuit board mounting and installation using compatible Finder 95 Series relay sockets. The appropriate mounting accessory should be selected according to the relay variant and installation requirements.
Trusted by Industrial Automation Professionals Worldwide
Finder 40 Series miniature relays are widely used by electrical engineers, automation specialists and OEM equipment manufacturers for dependable electrical switching. Their compact construction, versatile contact configurations and compatible mounting accessories make them a practical solution for industrial control systems, electronic assemblies and automated machinery.
