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66.82.8.012.4000 Finder Power relay 2pole 30A 12V
Finder 66.82.8.012.4000 is a Series 66 flange-mounted electromechanical power relay featuring a 12 V AC coil, DPDT changeover contacts, 30 A normally open contact capability and Faston 250 terminals for industrial electrical switching applications.
£12.09
Why Choose the Finder 66.82.8.012.4000 Power Relay?
The Finder 66.82.8.012.4000 is a robust flange-mounted electromechanical power relay designed for dependable switching of electrical loads in industrial automation, machinery control and commercial electrical equipment. As part of the established Finder Series 66 power relay range, it combines high-current switching capability with convenient Faston connections and reinforced electrical insulation.
Featuring a 12 V AC operating coil and a double-pole double-throw (DPDT) contact configuration, this relay enables two separate electrical circuits to be controlled through a common electromagnetic switching mechanism. Its silver tin oxide (AgSnO2) contacts provide good resistance to electrical wear and contact welding, supporting dependable performance in demanding switching applications.
The Finder 66.82 relay family provides 30 A normally open contact capability and 10 A normally closed contact capability, subject to the connected load and operating conditions. The top flange mounting arrangement and Faston 250 quick-connect terminals make the 66.82.8.012.4000 particularly suitable for electrical equipment requiring secure mechanical installation and accessible wiring connections.
Key Advantages
- Reliable Finder Series 66 electromechanical power relay for industrial electrical switching.
- 12 V AC operating coil suitable for low-voltage AC control circuits.
- DPDT contact configuration provides flexible control of two switching circuits.
- 30 A normally open contact capability for demanding electrical loads.
- Silver tin oxide (AgSnO2) contact material supports resistance to electrical wear and contact welding.
- Top flange mounting provides secure mechanical installation.
- Faston 250 terminals enable convenient electrical connections without PCB soldering.
- Reinforced insulation between coil and contacts supports electrical separation.
- Suitable for industrial automation, HVAC equipment, electrical heating and OEM machinery.
Key Features
- Finder Series 66 power relay.
- 12 V AC nominal coil voltage.
- 50/60 Hz AC coil operation.
- Two changeover contacts (DPDT / 2 CO).
- 30 A normally open contact rating.
- 10 A normally closed contact rating.
- 250 V AC rated contact voltage.
- 440 V AC maximum switching voltage, subject to application conditions.
- Silver tin oxide (AgSnO2) contact construction.
- Faston 250 terminals measuring 6.3 × 0.8 mm.
- Top flange mounting for secure installation in electrical equipment.
- Reinforced coil-to-contact insulation with 8 mm creepage and clearance distances.
- 6 kV impulse withstand capability between coil and contacts.
- Suitable for industrial control and high-current electrical load switching.
Reliable Electrical Switching for Industrial Automation and Power Control
Electromechanical power relays such as the Finder 66.82.8.012.4000 allow a low-voltage AC control circuit to operate separate electrical loads. When the 12 V AC coil is energised, the relay's electromagnetic mechanism changes the position of its internal contacts, allowing connected circuits to be switched according to the control signal. The two changeover contacts provide both normally open and normally closed switching functions for flexible electrical control arrangements.
The Finder Series 66 is designed for applications requiring dependable contact performance, robust construction and effective electrical separation between control and load circuits. The 66.82 configuration incorporates a top flange mounting arrangement and Faston 250 connections, making it suitable for electrical cabinets, industrial equipment and OEM assemblies where direct terminal connections are preferred. Correct conductor sizing, suitable terminal connectors and appropriate circuit protection are essential when switching higher-current loads.
Typical Applications
- Industrial automation and electrical control systems.
- Industrial machinery and equipment switching circuits.
- Heating, ventilation and air conditioning (HVAC) equipment.
- Industrial washing machines and commercial appliances.
- Burners, boilers and electrical heating control systems.
- Industrial ovens and furnace control equipment.
- Auxiliary motor control and electrical load switching.
- Power management and backup generator control equipment.
- OEM electrical assemblies requiring flange-mounted relays.
Technical Specifications
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| Device Type | Power Relay | |
|---|---|---|
| Terminal Type | Faston / flat-pin | |
| Load Voltage | 440 V AC | |
| Manufacturer | Finder | |
| Series | 66 Series Power Relays | |
| Model | 66.82.8.012.4000 | |
| Manufacturer part number | 66.82.8.012.4000 | |
| Product type | Electromechanical power relay | |
| Relay type | Monostable, non-latching | |
| Contact configuration | DPDT (2 changeover contacts) | |
| Number of poles | 2 | |
| Nominal coil voltage | 12 V AC | |
| Coil supply frequency | 50/60 Hz | |
| Coil version | AC operated | |
| Normally open contact current | 30 A | |
| Normally closed contact current | 10 A | |
| Rated contact voltage | 250 V AC | |
| Maximum switching voltage | 440 V AC | |
| Contact material | Silver tin oxide (AgSnO2) | |
| Mounting type | Top flange mounting | |
| Connection type | Faston 250 quick-connect terminals | |
| Terminal dimensions | 6.3 × 0.8 mm | |
| Coil-to-contact insulation | Reinforced insulation | |
| Creepage and clearance | 8 mm between coil and contacts | |
| Impulse withstand voltage | 6 kV between coil and contacts | |
| Dielectric strength between coil and contacts | 4000 V AC | |
| Dielectric strength between open contacts | 1500 V AC | |
| Operating temperature range | −40 to +70 °C | |
| Dimensions (L × W × H) | approximately 68.5 × 33.5 × 31 mm | |
| Applicable relay standard | EN 61810-1 |
Frequently Asked Questions
What is the Finder 66.82.8.012.4000 used for?
The Finder 66.82.8.012.4000 is an electromechanical power relay designed for switching electrical loads in industrial automation, machinery control, HVAC equipment and commercial electrical systems.
What coil voltage does the Finder 66.82.8.012.4000 require?
The relay uses a 12 V AC nominal operating coil designed for a 50/60 Hz AC control supply. It should not be confused with the DC-coil versions of the Finder Series 66.
What contact configuration does this Finder relay have?
The Finder 66.82.8.012.4000 features a DPDT (double-pole double-throw) configuration with two changeover contacts, allowing two separate electrical circuits to be switched.
What is the switching current rating of this relay?
The Finder 66.82 contact system provides 30 A normally open and 10 A normally closed contact capability. The permissible switching current depends on the electrical load, operating voltage and applicable manufacturer ratings.
How is the Finder 66.82.8.012.4000 mounted?
The relay features a top flange mounting arrangement designed for secure mechanical installation. Electrical connections are made using Faston 250 quick-connect terminals measuring 6.3 × 0.8 mm.
Is the Finder 66.82.8.012.4000 suitable for PCB mounting?
The Finder 66.82 configuration is intended for flange mounting with Faston connections rather than direct PCB soldering. The Finder 66.22 family provides PCB-mounted alternatives.
What contact material is used in this relay?
The Finder 66.82.8.012.4000 uses silver tin oxide (AgSnO2) contacts, providing good resistance to electrical wear and contact welding during demanding switching operations.
Does the Finder 66.82.8.012.4000 provide electrical insulation between the coil and contacts?
Yes. The Finder Series 66 incorporates reinforced insulation between the coil and contacts, with 8 mm creepage and clearance distances and a 6 kV impulse withstand capability.
Trusted by Industrial Automation Engineers and Electrical Equipment Manufacturers
Finder Series 66 power relays are designed for electrical engineers, automation specialists and OEM equipment manufacturers requiring dependable high-current switching solutions. The Finder 66.82.8.012.4000 combines a 12 V AC operating coil, versatile DPDT contacts, silver tin oxide contact technology and convenient flange mounting with Faston connections for reliable integration into industrial and commercial electrical equipment.
