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66.82.8.110.4303 Finder Power relay 2pole 30A 110/115V
Finder 66.82.8.110.4303 is a Series 66 flange-mounted electromechanical power relay featuring a 110 V AC coil, two normally open 30 A contacts and Faston 250 connections for industrial electrical switching and control applications.
Why Choose the Finder 66.82.8.110.4303 Power Relay?
The Finder 66.82.8.110.4303 is a heavy-duty flange-mounted electromechanical power relay designed for switching 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 performance with practical Faston terminal connections and a robust mechanical construction.
Featuring a 110 V AC operating coil and a two normally open (2 NO / DPST-NO) contact arrangement, this relay provides simultaneous control of two electrical circuits through a single electromagnetic operating mechanism. The Series 66 contact system is designed for demanding power switching applications, with silver tin oxide (AgSnO2) contact technology offering resistance to contact welding and electrical wear.
With a 30 A rated contact current, 250 V AC rated contact voltage and Faston 250 quick-connect terminals, the Finder 66.82.8.110.4303 is suitable for electrical control assemblies requiring secure mechanical mounting and accessible wiring connections. Its flange-mounted format makes it particularly useful in industrial equipment, HVAC systems, electrical heating applications and OEM machinery.
Key Advantages
- Robust Finder Series 66 electromechanical power relay for industrial electrical switching.
- 110 V AC operating coil suitable for industrial AC control circuits.
- Two normally open contacts (DPST-NO) enable simultaneous switching of separate electrical loads.
- 30 A rated contact current for demanding power switching applications.
- Silver tin oxide (AgSnO2) contact technology provides resistance to electrical wear and contact welding.
- Flange mounting arrangement supports secure installation in electrical equipment.
- Faston 250 quick-connect terminals simplify electrical wiring and equipment assembly.
- Reinforced insulation between coil and contacts supports effective electrical separation.
- Suitable for industrial automation, HVAC equipment, electrical heating and OEM control systems.
Key Features
- Finder Series 66 power relay.
- 110 V AC nominal coil voltage.
- 50/60 Hz AC coil operation.
- Two normally open contacts (2 NO / DPST-NO).
- 30 A rated contact current.
- 250 V AC rated contact voltage.
- 440 V AC maximum switching voltage for the Series 66 contact system.
- 7500 VA rated resistive switching load (AC-1).
- Silver tin oxide (AgSnO2) contact material.
- Faston 250 terminals for convenient electrical connections.
- Top flange mounting for secure mechanical installation.
- Reinforced coil-to-contact insulation.
- 6 kV impulse withstand capability between coil and contacts.
- 8 mm creepage and clearance distances between coil and contacts.
- Electromagnetic, monostable relay operation.
Reliable Electrical Switching for Industrial Automation and Power Control
Electromechanical power relays such as the Finder 66.82.8.110.4303 enable electrical control circuits to switch separate power loads through an electromagnetic operating mechanism. When the 110 V AC coil is energised, the relay closes its two normally open contacts, allowing electrical current to flow through the connected circuits. When the coil is de-energised, the contacts return to their normally open positions, disconnecting the controlled loads.
The Finder Series 66 is designed for applications requiring robust electrical contacts, reliable switching performance and reinforced separation between control and load circuits. The 66.82 flange-mounted configuration provides convenient Faston terminal connections for electrical panels, industrial machinery and commercial equipment. Correct conductor sizing, compatible terminal connectors, protective devices and load assessment are essential for reliable operation at higher switching currents.
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.
- Electrical heating and temperature control systems.
- Industrial ovens, boilers and burner control equipment.
- Auxiliary motor and electrical load switching circuits.
- Power management and standby generator control equipment.
- OEM electrical assemblies requiring flange-mounted power relays.
Technical Specifications
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| Device Type | Power Relay | |
|---|---|---|
| Terminal Type | Faston / flat-pin | |
| Switching Current (A) | 30 A | |
| Load Voltage | 440 V AC | |
| Manufacturer | Finder | |
| Series | 66 Series Power Relays | |
| Model | 66.82.8.110.4303 | |
| Manufacturer part number | 66.82.8.110.4303 | |
| Product type | Electromechanical power relay | |
| Contact configuration | 2 normally open contacts (DPST-NO) | |
| Number of poles | 2 | |
| Nominal coil voltage | 110 V AC | |
| Coil type | AC operated | |
| Coil frequency | 50/60 Hz | |
| Series AC coil power consumption | 3.6 VA at 50 Hz | |
| Rated contact current | 30 A | |
| Rated contact voltage | 250 V AC | |
| Maximum switching voltage | 440 V AC | |
| Rated resistive switching load (AC-1) | 7500 VA | |
| Rated AC-15 load at 230 V AC | 1200 VA | |
| Single-phase motor rating at 230 V AC | 1.5 kW | |
| 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 | |
| Relay operation | Monostable, non-latching | |
| Coil-to-contact insulation | Reinforced insulation | |
| Impulse withstand voltage | 6 kV between coil and contacts | |
| Dielectric strength between coil and contacts | 4000 V AC | |
| Creepage and clearance | 8 mm between coil and contacts | |
| Series operating temperature range | −40 to +70 °C | |
| Applicable relay standard | EN 61810-1 |
Frequently Asked Questions
What is the Finder 66.82.8.110.4303 used for?
The Finder 66.82.8.110.4303 is an electromechanical power relay intended for switching electrical loads in industrial automation, machinery control, HVAC equipment and commercial electrical systems.
What coil voltage does the Finder 66.82.8.110.4303 require?
The relay uses a 110 V AC nominal operating coil designed for an appropriate AC control supply. It should not be operated directly from a DC supply unless specifically authorised by the manufacturer.
What contact configuration does this Finder relay have?
The Finder 66.82.8.110.4303 features two normally open contacts (2 NO / DPST-NO), allowing two separate electrical circuits to be switched simultaneously when the relay coil is energised.
What is the rated switching current of this relay?
The Finder Series 66 normally open contact system has a 30 A rated switching current. The permissible switching load depends on the operating voltage, load type, duty cycle and applicable manufacturer specifications.
How is the Finder 66.82.8.110.4303 mounted?
The relay uses a top flange mounting arrangement for secure mechanical installation and Faston 250 quick-connect terminals measuring 6.3 × 0.8 mm for electrical connections.
What contact material is used in the Finder 66.82.8.110.4303?
The Finder Series 66 uses silver tin oxide (AgSnO2) contact technology, designed to provide resistance to electrical wear and contact welding during demanding switching operations.
Does the Finder 66.82.8.110.4303 provide electrical insulation between the coil and contacts?
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.
Can the Finder 66.82.8.110.4303 replace a DPDT changeover relay?
A two normally open contact relay cannot automatically replace a DPDT changeover relay because it does not provide the same normally closed switching functions. The contact arrangement, coil voltage, terminal layout and load ratings must be checked before selecting a replacement.
Trusted by Industrial Automation Engineers and Electrical Equipment Manufacturers
Finder Series 66 power relays are designed for industrial automation engineers, electrical equipment designers and OEM manufacturers requiring dependable high-current switching solutions. The Finder 66.82.8.110.4303 combines a 110 V AC operating coil, two normally open power contacts, robust contact technology and practical flange mounting with Faston connections for integration into industrial and commercial electrical equipment.
