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66.82.8.110.0303 Finder Power relay 2pole 30A 110/115V
66.82.8.110.0303 Finder Power relay 2pole 30A 110/115V.
This product has been discontinued
A direct replacement is available below.
Replacement product
66.82.8.110.4303 Finder Power relay 2pole 30A 110/115V
SKU: 66.82.8.110.4303
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Why Choose the Finder 66.82.8.110.0303 Power Relay?
The Finder 66.82.8.110.0303 is a high-current electromagnetic power relay from the Finder 66 Series, designed for industrial automation, electrical control panels and power switching applications. Featuring a 110 V AC operating coil and two normally open contacts (DPST-NO / 2 Form A) rated at 30 A, it provides dependable switching of two electrical circuits from a single control signal.
This particular relay is identified as a Class I, Division 2 / ATEX variant, making it relevant to suitably designed industrial installations requiring equipment with specific hazardous-location approvals. Its silver cadmium oxide (AgCdO) contacts and robust electromagnetic construction support demanding industrial switching applications.
The Finder 66.82.8.110.0303 features flange mounting and Faston 250 quick-connect terminals, providing a practical installation arrangement for machinery and electrical equipment. The exact part number is listed as obsolete by DigiKey, so availability and replacement suitability should be confirmed before ordering.
Key Advantages
- 30 A rated contacts provide substantial switching capacity for appropriately rated industrial loads.
- 110 V AC operating coil suits compatible industrial control systems.
- Two normally open contacts allow simultaneous switching of two separate circuits.
- Class I, Division 2 / ATEX variant for applications requiring the relevant hazardous-location certification.
- Silver cadmium oxide contacts provide switching characteristics suited to industrial power applications.
- Faston 250 terminals simplify electrical connections using compatible quick-connect connectors.
- Flange mounting supports secure installation in electrical assemblies.
- Non-latching electromagnetic operation returns the contacts to their open positions when coil power is removed.
- 8 ms operating time provides responsive electromechanical switching.
- −40 to +70 °C operating temperature range supports demanding industrial environments.
Key Features
- Finder 66 Series industrial power relay.
- 66.82 flange-mounted construction.
- 110 V AC nominal coil voltage.
- Two normally open contacts (2 NO).
- DPST-NO / 2 Form A contact arrangement.
- 30 A rated contact current.
- 250 V AC rated contact voltage.
- 440 V AC maximum switching voltage.
- Silver cadmium oxide (AgCdO) contact material.
- Class I, Division 2 / ATEX variant designation.
- Faston 250 quick-connect terminals.
- 6.3 mm nominal quick-connect terminal width.
- Non-latching electromagnetic coil.
- 8 ms operating time and 10 ms release time.
- Flange/chassis mounting arrangement.
High-Current Two-Pole Switching for Industrial Control Systems
The Finder 66.82.8.110.0303 uses an electromagnetic coil to operate two normally open contact sets. When the 110 V AC coil is energised, both contacts close, completing the connected electrical circuits. When the coil supply is removed, the relay's return mechanism opens both contacts.
Its DPST-NO arrangement allows two separate load circuits to respond to one control signal. The 30 A rated contacts make the relay suitable for high-current switching applications, provided the connected loads remain within the manufacturer's applicable voltage, current and utilisation ratings.
The .0303 hazardous-location variant is relevant where the installation requires appropriately certified components. However, suitability for a specific hazardous area depends on the relay's complete certification, installation method, enclosure and environmental conditions. The exact approval marking must be checked before use in a classified location.
For maintenance and replacement work, the coil voltage, contact configuration, contact material, mounting arrangement and hazardous-location requirements should be verified. Because this exact part number has been listed as obsolete, any proposed replacement must be assessed against the original electrical and certification requirements.
Typical Applications
- Industrial automation and machinery control systems.
- Electrical control panels and power switching assemblies.
- 110 V AC control circuits.
- High-current two-pole normally open switching.
- Industrial process control equipment.
- Machinery and auxiliary equipment interfaces.
- Electrical interlocking and equipment sequencing.
- Industrial heating and load control.
- Equipment requiring suitable hazardous-location-rated components.
- Maintenance and replacement of compatible legacy Finder 66 Series installations.
Technical Specifications
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| Device Type | Power Relay | |
|---|---|---|
| Terminal Type | Faston / flat-pin | |
| Load Voltage | 440 V AC | |
| Switching Current (A) | 30 A | |
| Manufacturer | Finder | |
| Series | 66 Series | |
| Manufacturer part number | 66.82.8.110.0303 | |
| Product type | Electromagnetic power relay | |
| Contact configuration | DPST-NO / 2 Form A | |
| Number of normally open contacts | 2 | |
| Rated contact current | 30 A | |
| Rated contact voltage | 250 V AC | |
| Maximum switching voltage | 440 V AC | |
| Maximum switching load | 13200 VA, distributor-listed maximum | |
| Nominal coil voltage | 110 V AC | |
| Coil supply type | AC | |
| Coil resistance | 930 Ω | |
| Nominal coil current | 32.6 mA | |
| Must-operate voltage | 88 V AC | |
| Must-release voltage | 22 V AC | |
| Contact material | Silver cadmium oxide (AgCdO) | |
| Operating principle | Electromagnetic, non-latching | |
| Operating time | 8 ms | |
| Release time | 10 ms | |
| Operating temperature range | −40 to +70 °C | |
| Mounting type | Flange / chassis mounting | |
| Terminal type | Faston 250 quick-connect | |
| Terminal width | 6.3 mm (0.250 inch) | |
| Variant description | Class I, Division 2 / ATEX power relay | |
| Listed approval agencies | CE, CSA, cURus, EAC, RINA, UKCA and VDE | |
| Product lifecycle | Obsolete / no longer manufactured, according to DigiKey |
Frequently Asked Questions
What is the Finder 66.82.8.110.0303 used for?
The Finder 66.82.8.110.0303 is a high-current electromagnetic power relay used for switching two electrical circuits in industrial automation, machinery control and auxiliary power applications.
What coil voltage does the Finder 66.82.8.110.0303 require?
The relay has a 110 V AC nominal coil voltage. Its control supply must match the specified AC operating requirements.
What contact arrangement does this relay have?
It features two normally open contacts, described as DPST-NO or 2 Form A. Both contacts close when the coil is energised and open when it is de-energised.
What is the contact current rating?
The Finder 66.82.8.110.0303 has a 30 A rated contact current. The permitted switching load depends on voltage, load characteristics and applicable manufacturer ratings.
Is the Finder 66.82.8.110.0303 suitable for hazardous locations?
The exact part number is described as a Class I, Division 2 / ATEX power relay variant. Suitability for a particular hazardous area must be confirmed against its complete certification, installation requirements and applicable equipment markings.
What contact material does the relay use?
The relay uses silver cadmium oxide (AgCdO) contacts, which are used in industrial power switching applications.
How is the Finder 66.82.8.110.0303 mounted?
The relay uses a flange/chassis mounting arrangement with Faston 250 quick-connect terminals for electrical connections.
What is the operating temperature range?
The specified operating temperature range is −40 to +70 °C, subject to the manufacturer's operating and installation conditions.
Is the Finder 66.82.8.110.0303 a latching relay?
No. It is a non-latching electromagnetic relay. Its normally open contacts return to their open positions when the coil is de-energised.
Is the Finder 66.82.8.110.0303 still manufactured?
DigiKey lists this exact part number as obsolete and no longer manufactured. Remaining stock may be available from specialist suppliers, but availability should be confirmed before ordering.
Can another Finder 66 Series relay replace the .0303 variant?
Not automatically. A replacement must match the required coil voltage, contact arrangement, current rating, mounting configuration and any applicable hazardous-location certifications.
Trusted by Industrial Automation and Electrical Control Professionals
Finder 66 Series power relays are designed for demanding industrial electrical switching applications. The Finder 66.82.8.110.0303 combines a 110 V AC coil, two 30 A normally open contacts, AgCdO contact material and Faston quick-connect terminals in a flange-mounted construction intended for compatible industrial control installations.
