Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
66.82.8.230.4303 Finder Power relay 2pole 30A 230V
Finder 66.82.8.230.4303 is a 30 A double-pole normally open electromagnetic power relay with a 230 V AC coil, silver tin oxide contacts, ATEX and HazLoc compliant special-version construction, top flange mounting and Faston 250 terminals for industrial electrical switching.
Why Choose the Finder 66.82.8.230.4303 Power Relay?
The Finder 66.82.8.230.4303 is a heavy-duty 30 A industrial electromagnetic power relay designed for dependable high-current switching in industrial machinery, automation equipment and electrical control systems. Part of the Finder 66 Series, this model combines a 230 V AC operating coil, two normally open contacts (DPST-NO) and a special ATEX and HazLoc compliant configuration.
The 66.82.8.230.4303 features top flange mounting and Faston 250 quick-connect terminals, making it suitable for direct installation in industrial electrical assemblies without PCB soldering. Its silver tin oxide (AgSnO2) contact material provides a cadmium-free contact option designed for demanding electrical switching applications.
What distinguishes this variant is its ATEX (Ex ec nC) and HazLoc Class I, Division 2 configuration, intended for use in appropriately designed and certified equipment for specified hazardous locations. Combined with reinforced coil-to-contact insulation and a rated switching current of 30 A, the relay offers a practical solution for industrial control systems requiring both substantial switching capacity and specific hazardous-location compliance.
Key Advantages
- 30 A rated contact current for high-current industrial switching applications.
- 230 V AC operating coil for compatible 50/60 Hz control supplies.
- 2 NO (DPST-NO) contacts enable simultaneous switching of two independent electrical circuits.
- ATEX (Ex ec nC) compliant special version for suitable hazardous-area equipment designs.
- HazLoc Class I, Division 2 compliance for specified hazardous-location applications.
- Silver tin oxide (AgSnO2) contacts provide a cadmium-free switching material.
- Top flange mounting allows secure installation in machinery and electrical enclosures.
- Faston 250 quick-connect terminals simplify wiring and replacement.
- 7,500 VA AC1 switching capacity for suitable resistive loads.
- 250 V AC rated contact voltage and 440 V AC maximum switching voltage.
- 6 kV coil-to-contact impulse withstand voltage for robust insulation performance.
- 8 mm creepage and clearance distances between coil and contacts.
Key Features
- Finder 66 Series industrial electromagnetic power relay.
- 230 V AC nominal coil voltage.
- 50/60 Hz AC coil operation.
- 2 NO (DPST-NO) contact configuration.
- 30 A rated normally open contacts.
- Silver tin oxide (AgSnO2) contact material.
- ATEX (Ex ec nC) special version.
- HazLoc Class I, Division 2, Groups A, B, C and D hazardous-location configuration.
- Top flange mounting arrangement.
- Faston 250 terminals measuring 6.3 × 0.8 mm.
- 250 V AC rated contact voltage.
- 440 V AC maximum switching voltage.
- 7,500 VA rated AC1 load.
- 1,200 VA rated AC15 load at 230 V AC.
- 1.5 kW single-phase motor switching rating at 230 V AC.
- 3.6 VA nominal AC coil consumption.
- Reinforced insulation between the coil and contacts.
ATEX and HazLoc Power Switching for Industrial Control Systems
The Finder 66.82.8.230.4303 uses an electromagnetic coil to control two normally open power contacts. When the 230 V AC coil is energised, both contacts close, allowing current to flow through their respective load circuits. When the coil is de-energised, the contacts return to their normally open positions.
The distinguishing feature of the 4303 variant is its hazardous-location compliance. Within the Finder 66 Series ordering system, the final digit 3 identifies the ATEX (Ex ec nC) and HazLoc Class I, Division 2 special version. This differs from the standard 4300 configuration and the 4301 RT III wash-tight version.
The relay is intended for integration into equipment designed for the relevant hazardous-location classification. ATEX or HazLoc compliance does not mean the relay may be installed in every explosive atmosphere or used without additional protective measures. The installation must comply with the applicable certificate, temperature classification, enclosure requirements, electrical ratings and local regulations.
Its top flange mounting and Faston 250 terminals provide a practical alternative to PCB-mounted relays, while its AgSnO2 contacts and reinforced insulation support dependable high-current switching in suitable industrial applications.
Typical Applications
- Industrial automation equipment designed for specified hazardous locations.
- Electrical control panels requiring ATEX or HazLoc compliant relay components.
- Industrial machinery and manufacturing equipment.
- Power switching circuits in appropriately certified electrical assemblies.
- Industrial heating and process control systems.
- Boiler and burner control equipment.
- Air conditioning, ventilation and HVAC systems.
- Industrial motors and auxiliary control circuits.
- Standby generator and electrical power control equipment.
- OEM electrical assemblies requiring flange-mounted high-current relays.
Technical Specifications
Tick the specs you need, then view products that match.
| 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 | 66.82.8.230.4303 | |
| Product type | Industrial electromagnetic power relay | |
| Relay operation | Non-latching electromagnetic switching | |
| Contact configuration | 2 NO (DPST-NO) | |
| Number of poles | 2 | |
| Contact material | Silver tin oxide (AgSnO2) | |
| Nominal coil voltage | 230 V AC | |
| Coil frequency | 50/60 Hz | |
| Nominal AC coil consumption | 3.6 VA | |
| Rated contact current | 30 A | |
| Maximum peak contact current with AgSnO2 contacts | 120 A for 5 ms | |
| Rated contact voltage | 250 V AC | |
| Maximum switching voltage | 440 V AC | |
| Rated AC1 load | 7,500 VA | |
| Rated AC15 load at 230 V AC | 1,200 VA | |
| Single-phase motor rating at 230 V AC | 1.5 kW | |
| DC1 breaking capacity at 30 V DC | 25 A | |
| DC1 breaking capacity at 110 V DC | 0.7 A | |
| DC1 breaking capacity at 220 V DC | 0.3 A | |
| Minimum switching load | 1,000 mW (10 V / 10 mA) | |
| Mechanical life (series nominal) | 10 million operations | |
| Electrical life at rated AC1 load (series nominal) | 100,000 operations | |
| Typical operate time | 8 ms | |
| Typical release time | 10 ms | |
| Coil-to-contact impulse withstand voltage | 6 kV (1.2/50 µs) | |
| Coil-to-contact creepage and clearance | 8 mm | |
| Dielectric strength between open contacts | 1,500 V AC | |
| Insulation type | Reinforced insulation between coil and contacts | |
| Ambient operating temperature (series range) | −40 to +70 °C | |
| Special version | ATEX and HazLoc compliant | |
| ATEX protection designation | Ex ec nC | |
| HazLoc classification | Class I, Division 2, Groups A, B, C and D | |
| Mounting type | Top flange mounting | |
| Terminal type | Faston 250 quick-connect terminals | |
| Terminal dimensions | 6.3 × 0.8 mm | |
| Applicable relay standard | EN 61810-1 | |
| Insulation design reference | EN 60335-1 |
Frequently Asked Questions
What is the Finder 66.82.8.230.4303 used for?
The Finder 66.82.8.230.4303 is a 30 A industrial electromagnetic power relay used for switching electrical loads in machinery, automation systems and electrical control equipment. Its ATEX and HazLoc special-version configuration makes it suitable for consideration in appropriately designed hazardous-location applications.
What is the difference between the Finder 66.82.8.230.4300, 4301 and 4303?
The final digit identifies the special version. The 4300 is the standard version, the 4301 is the RT III wash-tight version, and the 4303 is the ATEX (Ex ec nC) and HazLoc Class I, Division 2 compliant version. The appropriate model should be selected according to the intended installation and environmental requirements.
What coil voltage does the Finder 66.82.8.230.4303 require?
The relay uses a 230 V AC nominal operating coil designed for 50/60 Hz supplies. It is an AC coil relay and should not be connected directly to a DC control supply.
What is the contact configuration and switching current rating?
The Finder 66.82.8.230.4303 features two normally open contacts (2 NO / DPST-NO) with a 30 A rated contact current and a 250 V AC rated contact voltage. Its AC1 rated switching capacity is 7,500 VA, subject to the applicable load and operating conditions.
Can the Finder 66.82.8.230.4303 be used in hazardous areas?
The 4303 variant is identified by Finder as an ATEX (Ex ec nC) and HazLoc Class I, Division 2 compliant relay. However, suitability depends on the precise hazardous-area classification, applicable certification, temperature limits, protective enclosure and installation requirements. The relay must be incorporated into a compliant system and used within the conditions specified by the manufacturer.
Trusted by Industrial Automation and Electrical Equipment Manufacturers
Finder 66 Series power relays offer robust high-current switching for industrial machinery, electrical control systems and OEM equipment. The Finder 66.82.8.230.4303 combines a 230 V AC coil, 30 A silver tin oxide contacts, reinforced insulation, flange-mounted Faston connections and a special ATEX/HazLoc configuration for demanding industrial applications.
