66.82.9.024.0303 Finder Power relay 2pole 30A DC 24V

Finder 66.82.9.024.0303 – 30 A ATEX Power Relay, 24 V DC, 2 NO, Flange Mount

The Finder 66.82.9.024.0303 is a heavy-duty industrial electromagnetic power relay from the Finder 66 Series, designed for reliable switching of high-current electrical loads. Featuring a 24 V DC coil, two normally open contacts (DPST-NO) and a 30 A rated contact current, this relay is suitable for industrial automation, machinery control, heating systems and power switching applications.

This model is a Class I Division 2 / ATEX power relay variant, offering additional suitability for appropriately designed electrical equipment intended for potentially explosive atmospheres. Its robust contact system uses silver cadmium oxide (AgCdO) contact material, while the top flange mounting arrangement and Faston 250 quick-connect terminals provide convenient integration into industrial electrical assemblies.

With a 1.7 W DC coil, reinforced insulation between coil and contacts and a monostable electromagnetic operating mechanism, the Finder 66.82.9.024.0303 combines practical installation with dependable electrical switching. Its two-pole normally open configuration enables simultaneous control of two separate load circuits through a single low-voltage DC control signal.

Key Advantages

• High-current switching: 30 A rated normally open contacts for appropriately rated electrical loads.
• Dual-pole operation: Two normally open contacts switch simultaneously using one electromagnetic coil.
• 24 V DC control: Compatible with commonly used industrial DC control supplies.
• ATEX / Class I Division 2 variant: Designed for use in equipment requiring suitable hazardous-location components, subject to certification conditions.
• Robust AgCdO contacts: Silver cadmium oxide contact material supports demanding electromechanical switching applications.
• Flange mounting: Top flange construction provides secure installation onto suitable equipment mounting surfaces.
• Faston connections: 6.3 mm quick-connect terminals simplify wiring and maintenance.
• Reinforced insulation: Provides electrical separation between the operating coil and switched contact circuits.
• Long mechanical endurance: Designed for up to 10 million mechanical operations under specified conditions.
• Wide operating temperature range: Suitable for ambient temperatures from −40 to +70 °C.

Key Features

• Finder 66 Series heavy-duty electromagnetic power relay.
• Two normally open contacts, DPST-NO / 2 Form A.
• Rated contact current of 30 A for suitable resistive loads.
• Rated contact voltage of 250 V AC.
• Maximum AC switching voltage of 440 V AC.
• Maximum peak contact current of 50 A.
• Rated resistive switching capacity of 7,500 VA (AC1).
• Nominal coil voltage of 24 V DC.
• Nominal coil consumption of 1.7 W.
• Nominal coil resistance of 340 Ω.
• Nominal coil current of approximately 70.5 mA.
• Silver cadmium oxide (AgCdO) contact material.
• Top flange / chassis mounting arrangement.
• Faston 250 terminals measuring 6.3 × 0.8 mm.
• Monostable, non-latching electromagnetic operation.
• ATEX / Class I Division 2 application variant.
• Reinforced coil-to-contact insulation.

Reliable High-Current Switching for Industrial and Hazardous-Location Equipment

The Finder 66.82.9.024.0303 uses a DC-operated electromagnetic coil to actuate two mechanically linked normally open contacts. When the 24 V DC coil is energised, both contacts close, allowing current to flow through the connected load circuits. When coil power is removed, the relay returns to its normal state and both contacts open. This monostable operating principle provides predictable switching for industrial control sequences, equipment operation and electrical interlocking.

The Finder 66.82 Series combines high-current switching capability, durable contact materials and practical flange mounting for professional industrial applications. The .0303 ATEX variant is particularly relevant to specialised electrical equipment where hazardous-location certification is required. Its use in potentially explosive atmospheres must comply with the exact certification marking, permitted operating conditions and installation requirements. Although the standard contact system is rated at 30 A, the applicable ATEX rating and load-specific switching limits must be observed.

Typical Applications

• Industrial automation and machinery control panels.
• Electrical equipment designed for appropriately classified hazardous locations.
• Industrial heating and temperature control systems.
• Commercial and industrial HVAC equipment.
• Power distribution and auxiliary load switching.
• Two-pole electrical switching and control applications.
• Industrial process control and monitoring equipment.
• OEM machinery and specialised industrial electrical assemblies.