66.82.8.024.4303 Finder Power relay 2pole 30A 24V

Why Choose the Finder 66.82.8.024.4303 ATEX Power Relay?

The Finder 66.82.8.024.4303 is a robust industrial electromagnetic power relay designed for high-current electrical switching in industrial automation, power distribution and electrical control systems. Featuring a 24 V AC operating coil, DPST-NO (double-pole single-throw, normally open) contacts and a flange-mounted housing, this relay provides dependable switching performance for demanding electrical applications.

As part of the established Finder Series 66 power relay range, the 66.82.8.024.4303 combines high switching capacity with reinforced electrical insulation and a specialised construction intended for hazardous-location applications. The 4303 version identifies silver tin oxide (AgSnO2) contacts, a two-pole normally open contact arrangement and the special ATEX (Ex ec nC) / HazLoc Class I, Division 2 variant.

With a 24 V AC coil, 25 A nominal contact rating for the special version and Faston 250 quick-connect terminals, the Finder 66.82.8.024.4303 is suitable for industrial control panels, electrical switching equipment, heating systems and automation installations. Its top-flange mounting arrangement enables secure installation on a suitable mounting surface without requiring direct PCB mounting.

Key Advantages

• Industrial electromagnetic power relay designed for reliable electrical load switching.
• 24 V AC operating coil suitable for industrial AC control circuits.
• DPST-NO contact configuration enables simultaneous switching of two normally open circuits.
• 25 A nominal contact rating associated with the Series 66 special hazardous-location version.
• ATEX (Ex ec nC) and HazLoc Class I, Division 2 variant for appropriately designed hazardous-location equipment.
• Silver tin oxide (AgSnO2) contacts provide resistance to electrical wear and contact arcing.
• Reinforced insulation between coil and contacts supports electrical safety.
• 8 mm creepage and clearance distances provide effective separation between control and load circuits.
• Faston 250 terminals simplify electrical connections during installation and maintenance.
• Top-flange mounting allows secure installation within industrial equipment and electrical enclosures.

Key Features

• Finder Series 66 industrial power relay.
• 24 V AC rated coil voltage.
• 50/60 Hz AC coil operation.
• DPST-NO (2 Form A) contact arrangement with two normally open contacts.
• 25 A nominal contact rating for the special version.
• Silver tin oxide (AgSnO2) contact material.
• ATEX Ex ec nC special version for hazardous-location applications.
• HazLoc Class I, Division 2 special version.
• 250 V AC nominal switching voltage within the Series 66 contact specification.
• 440 V AC maximum switching voltage within the Series 66 range.
• 3.6 VA nominal AC coil consumption.
• 6 kV coil-to-contact impulse withstand voltage.
• 4,000 V AC coil-to-contact dielectric strength.
• 8 mm creepage and clearance distance between coil and contacts.
• Faston 250 (6.3 × 0.8 mm) quick-connect terminals.
• Top-flange mounting for secure mechanical installation.
• RT II environmental protection category.
• −40 to +70 °C standard Series 66 ambient temperature range, subject to hazardous-location certification conditions.

Reliable Power Switching for Industrial and Hazardous-Location Control Systems

Electromagnetic power relays such as the Finder 66.82.8.024.4303 allow industrial control circuits to operate higher-current electrical loads through mechanically operated switching contacts. When the 24 V AC coil is energised, the relay closes its two normally open contacts, allowing current to flow through the connected circuits. When the coil is de-energised, the contacts return to their normally open position.

The DPST-NO contact arrangement enables simultaneous switching of two separate electrical circuits or conductors. This makes the relay suitable for electrical power control, machinery switching and automation equipment where coordinated operation of two circuits is required.

The Finder 66.82.8.024.4303 is distinguished by its special ATEX and HazLoc version, designed for use in appropriately certified hazardous-location equipment. The reinforced coil-to-contact insulation, robust contact construction and flange-mounted format make it suitable for demanding industrial installations. Hazardous-location suitability must be assessed against the specific certification, permitted electrical ratings, ambient temperature and installation conditions.

Unlike the PCB-mounted Finder 66.22 variants, the 66.82 configuration uses a top-flange mounting arrangement and Faston 250 quick-connect terminals. This supports practical installation in electrical enclosures and equipment assemblies where direct wiring and secure mechanical mounting are preferred.

Typical Applications

• Industrial automation and electrical control systems.
• Hazardous-location electrical equipment, where the relay certification and installation conditions are satisfied.
• Industrial power switching and control assemblies.
• Heating, ventilation and air conditioning (HVAC) systems.
• Industrial ovens, burners and boiler control equipment.
• Electrical generators and power management equipment.
• Industrial machinery and motor control circuits.
• Power distribution and electrical switching panels.
• Industrial process control and monitoring equipment.
• OEM machinery and specialised industrial electrical assemblies.