29 March, 2024

The unknown ATEX world

27 March, 2020

The 481 encapsulated coil is for the most common hydraulic applications. This is the first Ex-m encapsulated coil with an external armour (and not with the explosion-proof casing) for ATEX environments with T3 temperature class for gas (Zone 1), dust (Zone 21), and mines (Category M2) that doesn’t need to be strongly depowered as coils with explosion-proof casings do to ensure temperature classes T5 and T6 (low surface temperature).

This feature allows solenoid valve manufacturers to comply with all applicable standards, while continuing to use standard products in potentially explosive environments without having to create new valve bodies. Resulting in considerably lower costs, the coil is encapsulated in an external magnetic armour, its body and flanges featuring a zinc and nickel anti-corrosion coating that can withstand up to 240 hours of salt spray to white rust and up to 720 hours to red rust. The coil has an IP65/IP69K protection rating according to the IEC-EN 60529 standard and can be powered with a voltage ranging from 6 to 240 V, both AC and DC. It measures 22 mm in internal diameter, 45 mm in external diameter, and 54.5 mm in height, which are the most common dimensions in hydraulics.

www.atam.co.uk




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