Presentation: IA78-type devices are double-blade Single phase disconnectors with vertical opening for vertical or suspended installations and manual operating mechanism. They are manufactured according to IEC 62271-1.

Advantages and construction details:

• Sturdy design and hot dip galvanized steel chassis.
• Disconnecting  actually visible to the operator, which provides great security.
• Economic cost compared to more advanced technology solutions.
• Use of quality galvanizad parts and bearings for longer life.
• Coated copper contacts and blades "nickguard" that improve the electrical characteristics and allow better performance in high pollution environments.
• Manual operating mechanism with head driver, and different accessories for different types of assembly, direct or through panel operation.

Main applications: Control and isolation as well as overcurrent protection in networks and power distribution equipment, overhead diversión lines, overhead to undeground connections, for preventive and corrective maintenance. Special applications for  neutral isolating of transformers.

Range: from 1 KV to 36 KV with currents up to 1250 A

Options:

• Creepage distances levels I to III, according to IEC.
• Lockable padlock facility on head driver.
• Interlocking with other devices with key-lock.
• Possibility of incorporating signaling auxiliary contacts open-closed.

DOWNLOAD PDF CATALOGUE: sec_ext_1_2011.pdf

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