Mexico's Market Leader in Medium Voltage Protection Equipment Manufacturing

With the highest standards and strict process control, we produce Air-Insulated Distribution Substations for disconnection and protection of medium voltage networks, ranging from 7.5 kV up to 38 kV.

We offer the finest current-limiting fuses with ultra-fast operation, rated up to 630 A, suitable for coordination applications.

Additionally, we provide a wide range of spare parts and accessories to fully support our customers.

Air-Insulated Distribution Substations

DRIWISA® Air-Insulated Compact Substations are designed for application in medium voltage distribution networks (4.16 kV to 38 kV), operating in conjunction with power transformers (substation type) and distribution switchboards.

Thanks to their design and manufacturing quality, DRIWISA® compact substations are completely safe and have been laboratory-tested in compliance with both national and international standards.

For higher capacities, we integrate vacuum circuit breakers rated up to 1250 A.

DRIWISA® High Voltage Current-Limiting Fuses are used as protective elements for feeder circuits, capacitors, transformers, and other equipment, ensuring safe and fast operation.

DRIWISA® fuses are designed for installation in air-insulated substations or in SF₆ switchgear panels.

Medium Voltage Current-Limiting Fuses

Load Break Switches

DRIWISA® Air-Insulated Disconnect Switches are designed for load and no-load operation in three-pole assemblies, enabling the connection and disconnection of lines or cables, the sectionalizing of ring circuits, as well as the connection and disconnection of transformers under load or off-load conditions.