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Unit Substations

Square D Medium Voltage Unit Substations
The unit substation is a vital piece of equipment to be considered when planning electrical system demands. Square D unit substations are single products that are designed, coordinated, assembled, tested and brought together at the jobsite to form one complete electrical distribution assembly.

The benefits of choosing a Square D unit substation are numerous:

• Total coordination to ensure ease of installation at your jobsite.
• Single point of contact and assistance.
• Complete substation composite layout drawings.
• One line drawings showing electrical flow through substation.
• Custom design and coordination of special handling or shipment schedules.
• Interconnection hardware and installation instructions.
• Square D warranty coverage for the entire unit substation.

Various combinations of incoming sections, transformer sections, and distribution sections make possible a variety of designs.

Click on the images below for more information.

Primary
HVL/cc Metal Enclosed Switchgear 5-17.5 kV	High Voltage Load Interrupter Switchgear 5-38 kv	VISI/VAC® Medium Voltage Circuit Interrupter 5-15 kv	Metal-Clad Switchgear 5-15 kv
	Medium Voltage Busway 600 volt-15 kv	Air-Terminal-Chamber/ Air-Terminal-Box
Transformer
	POWER-CAST® Transformer 2.5-34.5 kv	UNI-CAST® Transformer 2.5-34.5 kv
	POWER-DRY™ Transformer 600 volts-26.4 kv	Liquid-Filled Transformer 2.5-34.5 kv
Secondary
	High Voltage Load Interrupter Switchgear 5-15 kv	VISI/VAC Medium Voltage Circuit Interrupter 5-15 kv	Metal-Clad Switchgear 5-15 kv
	Low Voltage Busway 600 volts and below	POWER-ZONE 4 Switchgear 600 volts and below
	MOTORPACT™ Medium Voltage Controllers	Low Voltage Model 6 Motor Control Center 600 volts and below	QED POWER-STYLE® Switchboard 600 volts and below
		Air-Terminal-Chamber/ Air-Terminal-Box

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