Powering Life for Modern Humanity

APT Low & Medium Voltage Paralleling Switchgear &
Paralleling Control Systems

• Remote Switchgear SCADA System
• Automatic Paralleling of Generators, Utilities, & Renewable Power Sources
• Manual/Automatic Transfer from Normal to Back-up & Emergency Sources
• Utility Peak Demand Shaving & Microgrid Smart Power Systems
• Utility Intertie & Bypass/Isolation



Home » Power System Products » Paralleling Switchgear & Paralleling Controls

Paralleling Switchgear


APT Medium Voltage Paralleling Switchgear

APT Medium Voltage (5kV – 15kV) metal enclosed switchgear can be built for indoor and outdoor generator paralleling applications. Our Medium Voltage Paralleling Switchgear is available in both full and compact sizes, and features vacuum circuit breakers. It offers the ultimate in flexibility with options available to meet virtually any power system needs.


APT Low Voltage Paralleling Switchgear​

APT Low Voltage (208V, 480, 600V+) metal enclosed switchgear can be built for indoor and outdoor generator paralleling applications. We also offer a Paralleling Generator Distribution Switchboard (GenProtect-P). Besides paralleling switchgear, we have a variety of low voltage switchboards to meet any of your power needs. APT also offers panelboards and tap boxes.

Paralleling switchgear includes the control, protection and monitoring equipment needed for paralleling of various power generation sources.

Paralleling Control Systems


ACM Generator Paralleling

APT Advanced Paralleling Controls can be used in Prime Power or Emergency Power applications. It requires operating multiple generators in parallel, or at the same time. Generator paralleling switchgear control allows for easier maintenance and better operator experience. It has greater flexibility with operation modes that can be achieved and future expansion capabilities.


Utility Paralleling
(Base Load)

APT Utility Paralleling Switchgear offers seamless transfer of electrical loads from the utility to the generators and vice versa with automatic standby operation. Our Utility Paralleling Switchgear is available in either low or medium voltage. Some of its features include complete automatic operation and an integrated microprocessor control.


Low Cost Two Generator Paralleling Control Module

The APT A2 Basic Generator Paralleling Control Module is a low cost automatic paralleling switchgear. Large gensets come with long lead times. Buying two smaller gensets and using the A2 will provide a cost effective, quick delivery, and compact automatic paralleling solution.


CAT Power Module Paralleling Control Module

APT's CAT Power Module Paralleling Control is compact and has many features. It is specifically designed to become a part of a containerized generator set system. APT CAT Power Module Paralleling Control is also built to minimize air flow restriction in the container. It is available in low or medium voltage. This paralleling switchgear control module also features an integrated engine battery charger.

Paralleling Switchgear & Control System Applications

Water & Wastewater Treatment Plants

Data Centers

Healthcare & VA Medical Centers



Electric Utility & Manufacturing