Mersen Critical Power Panel (CPP) Series Panelboard

Protect Critical Power Systems

Mersen's Critical Power Panel (CPP) series panelboard is designed with crucial applications in mind. Mersen's CCP offers installers quicker specification, easier installation, and customers a lower cost option. This lightweight panelboard, in a smaller footprint, and with in-house sourced components, translates into better design control and improved availability.

Ideally suited for National Electrical Code® (NEC) required and non-required applications such as:

• UPS Systems

• Data Centers

• Medium Voltage eHouses

• Emergency Circuit (required by NEC 700.27)

• Legally Required Standby Systems (required by NEC 701.18)

• Lighting loads or any load up to 30A

• DC applications for utility and railway markets

Features and Options

• Integral Surge Protection (required on critical circuits)

• Feed Through Lugs

• Standard Dual/Sub Feed Lugs on MLO Mains

• Preconfigured options available

• Patented "Z" Bus Bar

Additional Benefits

• Few connections points to minimize electrical/mechanical points of failure

• Robust sleek back plate

• High interrupting rating - up to 200kA with up to a 400A fuse (main or remote)

• Easy selective coordination using Mersen Amp-Trap 2000® fuses or any other Class CC fuses for branch circuit protection

These benefits lead to a panelboard that is easy to apply, install, and maintain while serving the most important electrical loads.

This UL 67 panelboard has multiple options for switched fused mains, up to 400A, featuring Mersen's UL 98 rated Compact Fused Disconnect (CEP) and Amp-Trap 2000 Class CC fuses for branch circuit protection. Fuses can be changed for the application to offer more time delay or faster protection based on the application. The panel, main, and branch circuits can be applied up to 600VAC or 125VDC. These benefits lead to a panelboard that is easy to apply, install, and maintain while serving the users most important electrical loads.

Selective Coordination

Achieving selective coordination typically requires a costly short circuit current study. However, with the Critical Power Panel (CPP), coordination can easily be determined with upstream Mersen fuses. Mersen's new CPP utilizes its Compact Fused Disconnect with Amp-Trap 2000® ATDR or any other Class CC fuses for branch circuit protection. Simply maintain a 2:1 ratio with upstream Amp-Trap 2000 fuses and the system will coordinate.

A system that is selectively coordinated will ensure that any fault condition is localized to the nearest overcurrent protective device. This increases system reliability and decreases downtime. Selective coordination is desired for all systems but is also mandatory per NEC for critical circuits:

• 620.62 - Elevator Circuits

• 700.27 - Emergency Systems

• 701.18 - Legally Required Standby Systems

By localizing a fault to the nearest overcurrent device, selective coordination prevents unnecessary disconnection from other circuits in the system. An electrical system that utilizes Mersen fuses can be selectively coordinated simply by meeting the minimum fuse rating ratios. By adhering to the minimum fuse ratios, engineers and installers can save time and money because no complex coordination study is required.

Power-Flo Technologies is proud to partner with Mersen who has a culture of customer-centric innovation and co-development. Mersen’s Critical Power Panel (CPP) delivers a streamlined, cost-effective solution for protecting and distributing power in mission-critical environments. With its compact design, high interrupting ratings, and simplified selective coordination, the CPP reduces installation complexity while enhancing system reliability and uptime. Backed by flexible configuration options and trusted Mersen fuse technology, it empowers engineers and installers to confidently meet NEC requirements without the need for extensive coordination studies. For applications where performance, safety, and efficiency are non-negotiable, the CPP stands out as a practical and dependable choice.