About Us

A DEI Power Solutions company building Remote Power Panels in the USA

Critical Power RPP designs and manufactures the Sentinel Series RPP — Remote Power Panels engineered for the white space, telecom rooms, and process floors where downtime is not an option. We are vertically integrated, from one-line drawing to fabricated busbar, under one roof.

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Sentinel Series Remote Power Panels lined up on the manufacturing floor

Who We Are

Power distribution, owned end to end

Critical Power RPP is a U.S. manufacturer of Remote Power Panels and part of DEI Power Solutions. We exist to put metered, branch-circuit power exactly where the load lives — at the rack, the row, and the line — without forcing the rest of the room around it.

Because we control the full path — electrical engineering, sheet metal, bus fabrication, assembly, and test — we answer for the whole panel rather than a stack of parts. That ownership is what lets us commit to a real ship date and stand behind every termination inside the enclosure.

Vertically integrated: one-line to busbar, in-house
Single point of accountability for the finished RPP
Engineering, fabrication, assembly, and test under one roof

Why Critical Power RPP

Built for the people who answer the pager

Every Sentinel Series RPP is engineered to your one-line and built to ship on a date you can plan around.

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Built to spec

Each panel is engineered to your one-line — voltage, main breaker size, branch schedule, and entry — not pulled from a fixed catalog of compromises.

⏱

4-week delivery

A committed four-week lead time, with stock on the floor now. We hold ourselves to the date so your install schedule holds too.

✓

UL listed

Indoor UL Type 1, UL listed, seismic tested, and BABA-compliant — the credentials your AHJ and your spec already require.

★

Premium components

As a Siemens Approved OEM, we build with breakers and components your electricians already know, source, and trust in the field.

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Scalable and configurable

225A, 400A, and 600A frames; free-standing, wall-mounted, or back-to-back; up to 84 single-pole positions. The room dictates the panel.

☎

Engineering support

Talk to the people who design and build the panel. We work from your drawings and answer questions in engineering terms, not sales scripts.

InSight BCMS touchscreen and branch-circuit monitoring on a Sentinel Series RPP

How We Build

Engineered to spec, then proven before it ships

We start at your one-line and work outward: input voltage and main breaker, the branch schedule, cable entry top or bottom, and the InSight BCMS monitoring you need to see the load. Nothing is assumed — the panel is drawn for your room.

Fabrication, bus work, and assembly happen on our own floor, and every panel is tested before it leaves the building. InSight BCMS delivers integrated branch-circuit monitoring with +/-0.5% true-RMS metering and a local touchscreen, so the doors stay closed and the data stays live.

14 kAIC @ 480VAC standard, 65 kAIC optional
Main input breaker up to 600A, 100% rated LSI
Doors-closed monitoring with DIN-rail, scalable BCMS
Optional IR inspection windows and surge protection to 100kA

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Industries We Serve

Where the Sentinel Series goes to work

One panel family, deployed across the most demanding power environments in the country.

DATA CENTERS

White-space distribution

Branch-level metering at the row, with the density and monitoring colocation and hyperscale tenants demand.

TELECOM

Central office & edge

Compact, metered distribution for switch rooms and edge sites where space and uptime are both tight.

HEALTHCARE

Critical care power

Reliable branch power for imaging, labs, and life-safety loads, built to the codes hospitals are held to.

CRYPTO MINING

High-density mining

High-amperage frames and dense branch schedules for the continuous, heat-heavy loads of mining floors.

INDUSTRIAL & COMMERCIAL

Plant & facility loads

Rugged, configurable distribution for process floors, warehouses, and commercial buildings.

UTILITIES

Utility & infrastructure

BABA-compliant, Made-in-USA panels for utility and public infrastructure projects with domestic-content rules.

What We Believe

The standards we build to

A few principles run through every panel we ship.

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Made in the USA

Engineered and manufactured domestically, and BABA-compliant for projects bound by Build America rules.

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Mission-critical first

We design for the worst night, not the demo. Doors-closed monitoring and tested terminations are the baseline.

✓

No surprises

A real ship date, a real spec, and a panel that matches the drawing. We say what we will deliver and deliver it.

☎

Engineer to engineer

You talk to the people who build the panel. No layers, no translation — just direct technical answers.

At a Glance

The Sentinel Series RPP, by the numbers

Product line	Sentinel Series RPP — models SN-225 (225A), SN-400 (400A), SN-600 (600A)
Voltage	415Y/240 VAC standard; 480Y/277 and 208Y/120 optional; 3-phase Wye, 4-wire, 60 Hz
SCCR	14 kAIC @ 480VAC standard; 65 kAIC optional
Main input breaker	Up to 600A, 100% rated LSI
Branch capacity	(84) single-pole positions; breakers 20A–150A; (28) 30A/3-pole and (28) 50A/3-pole optional
Monitoring	InSight BCMS — integrated branch-circuit monitoring, local touchscreen, +/-0.5% true-RMS metering
Configurations	Free-standing, wall-mounted, or back-to-back; top and bottom cable entry
Enclosure	Indoor UL Type 1; 24in x 12in x 90in; seismic tested
Credentials	UL listed, Siemens Approved OEM, Made in the USA, BABA-compliant
Lead time	4-week delivery; in stock now