EZ-POWER Plug-in Power Distribution Cabinet丨Power Distribution Equipment Manufacturer

Key Benefits

Hot-plugging without power outage

Branch switches can be inserted or withdrawn while the busbar is energized, without affecting the power supply of other circuits.

Ultra-high distribution density

A single busbar supports up to 72 outgoing circuits, saving 50% of space compared with traditional distribution cabinets.

Extreme fire-resistant safety

The epoxy-resin integral-cast busbar does not short-circuit after 3 hours of flame burning at 750℃.

Multi-brand MCCB compatibility

Compatible with mainstream 1P/2P/3P switches from NATUS Electric, Schneider, Siemens, ABB and other brands.

Product Overview

EZ-POWER Plug-in Power Distribution Cabinet is a new-generation end-end power distribution device independently developed by NATUS Electric for scenarios requiring extremely high power supply continuity.

Compared with traditional fixed distribution cabinets, this power distribution cabinet adopts a plug-in branch switch design, allowing circuits to be added, replaced or maintained while the equipment is energized, without any power outage. The integrated conductor and epoxy-resin cast busbar technology greatly improve current-carrying capacity and fire safety. The high-density design supports up to 72 circuits per cabinet, significantly saving distribution room space. The electric distribution system fully complies with GB/T 7251.2 and IEC 61439-2 international standards and is widely used in 24-hour uninterrupted power supply scenarios such as semiconductor, LCD display, hospitals and rail transit.

Product Structure

1. Double-layer door panel system

The outer door accommodates metering instruments / monitoring units, while the inner door provides safety protection to prevent accidental contact with live parts.

2. Main frame

Aluminum-zinc coated steel plate with a multi-layer bending process, high strength and corrosion resistance; the surface is treated with electrostatic powder coating.

3. Busbar system

Epoxy-resin composite material integrally cast, with integrated toothed insulation shielding and IP21 protection class.

4. Branch switch unit

Plug-in Molded Case Circuit Breaker (MCCB) with safety hanging design; independent sockets for each phase prevent wrong insertion.

5. All-round protection system

All primary and secondary live parts are isolated by polycarbonate (PC) protective covers, and the cabinet enclosure protection class is IP41.

6. Safety design

The busbar meets IK10 impact level; unused sockets can be sealed with protective devices; the branch switch has safety hanging protection before insertion to prevent falling.

Plug-in switch, easy to expand, no power shutdown required. Easy load change, efficient maintenance. Small size/space saving. Flexibility to choose from a variety of brands of MCCBs to meet the needs of users. Simple application, safety and easy operation, effectively reducing future operating costs.

The MCCB can be used with a variety of brands and 1P, 2P and 3P MCCB switches. MCCB can be inserted and withdrawn with power, quick and easy to increase or decrease the load. The conductive clamp contact surface features silver-plated treatment, with the external spring plate securely crimped flat to withstand a 54kg insertion force test.

Technical Advantages

01.

All-round safety protection system

IP21 busbar protection, full PC board isolation, IK10 impact level and safety hanging design structurally prevent electric shock, misoperation and mechanical damage risks.

02.

Fast installation and maintenance technology

Only a one-pronged screwdriver is required to install and remove branch switches. The standardized modular design improves on-site construction efficiency by 60%, making later maintenance simple and convenient.

03.

Flexible expansion design

Spare sockets can be reserved, so all loads do not need to be determined at the early stage of the project. Circuits can be added at any time according to actual needs, greatly shortening the project cycle and adapting to future business development.

Technical Specifications

General Technical Specifications

Basic Parameters
Standard	GB/T 7251.2; IEC 61439-2
Ambient temperature	-15℃ / +40℃; average 35℃
Altitude	<2000 m
Type	TC250 / TC400 / TC630 / TC800 / TC1000 / TC1250 / TC1600
Rated voltage	208 / 220 / 380 / 440 / 480 / 690 V
Rated current	250 / 400 / 600 / 800 / 1000 / 1250 / 1600 A
Frequency	50/60 Hz
Breaking capacity	65 / 65 / 65 / 65 / 80 / 80 / 100 kA
System type	Molded case switch incoming line / frame circuit breaker incoming line / copper bar incoming line

Busbar

Basic Parameters
Type	B400, B630, B800, B1250, B1600, B3200 (non-standard customization)
Conductor	Copper with tin plate
Insulation material	Epoxy cast resin
Insulation level	F class, 155℃
Number of sockets	36P / 54P / 72P
Fire rating	IEC 60331 750℃ 3 hr / IEC 60332 / UL94 V0
Protection level	Main busbar IP21; cabinet shell IP41
Colour	Customized according to customer requirements; default color is RAL7043

Shunt Switch

Basic Parameters
Insertion type	Plug-in type
Number of poles	1P/2P/3P
Maximum rated capacity	800 A
MCCB brand	According to design requirements or customer needs, NATUS Electric, Schneider, Siemens and ABB are recommended.
Frame type	F250 / F630 / F1250
Primary side protection class	IP21

Cabinet

Basic Parameters
Cabinet type	Wall mount / floor type
Paint baking method	Electrostatic spray
Paint thickness	50 μm for indoor use / 70 μm for outdoor use
Shell protection	IP41

1. Semiconductor and electronics

Designed for 24-hour uninterrupted production where any power outage may cause wafer scrapping; hot-plugging enables maintenance without power outage and ensures continuous production.

2. LCD display industry

Panel production lines require extremely high power supply continuity; high-density distribution meets the power supply needs of large numbers of process equipment.

3. Medical industry

Critical areas such as ICUs and operating rooms cannot lose power; the high-safety protection design ensures secure power supply for medical equipment.

4. Airports and rail transit

Public transportation hubs are densely populated and power interruption would cause major impact; high reliability ensures stable system operation.

5. Data centers

High-density distribution meets server cabinet power supply needs; hot-plugging enables online maintenance without affecting IT equipment operation.

6. High-end business centers

Commercial operations cannot be interrupted; maintenance without power outage avoids affecting normal tenant operation.

Product FAQ

Can branch switches really be inserted and withdrawn while energized? Is it safe?

Yes. EZ-POWER power distribution cabinet uses independent phase sockets, and the energized busbar parts are protected to IP21. There is no electric shock risk during plug-in operation. A safety hanging device also prevents the switch from falling before insertion or after withdrawal, making operation safe.

How many outgoing circuits can one electrical distribution cabinet support at most?

A single busbar supports up to 72 outgoing circuits. 36P, 54P or 72P module specifications can be selected according to actual needs, and the width of 1P is 35mm.

Which MCCB brands are supported?

Standard compatibility covers mainstream 1P, 2P and 3P MCCBs from NATUS Electric, Schneider, Siemens and ABB. Other brands can also be customized according to customer requirements.

Can the busbar really achieve 3-hour fire resistance?

Yes. The busbar is integrally cast from epoxy resin composite material and has passed IEC 60331 testing. It does not short-circuit after 3 hours of flame burning at 750℃, meeting the highest fire protection requirements.

Are special tools required for installation and replacement?

No. Only a common flat-head screwdriver is required to install and remove branch switches. No professional training is required, and operation is simple and convenient.

Is a customized 3200A high-current solution available for the power distribution cabinet?

Yes. Standard power distribution cabinet products cover 250A-1600A, and 3200A high-current non-standard customization is supported for special projects.

What power distribution cabinet installation methods are available?

Wall-mounted and floor-standing installation methods are available. Small-current specifications (≤400A) can be wall-mounted, while large-current specifications are recommended to use floor-standing installation.

Natus Electric Group Co., Ltd.

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