WESTINGHOUSE Alpha Plus Series Low Voltage Distribution System

​Product Overview and Core Configuration

Category specific specifications

Brand and Series: Westinghouse Alpha Plus Series

Product Matrix Main Distribution Board (MDB), Distribution Board (SMDB), Terminal Distribution Board (Final DB), Row Distribution Board (RT Series)

Phase and current range: Three phase: 800 A-6400A（MDB）、250A（Ci）、400A（Gi）、630A（Fi）、800-1250A（Ki）、125-250A（Bi/PQ）；

Single phase: 100A-125A (COJ/Din Rail series)

Protection level standard IP43, MDB model IP54 (compliant with IEC 60529)

Core structure shell: 2.0mm galvanized steel plate (outer cover), 1.0mm steel plate (internal partition);

Busbar: Fully tinned copper busbar, 100% full-size neutral wire;

Surface treatment: RAL 7032 textured powder coating, supports customized colors

Certification and standards comply with IEC 61439-1/2, ASTA/KEMA certification, and have passed tests such as temperature rise, dielectric performance, and short-circuit withstand

Detailed explanation of core product series

（1） Three phase distribution board series

Series rated current output line number, installation method, core characteristics

Ci series 250A 2-16 surface/embedded short-circuit withstand 25kA/3s, 35kA/1s, IP43 protection

Gi series 400A 2-18 surface/embedded fully supported busbars, with a maximum output circuit breaker of 225A

Fi series 630A 4-18 channel surface/embedded no capacity reduction design, IP43 protection

Ki series 800-1250A 6-18 surface mounted short-circuit withstand 50kA/1s, 35kA/3s, 2.0mm steel plate shell

Bi series 125-250A 4-16 channel surface/embedded/double-layer modular combination, supporting MCB/MCCB/RCCB incoming lines

PQ series 125-250A 4-16 surface/embedded/plug-in plug-in outlet, easy to install

（2） Single phase distribution board series

Series rated current output line number, installation method, core characteristics

COJ series (plug-in) 100-125A 4-14 surface/embedded maximum cable capacity 25mm ², IP43 protection

Din Rail series (rail type) 100A 4-14 road surface/embedded support DIN rail installation, suitable for residential scenes

Key Performance and Security Protection

Electrical performance

Short circuit withstand current: 25 kA/3s（Ci/Gi/Fi）、35kA/1s（Ci/Gi/Fi/Ki）、50kA/1s（Ki/800A+MDB）、100kA/1s（6400A MDB）

Bus temperature rise: ≤ 80K (vertical/horizontal installation)

Voltage adaptation: 380/415V, 600V AC Max

safety protection

Physical protection: IP43 (solid object and splash proof), IP54 (MDB, dust and spray proof)

Structural protection: fully isolated live parts, door lock design to prevent misoperation, blank board covering idle outlet ports

Grounding system: internal and external grounding terminals, neutral wire and grounding busbar separation design

Installation and accessory system

Installation method

Surface installation: suitable for scenarios with sufficient space, easy to install

Embedded installation: saves space, adapts to wall embedding

Plug in installation: exclusive to PQ series, easy to quickly replace modules

Core accessories

Functional accessories: metering kit (including ammeter, voltmeter, selector switch), expansion box (top/bottom/side expansion)

Protective accessories: blank board (MCB/MCCB specific), door lock accessories, cable entry cover plate

Connection accessories: M6-M36 bolt (torque 25-20000 kg cm), grounding terminal (M6/M10)

Application scenarios

Industrial scenarios: factory production lines, data centers, large equipment power distribution

Business scenario: Main/distribution electricity in shopping malls, office buildings, and hotels

Residential scenario: Terminal power distribution for apartment buildings and villas, compatible with both single-phase and three-phase