WESTINGHOUSE Alpha Plus Series Low Voltage Distribution System

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

Overview of Product Core Technical Parameters

（1） Basic specifications and certification

Category specific specifications

Product series Alpha Plus (including sub series such as MDB, SMDB, Final DB, Row Type, etc.)

Rated current main distribution board (MDB): 800A-6400A; Distribution board (Ci/Ge/Fi): 250A-630A; Terminal distribution board (Bi/PQ): 125A-250A; Single phase distribution board: 100A-125A

Protection level standard level: IP43 (preventing solid foreign objects and splashing water); Enhanced level (MDB): IP54 (dustproof+waterproof); Line type distribution board: IP41

Certification standards IEC 61439-1/2/3, ASTA, KEMA, PSB (Singapore), compliant with NEMA standards

Frequency adaptation 50/60Hz universal

Voltage adaptation 380/415V, maximum 600V AC

（2） Structure and material parameters

Category specific specifications

Shell material outer cover/door panel: 2.0mm thick electro galvanized steel plate; Internal partition: 1.0mm thick steel plate; Line type distribution board: 1.2mm steel plate

The busbar configuration is made of fully tinned copper busbar, with 100% full-size neutral wire and no black copper material; Optimization of busbar support spacing to ensure heat dissipation and stability

Surface treatment standard: RAL 7032 textured powder coating (light beige); Support customized colors

Form 2/3/4 structure for separation, up to Form 4-Type 7, with fully isolated live parts

Installation methods include surface installation, embedded installation, and plug-in installation, suitable for different space requirements

（3） Key electrical performance

Category specific specifications

Short circuit withstand current 25kA/3s, 35kA/1s, 50kA/1s, 80kA/1s, 100kA/1s (classified by model)

The temperature rise of the busbar is ≤ 80K (applicable for vertical/horizontal installation, both forward and reverse feeding)

Outgoing configuration 2-18 channels, supporting modular expansion, idle outgoing ports can be protected by blank boards

Maximum cable cross-section for cable adaptation: MCCB circuit up to 300mm ², MCB circuit up to 95mm ²; Neutral wire and grounding terminal specifications: M6/M10

Measurement function supports analog/digital measurement kit, including ammeter, voltmeter, selector switch, and 3 sets of indicator lights (maximum installation size of 96 × 96mm)

Product System and Core Series Detailed Explanation

（1） Core series of three-phase distribution board

1. Main Distribution Board (MDB) Series

Core positioning: Industrial/commercial scene main distribution center, rated current 800A-6400A, short-circuit withstand current 50kA-100kA/1s.

Structural design: 300mm high busbar room (top/bottom optional), independent incoming line area (ACB, instrument, incoming cable compartment), minimum 200mm high outgoing line area, expanded by a multiple of 25mm; Equipped with M12 lifting rings for easy transportation and installation.

Key configuration: IP54 protection, fully tinned copper busbar, 2.0mm galvanized steel plate shell, semi hidden hinge+door lock design, door panel with sealing gasket.

2. Distribution board (Ci/Ge/Fi series)

Series Rated Current Core Features Outgoing Specification

Ci series 250A short-circuit withstand 35kA/1s, 25kA/3s, IP43 protection, 1.5mm steel plate shell 2-16 circuits, branch MCCB maximum 160A

Gi series 400A fully supported busbar without capacity reduction, external/internal grounding terminal, detachable incoming cover plate 2-18 channels, branch MCCB maximum 225A

Fi series 630A ASTA certification, fully shielded with live parts, ample wiring space 4-18 channels, branch MCCB maximum 225A

3. Terminal distribution board (Bi/PQ series)

Bi series: rated current 125A-250A, supports surface/embedded/double-layer installation, with optional MCB/RCCB/MCCB (maximum 250A) incoming lines and DIN rail type outgoing lines, configured with 2-16 channels.

PQ series: Plug in design, easy installation, rated current 125A-250A, supports surface/embedded installation, with plug-in module output, 4-16 channel configuration, suitable for fast expansion scenarios.

4. Ki series (800-1250A)

Specially designed for medium to large commercial/industrial scenarios, with a short-circuit withstand of 50kA/1s, 35kA/3s, IP54 protection, 2.0mm steel plate floor standing shell, fully insulated tin plated copper busbar, 6-18 outgoing lines, and branch circuit breakers with a maximum of 800A.