NSPB LV/MV

NSPB-MV is a non-segregated phase busway system designed for medium-voltage power distribution. It supports power transfer between major electrical equipment and can be configured for project-specific layouts in industrial, infrastructure, and large facility environments.

With a compact, enclosed design, NSPB-MV can help simplify medium-voltage distribution where reliable power transfer, efficient routing, and long-term serviceability are important.

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Empowering Busway Systems with Efficiency and Flexibility

LS Busway NSPB MV delivers advanced solutions for medium-voltage (MV) power distribution. Coming in 2026, LS Busway will offer a low voltage option.

Engineered to ensure optimal performance, reliability, and safety, this system is ideal for diverse industrial and commercial applications. Its modular design and superior safety features make it a trusted choice for mission-critical power networks.

NSPB-MV supports medium-voltage power distribution in industrial, infrastructure, and critical facility applications.

Reliable Medium Voltage and Low Voltage Performance

Supports voltage levels from 3.3kV to 36kV, ensuring compatibility with a wide range of MV applications.
Available in 2026: Suitable for applications below AC 1000V
High short-circuit withstand capacity for secure and stable operations.

Compact and Space-Efficient Design

Optimized dimensions reduce space requirements compared to conventional cable systems.
Flexible installation options suitable for both indoor and outdoor environments.

Enhanced Safety Standards

IP-rated enclosures provide protection against dust, water, and environmental hazards.
Compliant with global standards including IEC 62271 and ANSI/IEEE C37.
Advanced insulation system reduces risks of partial discharge and dielectric breakdown.

Durability and Longevity

Corrosion-resistant materials and robust construction ensure long-term performance.
Operates reliably under high thermal and mechanical stresses.

Ease of Maintenance and Scalability

Modular design facilitates seamless expansion for future power requirements.
Easy access to connections and joints simplifies inspection and repairs

Full Technical Specifications
Available Variants
Certifications & Compliance
Engineering Documents

Full Technical Specifications

Product documentation is available upon request. Contact LS Busway for the latest product literature, technical data, and project-specific documentation.

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Available Variants

Product documentation is available upon request. Contact LS Busway for the latest product literature, technical data, and project-specific documentation.

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Certifications & Compliance

Certification and compliance documentation may vary by product, configuration, and project requirements. Please contact LS Busway to request the applicable documentation for your project.

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Engineering Documents

Product documentation is available upon request. Contact LS Busway for the latest product literature, technical data, and project-specific documentation.

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Specifications

Full Technical Specifications

Reference values per UL 857. For job-specific values, see test reports linked in the Downloads section.

Electrical
Rated Voltage	AC	≤ 600 V (1000 V option per flyer)
Rated Current	Continuous	250 / 315 / 400 / 500 / 630 / 800 A
Rated Frequency	-	50 / 60 Hz
Short-Circuit Withstand	Icw, 1 s	up to 150 kA RMS sym.
Peak Withstand	Ipk	up to 330 kA
Insulation Class	-	B (130 °C) std · F (155 °C) opt.
Dielectric Strength	1 min	2.5 kV (LV) / 3.5 kV (1000 V opt.)
Mechanical
Housing	Material	Extruded aluminum alloy 6063-T5
Conductor	Material	Cu 99.95 % ETP · Al 1350-H19
Cross-section (W × H)	3-ph 4-w	Varies — see Configurations table below
Standard Length	-	3 m / 10 ft (1 m – 3 m available)
Weight	kg / m	8 – 42 kg/m (current dependent)
Bending Radius	min	300 mm (12 in)
Environmental
Operating Temperature	Ambient	-5 °C to +40 °C (derate above 40 °C)
Storage Temperature	-	-25 °C to +70 °C
Relative Humidity	non-cond.	≤ 95 %
Ingress Protection	-	IP54 (NEMA 1) · IP65 (NEMA 3R) opt.
Altitude	-	≤ 2000 m (derate above)
Seismic	IEEE 693	Qualified — High level
Compliance & Standards
UL	-	UL 857 Listed (file E######)
NEC	-	Article 368 compliant
IEC	-	IEC 61439-6 type-tested
NEMA	-	NEMA BU 1.1
RoHS / REACH	-	Compliant

Configurations

Available Variants & Part Numbers

Use this matrix to identify the exact SKU for your specification. Filter by current rating, conductor, and housing.

Name	Current	Conductor	W × H (mm)	Weight (kg/m)	Housing	Datasheet URL
NSPB-0630-CU-N1	630	Cu	180 × 110	9.2	NEMA 1	PDF
NSPB-1000-CU-N1	1000	Cu	190 × 120	13.0	NEMA 1	PDF
NSPB-1600-CU-N1	1600	Cu	210 × 145	18.5	NEMA 1	PDF
NSPB-2500-AL-N1	2500	Al	240 × 175	22.0	NEMA 1	PDF
NSPB-4000-CU-N3R	4000	Cu	290 × 220	34.0	NEMA 3R	PDF
NSPB-6000-CU-N3R	6000	Cu	340 × 260	42.0	NEMA 3R	PDF
NSPB-0630-CU-N1	630	Cu	180 × 110	9.2	NEMA 1	PDF
NSPB-0630-CU-N1	630	Cu	180 × 110	9.2	NEMA 1	PDF
NSPB-0630-CU-N1	630	Cu	180 × 110	9.2	NEMA 1	PDF
NSPB-0630-CU-N1	630	Cu	180 × 110	9.2	NEMA 1	PDF
NSPB-0630-CU-N1	630	Cu	180 × 110	9.2	NEMA 1	PDF
NSPB-0630-CU-N1	630	Cu	180 × 110	9.2	NEMA 1	PDF
NSPB-0630-CU-N1	630	Cu	180 × 110	9.2	NEMA 1	PDF

UL 857

Busways & Fittings

UL 857

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UL 857

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UL 857

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UL 857

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UL 857

Busways & Fittings

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Power Distribution Infrastructure

Medium-Voltage Distribution: NSPB-MV is designed to support power transfer between major electrical systems in demanding project environments.

Built for Large Facilities: Ideal for industrial plants, substations, utility infrastructure, and power generation applications where reliable distribution is critical.

Project-Specific Routing: The system can be configured around equipment layouts, facility constraints, and installation requirements.

PDF

NSPB MV Datasheet

Rev. 3 · Feb 2026 · 2.4 MB

Download

PDF

IEC 61439-6 Type Test Report — NSPB MV

1.2 MB

Download

What is NSPB-MV used for?

NSPB-MV is used for medium-voltage power distribution between major electrical equipment, including transformers, switchgear, generators, substations, and other large electrical systems.

Where is NSPB-MV commonly applied?

NSPB-MV is commonly used in industrial facilities, infrastructure projects, substations, power generation environments, and large-scale electrical distribution systems.

What does non-segregated phase mean?

Non-segregated phase busway means the phase conductors are housed within a common enclosure rather than separated into individual phase compartments. Final product details and configuration should be confirmed through LS Busway documentation and engineering review.

Can NSPB-MV be customized for project layouts?

NSPB-MV systems can be configured based on project layout and equipment connection requirements. Final configuration should be reviewed with LS Busway and the project engineering team.

NSPB LV/MV

Empowering Busway Systems with Efficiency and Flexibility

Product Resources

Full Technical Specifications

Available Variants

Certifications & Compliance

Engineering Documents

Full Technical Specifications

Available Variants & Part Numbers

Certifications & Compliance

UL 857

UL 857

UL 857

UL 857

UL 857

UL 857

UL 857

UL 857

UL 857

UL 857

UL 857

UL 857

Power Distribution Infrastructure

Engineering Documents

NSPB MV Datasheet

IEC 61439-6 Type Test Report — NSPB MV

Technical FAQ

What is NSPB-MV used for?

Where is NSPB-MV commonly applied?

What does non-segregated phase mean?

Can NSPB-MV be customized for project layouts?

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