Unique Modular & Flexible Design:
Designed for horizontal scalability and easy expansion, optimizing the system footprint while minimizing maintenance times (Short mean time to repair)
Frequency Converter
NSP SERIES
Shore Power Converters
Marine Type Shore Power Converters
- Harsh Environment
- Bi-Directional Energy Flow
- Vessel Frequency Changer
- 100kVA per Module
- 50/60/400Hz
ENCLOVE Energy's NSP Series Shore Power Converter (10kVA–1000kVA) delivers continuous, laboratory-grade AC power for demanding marine, transport, and heavy-industrial environments. Engineered with a scalable modular architecture and bi-directional four-quadrant technology, it provides flexible power distribution and minimized maintenance times. Built with robust IP54 ingress protection and complete galvanic isolation, the NSP Series ensures maximum reliability and zero-impact source protection against harsh dockside and offshore conditions.
- Power Range
- 10 to 1000kVA
- Efficiency
- 94%
- Output Frequency Accuracy
- ±0,01%
- Input Current Harmonic
- <3% THDi
Product Overview
The ENCLOVE NSP Series Shore Power Converter is an advanced, highly flexible power conversion system engineered to withstand the world's most challenging operational environments. Spanning a broad capacity range from 10kVA up to 1000kVA, this series is tailored specifically for dockside shore-to-ship connection, commercial marinas, shipyards, railway transit infrastructure, and mission-critical industrial plants. Constructed with standard IP54 ingress protection (IP55 optional), conformal-coated printed circuit boards, and integrated marine filtration systems, the cabinet provides total protection against high humidity, dust, and aggressive maritime atmospheres.
Inside its rugged enclosure, the NSP Series employs advanced IGBT rectifier and inverter technology to deliver clean, stabilized AC power with an ultra-high input power factor (>0.99%) and minimal current distortion (THDi<3%). Its bi-directional four-quadrant operation enables seamless energy distribution, while built-in galvanic isolation shields both source and load from voltage fluctuations and marine galvanic corrosion. Controlled via a 7-inch multilingual color touch display with real-time event logging, the NSP Series combines horizontal modular scalability with optional marine-grade certifications (BV, DNV GL, ABS, RINA) to guarantee uncompromised operational continuity.
Technical Highlights
- Modular capacity from 10kVA to 1000kVA with horizontal expansion for easy capacity upgrades and rapid servicing.
- Four-quadrant energy flow capability allows for flexible power distribution and energy management.
- Features an IP54-rated enclosure (IP55 optional), conformal coated PCBs, and a marine filtration system.
- Built with comprehensive galvanic isolation, reverse polarization protection, and galvanic corrosion prevention.
- Advanced IGBT topology ensures an input power factor >0.99 and input current harmonics THDi< 3%.
- Supports precision output frequencies of 50Hz, 60Hz, and 400Hz ($\pm0.01\%$) for specialized marine and aviation loads.
- Integrated 7-inch color TFT touchscreen powered by DSP control with real-time logging for up to 2,000 events.
- Supports dual input configurations and optional seamless generator transfer without dropping critical loads.
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MARINAS & SHIPYARDS
WITH ITS COMPACT DESIGN, IT IS SUITABLE FOR BOTH MARINAS AND SHIPYARDS
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MODULAR DESIGN
RELIABLE, SCALABLE AND EASY TO MAINTAIN THANKS TO ITS MODULAR STRUCTURE
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BI-DIRECTIONAL TECHNOLOGY
BI-DIRECTIONAL OPERATION WITH FOUR QUADRANT ENERGY FLOW CAPABILITY
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USER-FRIENDLY HMI
ALL PARAMETERS CAN BE MONITORED VIA A USER-FRIENDLY TOUCH PANEL
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HIGH INGRESS PROTECTION
IP54 INGRESS PROTECTION ALLOWS INSTALLATION ON VESSELS AND SHORE
Key features
Dual Input & Seamless Transfer (Optional):
Supports dual input setups and optional seamless generator transfer to protect critical loads during source transitions without downtime.
Ultimate Environmental Protection:
Employs conformal coated printed circuit boards and a built-in marine filtration system to withstand harsh, humid, or dusty industrial environments.
Comprehensive Electrical Shielding:
Equipped with robust galvanic isolation between input and output, galvanic corrosion protection, and reverse polarization protection.
Zero Impact Source Technology:
Features an advanced IGBT rectifier and inverter design that ensures an ultra-high input power factor (>0.99) and low input current distortion (THD <3%).
Advanced UI & Control:
Operated via a 7" multilingual touch panel interface supported by state-of-the-art DSP control and a real-time logging of up to 2000 events with detailed parameters.
Technical specifications
The table below is reproduced from the NSP Series datasheet and covers the single configurable model range, NSP-3PXXXNI-3PXXXNI-XXXXK-XXX-XXX, across the full 10kVA - 1000kVA power range.
| POWER RANGE | 10kVA - 1000kVA |
|---|---|
| MODEL NAME | NSP-3PXXXNI-3PXXXNI-XXXXK-XXX-XXX |
| INPUT | |
| Voltage | 170 – 520V 3P + PE (different input voltages with input transformer) |
| Maximum Supply Voltage | ±10% |
| Nominal Input Frequency | 50/60Hz |
| Frequency Tolerance | 30 - 70Hz |
| Input Connection | 3P or 3P+N (with or without neutral) (Neutral Optional) |
| Current Harmonic | <3% THDi (at nominal load) |
| Power Factor | > 0.99 |
| OUTPUT | |
| Power | 10 kVA to 1000kVA |
| Power Factor | 0.9 (1.0 Optional) |
| Voltage | 208/380/400/415/440/480/690 VAC 3P+PE (N Optional) |
| Voltage Tolerance | Static ±1%, Dynamic ±3% |
| Frequency | 50Hz / 60Hz/400Hz ±0,01% |
| Voltage Harmonic | Linear Load <1% / Non-Linear Load <3% |
| Overload Capacity | 10 min. @ <125% Load 1 min. @ <150% Load |
| Short Circuit Rating | 2 sec. @ 200% Load |
| Efficiency | 94% |
| GENERAL | |
| Cabinet Type | Standalone |
| Cabinet Color | RAL7032, RAL7035 (Other colours optional) |
| Ingress Protection | IP54 (IP55 - Optional) |
| User Panel | 7-inch touch panel with a color TFT display |
| Communication Ports | RS232, RS485, MOD-Bus, J-Bus, CAN-Bus, SNMP(Optional), Dry Contact (Optional) |
| Operating Temperature | 0 – 50°C |
| Storage Temperature | -20 – 70°C |
| Cooling Type | Forced-air cooling with fan speed adjusted according to the load Optional (Optional liquid cooling: 6 L/min flow rate per 100 kW. Non-corrosive coolant) |
| Temperature De-Rating | 2% power loss per 1°C above 40°C, up to 50°C. |
| Operating Altitude | <1000m, Correction Factor 1. / <2000m, Correction Factor >0.92, / <3000m; Correction Factor >0.84 |
| Humidity | <95% without condensation |
| Acoustic Noise | <65 dBA |
| Standards (General) | ISO 9001, ISO 14001, ISO 45001, EN62040-2, EN62040-1, EN60950, EN62040-3 |
| Standards (Marine) | Marine certifications available upon request (BV, DNV GL, ABS, RINA, CCS, LR) (Optional) |
| Dimensions | Dimensions: Available upon request |
| Others | Cabinet Heater, Cabinet Lighting, Service Plug |
The company reserves the right to change the model, appearance, and technical specifications of the products without prior notice.
Frequently asked questions
Answers taken from the NSP SERIES datasheet.
What is the power range of the ENCLOVE NSP Series shore power converter?
The NSP Series covers 10kVA - 1000kVA, ordered under the model name NSP-3PXXXNI-3PXXXNI-XXXXK-XXX-XXX. Output power is stated as 10 kVA to 1000kVA at an output power factor of 0.9 (1.0 optional).
Can the NSP Series convert 50Hz shore supply to 60Hz or 400Hz for a vessel?
Output frequency is 50Hz / 60Hz/400Hz ±0,01%. The input side accepts a nominal 50/60Hz supply with a frequency tolerance of 30 - 70Hz.
What input and output voltages does the NSP shore power converter support?
Input voltage is 170 – 520V 3P + PE, with different input voltages available using an input transformer, and an input connection of 3P or 3P+N (with or without neutral). Output voltage options are 208/380/400/415/440/480/690 VAC 3P+PE (N Optional), held to Static ±1%, Dynamic ±3%.
What are the operating temperature, humidity and altitude limits of the NSP Series?
Operating temperature is 0 – 50°C and storage temperature -20 – 70°C, with humidity up to <95% without condensation. Temperature de-rating is 2% power loss per 1°C above 40°C, up to 50°C, and altitude correction factors are given as <1000m, Correction Factor 1. / <2000m, Correction Factor >0.92, / <3000m; Correction Factor >0.84.
Which communication ports and monitoring interface does the NSP Series have?
Communication ports are RS232, RS485, MOD-Bus, J-Bus, CAN-Bus, with SNMP(Optional) and Dry Contact (Optional). Local operation is via a 7-inch touch panel with a color TFT display.
Which standards and marine certifications does the NSP shore power converter meet?
General standards listed are ISO 9001, ISO 14001, ISO 45001, EN62040-2, EN62040-1, EN60950, EN62040-3. Marine certifications are available upon request (BV, DNV GL, ABS, RINA, CCS, LR) as an option.
Documentation & downloads
Download the latest documentation for the NSP Series. Files are provided in their current revision; contact us if you need a previous version or a localised translation.
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Download
Product Datasheet
Full technical specifications, and product features including all the options.
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Request
Installation & User's Manual
Step-by-step installation instructions, menu details, and operating procedures.
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Request
PC & Monitoring Software
Computer Program or Programs helps you to monitor or set the unit.
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Request
Additional Documents
Additional documentation that might be involved with this series.
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