12 / 24 / 48Vdc 750W Battery Charger / Precision Power Supply – NSR Series

12 / 24 / 48Vdc 750W Battery Charger / Precision Power Supply - NSR Series
12 / 24 / 48Vdc 750W Battery Charger / Precision Power Supply - NSR Series - Image 2
12 / 24 / 48Vdc 750W Battery Charger / Precision Power Supply - NSR Series - Image 3
12 / 24 / 48Vdc 750W Battery Charger / Precision Power Supply - NSR Series - Image 4
12 / 24 / 48Vdc 750W Battery Charger / Precision Power Supply - NSR Series - Image 5
12 / 24 / 48Vdc 750W Battery Charger / Precision Power Supply - NSR Series - Image 6

12 / 24 / 48Vdc 750W Battery Charger / Precision Power Supply – NSR Series

  • Dual-function design: precision DC power supply and intelligent battery charger
  • Available with 12Vdc, 24Vdc, or 48Vdc nominal output
  • Programmable charging with temperature compensation for extended battery life
  • Deep discharge protection, LVD, and electronic circuit breaker (ECB)
  • Standard RS-485 MODBUS RTU; optional Ethernet/SNMP for remote monitoring
  • M8 terminals standard; Phoenix connectors available on 24Vdc / 48Vdc models
More Information...
SKU: NSR750F
Brand: Helios Power Solutions
NSR Series units are assembled to order, to meet your specifications. Please allow 1-2 weeks for assembly and dispatch.

From: AUD $1,450.00(From: AUD $1,595.00 inc GST)

Note: Australian GST only applies to orders delivered within Australia. International orders are exclusive of GST. 

Volume discounts are automatically applied when added to the cart.
QuantityDiscountPer Unit Price
1-4 0% AUD $1,450.00
5-9 5% AUD $1,377.50
10+ 10% AUD $1,305.00
Volume discounts are automatically applied when added to the cart.
QuantityDiscountPer Unit Price
1-4 0% AUD $1,750.00
5-9 5% AUD $1,662.50
10+ 10% AUD $1,575.00
Volume discounts are automatically applied when added to the cart.
QuantityDiscountPer Unit Price
1-4 0% AUD $1,450.00
5-9 5% AUD $1,377.50
10+ 10% AUD $1,305.00
Volume discounts are automatically applied when added to the cart.
QuantityDiscountPer Unit Price
1-4 0% AUD $1,750.00
5-9 5% AUD $1,662.50
10+ 10% AUD $1,575.00
Volume discounts are automatically applied when added to the cart.
QuantityDiscountPer Unit Price
1-4 0% AUD $1,450.00
5-9 5% AUD $1,377.50
10+ 10% AUD $1,305.00
Volume discounts are automatically applied when added to the cart.
QuantityDiscountPer Unit Price
1-4 0% AUD $1,750.00
5-9 5% AUD $1,662.50
10+ 10% AUD $1,575.00
Volume discounts are automatically applied when added to the cart.
QuantityDiscountPer Unit Price
1-4 0% AUD $1,450.00
5-9 5% AUD $1,377.50
10+ 10% AUD $1,305.00
Volume discounts are automatically applied when added to the cart.
QuantityDiscountPer Unit Price
1-4 0% AUD $1,750.00
5-9 5% AUD $1,662.50
10+ 10% AUD $1,575.00
Volume discounts are automatically applied when added to the cart.
QuantityDiscountPer Unit Price
1-4 0% AUD $1,450.00
5-9 5% AUD $1,377.50
10+ 10% AUD $1,305.00
Volume discounts are automatically applied when added to the cart.
QuantityDiscountPer Unit Price
1-4 0% AUD $1,750.00
5-9 5% AUD $1,662.50
10+ 10% AUD $1,575.00

Description

NSR750F – 750W Battery Charger / Precision DC Power Supply (12, 24, or 48Vdc)

The Helios NSR750F is a high-performance 750W battery charger and precision DC power supply available in 12Vdc, 24Vdc, or 48Vdc models. Designed for fixed industrial and infrastructure environments, it provides accurate, programmable DC output alongside advanced charging functionality, making it ideal for telecommunications, laboratory systems, industrial process control, rail signalling, and SCADA networks.

As part of the next-generation NSR Series, the NSR750F combines rugged design with precision regulation and intelligent battery management. Features include programmable charging algorithms, low-voltage disconnect (LVD), electronic circuit breaker (ECB) protection, and deep discharge protection—ensuring optimal battery performance and reliable system operation.

The NSR750F supports multiple battery chemistries, including sealed lead-acid (SLA), AGM, Gel, and Lithium-ion, while also functioning as a stable precision DC supply for sensitive equipment. Its 90–264Vac input range, high efficiency (up to 90%), and IP20-rated enclosure make it suitable for demanding installation conditions.

All models include RS-485 MODBUS RTU for monitoring and control, with optional Ethernet/SNMP providing web-based configuration, data logging, and remote diagnostics. Local LEDs and programmable alarm relays ensure clear system status feedback, while open communication standards enable easy integration with SCADA, PLC, and remote telemetry systems.

The NSR750F is offered with M8 stud terminals as standard, with Phoenix connectors also available for 24Vdc and 48Vdc models. Its versatile design makes it one of the most flexible and dependable DC charger/power supply solutions available for industrial applications.

The NSR Series is engineered and built in Australia, ensuring reliable performance in mission-critical applications worldwide.

Features and Benefits

  • Wide input range (90–264Vac) for global use
  • Up to 90% efficiency for reduced heat and operating cost
  • Functions as both a battery charger and precision DC power supply
  • Programmable charging with temperature compensation
  • Deep discharge protection, battery integrity checks, and LVD
  • M8 terminals on all models; Phoenix connectors available on 24Vdc / 48Vdc models
  • Standard RS-485 MODBUS RTU; optional Ethernet/SNMP with web server and data logging
  • LED indicators, alarm relays, and fault signalling for integration

Key Applications

  • Telecommunications and networking systems
  • Laboratory and precision industrial equipment
  • SCADA, automation, and process control
  • Rail signalling and transport infrastructure
  • Utility substations and energy storage systems

Safety Features

  • Input fuse protection, varistor, and surge suppression
  • Electronic circuit breaker (ECB) for battery circuit protection
  • Overcurrent, short circuit, and overvoltage protection
  • Ingress protection: IP20 chassis
  • Isolation ratings (I/P–O/P, I/P–FG, O/P–FG) meet industrial safety standards

Additional information

Weight4 kg
Dimensions304 × 225 × 70 mm
Output Power (Range)

Input Voltage

,

Output Voltage (Nominal)

, ,

Output Terminals

M8 Studs, Phoenix Terminals

Communications

,

Specifications

Specification Summary – NSR750F

ParameterSpecification
Power Rating750W
Nominal Output Voltages12Vdc, 24Vdc, or 48Vdc (configurable by model)
Output Current12Vdc: ~54A
24Vdc: ~27A
48Vdc: ~13.5A
Input Voltage Range90–264Vac
EfficiencyUp to 90%
Operating ModesBattery charger mode / Precision DC power supply mode
Battery CompatibilitySLA, AGM, Gel, Lithium-ion
Protection FeaturesECB, LVD, deep discharge, surge suppression, overcurrent, short circuit, overvoltage
Operating Temperature–10°C to +50°C
CoolingDual-fan cooling
CommunicationsRS-485 MODBUS RTU standard; optional Ethernet/SNMP
Indicators & AlarmsLEDs, alarm relays, fault signalling
TerminalsM8 studs (all models)
Phoenix connectors (24Vdc / 48Vdc models only)
Ingress ProtectionIP20
IsolationI/P–O/P: 3kVac
I/P–FG: 2kVac
O/P–FG: 500Vac
Dimensions (L × W × H)277 × 156 × 69 mm
Weight2.5 kg

This specification summary may contain errors. Please refer to the product datasheet for full specifications.

Range Summary

NSR750F Series Range Summary

SKUNominal VoltageOutput CurrentPower RatingTerminalsCommunications
NSR750F12S12Vdc~54A750WM8 studsRS-485 MODBUS RTU
NSR750F12SC12Vdc~54A750WM8 studsRS-485 MODBUS RTU + Ethernet/SNMP
NSR750F24S24Vdc~27A750WM8 studsRS-485 MODBUS RTU
NSR750F24SC24Vdc~27A750WM8 studsRS-485 MODBUS RTU + Ethernet/SNMP
NSR750F24T24Vdc~27A750WPhoenix connectorsRS-485 MODBUS RTU
NSR750F24TC24Vdc~27A750WPhoenix connectorsRS-485 MODBUS RTU + Ethernet/SNMP
NSR750F48S48Vdc~13.5A750WM8 studsRS-485 MODBUS RTU
NSR750F48SC48Vdc~13.5A750WM8 studsRS-485 MODBUS RTU + Ethernet/SNMP
NSR750F48T48Vdc~13.5A750WPhoenix connectorsRS-485 MODBUS RTU
NSR750F48TC48Vdc~13.5A750WPhoenix connectorsRS-485 MODBUS RTU + Ethernet/SNMP

This summary table may contain errors. Please refer to the product datasheet for full specifications.

Available stock shown is updated live from our warehouse, with stock ready to dispatch. In the unlikely event something has gone wrong, our team will get in touch.

Australian GST applies only to Australian customers. If you’re shipping outside of Australia, GST will automatically be removed at checkout.

Note: other taxes and duties may apply on import to other countries.

Orders for in-stock items are shipped by the next business day, often earlier. We use TNT for orders within Australia, and DHL for international shipping. Delivery times will vary based on destination.

Yes! All shipments (within Australia and international) are tracked. Tracking information will be emailed to you. If you don’t receive the email, please contact our team.

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Helios Power Solutions

Welcome to our Australian online store, with select products ready to ship worldwide. 

If you’re looking for our full range of distributed products, as well as custom solutions, please head over to the Helios Power Solutions Main Site.

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