The N4A range of Programmable AC Power Sources provide breakthrough low distortion performance previously unseen from a “Switched Topology” Source, the implementation of a proprietary “6 legged output stage” effectively creates a very high switching frequency for waveform construction – thus providing lower distortion. The N4A offers the unique ability to generate both high frequency power waveforms up to 1kHz as well as low frequency power waveforms down to 0.01Hz. This feature enables the engineer to simulate low frequency power devices such as wind turbines with very low fundamental frequencies. Up until now, switching topologies have suffered from higher distortion levels than that of the more established Linear approach. The introduction of the N4A power sources signifies a new chapter in low distortion AC Power Source technology.
The N4A AC power source range offers compliance to a range of international EMC standards including IEC61000-3-2:2014, IEC61000-3-3:2013, IEC61000-3-11:2001, IEC61000-3-12:2011, IEC61000-4-11:2004, IEC61000-4-13:2002 + A1:2009, IEC61000:-4-17:1999 + A2:2009, IEC61000-4-28:2000 + A2:2009, IEC61000-4-29:2001 and IEC61000-4-34:2007 + A1:2009.
For further information regarding these standards, please see our EMC Test Systems product page.
Model |
Output Power |
Bandwidth |
Output THD % |
Output Phases |
Maximum Output Current (Continuous) |
Maximum Output Current (3 second inrush) |
| N4A03 | 3kVA | 1kHz Full Signal, 15kHz Small Signal | Better than 0.3% | 1 Phase | 10Arms | 20Arms |
| N4A06 | 6kVA | 1kHz Full Signal, 15kHz Small Signal | Better than 0.3% | 1 Phase | 20Arms | 40Arms |
| N4A18 | 18kVA | 1kHz Full Signal, 15kHz Small Signal | Better than 0.3% | 3 Phase (Optional 1 phase output) | 20Arms/phase | 40Arms/phase |
| N4A30 | 30kVA | 1kHz Full Signal, 15kHz Small Signal | Better than 0.3% | 3 Phase (Optional 1 phase output) | 32Arms/phase | 64Arms/phase |
| N4A67 | 67kVA | 1kHz Full Signal, 15kHz Small Signal | Better than 0.3% | 3 Phase | 75Arms/phase | 100Arms/phase |
Product Images
Features & Benefits
| N4A AC Power Source Product Overview | |
| Very Low Distortion | 0.1% Typical |
| Fully Compliant to IEC61000-3-2, IEC61000-3-3, IEC61000-3-11, IEC61000-3-12, IEC61000-4-11, IEC61000-4-13 (Depending upon model) | Satisfies all IEC requirements |
| Intuitive User Interface | “Quick Keys” and alpha numerical keypad |
| Very wide frequency range covering 6 orders of magnitude (0.01Hz ~ 1kHz) | DC & 0.01Hz to 1kHz |
| Colour Display | Real time monitoring and waveform display |
| 200% Current Overload Capability (N4A67 133%) | 3 Second 200% Overload Capability |
| Power Output up to 67kVA | Contact us for further information |
| Short Circuit Output Protection | Standard safety circuit |
| Custom Waveform Generator, Mathematical Harmonic Computation Capability | Add Harmonics Mathematically |
| Upload waveforms from RAW data | Load waveforms via RS232, LAN or USB |
The N4A AC power sources feature an extremely flexible waveform generator capable of mathematical waveform generation, data point waveform upload and many sequencing functions. Traditionally, switching topologies have struggled to provide total harmonic distortion (THD) figures below 2%. The N4A “6 legged topology” provides less than 0.3% THD and typically 0.1%, the N4A range of AC Power Sources should be considered the best value power generator on the market. Ranging from the N4A06 6kVA model (300Vrms, 20A) to the N4A67 67kVA model (67kVA, 75A /phase) – the N4A will suit a wide range of applications including;
- Aerospace
- Renewable Energy
- Compliant to IEC61000-3-2/12 and IEC61000-3-3/11 Harmonics and Flicker Testing
- Compliant to IEC61000-4-11 Voltage Dips and Interrupts immunity test standard
- IEC61000-4-13 harmonic and inter-harmonic susceptibility test standard
- PWM Inverter Drive Development
- Automotive
- Standby Power
- Battery Development
| Brochures | Documentation |
| N4A_AC_Power_Source_Brochure High res v2.1 PDF, 882kb | D000196_N4A source_User Manual_4.0 PDF, 3Mb |
| EMC_IEC61000_Test_System_Brochure PDF, 3,334kb | Note: User manual and Comms manual provided in combined document |
| Single phase start-up guide PDF, 117kb |