To cover a wide range of UPS and inverter power levels, the 4600 Series AC electronic loads can be paralleled up to 62 instruments.
Programmable AC Electronic Loads - NH Research
The 4600 Series Programmable AC Electronic Loads are useful for testing the following applications & products: AC Sources, Circuit Breakers, Connectors, Fuses, Inverters, Switches, Uninterruptible Power Supplies (UPS).

Features Include
- 3 kW / 30 A modules expandable to 180 kW
- Power and crest-factor programmability
- 12 built-in, high-accuracy measurements
- Voltage 50 to 350 V
- Current 30 A per 3 kW module
- Frequency 45 to 440 Hz
NH Research, Inc.
16601 Hale Avenue, Irvine, California 92606, USA.