• Regenerative design: feeds back up to 90% of absorbed power to the local AC grid, cutting electricity cost and reducing cooling and noise.
• High power density: up to 800 W in a 1U half-rack unit; output to 600 V and 30 A; 12 wide-range models.
• Multi-channel scale: synchronous control of up to 256 channels (16 x 16) with synchronization or proportional tracking; parallel connection of up to 16 units.
• High-speed measurement: 10 readings per second update rate maintained even with 16 stand-alone units connected.
• Eight operating modes (CC, CV, CP, CR, CV+CC, CC+CR, CV+CR, CV+CC+CP+CR); adjustable current rise/fall time; List programming.
• Battery functions: battery-discharge test (CC) with voltage, capacity, and time cut-offs, plus battery-simulation mode for charger testing.
• Precharge function to prevent DC loading-current overshoot; standard temperature measurement and over-temperature protection (optional sensor IT-E1203); optional anti-reverse protection (IT-E118).
• Extensive protection (OCP, UCP, OVP, UVP, OPP, over-temperature, grid-fault with fault storage, foldback, power-off, sense-abnormal) with automatic grid-state detection; five optional interfaces (RS232, CAN, LAN, GPIB, USB_TMC, USB_VCP, RS485, analog, IO).

• Battery discharge testing of various battery types (CC, with voltage/capacity/time cut-offs).
• Battery capacity testing and screening of disqualified batteries.
• Battery charger testing using battery-simulation mode.
• Multi-channel power supply testing (synchronous or proportional tracking).
• Semiconductor and component aging/burn-in (where regeneration cuts energy and cooling cost).
• Power regulator and smart electronic switch (IPS) burn-in testing.

• Output Power: Up to 800 W per unit (200 W / 400 W / 800 W tiers)
• Voltage Range: Up to 600 V (60 V, 150 V, 300 V, 600 V classes)
• Current Range: Up to 30 A (60 V models)
• Form Factor: 1U half-rack; modular, stackable; 19-inch mounting with IT-E154 kit
• Channel Scalability: Up to 256 channels (16 x 16)
• Parallel Capability: Up to 16 units; 37U rack holds 64 channels
• Measurement Update Rate: Up to 10 readings per second (maintained across up to 16 units)
• Energy Regeneration Efficiency: Up to 90%
• Operating Modes: 8 (CC, CV, CP, CR, CV+CC, CC+CR, CV+CR, CV+CC+CP+CR)
• Functions: battery discharge (voltage/capacity/time cut-off), battery simulation, List programming, adjustable current rise/fall time, precharge, electricity-accumulation display, automatic grid-state detection
• Protection: OCP, UCP, OVP, UVP, OPP, over-temperature, grid-fault with fault storage, foldback, power-off, sense-abnormal; optional anti-reverse (IT-E118)
• Temperature Measurement: standard, optional external sensor IT-E1203; range -20 to 120 °C, accuracy plus or minus 1 °C, resolution 0.1 °C
• AC Input: 100 to 240 VAC (plus or minus 10%), 47 to 63 Hz (single-phase)
• Communication Interfaces: five optional, RS232, CAN, LAN, GPIB, USB_TMC, USB_VCP, RS485, analog, IO
• Model Count: 12

The ITECH IT-M3300 Series is a compact regenerative DC electronic load. It simulates load characteristics like a conventional load, then returns absorbed energy to the local AC grid rather than turning it into heat. With regeneration efficiency up to 90%, it lowers electricity cost and removes much of the cooling and noise a heat-dissipating load adds to a test cell.

High power density puts up to 800 W of absorption in a 1U half-rack unit, with output to 600 V and 30 A. The series has 12 wide-range models, so one unit covers a broad span of devices, and the modular design stacks without extra parts and mounts in a 19-inch cabinet with the IT-E154 kit.

Its defining strength is multi-channel scale: independent channels synchronize or proportionally track across up to 256 channels, with parallel connection of up to 16 units and a measurement update rate of 10 readings per second maintained even across 16 stand-alone units. Eight operating modes (CC, CV, CP, CR and four combined modes), battery-discharge and battery-simulation functions, a precharge function to prevent loading-current overshoot, and List programming cover a broad test matrix.

Protection is extensive (OCP, UCP, OVP, UVP, OPP, over-temperature, grid-fault with fault storage, foldback, power-off, and sense-abnormal), with automatic grid-state detection and standard temperature measurement.