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M97XX Series

High-Speed Precision
DC Electronic Loads

The M97XX series is Maynuo's new-generation programmable DC electronic load. Built around high-performance chips, it delivers high speed, high precision and high stability across an exceptionally wide range — from 150 W bench units up to 200 kW high-power systems, in 150 V and 500 V variants.

The complete M97XX line

All M97XX models share the same operating modes, precision and protection — they differ in power, current and voltage. Standard models are 150 V; “B” models extend to 500 V; “C/E/F” add higher current; “D” combines high current with high voltage. Models in stock link through; the rest are available on request.

150 W – 300 W

Best for: bench R&D, education and small power supplies & adapters.

Model	Power	Current	Voltage
M9710	150 W	0–30 A	0–150 V	View →
M9711	150 W	0–30 A	0–150 V	View →
M9712	300 W	0–30 A	0–150 V	View →
M9712B	300 W	0–15 A	0–500 V	View →
M9712C	300 W	0–60 A	0–150 V	Request quote
M9712B30	300 W	0–30 A	0–500 V	Request quote

600 W – 1200 W

Best for: battery, charger and adapter testing.

Model	Power	Current	Voltage
M9713	600 W	0–120 A	0–150 V	Request quote
M9713B	600 W	0–30 A	0–500 V	Request quote
M9714	1200 W	0–240 A	0–150 V	View →
M9714B	1200 W	0–60 A	0–500 V	Request quote

1800 W – 3000 W

Best for: production test and larger power supplies.

Model	Power	Current	Voltage
M9715	1800 W	0–240 A	0–150 V	Request quote
M9715B	1800 W	0–120 A	0–500 V	Request quote
M9716	2400 W	0–240 A	0–150 V	Request quote
M9716B	2400 W	0–120 A	0–500 V	Request quote
M9716E	3000 W	0–480 A	0–150 V	Request quote

3600 W – 6000 W

Best for: production lines, high-power supplies and power systems.

Model	Power	Current	Voltage
M9717	3600 W	0–240 A	0–150 V	Request quote
M9717B	3600 W	0–120 A	0–500 V	Request quote
M9717C	3600 W	0–480 A	0–150 V	Request quote
M9718	6000 W	0–240 A	0–150 V	Request quote
M9718B	6000 W	0–120 A	0–500 V	Request quote
M9718D	6000 W	0–240 A	0–500 V	Request quote
M9718E	6000 W	0–120 A	0–600 V	Request quote
M9718F	6000 W	0–480 A	0–150 V	Request quote

High power · 10 kW – 200 kW

Best for: EV battery packs, racks and energy-storage systems.

Model	Power	Current	Voltage
M9834	10 kW	0–500 A	0–150 V	Request quote
M9835	15 kW	0–500 A	0–150 V	Request quote
M9835B	15 kW	0–240 A	0–500 V	Request quote
M9836	20 kW	0–500 A	0–150 V	Request quote
M9836B	20 kW	0–240 A	0–500 V	Request quote
M9837	35 kW	0–500 A	0–150 V	Request quote
M9837B	35 kW	0–240 A	0–500 V	Request quote
M9838	50 kW	0–500 A	0–150 V	Request quote
M9838B	50 kW	0–240 A	0–500 V	Request quote
M9839	100 kW	0–500 A	0–150 V	Request quote
M9839B	100 kW	0–240 A	0–500 V	Request quote
M9840	200 kW	0–1500 A	0–150 V	Request quote
M9840B	200 kW	0–500 A	0–500 V	Request quote

The 10 kW–200 kW high-power loads also have their own dedicated page with full detail. High Power DC Loads →

Models marked “Request quote” are available on request — contact us for pricing and lead time.

Operating modes

Six precise operating modes cover every load scenario — including combined modes that protect the device under test from current strike.

CC — Constant Current

Sinks a set current regardless of the input voltage.

CV — Constant Voltage

Sinks enough current to hold the source at the set voltage.

CR — Constant Resistance

Sinks current proportional to input voltage for a set resistance.

CW — Constant Power

Consumes a constant power as input voltage and current vary.

CC + CV

Current shifting into voltage — protects the source from current strike.

CR + CV

Resistance shifting into voltage — protects the source from current strike.

Dynamic testing

Switch rapidly between two load values to test transient response — in continuous, pulse or trigger operation.

Continuous

Periodically alternates between value A and value B with set timing.

Pulse

A trigger applies value B for one pulse width, then returns to value A.

Trigger

Each trigger toggles the load between value A and value B.

PC software & automated testing

Connect over GPIB / RS-232 / RS-485 / USB and drive the load from the free PC software — with live voltage, current and power graphs, full remote control and powerful automated test sequences.

Automatic test

8 data sets × 50 editable steps in any mode.

Battery test

CC discharge to a cut-off voltage for capacity.

Solar cell test

Multi-channel parameters with reporting.

Data logging

Export measured results to Excel reports.

Key features

High precision

Down to 0.01 mA / 1 mV resolution with up to 0.03% basic accuracy.

Full protection

Over-voltage, current, power, temperature and reverse-polarity protection.

VFD display & smart fan

Bright VFD readout and temperature-controlled fan for quiet operation.

PC control & automation

GPIB / RS-232 / RS-485 / USB with PC software for automated test.

High speed

High-performance chips deliver fast, stable response and dynamic load steps.

Widest range

One platform from 150 W to 200 kW, in 150 V, 500 V and 600 V variants.

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High-Speed PrecisionDC Electronic Loads