PowerMaster®
Model 335 Load Box

3-Phase Phantom Load Testing
CT Burden Added Testing
One Lightweight Package- Includes Storage of Cables and Probes
Raising the Standard in Electric Meter Test Equipment
The PowerMaster Model 335 Load Box is a revolutionary new electric meter test equipment accessory that complements the already versatile 3 Series. By utilizing a Model 335 with a 3 Series, the user will have the ability to perform 3-phase phantom load meter testing up to 5A while implementing the new current harmonic waveforms from ANSI C12.20.
In addition, this accessory will give the user the ability to perform a CT burden added test along with the 3 Series exclusive burden measurement test. Its compact size allows the 335, the 3 Series, and all standard accessories to be stored in the same carrying case. With the added functionality of the 335, the lightweight 3 Series is truly a step above.
- Alternative to the devices presently available for purchase;
- Smaller, more convenient device;
- True one-case solution, containing the analyzer, cables, and probes all in one case
- Able to leave the cables connected to analyzer to reduce the amount of time hooking up cables at each site
- Internal battery;
- Improved reliability and shorter downtimes;
- IEC 61010 safety certification
Direct Inputs
3 inputs, 100mA to 20A RMS
Aux. Power:
1 input, 120 to 240VAC
Current Source
AC Current: 3 outputs, 100mA to 5A RMS max
Power Factor: -1.00 to 1.00
CT Burden Added Test
Automated, User Selectable
0.1, 0.3, 0.5, 1, and 2Ω
Environmental
Operating Temperature: -20ºC to +50ºC
Operating Humidity: <95% RH, non-condensing @ 23ºC
Battery
3100mAh Li-ion
3-hour charging cycle (0-40ºC)
Weight
Package (includes case & 3 Series): 20lbs
Warranty
2 years
Safety
Isolation Protection: IEC 61010-1: 2010*
Measurement Category: CAT IV 600V*
Degree of Protection: IP-40*
*Safety tested as an approved accessory with the CAT IV 600V version of the 3 Series to maintain IEC 61010 compliance.
Applications
Wh, VARh, VAh Meter Testing
CT Burden Added Testing from 0.1 to 2Ω
Forward Energy Flow
Reverse Energy Flow
Element Testing
Calibration Verification
- Site Verification
- Revenue Protection
- Customer load meter test
- CT ratio testing
- CT Burden Measurement
- Vector Analysis
- Harmonic capture
- Waveform
- Magnetic IR Pickup
- Current Flex Probes
- High Voltage LiteWire Current Probe