Chroma 6310 Series Programmable DC Electronic Loads

2 models with full specifications from Chroma.

The Chroma 6310 series is a modular programmable DC electronic load system designed for testing multi-output AC/DC power supplies, DC-DC converters, and electronic components. This technical overview covers the Chroma 6314 four-slot mainframe and the Chroma 63102A dual-channel electronic load module. Together, these components allow test engineers and technical buyers to build scalable, multi-channel testing configurations.\n\nBy separating the control mainframe from the load modules, the system offers high flexibility. The mainframe provides the control interface and power distribution, while individual modules handle the load simulation. This modular approach optimizes space in test racks and allows for independent channel configurations to meet specific voltage, current, and power requirements.

Mainframe Slots
4 slots (Chroma 6314)
Maximum Channels
Up to 8 channels using dual-channel modules
Maximum System Power
1200 W (configuration dependent)
Module Channels
2 isolated channels (Chroma 63102A)
Module Ratings per Channel
100 W, 80 V, 20 A (Chroma 63102A)
Rack Height
4U (Chroma 6314)

Models in this series

ModelTypeDimensions (W×H×D)DisplayInterfaces
63102AElectronic Loads82 × 172 × 409 mmNone (uses mainframe display or host software control)Via mainframe (GPIB, USB, RS-232, RS-485, LAN optional interfaces)
6314Electronic Loads439×176×545 mmVFD (Vacuum Fluorescent Display)GPIB and RS-232 (standard)

Mainframe Architecture and Control

The Chroma 6314 acts as the physical and electrical foundation of the testing setup. It is a 4U rack-height mainframe containing four slots. When populated with dual-channel modules such as the Chroma 63102A, the unit supports up to eight isolated channels. It delivers a maximum total power capacity of 1200 W depending on the specific module configuration.\n\nFor configuration and monitoring, the mainframe features a built-in Vacuum Fluorescent Display (VFD). Standard physical interfaces include GPIB and RS-232, while optional support for USB, RS-485, and LAN is available depending on the configuration. Power is supplied by a user-selectable 115 V or 230 V AC line input with a maximum power consumption of 150 VA. Internal fans provide forced air cooling to manage system temperatures during operation.

Multi-Channel Load Capabilities

The Chroma 63102A is a dual-channel load module designed to slide into the slots of the mainframe. Each of its two isolated channels operates independently, drawing power directly from the mainframe backplane to simplify cabling.\n\nEach channel supports input parameters up to 100 W, 80 V, and 20 A. For low-voltage, high-current applications, the module can operate down to a minimum voltage of 1.6 V at its full 20 A rating. It features a Constant Current (CC) mode with two programming ranges: a low range of 0 to 2 A (0.5 mA resolution) and a high range of 0 to 20 A (5 mA resolution). Programming accuracy for both ranges is rated at ±(0.1% of setting + 0.1% of range). Constant Voltage (CV) mode is also supported with a low range of 0 to 16 V.

Frequently asked questions

How are the modules in the Chroma 6310 series powered?
Load modules, such as the Chroma 63102A, do not have independent power cords. They are inserted into the slots of a mainframe like the Chroma 6314 and are powered directly through the mainframe backplane.
What physical interfaces are available for system control?
The Chroma 6314 mainframe standard configuration includes GPIB and RS-232 interfaces. When modules are installed, optional USB, RS-485, and LAN interfaces can be accessed via the mainframe.
Does the Chroma 63102A module have its own display?
No, the Chroma 63102A module does not have an integrated display. It is operated and monitored using the host mainframe's VFD display or via connected computer control software.