EV Engineering News

New CSM connectors allow easier handling for high-voltage testing

CSM has released C (Connector) variants of its High-voltage Breakout Modules (HV BM) for measuring current, voltage and power.

The C variant connection is designed to facilitate handling, reduce measurement setup time, and easily unplug for calibration. The new HV Breakout Module 1.2C is connected to the HV power cables via a PL500 connector system and allows single-phase measurements on separate HV+ and HV- cables. The HV Breakout Module 3.3C is connected to the HV cables, and measures voltages U12, U23, U31 and internal conductor currents of L1, L2, and L3 with a measurement data rate of up to 2 MHz per measured variable. The measurement data is transferred to the measuring computer via CAN and EtherCAT (HV BM 1.2C) or XCP-on-Ethernet (HV BM 3.3C). The PowerLok connectors are designed for operating currents up to 800 A. They include a quick-lock lever with connection position aid and a socket housing with integrated high-voltage locking for high vibrations. When mated, the connectors provide IP67 protection. Crimping tools are available for attaching the appropriate connectors to the cables, allowing for connectors to be attached to the cables directly on site.

Using the HV BM 1.2C, an electric powertrain can be connected to a battery simulator, a high-voltage battery or a fuel cell. A PTC heater or a braking resistor can be added in addition to the electric powertrain—the components can simply be plugged into the HV BM C variants. On electric motor or powertrain test benches, the HV BM 3.3C makes it easy to change test devices via the PowerLok connectors.

Source: CSM


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