Schneider Electric 120R-102 Control Transformer

The Schneider Electric 120R-102 is a current transformer in the Square D line, delivering a 1000:5 ratio that steps down large primary currents to a 5 A secondary for measurement and control circuits. It is rated for up to 600 V and provides an isolated secondary suitable for connection to relays, metering, and instrumentation in industrial panels. The model name 120R-102 identifies a 1000:5 current transformer within Schneider Electric’s 120R family, a configuration commonly used in motor control centers and panel instrumentation where a precise, low-voltage current signal is required without exposing the sensing equipment to high-power lines. Ensure the 1000 A primary capability and 5 A secondary rating align with your system’s sensing requirements and that the 600 V rating matches your installation’s service voltage. This transformer integrates with Schneider Electric’s Square D equipment ecosystem and supports protection and control circuits that rely on accurate current sensing with electrical isolation.