Current transformer Rittal SV 9677.365, white, single-piece

Rittal SV 9677.365 is a white, single-piece current transformer designed for installation in electrical distribution and control panels. It provides a stable method to measure and monitor alternating current for protection relays, meters and control equipment where a compact, panel-mounted sensing device is required.

Advantages

The single-piece construction simplifies mounting and reduces installation time compared with multi-part assemblies. The neutral white housing integrates with typical control cabinet interiors and offers clear cable routing around the core window. The transformer delivers repeatable current sensing suitable for protection, metering and control tasks, and is compatible with standard secondary circuitry used in industrial and commercial switchgear.

Suitable for

• Panel-mounted current measurement in distribution and control cabinets
• Feeding protection relays and overcurrent devices
• Integration with energy meters and monitoring systems
• Replacement or retrofit of existing panel current sensing elements

When it may not be suitable

This current transformer is intended for AC current sensing within electrical panels; it is not suitable for direct connection to low-voltage consumer loads or as a power isolation device. Applications requiring specialized cores, very high accuracy classes beyond typical panel transformers, or integrated secondary electronics may need a different product.

Key specifications

• Colour: white
• Form factor: single-piece, panel mount
• Primary conductor arrangement: through-core window for single conductor
• Intended use: current measurement for protection, metering and control
• Mounting: suitable for incorporation into distribution and control panels

How to use

Install the current transformer into the panel at the designated mounting point and pass the primary conductor through the core window. Secure the unit according to panel manufacturer instructions and connect the secondary terminals to the protection, metering or monitoring device using appropriate secondary wiring and safety practices. Verify correct polarity and perform an insulation and continuity check before energising the circuit. Calibrate or configure the connected instrumentation to match the transformer's expected secondary current ratio.

What to consider before purchase

• Ensure the transformer's physical dimensions and core window size fit the panel and primary conductor
• Confirm the required accuracy class and secondary current ratio match the protection and metering equipment
• Verify the intended mounting method and environmental suitability for the installation location

Usage recommendations

Always install and connect current transformers following applicable electrical standards and local regulations. Use short, shielded secondary leads where required, and fit shorting links or burden resistors only as specified by the system design to avoid unsafe secondary open-circuit conditions.