Schneider S1B31559 CUBR Current Transformer Unit

Feature & Principle

It converts primary high current into proportional low secondary current for metering and protection relays. The magnetic core isolates high voltage circuit, provides safe low-current signal for measurement and fault protection logic.

Specifications

Model: S1B31559 Brand: Schneider Electric Type: CUBR Primary rating: 630A Application: RM6 ring main unit Mounting: Inside MV switchgear Certification: IEC, CE

Components & Diagnostics

Magnetic core, secondary winding, insulation housing, secondary terminal block. Common faults: secondary open circuit, insulation aging, inaccurate ratio, loose wiring terminals.

Product Brief

S1B31559 current transformer, Schneider medium voltage switchgear spare widely used for RM6 ring main unit current monitoring and protection.