Overview
The Square D 7RL-601 current transformer is a high-performance solid-core device engineered for accurate electrical current measurement in industrial and commercial control systems. With a 600:5 current ratio and Class 1 accuracy, the 7RL-601 delivers reliable readings for ammeters, wattmeters, and submetered applications across 50Hz to 400Hz operating frequencies.
Key Features
- 600:5 current transformation ratio for scaled measurement
- 30VA burden rating with ±1% accuracy at 60Hz
- Class 1 precision classification for general-purpose metering
- Solid-core design suitable for ammeters and wattmeters
- Brass stud terminals (No. 8-32 UNC) for secure connections
- Operates 50Hz to 400Hz frequency range
Technical Specifications
- Primary Current: 600A
- Secondary Current: 5A
- Current Ratio: 600:5
- Burden: 30VA
- Accuracy Class: 1 (±1% at 60Hz)
- BIL Rating: 10kV
- Operating Voltage: 600V
- Frequency Range: 50–400Hz
- Voltage Rated: 600V AC
- Terminal Type: Brass studs, No. 8-32 UNC
Typical Applications
- Ammeter circuits for current monitoring and measurement
- Wattmeter installations for power monitoring
- Cross-current compensation and load balancing circuits
- Submetering and energy management systems
- Industrial control panel instrumentation
Compatibility & Replacements
Compatible With
- Standard ammeter and wattmeter terminals rated for 5A secondary
- Control relays and submeters rated for Class 1 accuracy
- Industrial PLC and SCADA systems with analog input modules
- Panel-mounted and DIN-rail metering instruments
Replaces / Drop-In Replacement For
- 7RL-601-1 (equivalent solid-core unit)
- Legacy Square D or Schneider 600:5 current transformers with matching stud terminals
Works With
- Class 1 metering standards and IEC 61869 compliance
- Standard 5A secondary measurement circuits
- Analog instrumentation and protective relay systems












