Overview
The Instrument Transformers Inc 350-801 current transformer delivers reliable current measurement across a wide frequency range. This 800:5A current transformer is engineered for industrial power systems where accurate current sensing is essential. With a 600V rating and 10KV BIL insulation level, the 350-801 meets the demands of modern metering, protection, and power monitoring applications in industrial facilities.
Key Features
- 800:5A current ratio for step-down measurement from 800A primary circuits to 5A secondary outputs
- 600V rated insulation with 10KV BIL for use in medium-voltage power systems
- Frequency range 50–400 Hz enables operation across DC, 50 Hz, and 60 Hz utility systems
- Panel-mounted design integrates into control cabinets and switchgear assemblies
- Transformer construction provides low magnetizing current and high accuracy for metering-class applications
Technical Specifications
- Primary Current Rating: 800A
- Secondary Current Rating: 5A
- Current Ratio: 800:5
- Voltage Rating: 600V
- BIL (Basic Impulse Level): 10 kV
- Frequency Range: 50–400 Hz
- Dimensions: 12 × 20 × 20 inches
- Weight: 35 lbs
- Mounting Style: Panel mount
- Part Number: 350-801
Typical Applications
- Power distribution metering and revenue billing systems
- Overcurrent protection relay circuits in medium-voltage systems
- Energy monitoring in industrial manufacturing facilities
- Motor control and switchgear current sensing
- Power quality analysis and load profiling
Compatibility & Replacements
Compatible With
- Industrial power distribution systems rated 600V and below
- Protective relay systems (electromechanical and solid-state)
- Revenue-grade metering equipment and power analyzers
- Motor control centers and switchgear assemblies
- Building management systems and SCADA power monitoring
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or electrical contractor before ordering. The 350-801 is a legacy part; consult archived equipment documentation or reach out to our sales team for specific legacy model cross-references.
Works With
- Analog ammeter circuits (0–5A secondary range)
- Digital power meters and data acquisition systems accepting 5A secondary input
- Protective relays with analog or digital 5A input terminals
- Industrial control systems and power monitoring software
- Systems requiring IEC 61869-2 or ANSI/IEEE C57.13 metering-class accuracy
