Overview
The General Electric 50-103131-LSSV1 is a transformer-rated AC ammeter designed for industrial power monitoring and switchboard applications. This AB-40 series ammeter provides 0-1200A measurement capability with a 240:1 current transformer ratio, enabling accurate measurement of high-current circuits via standard secondary transformer inputs. Built to ANSI C39.1 standards, this instrument delivers reliable performance in demanding industrial environments.
Key Features
- 0-1200A full-scale measurement range with 5A secondary rating
- 240:1 CT (current transformer) ratio for transformer-based installations
- 40-70 Hz AC operation suitable for standard industrial power systems
- ANSI C39.1 accuracy class 1 ±1.0% of full scale
- Rugged panel-mount design for switchboards and control enclosures
- Made in USA construction with proven reliability
Technical Specifications
- Measurement Range: 0–1200 amperes (full scale)
- Secondary Rating: 5 amperes full scale
- CT Ratio: 240:1
- Frequency: 40–70 Hz AC
- Instrument Type: AB-40 panel ammeter
- Accuracy Class: ANSI C39.1, Class 1 (±1.0% of full scale)
- Mounting: Panel mount (standard switchboard installation)
- Zero Orientation: Zero-left (industry standard)
- Manufacturer: General Electric
- Part Number: 50-103131-LSSV1
- Condition: Used, tested, fully functional
Typical Applications
- Industrial power monitoring on main feeder and branch circuits
- Switchboard and control panel current measurement
- Motor circuit supervision and load monitoring
- Electrical distribution system metering
- Generator and transformer bank monitoring
Compatibility & Replacements
Compatible With
- Standard 240:1 current transformers (CTs)
- Industrial switchboards and control enclosures
- Panel cutouts 4.5″ x 4.5″ (AB-40 standard)
- Systems rated 40–70 Hz AC supply
Replaces / Drop-In Replacement For
- Other GE 50-103131 AB-40 ammeters with matching CT ratio and frequency
- Verify exact replacement compatibility with system documentation before ordering
Works With
- Current transformer secondary circuits (standard CT wiring)
- Industrial AC power distribution systems
- ANSI-compliant switchboard and metering installations
