Overview
The Yokogawa YE/251440LSSN analog AC ammeter is a precision panel-mounted meter engineered for measurement and monitoring of AC current in industrial automation, control panels, and electrical distribution systems. With a 0-800mA scale range, this self-contained meter provides direct measurement of alternating current without the need for external transformers or shunts in many applications. Built on Yokogawa’s proven analog instrumentation platform, it delivers reliable, repeatable readings in demanding environments.
Key Features
- AC current measurement range: 0-800mA scale
- Iron vane meter movement for stable AC measurement across wide frequency ranges
- Direct panel-mount installation with standard 2-terminal connection
- Clear, easy-to-read analog scale with bold numerals and gradations
- Meets ANSI C39.1 industrial meter accuracy standards
- Durable construction suitable for manufacturing, process control, and utility applications
Technical Specifications
- Measurement Type: AC Current
- Scale Range: 0-800 mA
- Meter Type: Analog (electromechanical)
- Movement: Iron vane
- Operating Frequency: 25-500 Hz (typical for Yokogawa AC ammeters)
- Accuracy: ANSI C39.1 standard (±2% full scale typical)
- Connection: 2-terminal, direct connection
- Mounting: Panel-mount, recessed or surface flush mounting
Typical Applications
The YE/251440LSSN is commonly used in:
- Industrial control panels and electrical enclosures for monitoring load current
- Manufacturing equipment current measurement and diagnostics
- HVAC system electrical monitoring
- Motor and transformer circuit monitoring
- Process control systems requiring real-time current feedback
- Power distribution and utility metering applications
Compatibility & Replacements
Compatible With
- Industrial control systems and electrical enclosures (any 2-terminal AC current application)
- Manufacturing automation and process monitoring equipment
- Electrical distribution panels and sub-stations
- Standard 4-hole or 2-hole panel meter mounting cutouts
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or panel designer before ordering. The YE/251440LSSN replaces other Yokogawa analog AC ammeters with the same 0-800mA scale range and 2-terminal connection. Consult Yokogawa documentation or contact technical support to confirm direct replacement for legacy models.
Works With
- Standard industrial AC circuits (single-phase or three-phase with appropriate external measurement configuration)
- Compatible with shunts or current transformers for higher current ranges if needed
- Integrates into any control panel requiring direct analog AC current indication
- No software or digital integration required—standalone analog measurement device
