STE38-A STS Prepaid Three-Phase Keypad-Type Electricity Meter

Product Description

Core Features

1. Measurement & Compliance

• Compliant with STS standards and designed for three-phase four-wire systems, meeting balanced load requirements of commercial/industrial/residential scenarios.
• Adopts international high-end metering chips, ensuring Class II protection and reliable, precise measurement of voltage, current, active/reactive power, and four-quadrant energy.
• Supports neutral current measurement and bidirectional metering, adapting to diverse electricity usage patterns.

2. Functional Advantages

• Prepaid management: STS token recharge, generates 20-digit token receipts, automatic switch-off when credit is insufficient, and credit alarming for timely top-ups.
• Flexible tariff setting: Supports up to 8 multi-tariff plans, catering to different billing needs.
• Remote capabilities (optional): Equipped with an RF communication module for remote reading, real-time consumption monitoring, and remote on/off control.
• Comprehensive safety & maintenance: Features tamper switch, cover opening detection, event logging, and real-time clock; 8-year battery life ensures long-term stable operation of core functions.

3. Product Design & Durability

• Intuitive operation: Equipped with a liquid crystal display (LCD), keypads, and LED indicators for clear data viewing and easy operation; includes a transparent wiring protective cover.
• Robust construction: Thickened flame-retardant shell material, IP54 dust and water splash resistance, ensuring safety, stability, and durability.
• Easy installation: Back triangular fixed positions and hanging hole design simplify mounting and layout.

4. Technical Parameters

• Working voltage range: 70%~120%Un; active energy constant: 400imp/kWh.
• Power consumption: <2W/<8VA (voltage circuit), <1VA (current circuit).
• Operating temperature: -25℃~70℃; storage temperature: -40℃~85℃.
• Electromagnetic compatibility: 4kV AC insulation strength, 8kV impulse voltage, 8kV contact electrostatic discharge, 16kV air discharge, adapting to complex electrical environments.