1P&3P Meter Terminal Block
The 1P&3P Meter Terminal Block is a precision-engineered electrical component designed for secure and efficient connections in energy metering systems. "1P" refers to single-phase metering, while "3P" indicates three-phase metering compatibility. This terminal block serves as a critical interface between electrical meters (e.g., kWh meters) and power distribution circuits, ensuring accurate data transmission and system safety. Its compact, modular design simplifies wiring in residential, commercial, and industrial electrical panels while adhering to global standards for reliability and performance.
Key Features & Technical Advantages
Dual-Phase Compatibility:
Supports both single-phase (1P) and three-phase (3P) metering configurations, offering flexibility for diverse grid setups.
Modular units can be stacked or grouped for multi-circuit applications.
High-Conductivity Terminals:
Electro-tin-plated copper alloy terminals minimize contact resistance (<0.5mΩ) and prevent oxidation, ensuring long-term stability.
Cage clamp or screw clamp options accommodate wire sizes from 0.5 mm² to 35 mm² (AWG 24-2).
Safety & Compliance:
Rated for 600V AC/DC and temperatures from -40°C to 120°C, with flame-retardant housing (UL94 V-0).
Complies with IEC 60669-1 (switches) and ANSI C12.1 (metering standards).
Installation Efficiency:
Transparent covers enable visual inspection of wire seating without disassembly.
Color-coded phases (e.g., brown/black/gray for L1/L2/L3 in 3P systems) reduce wiring errors.
Applications
Smart Metering: Integrates with digital kWh meters for real-time energy data collection in AMI (Advanced Metering Infrastructure).
Distribution Boards: Used in residential/commercial switchboards for compact, organized meter connections.
Renewable Energy Systems: Connects inverters to meters in solar/wind power installations.
Submetering: Enables tenant billing in multi-unit buildings via individual circuit monitoring.
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Voltage | 600V AC/DC |
| Rated Current | 76A (1P), 100A (3P) |
| Wire Range | 0.5–35 mm² (AWG 24-2) |
| Isolation Resistance | >100 MΩ (500V DC) |
| Certifications | CE, RoHS, UL (pending) |
Why Choose This Terminal Block?
Accuracy: Precision-machined terminals prevent loose connections, reducing energy measurement errors.
Durability: Corrosion-resistant materials ensure performance in humid or dusty environments.
Global Adaptability: Compatible with meters from Siemens, Landis+Gyr, and Schneider Electric.
