Growatt SM-US-200 Smart Meter with 2x 200A CTs

The Growatt SM-US-200 Smart Meter is a high-accuracy, ANSI C12.20 Class 1.0 electricity meter engineered for Growatt residential energy storage and solar systems. Bundled with two 200A current transformers (CTs), this meter monitors real-time power imports and exports at the main electrical service panel, enabling advanced energy management system (EMS) modes including self-consumption, zero-export control, and battery charging optimization.

Key Features & Benefits

• Comprehensive Energy Management: Enables dynamic export limitation and auto-consumption modes to maximize solar self-use and prevent grid feed-in.
• High-Precision Measurement: Certified to ANSI C12.20 Class 1.0 standards for accurate monitoring of voltage, current, and power flow.
• Complete Hardware Kit: Includes two 200A CTs designed for standard split-phase 208V/240V residential panel installations.
• Fast Data Transmission: Features an ultra-fast serial reporting interval of less than 1 second over an RS485 communication link.
• Compact & Lightweight: DIN-rail mountable compact design weighing only 0.44 lbs for easy installation inside distribution panels.

Technical Specifications

• Model Name: SM-US-200
• Part Number / MPN: 045.0095000
• Nominal Voltage: 208V / 240V AC
• Voltage Input Type: 1P2W, 2P3W
• Nominal Current: 200A (via included CTs)
• Accuracy Class: ANSI C12.20 Class 1.0
• Communication Interface: RS485
• Serial Reporting Interval: < 1 second
• Dimensions (W × H × D): 2.1 × 3.5 × 2.0 in (54.1 × 87.8 × 52 mm)
• Weight: 0.44 lbs (0.2 kg)
• Operating Temperature: -22°F to 131°F (-30°C to 55°C)
• Certifications: UL 1741, CSA C22.2 No. 107.1-01
• Warranty: 5 Years