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Tesla MCI 1 & 2 RSD Specifications
| MCI-1 Maximum System Voltage | 600V DC |
| MCI-2 Maximum System Voltage | 1000V DC |
| Operating Temperature | -40°C to 70°C |
| Maximum Devices per String | 5 |
| Power Consumption | 7W maximum |
| Enclosure Rating | NEMA 4X/IP65 |
| Control Method | Line Excitation |
| Passive State | Normally Open |
| Input Current Rating (IMP) | 13A |
| Short Circuit Current (ISC) | MCI-1: 19A, MCI-2: 17A |
| Certification | UL 1741 PVRSE, UL 3741 |
| Warranty | 25 years |
Complete Residential Solar Systems + Energy Storage
*Tesla Powerwall only available with Tesla Certified Installers
Tesla MCI-1 and MCI-2 Solar Rapid Shutdown Devices
SKU TESLA-RSD-DEVICES-ACC
Tesla MCI-1 and MCI-2 Rapid Shutdown Devices
The Tesla Mid-Circuit Interrupter (MCI) devices provide essential rapid shutdown functionality for solar photovoltaic systems, meeting NEC Article 690 requirements. These devices integrate seamlessly with Powerwall systems to ensure rapid solar array shutdown during loss of AC power, enhancing safety for emergency responders and maintenance personnel.
The MCI series includes two models: MCI-1 supporting up to 600V DC systems and MCI-2 designed for 1000V DC applications. Both models feature passive state operation and line excitation control, allowing up to five devices per string while maintaining reliable shutdown capability with minimal power consumption.
Tesla MCI RSD Benefits & Features
- Code Compliance: Meets NEC Article 690 rapid shutdown requirements for solar PV systems.
- Multiple Voltage Options: MCI-1 for 600V DC and MCI-2 for 1000V DC maximum system voltages.
- Low Power Operation: Maximum power consumption of 7W during normal operation. Environmental Protection - NEMA 4X/IP65 rated enclosure for reliable outdoor performance.
- Simple Integration: Direct compatibility with Powerwall systems for automatic shutdown.
- Extended Lifespan: 25-year warranty matches typical solar system longevity.
- Solar array rapid shutdown
- Emergency response safety
- Maintenance isolation
- NEC code compliance
- Powerwall system integration
- PV system protection
Tesla MCI RSD Applications
Tesla MCI-1 and MCI-2 Rapid Shutdown Devices Review
The Tesla MCI Rapid Shutdown devices provide essential safety functionality for solar PV installations. The dual product offering accommodates both 600V DC and 1000V DC system configurations, while maintaining consistent operational characteristics across the product line. The devices' low power consumption of 7W and support for up to five units per string enables efficient system design, while the NEMA 4X/IP65 enclosure ensures durability in outdoor installations.
The MCI series demonstrates careful consideration of installation requirements and long-term reliability. The passive normally-open design enhances safety functionality, while direct compatibility with Powerwall systems enables automated shutdown during grid outages. The 25-year warranty matches typical solar system lifecycles, and the UL 1741 PVRSE certification confirms compliance with current safety standards. The robust environmental specifications, including operation from -40°C to 70°C, support installation across diverse climate conditions.
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