Tigo RSS Transmitter – Single Core

NEC-Compliant Rapid Shutdown Signaling for Single-Channel PV Systems

The Tigo RSS Transmitter (Single Core) is a rapid shutdown signaling device designed to communicate with Tigo TS4-A-F and TS4-A-2F units for module-level shutdown capability. Ideal for smaller or single-string PV systems, this version supports a single core (one channel), ensuring a streamlined, cost-effective path to meeting NEC 2017/2020 rapid shutdown requirements.

Key Features

• Single-Core Version – Supports one PV string; perfect for compact or simplified installations
• NEC 2017 & 2020 Compliant – Enables fire safety shutdown at the module level
• Works with TS4-A-F and TS4-A-2F – Sends the required “keep-alive” signal to maintain module operation
• Automatic Shutdown – Signal stops during grid failure or system power-down for safety compliance
• Flexible Power Input – Compatible with various system voltages
• Easy Integration – DIN rail mountable for simple installation in combiner boxes or inverter enclosures
• UL PVRSS Certified – Approved for use with a wide range of inverters

This single-core transmitter is the ideal rapid shutdown solution for residential installers or solar professionals looking to meet fire safety codes with minimal system complexity.

Specifications

• Signal Output: 1 channel (single core)
• Power Input: 12–48V DC or 100–277V AC (depending on model)
• Compatibility: TS4-A-F, TS4-A-2F
• Mounting: DIN rail
• Compliance: NEC 2017/2020, UL 1741, UL PVRSS
• Operating Temp: -40°C to +70°C
• Certifications: UL, CE, FCC

Recommended For

• Single-string residential solar arrays
• NEC-compliant retrofits and new PV installs
• Tigo-enabled systems using TS4-A-F or TS4-A-2F