Tigo TS4-A-2F – Fire Safety Rapid Shutdown Unit

NEC-Compliant Rapid Shutdown for Dual PV Modules

The Tigo TS4-A-2F is a rapid shutdown device designed for cost-effective, NEC 2017/2020-compliant PV system safety. Supporting two PV modules per unit, this solution enables module-level rapid shutdown functionality in case of emergency or power outage. Designed for use with a UL PVRSS-certified inverter and a Tigo RSS Transmitter, the TS4-A-2F ensures reliable protection and system flexibility without module-level monitoring or optimization.

Key Features

• Dual-Module Shutdown – Supports two PV modules per unit for efficient wiring and lower install costs
• NEC 2017/2020 Compliant – Enables module-level rapid shutdown as required by code
• No Monitoring or Optimization – Purely focused on safety for simplified system design
• Automatic & Remote Shutdown – Disables power at the module level when the RSS transmitter is off or grid power is lost
• UL PVRSS Certified – Works with approved inverters and Tigo RSS Transmitter
• Plug-and-Play Design – Easily mounts to standard PV modules with MC4 connectors

Ideal for residential and commercial installers seeking a cost-effective rapid shutdown solution with proven compatibility and fast deployment.

Specifications

• Max Voltage (per module): 80V
• Max Current: 15A
• Number of Modules: 2
• Connector Type: MC4
• Compliance: UL 1741, NEC 2017/2020, PVRSS listed
• Operating Temp: -40°C to +70°C
• Dimensions: 138 x 132 x 25 mm
• Weight: 430g
• Compatibility: Tigo RSS Transmitter & UL PVRSS-certified inverters

Recommended For

• Residential PV systems
• Commercial rooftop arrays
• Installers needing NEC-compliant safety without optimization
• Systems using string inverters requiring rapid shutdown devices