Tigo TS4-A-2F 25A Dual-Module Rapid Shutdown Device w/MC4 Connectors 485-00252-22

The Tigo Energy TS4-A-2F 485-00252-22 is a module-level rapid shutdown device designed to provide fire-safety functionality for two photovoltaic modules from a single unit. Part of Tigo's TS4 Flex MLPE platform, the TS4-A-2F adds rapid shutdown capability to standard PV modules while supporting modern high-current and bifacial module designs.

Rapid shutdown signaling is transmitted over the existing PV conductors using power-line communication (PLC). When paired with a Tigo RSS Transmitter or an inverter incorporating a Tigo-certified transmitter, the TS4-A-2F complies with NEC 2017, 2020, and 2023 Section 690.12 rapid shutdown requirements. 

Key Technology

• Two-Module Rapid Shutdown
  One TS4-A-2F connects to and provides module-level rapid shutdown functionality for two PV modules, reducing the number of MLPE devices required compared with single-module solutions.

• 20A Imp / 25A Isc High-Current Rating
  This 25A version supports up to 20A maximum operating current and 25A short-circuit current, making it well suited for modern high-current and bifacial PV modules. 

• Up to 1,400W Total PV Input
  Supports up to 1,400W maximum output power, corresponding to as much as 700W per module input for the 25A configuration.

• Two Independent Module Inputs
  Provides two PV module inputs with up to 80V maximum voltage per input and a 16–80V Vmp operating range.

• 99.9% Maximum Efficiency
  Ultra-high efficiency minimizes losses through the module-level rapid shutdown electronics.

• PLC Rapid Shutdown Signaling
  Uses power-line communication over the PV conductors, eliminating the need for separate rapid-shutdown communication wiring.

• Automatic Shutdown
  The PV array enters rapid shutdown mode following loss of AC grid power when installed as part of a compatible Tigo rapid shutdown system.

• <30-Second Rapid Shutdown
  Designed with a rapid shutdown time limit of less than 30 seconds.

• NEC 2017 / 2020 / 2023 Compliance
  Complies with NEC 690.12 rapid shutdown requirements when installed with a compatible Tigo RSS Transmitter or an inverter with a built-in Tigo-certified transmitter.

• MC4 Connector Configuration
  Part number 485-00252-22 is supplied with MC4 connectors for integration with compatible PV module and string wiring.

• Fast Module-Frame Installation
  Designed to snap directly onto a standard PV module frame or mount to the PV racking system for flexible installation. :contentReference[oaicite:3]{index=3}>

• IP68 / NEMA 3R Protection
  Rugged outdoor construction provides IP68 / NEMA 3R environmental protection for rooftop and ground-mounted installations.

• 25-Year Warranty
  Backed by a 25-year manufacturer warranty for long-term system reliability.

Best Uses

• PV Systems Requiring Rapid Shutdown
  Ideal for installations requiring module-level rapid shutdown functionality in accordance with applicable NEC 690.12 requirements.

• High-Current Solar Modules
  The 20A Imp / 25A Isc rating supports many modern high-current solar panels, including bifacial modules.

• High-Wattage PV Modules
  Supports up to 700W per module input, making it suitable for many current-generation large-format modules.

• Two-Module MLPE Architecture
  One device supports two modules, helping simplify MLPE installation and reduce the number of rooftop electronic devices.

• Tigo RSS Transmitter Systems
  Designed to operate with a compatible Tigo RSS Transmitter or an inverter containing a Tigo-certified rapid shutdown transmitter.

• New or Retrofit PV Systems
  Can add rapid shutdown functionality to new installations or upgrade compatible existing PV systems.

Product Specifications

Dual-Module Rapid Shutdown for Modern High-Current PV Systems

The Tigo TS4-A-2F 485-00252-22 combines two-module rapid shutdown, 20A Imp / 25A Isc capability, up to 1,400W total power, 99.9% maximum efficiency, MC4 connectivity, PLC signaling, IP68 protection, NEC 2017/2020/2023 rapid shutdown compatibility, and a 25-year warranty in a compact module-level safety device engineered for modern PV systems.

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