# Photovoltaic rapid shutdown function

Canonical URL: https://eloragrid.ai/symbols/photovoltaic-rapid-shutdown
Publisher: Elora Grid
Updated: 2026-10-27
Lookup label: RSD
Drawing use: Schematic
Reference families: Manufacturer

Rapid shutdown is a defined solar-system function that changes specified circuit conditions following a shutdown command.

## In plain English

### What does Photovoltaic rapid shutdown function mean?

Rapid shutdown is a defined solar-system function that changes specified circuit conditions following a shutdown command.

### A simple example

A shutdown controller and field devices can form the selected shutdown arrangement.

### What the drawings help you do

Identify the initiating command, controlled equipment and the circuit boundary to which the shutdown action applies. This makes the intended action understandable without inventing a shutdown time or compliance claim. The selected system documentation establishes those requirements and how the devices achieve them.

### Before using this reference

- Show the initiating command and controlled devices.
- Identify the relevant circuit boundary.
- Reference the selected shutdown behaviour and applicable installation requirements.

### Does a rapid-shutdown symbol prove a compliant system?

No. A functional label does not establish operating time, voltage conditions, coverage or installation compliance. The complete selected equipment and installation design must demonstrate the required behaviour.

### Terms

- Initiation: The event or command that starts the shutdown sequence.
- Boundary: The part of the installation to which a specified shutdown requirement applies.

Concept diagram: Shutdown initiation → Selected shutdown controls → Defined circuit condition
Original functional explanation. Arrows show information or energy roles; two-headed arrows identify two-way interfaces. This is not a pinout, certified standards graphic or complete circuit.

- [Solar rapid shutdown function](https://www.ti.com/solution/rapid-shutdown)


## What it represents

Rapid shutdown is a defined solar-system function that changes specified circuit conditions following a shutdown command.
A shutdown controller and field devices can form the selected shutdown arrangement.
Identify the initiating command, controlled equipment and the circuit boundary to which the shutdown action applies. This makes the intended action understandable without inventing a shutdown time or compliance claim. The selected system documentation establishes those requirements and how the devices achieve them. This is original functional artwork, not a certified standard graphic or device pinout.

## How to read it

- Show the initiating command and controlled devices.
- Identify the relevant circuit boundary.
- Reference the selected shutdown behaviour and applicable installation requirements.
- The functional block does not assert compliance, shutdown boundaries or a particular operating time.

## Information to show or reference

- Show the initiating command and controlled devices.
- Identify the relevant circuit boundary.
- Reference the selected shutdown behaviour and applicable installation requirements.

## Important distinction

The functional block does not assert compliance, shutdown boundaries or a particular operating time.

## Facts

- Representation type: Original functional block; not a certified IEC or IEEE graphic
- Concept input: Shutdown initiation
- Concept output: Defined circuit condition

## Public references

- [Solar rapid shutdown function](https://www.ti.com/solution/rapid-shutdown) — Texas Instruments. Solar rapid shutdown function: public technical context for the named function. Product and compliance details remain with the publisher.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.