# Load-break switch

Canonical URL: https://eloragrid.ai/symbols/load-break-switch
Publisher: Elora Grid
Updated: 2026-10-13
Lookup label: LBS
Drawing use: SLD, Schematic
Reference families: IEC, IEEE / ANSI

A switch with a specified capability to make and break normal load current.

## What it represents

A load-break switch operates a loaded circuit under the normal conditions covered by its rating. It should not be confused with a circuit breaker, whose specified duties can include interrupting fault current. Some products combine switching and isolation, and some are used with fuses for a protection arrangement.
The SLD shows where the switch connects the circuit. Its schedule or manufacturer reference establishes the duty and capabilities. The device name, qualifiers and associated protective equipment explain more than the generic mark alone.

## How to read it

- Look for a separately identified fuse or breaker in the protection path.
- Check whether isolation is an additional specified function of the chosen product.

## Information to show or reference

- Reference the load-switching capability.
- Identify any associated protection device.
- Record the product type and operating arrangement.

## Important distinction

Fault-making, load-breaking and fault-breaking are different capabilities. Avoid using a single switch label as a substitute for the equipment specification.

## Facts

- Primary role: Normal-load switching
- Protection: May rely on separate protective devices
- Combined duties: Product-specific

## Public references

- [Elementary switching devices](https://www.electrical-installation.org/enwiki/Elementary_switching_devices) — Schneider Electric — Electrical Installation Guide. Public explanation of load-break switches and their relationship to protection.

## 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.