Tesla Backup Switch (Meter Collar)

Product Overview

The Tesla Backup Switch (meter collar, Tesla PN 1624171-00-X) simplifies Powerwall whole-home backup by installing in the meter socket between the utility meter and the meter base. Inside the collar, a contactor controls the home’s connection to the grid so Powerwall can island the residence during an outage.

A built-in consumption meter provides energy-usage monitoring for the home. The Backup Switch is intended specifically for Tesla Powerwall system architectures — not as a generic meter collar for other battery brands.

Best For

• Tesla Powerwall whole-home backup installs that use a meter-collar topology
• Projects where utility rules allow Tesla Backup Switch at the meter

Key Features

• Meter-socket Backup Switch for Powerwall systems
• Grid-isolation contactor for backup operation
• Integrated consumption metering
• Installs between meter socket and utility meter

Key Specifications

• Product: Tesla Backup Switch (Meter Collar)
• Tesla part number: 1624171-00-X
• Role: grid isolation + consumption metering for Powerwall backup
• Interface: standard meter socket (confirm form factor with Tesla install docs)

Compatibility / Important Considerations

• Utility approval required before ordering. Many utilities do not allow meter collars or have specific Tesla Backup Switch programs.
• Only for Tesla Powerwall system designs that specify this Backup Switch — verify Powerwall generation and Tesla install manual requirements.
• Service-equipment work requires licensed electricians and utility coordination; meter removal is typically a utility function.
• Shopify handle retains a legacy “apsmart…copy” slug — the product sold here is the Tesla Backup Switch, not an APsmart RSD module.