Schneider Electric Harmony three-phase monitoring relay

Name: Schneider Electric Harmony three-phase monitoring relay
Brand: Schneider Electric

Self-powered three-phase monitoring relay detects incorrect phase sequence or loss of two or more phases and supplies alarm/control contacts.

Connection & role

Connect its status contacts to a compatible controller input. It monitors the supply; it is not a remote power-switching relay.

This is a power or feedback component. It does not provide native Matter connectivity.

Nominal monitored supply: 208–440 V AC; confirm the exact regional datasheetSource ↗
Outputs: 2 changeover contacts, 5 A nominalSource ↗
Monitoring: Phase sequence and loss of two or more phasesSource ↗

Nominal supply rating and measurement limits are different specifications; do not select a 480 V installation from a regional page title alone.
Not an undervoltage, phase-imbalance or remote power-switching device.

Sources & documentation (3)

Schneider Electric

Self-powered three-phase monitoring relay detects incorrect phase sequence or loss of two or more phases and supplies alarm/control contacts.

Connect its status contacts to a compatible controller input. It monitors the supply; it is not a remote power-switching relay.

This is a power or feedback component. It does not provide native Matter connectivity.

Nominal monitored supply: 208–440 V AC; confirm the exact regional datasheetSource ↗
Outputs: 2 changeover contacts, 5 A nominalSource ↗
Monitoring: Phase sequence and loss of two or more phasesSource ↗

Nominal supply rating and measurement limits are different specifications; do not select a 480 V installation from a regional page title alone.
Not an undervoltage, phase-imbalance or remote power-switching device.

Sources & documentation (3)