TOMZN Three Phase Voltage Protector Relay, Adjustable 63A 100A

Set adjustable voltage and current limits for a three-phase circuit with the TOMZN voltage protector relay. It monitors over-voltage, under-voltage, over-current, phase asymmetry and phase sequence, with adjustable delay and reconnection settings to suit your installation.

Choose the configuration that matches your supply: the 63A version with neutral is for 3 × 220V + N, while the 63A version without neutral is for three-phase 380V. The 100A version with neutral is listed for 3 × 220V + N. Check the phase and neutral arrangement before selecting a version.

Benefits & tips

• Adjustable limits: Set protection thresholds to match your preferred operating values.
• Phase monitoring: Asymmetry and phase-sequence protection add monitoring for three-phase supply conditions.
• Calibratable readings: Voltage and current can be manually calibrated.

Product specifications

• Type: Three-phase voltage protector relay; TOMZN model TOVPD3-63VA.
• Current settings: Over-current threshold 3–63A; continuous over-current times 1–20 or off.
• Voltage settings: Over-voltage 230–300V; recovery 220–295V. Under-voltage 140–210V; recovery 145–215V.
• Timing: Power-on and recovery times 1–500 seconds; power-off delay 0.1–30 seconds.
• Additional settings: Voltage and current deviation −9.5% to 9.5%; asymmetry 20–99V; phase-sequence protection on/off.
• Certification and connectivity: CE certified; no battery or wireless functionality.

Package includes:

• TOMZN three-phase voltage protector relay.

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