Three-phase stepped thyristor voltage stabilizers Hertz-PRO V3.0, 66–106 kW (3×100 … 3×160 A)

Three-phase stepped thyristor voltage stabilizers Hertz-PRO V3.0, 66–106 kW (3×100 … 3×160 A)

Country: Ukraine · Model: PRO V3.0 3×100 – 3×160 A

The Hertz-PRO V3.0 series is a high-power range of three-phase stepped voltage stabilizers with thyristor switches for production facilities, pumping stations, and large retail and administrative buildings. Models rated 3×100, 3×125 and 3×160 A provide 66, 83 and 106 kW and are available with 16 steps (2.3 % accuracy) and 36 steps (1 % accuracy). Response time to input voltage changes is 20 ms, efficiency is not less than 98 %, and the operating range extends to 100…280 V. The cabinet design, with floor-standing installation and terminal connection, is intended for long-term operation under load.

Rated current and power: 3×100 A — 66 kW; 3×125 A — 83 kW; 3×160 A — 106 kW
Number of steps: 16 or 36
Stabilization accuracy: 2.3 % (16 steps); 1 % (36 steps)
Dimensions, max.: 1280×384×779 mm

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Technical specifications

Rated current and power	3×100 A — 66 kW; 3×125 A — 83 kW; 3×160 A — 106 kW
Number of steps	16 or 36
Stabilization accuracy	2.3 % (16 steps); 1 % (36 steps)
Dimensions, max.	1280×384×779 mm
Conductor cross-section per phase	16 / 16 / 25 mm² (min.), up to 40 mm² (max.)
Switch type	thyristor
Efficiency	not less than 98 %
Output voltage	220 V per phase
Stabilization range within stated accuracy	150–260 V
Cut-off thresholds	Umin 100 V, Umax 280 V
Response time	20 ms
Mains frequency	45–65 Hz
Lower cut-off threshold adjustment	60–135 V
Output voltage adjustment	200–230 V
Cooling	forced, 2 two-speed fans
Degree of protection	IP20
Climatic version	УХЛ, category 4.2
No-load power	20 W per phase

Analogues in the catalogue

Specifications are taken from the manufacturer’s technical documentation. Updated 11/08/2026.

Description

Main features: thyristor step switching, 20 ms; 16 or 36 steps; mechanical bypass (transit); phase synchronization in incomplete-phase operation; network analyzer with measurement of current and input power; protection against short circuit, overload, overheating and overvoltage (varistors at input and output); input and output chokes against RF interference.

Technical data: Rated current and power — 3×100 A — 66 kW; 3×125 A — 83 kW; 3×160 A — 106 kW; Number of steps — 16 or 36; Stabilization accuracy — 2.3 % (16 steps); 1 % (36 steps); Dimensions, max. — 1280×384×779 mm; Conductor cross-section per phase — 16 / 16 / 25 mm² (min.), up to 40 mm² (max.); Switch type — thyristor; Efficiency — not less than 98 %; Output voltage — 220 V per phase; Stabilization range within stated accuracy — 150–260 V; Cut-off thresholds — Umin 100 V, Umax 280 V; Response time — 20 ms; Mains frequency — 45–65 Hz; Lower cut-off threshold adjustment — 60–135 V; Output voltage adjustment — 200–230 V; Cooling — forced, 2 two-speed fans; Degree of protection — IP20; Climatic version — УХЛ, category 4.2; No-load power — 20 W per phase.

Application: large workshops and production lines; pumping and compressor stations; server rooms, medical institutions and shopping complexes; facilities with generators of proportionate power.