Three-phase stepped thyristor voltage stabilizers Hertz V3.0, 16.5–53 kW (3×25 … 3×80 A)

Three-phase stepped thyristor voltage stabilizers Hertz V3.0, 16.5–53 kW (3×25 … 3×80 A)

Country: Ukraine · Model: V3.0 3×25 – 3×80 A

The Hertz V3.0 series comprises three-phase stepped voltage stabilizers with thyristor switches for workshops, production shops, warehouses and retail facilities with three-phase loads. Each phase is regulated independently by switching transformer taps within 20 ms; there are no moving parts, and efficiency is not less than 98 %. The series is available in two versions: 16 steps with 2.3 % accuracy and 36 steps with 1 % accuracy. The 36-step version is recommended for protecting high-precision loads, server rooms and medical premises. The models are rated for current from 3×25 to 3×80 A and power from 16.5 to 53 kW, with an input operating range of up to 100…280 V.

Rated current and power: 3×25 A — 16.5 kW; 3×32 A — 22 kW; 3×40 A — 27 kW; 3×50 A — 33 kW; 3×63 A — 41 kW; 3×80 A — 53 kW
Number of steps: 16 or 36
Stabilization accuracy: 2.3 % (16 steps); 1 % (36 steps)
Dimensions, max.: 725×480×310 mm (25–63 A); 810×520×325 mm (80 A)

Request a quote All specifications

Technical specifications

Rated current and power	3×25 A — 16.5 kW; 3×32 A — 22 kW; 3×40 A — 27 kW; 3×50 A — 33 kW; 3×63 A — 41 kW; 3×80 A — 53 kW
Number of steps	16 or 36
Stabilization accuracy	2.3 % (16 steps); 1 % (36 steps)
Dimensions, max.	725×480×310 mm (25–63 A); 810×520×325 mm (80 A)
Weight, max.	75; 75; 77; 77; 86; 96 kg (in order from 25 to 80 A)
Conductor cross-section per phase	from 4–16 mm² (min.) to 30–40 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, selectable; mechanical bypass (transit); phase synchronization function in incomplete-phase operation; two three-segment LED indicators per phase and a linear load bar; network analyzer with measurement of current and input power; protection against short circuit, overload and overheating; input and output chokes against RF interference, varistor surge protection; floor-standing installation, terminal connection.

Technical data: Rated current and power — 3×25 A — 16.5 kW; 3×32 A — 22 kW; 3×40 A — 27 kW; 3×50 A — 33 kW; 3×63 A — 41 kW; 3×80 A — 53 kW; Number of steps — 16 or 36; Stabilization accuracy — 2.3 % (16 steps); 1 % (36 steps); Dimensions, max. — 725×480×310 mm (25–63 A); 810×520×325 mm (80 A); Weight, max. — 75; 75; 77; 77; 86; 96 kg (in order from 25 to 80 A); Conductor cross-section per phase — from 4–16 mm² (min.) to 30–40 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: workshops, production shops and warehouses with three-phase loads; machine tools, compressors, pumps, ventilation; server rooms and medical premises (36-step version); facilities with generators of proportionate power.