Single-phase stepped voltage stabilizers Hertz V3.0, 11–27.5 kW (50 … 125 A)

Single-phase stepped voltage stabilizers Hertz V3.0, 11–27.5 kW (50 … 125 A)

Country: Ukraine · Model: V3.0 50 – 125 A

Single-phase Hertz V3.0 stabilizers rated from 50 to 125 A (11–27.5 kW) are intended for sites with a large single-phase load: workshops, small production facilities, warehouses, shops and buildings with autonomous power sources. They are available with 16 steps (2.3 % accuracy) and 36 steps (1 % accuracy); efficiency is not less than 98 % and response time is 20 ms. A multi-line graphic LCD shows operating modes and mains parameters, while the event log and daily voltage and load charts help to analyze power quality. The housing is wall-mounted; models rated 100 A and 125 A have larger dimensions and weight.

Rated current and power: 50 A — 11 kW; 63 A — 14 kW; 80 A — 18 kW; 100 A — 22 kW; 125 A — 27.5 kW
Number of steps: 16 or 36
Stabilization accuracy: 2.3 % (16 steps); 1 % (36 steps)
Switch type: triac or thyristor, depending on model

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Technical specifications

Rated current and power	50 A — 11 kW; 63 A — 14 kW; 80 A — 18 kW; 100 A — 22 kW; 125 A — 27.5 kW
Number of steps	16 or 36
Stabilization accuracy	2.3 % (16 steps); 1 % (36 steps)
Switch type	triac or thyristor, depending on model
Dimensions, max.	535×300×175 mm (50–63 A); 570×320×190 mm (80 A); 1015×365×170 mm (100–125 A)
Weight, max.	27 kg (50–63 A); 30 kg (80 A); 57 kg (100–125 A)
Bypass (transit) — thresholds	Umin 120 V, Umax 265 V
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
Degree of protection	IP20
Climatic version	УХЛ, category 4.2
Cooling	forced, 2 two-speed fans
No-load power	20 W

Analogues in the catalogue

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

Description

Main features: step switching within 20 ms; 16 or 36 steps; multi-line graphic LCD, menu in three languages; event log, daily voltage and load charts; audible overload alarm, short-circuit current limitation; input and output chokes against RF interference, varistor protection; wall-mounted installation, terminal connection.

Technical data: Rated current and power — 50 A — 11 kW; 63 A — 14 kW; 80 A — 18 kW; 100 A — 22 kW; 125 A — 27.5 kW; Number of steps — 16 or 36; Stabilization accuracy — 2.3 % (16 steps); 1 % (36 steps); Switch type — triac or thyristor, depending on model; Dimensions, max. — 535×300×175 mm (50–63 A); 570×320×190 mm (80 A); 1015×365×170 mm (100–125 A); Weight, max. — 27 kg (50–63 A); 30 kg (80 A); 57 kg (100–125 A); Bypass (transit) thresholds — Umin 120 V, Umax 265 V; 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; Degree of protection — IP20; Climatic version — УХЛ, category 4.2; Cooling — forced, 2 two-speed fans; No-load power — 20 W.

Application: workshops, small production facilities and warehouses; retail and office premises with a large single-phase load; facilities with generators of proportionate power; networks with large voltage fluctuations.