3-Phase Servo Commercial Voltage Stabilizer | Data Center AVR Factory

SJW 3 Phase 40KVA Servo Voltage Stabilizer for Commercial Data Centers

The SJW 3 Phase 40KVA Servo Voltage Stabilizer is designed to deliver clean, stable, and reliable power for commercial facilities and modern data centers. With its high-accuracy ±3% voltage correction, servo motor control, and real-time digital monitoring, it ensures uninterrupted performance for sensitive IT loads, servers, networking equipment, and precision industrial electronics.

Built for 24/7 continuous operation, this stabilizer helps reduce equipment failure, prevent downtime, and extend the lifespan of mission-critical systems. For organizations that rely on stable power—data centers, telecom rooms, financial institutions, security monitoring hubs, hospitals, and manufacturing lines—SJW stabilizers provide a long-term, high-efficiency power protection solution.

Key Features & Advantages

✔ Engineered for Data Centers & Commercial Facilities

The 40KVA model supports high-density loads including:

Server racks & network switches
Storage arrays & UPS systems
Telecom equipment
Industrial automation systems
Precision laboratory electronics

✔ Wide Input Voltage Range Available

Choose from standard ranges AC 260–450V or 304–456V, or request a fully customized configuration to match local grid conditions.

✔ High Accuracy ±3% Output Regulation

Ensures stable 380V three-phase output, preventing overloads, overheating, and equipment malfunctions caused by power fluctuation.

✔ Advanced Servo Motor Control

Provides smooth, precise voltage correction with:

Fast response speed
Low distortion
High durability
Stable performance under heavy load

✔ Real-Time Digital Display

Monitor all key parameters directly on the panel:

Input voltage
Output voltage
Load ratio
Fault indicators

✔ Multiple Built-in Protections

Essential protection functions for critical IT equipment:

Over-voltage
Low-voltage
Overload
Short circuit
Over-temperature
Custom delay protection
Optional undervoltage protection

✔ High Efficiency >95%

Reduces energy consumption and heat generation, ideal for long-term and large-scale commercial operation.

Technical Parameters

Model		SJW3-1.5KVA~120KVA
Phase		Three phase
Input voltage		AC 260-450V, 304-456V or customized
Output voltage		AC 380V or customized
Frequency		50Hz/60Hz
Precision		±3%
Efficiency		>95%
Control type		Servo motor
Digital display		Show input and output voltage,Load Ratio and Fault Indicator
Protection		Overvoltage, Overload, Short circuit, Over temperature
Ambient temperature		-10°C~+ 40°C
Relative Humidity		<95%
Waveform Distortion		No additional wave form distortion
Insulating Resistance		Normally more than 2MΩ
Insulating Class		Class B
Protection	Overvoltage	Output Voltage ≥ 425V ± 4V
	Low voltage	Output Voltage ≤ 310V ± 4V
	Over temperature	95℃±10℃
	Delay protection	Customizable
	Undervoltage	Disabled by default, customizable if needed
Power		10KVA	15KVA	20KVA	30KVA	40KVA
Size(mm) LWH		490320520	490320520	490320520	410460880	410460880
N.W(kg)		35.5	41	46.5	85.5	95.5
Power		50KVA	60KVA	80KVA	100KVA	120KVA
Size(mm) LWH		4505501195	4505501195	5206201335	5206201335	5206201335
N.W(kg)		121.5	136	158.5	186	198
The size and weight vary depending on the voltage range, and are subject to the customized actual product.

FAQ

1. Is the 40KVA stabilizer suitable for modern data centers?
Yes. It is designed specifically for continuous, high-load environments such as server rooms, telecom stations, and digital infrastructure facilities.

2. How does servo control improve voltage stability?
Servo motors correct voltage smoothly and precisely, ensuring high accuracy and protection for sensitive electronics without generating distortion.

3. Can I customize the input and output voltage?
Absolutely. We can tailor voltage ranges to meet your local grid and equipment requirements.

4. Does the stabilizer work with UPS systems?
Yes. It can be installed before UPS units to ensure clean input voltage and reduce UPS battery stress.

5. What happens if the voltage becomes too low or too high?
The stabilizer automatically triggers protective actions such as bypassing, shutdown, or delay start to ensure safety.

6. Is this equipment suitable for 24/7 operation?
Yes. It is built for continuous use and ideal for mission-critical facilities requiring constant power stability.

Looking for a reliable 3-phase servo stabilizer for your data center or commercial facility?
We offer OEM service, competitive factory pricing, and fast delivery.

👉 Contact us today for a quotation or technical support.
Our engineering team can help you choose the right model for your load requirements.