Relay-Based Stabilizer with Overload Protection for 3D Printing Labs Worldwide

• Customization: Available
• Current Type: AC
• Phase: Single Phase
• Model NO.: 20000VA
• Frequency Characteristics: Power Frequency
• Usage: SVC
• Frequency: Industrial Frequency
• Size: Small
• Iron Core Shape: Ring
• Power Source: Linear Regulated Power Supply
• Application Range: Any Occasion Requiring Stable Voltage
• Brand: Mingch or OEM Optional
• Item Name: Air Conditioner Voltage Stabilizer
• Main Product: Voltage Regulator;Voltage Stabilizer;VFD
• Capacity: 500va and Above
• Efficiency: Over 98%
• Response Time: Less Than 1s
• Input Voltage: 90V-260V
• Output Voltage: 220V+/-10%
• Protection: Over Voltage/Under Voltage
• Transport Package: Cartons, Wooden Cases, Pallets
• Specification: Relay control type
• Trademark: MINGCH or OEM optional
• Origin: Zhejiang, China
• HS Code: 8504401990
• Production Capacity: 6000pieces/Month

Product Description

Servo motor control type automatic voltage stabilizer

Precision electronic equipment;Household appliances;Medical equipment

Specification

Innovative Design

Integrated Voltage Stabilizer combining:

Ideal for:

1. Slim-profile Voltage Stabilizer –  ultra-thin core regulating components integrated on a professionally developed circuit board.
2. Adjustable Mounting Adaptation – Universal design (compatible with all work environments)
3. Non-degrading Stable Operation – Sustained voltage stabilization for 30000+ hours of continuous work

- Precision electronic equipment: Such as computers, servers, printers, projectors, etc. It prevents crashes, data loss, or hardware damage caused by voltage fluctuations.
- Household appliances: Such as refrigerators, air conditioners, washing machines, televisions, etc. It avoids shortened service life due to sudden voltage surges/drops, and is especially commonly used in old residential areas or regions with unstable power supply.
- Medical equipment: Such as small medical testing instruments, physical therapy equipment, etc. It ensures stable voltage to maintain the accurate operation of the equipment.

Technical Highlights

Feature	Specification
High-precision voltage stabilization	voltage stabilizer can control the output voltage accuracy within ±3%, and some industrial-grade products even reach ±1%. They can accurately offset voltage fluctuations of more than ±10% in the power grid, meeting the needs of precision equipment.
Fast response speed	When facing sudden rises/drops in grid voltage (such as instantaneous fluctuations of ±20%), the response time can be shortened to the millisecond (ms) level, preventing voltage fluctuations from "shocking" the equipment, which is especially suitable for medical and industrial equipment sensitive to voltage.
Wide input voltage range	Conventional products support an AC input of 150V-250V, while special models (e.g., for outdoor/industrial use) can cover AC 120V-300V, enabling adaptation
Multiple fault protection	Integrates functions such as Over-Voltage Protection (OVP), Under-Voltage Protection (UVP), Over-Load Protection (OLP), and Short-Circuit Protection (SCP). When voltage/current is abnormal, it automatically cuts off the output to prevent equipment burnout or damage to the voltage regulator itself.
Lightning protection/anti-interference design	Industrial-grade voltage regulators have built-in lightning protection modules (capable of withstanding instantaneous lightning strikes below 10kV). At the same time, filter circuits reduce electromagnetic interference (EMI) in the power grid, ensuring the stable operation of equipment with weak anti-interference capabilities such as medical equipment and servers.
Intelligent digital control	Equipped with a microcontroller unit (MCU), it can display real-time parameters such as input/output voltage and load rate through an LED/LCD screen; some models support remote monitoring via mobile phone APP, which is convenient for unattended scenarios (e.g., server rooms).
Low power consumption and energy saving	No-load power consumption can be reduced to less than 1W, and full-load efficiency reaches over 90%. Long-term use can reduce electricity waste, which is especially suitable for equipment that needs to operate 24 hours a day (e.g., refrigerators, monitoring systems).

Packing & Delivery

Standard Export Pack:

OEM Services:

1× Core Equipment - voltage stabilizer
1× Installation and Connection Accessories
1× Instruction and Certificate Materials
1× Protective and Cushioning Materials

Custom logo embroidery (min. 300pcs)
Private label packaging
Customization is available for size, appearance and color

After Sales Service

24-month warranty

Basic Quality Warranty (Core Coverage)

Additional Service Coverage

against manufacturing defects

Free repair or replacement of core components (such as voltage regulation modules, circuit boards, heat dissipation systems, etc.) that malfunction due to manufacturing defects. All non-human-caused damages are covered.

- Free on-site service: For industrial-grade high-power voltage regulators (usually above 10kW), if a fault occurs within the warranty period, the manufacturer provides free on-site inspection and repair (small-power household models mostly require "drop-off repair").
- Backup unit support: In custom orders from some corporate clients, the service of "providing temporary backup voltage regulators during the fault period" is included to reduce downtime losses (this coverage is generally not available for ordinary retail orders).

Company Profile

ZHEJIANG MINGCH ELECTRICAL CO.,LTD.

Focus: Innovative voltage stabilizer since 1993.
Capacity: 10,000 units/month.
Clients: Provided for global regions in need of stable voltage.

Factory Advantages:

Other Products

1. The factory independently produces core components, including but not limited to coils and circuit boards.
2. Customized samples can be provided within 72 hours.
3. 24-hour online service is available.

1.FREQUENCY INVERTER
2.TRANSFORMER
3. UPS

Certifications

STABILIZER LVD

FREQUENCY INVERTER LVD

POWER INVERTER LVD

FAQ

Voltage Stabilizer FAQ
 
1. What is the working principle of a voltage stabilizer?
Voltage stabilizers are divided into linear and switching types. Linear ones use an active current-carrying device controlled by a high-gain differential amplifier, compare output voltage with a precision reference, and adjust the device to maintain constant output. Switching types convert DC input to switching voltage; the filtered output is fed back to the control circuit for stable output.
2. What are the types of voltage stabilizers?
Common types include mechanical, non-contact, inductive, and parametric stabilizers. They differ in regulation accuracy, response speed, and applicable scenarios.
3. How to select a suitable voltage stabilizer?
Consider input voltage range, output voltage/current, regulation accuracy, response speed, load type, and power capacity. Also base the choice on usage scenarios and budget.
4. Can a voltage stabilizer be used with a UPS (Uninterruptible Power Supply)?
Yes, but confirm the UPS's input voltage range. The recommended connection is "stabilizer → UPS" in series.
5. Will a voltage stabilizer increase electricity costs?
No. High-quality stabilizers have no-load loss usually below 3%; some even save electricity by optimizing current paths to reduce losses.
6. What are common faults of voltage stabilizers and how to troubleshoot?
Common faults: unstable output, no output, overheating, abnormal noise, and automatic protection activation. Causes may include circuit failure, relay damage, abnormal input voltage, blown fuses, or poor heat dissipation. Troubleshoot by replacing damaged parts, cleaning dust, or adjusting input voltage.
7. How to maintain a voltage stabilizer?
Regularly clean internal dust and check cooling fan operation. Clean monthly in dusty areas; brush the air inlet quarterly and inspect the fan yearly to prevent overheating damage.

Product Description