High-Quality LED Digital Display Three-Phase Voltage Device for Hotel Power Distribution

• Customization: Available
• Operation: Electric Type
• Speed: High-Speed Circuit Breaker
• Model NO.: 4p
• Arc-Extinguishing Medium: Air
• Installation: Fixed
• Poles Number: 4
• Certification: ISO9001-2000, CE
• Breaking Capacity: Industrial Distribution, Commercial Building, Thre
• Structure: Modular DIN-Rail Type
• Type: Adjustable Voltage Protector
• Button Type: Silicone Button, Film Button
• Rated Voltage: AC 380V/400V
• Feature: Parameter Adjustable, Auto Reclosing
• Reset Type: Automatic Reset Over & Under Voltage Protector
• Nstallation Specification: 4-Module 72mm Compact DIN Rail Mounting
• Transport Package: Carton Box
• Specification: 4P
• Trademark: YICHEN
• Origin: China
• Production Capacity: 100000 Pieces/Year
• Package Size: 47.00cm * 23.00cm * 30.50cm
• Package Gross Weight: 16.500kg
• Lead Time: 8 days (1 - 5000 Pieces) ; To be negotiated ( > 5000 Pieces)

Product Description

Product Description

This 4P three-phase self-reset over/under voltage protector delivers reliable full-circuit safety protection. It adopts a high-precision detection chip to real-time monitor 380V three-phase voltage, accurately detecting overvoltage, undervoltage, voltage fluctuation, phase sequence errors and open circuit faults with zero false tripping. It instantly cuts off power once abnormalities occur, effectively protecting motors, distribution cabinets and industrial equipment from voltage damage. It also provides surge resistance against lightning and instantaneous voltage spikes for stable power system operation.

Featuring intelligent delayed self-reset, the unit automatically restores power after voltage stabilization, no manual operation required, perfect for unattended power scenarios and lowering maintenance costs. Made of flame-retardant and high-temperature resistant material, it boasts good insulation, low power consumption and strong durability. It supports standard 35mm rail mounting for quick installation. Widely applicable to industrial equipment, commercial distribution, building and construction 380V circuits, it effectively prevents electrical faults and fire risks, acting as a must-have safety component for three-phase power systems.

4P Over & Under Voltage Protector (Three-phase 380V)

Features: Professional three-phase four-wire protector that monitors three live wires and one neutral wire with phase loss and phase sequence detection for heavy-duty working conditions.

Functions: Provides protection against overvoltage, undervoltage, phase loss, phase sequence error, neutral wire breakage and three-phase unbalance with auto-reset function.

Applications: Widely used in factories, construction sites, central air conditioners, elevators and other 380V commercial and industrial high-power equipment.

Advantages: Comprehensive circuit protection and accurate fault identification, effectively preventing three-phase equipment burnout and reducing operational failure risks.

Product Name	4P Over & Under Voltage Protector
Number of Poles	4P
Rated Voltage	AC 380V/400V
Rated Current	40A, 63A, 80A, 100A
Housing Type	Pattern Housing, Standard Housing, Round Housing
Button Type	Silicone Button, Film Button
Display Type	Indicator Light Type, LED Digital Tube Type, LCD Liquid Crystal Type
Installation Specification	4-module 72mm compact DIN rail mounting (new narrow body, space-saving)
Reset Type	Automatic Reset Over & Under Voltage Protector

Application

Household Distribution Box Installation

Household Air-Conditioner Protection

Villa Outdoor Rainproof Box

Photovoltaic Solar System

Company Profile

Wenzhou Yichen Electric Co., Ltd. is located in Yueqing, Wenzhou, China's well-known low-voltage electrical base. We focus on R&D, manufacturing and global sales of adjustable voltage protectors, over-under voltage protectors, light & time control switches, energy meters and aerosol fire extinguishing devices. Featuring rich specifications, multiple pole types, display options and current parameters, our patented-design products support flexible OEM customization for various application scenarios and project demands.

With standardized production and strict internal quality control, our reliable products are widely exported to Europe, Southeast Asia, the Middle East, Africa and other overseas regions. Upholding the philosophy of "quality first, customer-oriented, credit-based", we provide cost-effective low-voltage protection products and timely professional technical support for global distributors, importers and project partners. We sincerely expect long-term stable cooperation with enterprises worldwide to achieve mutual benefit.

FAQ

1.Custom Electrical Product Support?

 Yes. We provide full OEM & ODM customization. We adjust product parameters, appearance, installation and functions to fit customers' project needs and local electrical standards for diverse application scenarios.

2.Product Quality Warranty Policy?

All products pass strict production and multi-level quality inspections. We offer standard warranty coverage and professional after-sales support for quality issues, guaranteeing long-term stable and safe product operation.

3.Available Payment & Delivery Terms?

 We support mainstream international payments like T/T and L/C. We partner with reliable global logistics providers, offering sea, air and land freight. Flexible shipment arrangements ensure on-time and intact cargo delivery.

4.Can you provide certifications & test reports?

Yes. Our products meet international and regional standards. We can supply complete certifications, factory inspection and product test reports to support customs clearance and project acceptance.

5.Do you support small-batch trial orders?

Yes. We accept both small-batch trial orders and large bulk orders. Consistent high quality and service are guaranteed for all orders to support customers' market verification and mass procurement.

6.Overseas after-sales service?

 We have a complete overseas after-sales system. Our professional team provides 24/7 online consultation, technical guidance, product training and fault solutions, delivering worry-free global service.