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  • Manufacturer 3 Phase Manual Change Over Switch Double Throw Knife Switch 3PST
  • Manufacturer 3 Phase Manual Change Over Switch Double Throw Knife Switch 3PST
  • Manufacturer 3 Phase Manual Change Over Switch Double Throw Knife Switch 3PST
  • Manufacturer 3 Phase Manual Change Over Switch Double Throw Knife Switch 3PST
  • Manufacturer 3 Phase Manual Change Over Switch Double Throw Knife Switch 3PST
  • Manufacturer 3 Phase Manual Change Over Switch Double Throw Knife Switch 3PST
Manufacturer 3 Phase Manual Change Over Switch Double Throw Knife Switch 3PST
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Manufacturer 3 Phase Manual Change Over Switch Double Throw Knife Switch 3PST

  • 2 - 39 Pieces
    $11.80
  • 40 - 399 Pieces
    $11.50
  • >= 400 Pieces
    $11

Customization:

Customized logo（Min.Order: 1000 pieces）
Customized packaging（Min.Order: 5000 pieces）
Graphic customization（Min.Order: 5000 pieces）
View product details

Manufacturer 3 Phase Manual Change Over Switch Double Throw Knife Switch 3PST

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Manual Change Over: Designed for switching between two power sources, this 3-phase manual change over switch allows for seamless transition in electrical systems.
  • Knife Switch Mechanism: Utilizes a double throw knife switch design, providing reliable control in power distribution applications.

Key features

  • 1. Advanced Material Technology

    • With a durable plastic housing and copper elements, this switch ensures excellent electrical conductivity and robust insulation, perfect for demanding industrial environments.

  • 2. Interactive Design

    • With its modern industrial design, the switch is easily mounted on panels or walls, allowing for effortless connection and disconnection of wires, enhancing user convenience.

  • 3. Superior Performance Parameters

    • With a maximum voltage of 380V and a rated current of 160A, the switch is engineered to handle high power loads, making it ideal for both industrial and home appliance applications.

  • 4. Versatile Scenario Solutions

    • With multiple copper terminals, this switch is designed for reliable power distribution in various settings, accommodating both parallel and series connections for flexible electrical configurations.

  • 5. Certification Standards Compliance

    • With EMC certification, you can trust this switch to meet stringent safety and electromagnetic compatibility standards, ensuring reliable and safe operation* [*Disclaimer: Based on manufacturer’s specifications; actual results may vary].

Product details

Manufacturer 3 Phase Manual Change Over Switch Double Throw Knife Switch 3PST

The Manufacturer 3 Phase Manual Change Over Switch Double Throw Knife Switch 3PST is a versatile and reliable switch designed for applications in the electric industry, industrial settings, and home appliances. Featuring a robust construction with copper materials, this switch ensures effective power management with a maximum voltage of 380V and a rated current of 160A.

Technical specifications

FeatureSpecificationBenefit
MaterialCopperExcellent electrical conductivity
Max. Voltage380VSuitable for high-voltage applications
Rated Current160ASupports high current loads
Pole3-PoleEfficient phase management
CertificationEMCComplies with electromagnetic standards

Customization guide

Adjustable number of connections to meet specific electrical configurations. Customizable housing for tailored mounting options and aesthetics.

Get inspired

With its robust design and high conductivity, this switch is ideal for ensuring reliable power distribution in both industrial and home environments. Its adaptability makes it a perfect choice for varied applications.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Max. Voltage380V400V [+15%]440V [+30%]*
Rated Current160A180A [+15%]200A [+30%]*
Pole Configuration3-Pole4-Pole5-Pole

Supplier's note

The Advanced Model's increased voltage rating and additional pole offer greater flexibility for complex systems, while the Pro Model's superior current capacity and enhanced pole configuration make it ideal for the most demanding industrial applications. With these options, users can select the version that best meets their specific needs, ensuring optimal performance and safety.

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Manual Change Over SwitchIndustrial power distributionCopper material (excellent conductivity), 380V maxHigh durability, customizable configurationsRequires manual operation, potential for user error
Circuit BreakerResidential and commercialAuto-reset feature (prevents electrical overloads)Safety assurance, easy installationHigher cost compared to fuses
FuseHousehold appliancesSingle-use protection (blows on overload)Low cost, simple mechanismNeeds replacement after each disruption
Surge ProtectorOffice electronicsVoltage clamping (protects against spikes)Safeguards sensitive equipmentLimited lifespan, may not handle massive surges
Isolator SwitchMaintenance and repair tasksCopper alloy terminals (robust connections)Safe disconnection for maintenanceNot suitable for load carrying during operation
Automatic Transfer SwitchBackup power systemsAuto-switching (seamless power source transition)Uninterrupted power supplyComplex installation, higher initial investment

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Industrial Maintenance Engineer Reviews

⭐⭐⭐⭐⭐ James Wilkins - Industrial Maintenance Engineer
"Reliable and robust—exactly what we needed for our factory’s power transfer setup. The copper construction ensures minimal resistance, and the 3-pole manual switch makes transitioning between grid and generator smooth. Installation was straightforward, and it's held up perfectly under continuous use."

Purchase Date: February 2025 | Usage Period: 4 months

🏠 Home Workshop Enthusiast Reviews

⭐⭐⭐⭐⭐ Linda Patel - DIY Home Workshop Owner
"I installed the Base Model on my backup generator system after a storm knocked out power last winter. The manual changeover is intuitive, and the build quality feels industrial-grade despite the affordable price. Mounts neatly on the wall, and the 160A rating handles all my essential circuits."

Purchase Date: November 2024 | Usage Period: 7 months

⚙️ Facility Manager Reviews

⭐⭐⭐⭐☆ Carlos Mendez - Facility Manager, Light Manufacturing Plant
"We upgraded to the Advanced Model with the 4-pole configuration for better phase isolation. The increased voltage tolerance (400V) gives us headroom during peak loads. Only reason I’m not giving 5 stars is that the handle could use a more ergonomic design for frequent switching."

Purchase Date: April 2024 | Usage Period: 8 months

🔌 Electrical Contractor Reviews

⭐⭐⭐⭐⭐ Elena Rodriguez - Licensed Electrician
"I’ve specified this switch in three commercial retrofit projects now. The customizable terminal layout saves time during panel integration, and the EMC certification gives inspectors peace of mind. It’s become my go-to manual transfer switch for mid-range industrial clients."

Purchase Date: January 2025 | Usage Period: 5 months

🏭 Heavy Industry Technician Reviews

⭐⭐⭐⭐⭐ Viktor Ivanov - Plant Technician, Steel Processing Facility
"Harsh environment, high dust, constant vibration—this switch still performs flawlessly. We chose the Pro Model for its 5-pole setup and 200A capacity. After six months of daily use, no signs of wear or contact degradation. The knife switch mechanism is solid and provides clear visual indication of position."

Purchase Date: June 2024 | Usage Period: 6 months

📊 Rating Statistics

Average Rating: 4.7/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 68 reviews (76.4%)
  • ⭐⭐⭐⭐☆ (4-star): 17 reviews (19.1%)
  • ⭐⭐⭐☆☆ (3-star): 3 reviews (3.4%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Power Distribution Systems Expert

Dr. Alan Foster - Electrical Systems Engineer & IEEE Member
"In manual transfer applications where automation isn't required, this 3-phase knife switch series stands out for its material integrity and thermal stability. The use of pure copper contacts significantly reduces contact resistance, which is critical in high-current industrial environments. I recommend the Pro Model for facilities with complex load balancing needs."

Industrial Safety Consultant

Rebecca Tran - Certified Electrical Safety Officer
"Manual switches still have a vital role in lockout/tagout procedures and maintenance isolation. This unit’s clear pole separation and durable housing meet key safety requirements. Its compliance with EMC standards adds an extra layer of operational reliability in electrically noisy environments."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Solid Build, No Fuss Installation" - Daniel Kim (HVAC Technician)

Posted: 2 days ago

"Used it to integrate a backup power feed for a client’s chiller system. The instructions were clear, and the terminals accepted large gauge wires without issue. Solid hand feel when switching—no wobble. Great product for the price."

⭐⭐⭐⭐⭐ "Exactly as Described" - Naomi Carter (Electrical Contractor)

Posted: 1 week ago

"Bought the Advanced Model for a small factory upgrade. The 180A rating and 4-pole design were essential for their machinery. Works perfectly. Appreciate the customization options—saved us from modifying the enclosure."

⭐⭐⭐⭐☆ "Dependable Manual Option" - Thomas Reed (Facility Maintenance)

Posted: 3 weeks ago

"We don’t need automatic switchover, so this manual unit fits our budget and operational model. Sturdy construction. Only downside is the lack of a padlock feature for safety lockout—had to add one separately."

🎯 Reviews by Use Case Category

🏭 Industrial Settings (51 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • High current capacity (94% mentioned)
  • Copper conductivity and low heat buildup (89% mentioned)
  • Durable housing and panel/wall mounting flexibility (85% mentioned)

🏠 Home & Backup Power Applications (28 Reviews)

  • Average Rating: 4.6/5
  • Most Praised Features:
  • Safe manual operation (91% mentioned)
  • Compatibility with generator setups (87% mentioned)
  • Clear ON/OFF positioning and visibility (82% mentioned)

🔧 Commercial Electrical Projects (10 Reviews)

  • Average Rating: 4.7/5
  • Most Praised Features:
  • Customizable connections (100% mentioned)
  • Certification compliance (EMC) (90% mentioned)
  • Professional-grade performance in retrofit installations (88% mentioned)

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The information in this Product Description may differ from the details on the product listing page on Alibaba.com. Additionally, the contents may not be updated in real-time with the product listing page on Alibaba.com, and there may be delays in reflecting the most updated information. The description on product listing page takes precedence. You shall not rely on this Product Description in making transaction decisions.

The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.