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Introduction
In the world of electrical contracting, control, and industrial power systems, the demand for components that deliver both technical performance and long-term reliability is greater than ever.
When it comes to selecting a miniature current switch, you’re not just choosing specifications on paper — you’re choosing stability, safety, and dependable support.
That’s where Mohamed Harb Company stands out — bridging the gap between high-end technology, field expertise, and real-world project execution.
In this article, you’ll discover why the K Series miniature current switches from Schneider Electric, supplied by Mohamed Harb, represent a smart choice for engineers, contractors, and facility owners alike.
Overview of Mohamed Harb Company
Located in Cairo, Mohamed Harb Contracting and Electrical Supplies Company operates with a clear vision: “Where Quality Meets Value.”
Through years of experience in finishing works, electromechanical contracting, and equipment supply, the company has become a trusted partner for both public and private institutions.
Visit the official website
Far beyond being a supplier, Mohamed Harb provides integrated services — from design and procurement to installation and technical support — in collaboration with global leaders such as Schneider Electric.
Learn more on their About Us page
By sourcing the K Series miniature current switches through Mohamed Harb, you’re not just buying a product — you’re securing full support, professional installation, and lifecycle assistance.
Why Choose the K Series Miniature Current Switches?
✅ Compact Size and Cost Efficiency
In many electrical systems, the requirement is for a small, reliable, easy-to-mount switch — exactly what the K Series provides.
✅ High Performance and Reliability
Designed for small motors, auxiliary loads, and control circuits, these switches guarantee durable and stable operation under continuous use.
✅ Technical and After-Sales Support
Buying from Mohamed Harb means more than just receiving the component; it includes follow-up, installation guidance, and full system integration.
✅ Compatibility with Local Environments
The K Series is engineered to perform reliably under local temperature, voltage, and humidity conditions — when selected correctly, it’s a robust choice for diverse applications.
K Series Products – What You Should Know
🔹 What is the K Series?
The K Series from Schneider Electric includes a range of miniature contactors and current switches for AC circuits — ideal for controlling small to medium-sized motors and loads.
🔹 Key Technical Specifications
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Rated Voltage: Available for common industrial and building power standards.
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Rated Current: Designed for light-to-medium loads.
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Poles: Typically 3 P (three-pole) for three-phase systems, with other configurations available.
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Utilization Category: Usually AC-3, suitable for motor control applications.
🔹 The Mohamed Harb Advantage
When supplied and installed by Mohamed Harb Company, you receive:
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Proper sizing based on load, voltage, and environment.
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Verification of compatibility with your electrical panels.
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Full technical support during commissioning.
🔹 Internal Links
🔹 External References
Applications and Project Use Cases
Water Pumping and HVAC Systems
The K Series is ideal for controlling small motors in water, air-conditioning, and ventilation systems — reliable performance in compact form.
Electrical Control Panels
Perfect for secondary control panels in industrial and commercial buildings, enabling efficient control of auxiliary devices such as fans, valves, and pumps.
Industrial Ventilation and Cooling Units
For HVAC applications, these contactors manage small compressors and ventilation units safely and efficiently.
Used in Mohamed Harb Projects
From government buildings to industrial facilities, Mohamed Harb integrates K Series switches into larger systems for efficient, safe operation.
Learn more about the company’s projects
Technical Selection and Evaluation Criteria
Load and Voltage Assessment
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Calculate rated current (In) and inrush current for motors.
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Match the switch voltage to the project’s supply voltage (e.g., 400 V / 440 V / 690 V).
Poles and Utilization Category
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Use 3 P contactors for three-phase loads.
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Choose the correct category: AC-3 for motors or AC-1 for resistive loads.
Environmental Considerations
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Evaluate heat, humidity, or dust — these factors impact switch lifespan.
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High switching frequency requires higher-quality contacts.
System Integration
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Ensure coordination with upstream breakers, relays, protection devices, and wiring.
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With Mohamed Harb’s integrated design, system compatibility is guaranteed.
Cost and Lifecycle Optimization
Over- or under-sizing can both cause problems. Mohamed Harb helps you balance performance, cost, and safety to achieve an optimal selection.
Installation and Maintenance Tips
Installation Phase
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Always disconnect the power source before working.
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Mount in a ventilated, clean location.
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Use wire sizes and terminals according to manufacturer recommendations.
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Tighten terminals properly to prevent vibration or overheating.
Initial Operation
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After startup, monitor switch temperature for a few hours.
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Listen for unusual sounds or vibrations.
Periodic Maintenance
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Regularly check terminal tightness and signs of overheating.
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Clean the device and remove dust buildup.
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Replace switches that show discoloration or contact wear.
When to Replace
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After many switching cycles or signs of thermal stress.
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When project conditions change (higher load, different environment).
Mohamed Harb Support
Through continuous after-sales service, Mohamed Harb provides on-site support, component replacement, and system upgrades as needed.
Integration with Mohamed Harb’s Complete Solutions
Mohamed Harb offers comprehensive project solutions, not just component sales.
Their services include:
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Design of electrical and control panels
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Supply of high-quality components from top brands
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Professional installation and commissioning
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Ongoing maintenance and technical support
Choosing the K Series through Mohamed Harb ensures:
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Perfect compatibility with your electrical system
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Seamless installation and configuration
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Reliable after-sales and warranty service
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Reduced project risk and faster execution
In short — you’re not buying a switch; you’re investing in a complete solution
Frequently Asked Questions
Q1: What makes the K Series better than cheaper alternatives?
A: Superior performance, durability, and manufacturer backing from Schneider Electric, with local support through Mohamed Harb.
Q2: Can the K Series work in harsh environments?
A: Yes — with proper specification and protection. Always inform the supplier about environmental conditions.
Q3: What is the maximum current rating for a K Series switch?
A: It depends on the specific model, but the series targets small-to-medium loads.
Q4: How do I ensure authenticity?
A: Purchase only from authorized suppliers such as Mohamed Harb, and check warranty documentation.
Q5: What if my load changes later?
A: The company can reassess your setup and recommend an upgraded switch or redesign accordingly.
Why Mohamed Harb is Your Ideal Partner
When you choose Mohamed Harb, you choose more than a supplier — you choose a partner who understands your needs, supports your project from design to commissioning, and ensures long-term reliability.
What You Get:
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Genuine products from world-class brands
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Proven experience in government and private projects
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Expert installation and technical supervision
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Comprehensive turnkey solutions
If you’re planning to purchase K Series miniature current switches or need a complete control system, reach out today via the Contact Us page.
Resources and References
Conclusion
In summary, true efficiency isn’t just about individual components — it’s about an integrated, reliable, and well-supported system.
Choosing the K Series miniature current switches through Mohamed Harb Company is a smart step toward safer, more efficient, and longer-lasting electrical installations.
With Mohamed Harb as your partner, you gain not just quality products but full-cycle support — from supply and installation to operation and maintenance.
Start building smarter, safer systems today.
Visit muhamedharb.com and let Mohamed Harb’s team guide your next project.