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Help CenterFactory Direct Wholesale of 40A 4P MCCB for Panel Builders
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As a dedicated manufacturer of electrical protection solutions, Jinhua Dika Electrical Equipment Co., Ltd. specializes in providing high-quality, reliable components directly from our factory. Our Factory Direct Wholesale of 40A 4P MCCB is engineered specifically for panel builders who demand precision, safety, and cost-efficiency in their assemblies. We understand that the heart of any electrical panel is its protective devices, and this MCCB is designed to offer robust circuit protection, ensuring the longevity and safe operation of the equipment it safeguards. By sourcing directly from us, you eliminate intermediary markups, gain better control over your supply chain, and receive products backed by our commitment to manufacturing excellence and comprehensive quality management systems.
This 40A, 4-pole Molded Case Circuit Breaker is a versatile and critical component for industrial control panels, distribution boards, and machinery. Its core function is to automatically interrupt electrical flow in the event of an overload or short circuit, preventing damage to downstream equipment and mitigating fire risks.
- Robust Construction & Reliable Protection: Housed in a durable molded case that provides high dielectric strength and resistance to environmental factors, the breaker incorporates a precise thermal-magnetic trip unit. The thermal element responds to sustained overcurrents, while the magnetic element acts instantaneously on severe short-circuit faults.
- Designed for Panel Builder Convenience: Features a clear ON/OFF indication, a trip indicator for easy fault diagnosis, and both front and side auxiliary contact mounting capabilities. The compact design optimizes space within the panel, allowing for higher density layouts.
- Flexible Configuration Options: Available in fixed or plug-in versions to suit different panel design philosophies. Terminal connections are designed for secure and efficient wiring.
- Wide Application Scope: Ideal for protecting circuits in commercial buildings, industrial plants, infrastructure projects, and OEM equipment where 400V AC three-phase systems with a neutral are used.
The technical specifications of our 40A 4P MCCB are detailed below to aid in your design and selection process.
| Parameter | Specification |
|---|---|
| Rated Current (In) | 40 Amperes |
| Number of Poles | 4 |
| Rated Operational Voltage (Ue) | 400V AC, 50/60Hz |
| Rated Insulation Voltage (Ui) | 800V |
| Ultimate Breaking Capacity (Icu) | 35 kA at 400V AC |
| Trip Unit Characteristic | Thermal-magnetic, C curve (standard) |
| Electrical Durability | Up to 20,000 make-break cycles at rated current |
| Mechanical Durability | Up to 20,000 operations |
| Mounting | DIN rail mounting (35mm) |
| Standards | Complies with IEC 60947-2, GB 14048.2 |
Choosing our MCCB provides distinct advantages for your business. You benefit from direct manufacturer pricing, which enhances your project's profitability. The product's proven reliability reduces the risk of field failures and costly callbacks. Its compliance with international standards ensures it meets the technical requirements of projects worldwide. Furthermore, our streamlined logistics from major ports like Shanghai, Tianjin, Guangzhou, and Ningbo facilitate timely delivery to your production line.
Jinhua Dika Electrical is a company built on a foundation of quality and reliability. With an annual export value ranging between US$1 Million and US$1.5 Million, we serve a global clientele across North America, South America, Europe, Asia, Africa, and Oceania. Our operations are underpinned by a robust quality management framework, including ISO 9001 for quality assurance and ISO 14000 for environmental management. This 40A 4P MCCB is a product of this disciplined environment, manufactured by our team of 11-50 skilled professionals. For panel builders seeking a dependable, cost-effective protective device from a trustworthy source, this MCCB represents a smart investment. Contact us today to discuss your volume requirements and experience the Dika advantage of direct wholesale supply.
Frequently Asked Questions (FAQ)
Q1: What does '4P' mean in the product description?
A1: '4P' stands for 4 Poles. This breaker simultaneously interrupts all three phase conductors and the neutral conductor in a three-phase electrical system, providing complete circuit isolation.
Q2: Is this MCCB suitable for motor protection?
A2: While it offers overload and short-circuit protection, this specific model with a standard thermal-magnetic trip (C curve) is typically used for general distribution circuit protection. For dedicated motor protection with features like adjustable overload settings, a motor protection circuit breaker (MPCB) is recommended.
Q3: Can I get a sample order before placing a bulk purchase?
A3: Yes, sample orders are often available for evaluation. Please contact our sales team to discuss sample availability, lead time, and associated costs.
Q4: What is the delivery lead time for a wholesale order?
A4: Lead times vary based on order quantity and current production schedule. For standard configurations, we typically aim for efficient turnaround. Specific timelines can be provided upon receipt of your detailed inquiry.
Q5: Do you offer customization, such as different current ratings or special accessories?
A5: We primarily focus on standard configurations for wholesale efficiency. However, modifications like different current ratings within the same frame size or specific auxiliary contacts may be possible for larger volume orders. Please inquire with your requirements.
Q6: What are the main shipping ports, and do you handle export documentation?
A6: We ship from major Chinese ports including Shanghai, Tianjin, Guangzhou, and Ningbo. We handle all necessary export documentation, including commercial invoice, packing list, and certificate of origin, to facilitate a smooth international shipment process.
Q7: How does the thermal-magnetic trip unit work?
A7: The trip unit combines two mechanisms. A bimetallic strip bends slowly when heated by a sustained overcurrent (thermal trip), eventually triggering a release. A solenoid reacts instantly to the high magnetic field generated by a massive short-circuit current (magnetic trip), providing rapid disconnection.
Q8: Is this breaker approved for use in my country?
A8: This MCCB is manufactured to comply with international IEC standards, which are widely accepted. However, local regulations and specific project specifications may require additional national certifications. It is the buyer's responsibility to verify the product's suitability for the intended local application.
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