China wholesaler Qol16f 16way ANSI Load Center 125A 120/240V

Product Description

China Centro de Carga Square D equivalent QOL-1F QOL-2F QOL-4F QOL-6F QOL-8F QOL-12F QOL-16F QOL-20F QOL-30F QOL Load Center
QOL series Load Centers have been designed for safe, reliable distribution and control of electrical power as service entrance equipment in residential, commercial and light industrial premises for indoor applications.
♦ Made out of high quality steel sheet of up to 0.6-1.2mm thickness.
♦ Matt-finish polyester powder coated paint.
♦ Knockouts provided on all sides of the enclosures.
♦ Accept Square D type plug in circuit breakers.
♦ Suitable for AC 60Hz, rated voltage up to 240V, rated current 100A-125A.
♦ Wider enclosure offers ease or wiring and move heat dissipation.
♦ Flush and Surface mounted designs.
♦ Knockouts for cable entry are provided on top, bottom of the enclosure.  

Part Number Type Spaces Rated Current Voltage
QOL-1F Flush 1 100A 120/240V (1Phase)
QOL-2F Flush 2 100A 120/240V (1Phase)
QOL-2FNT Flush 2 100A 120/240V (1Phase)
QOL-4F Flush 4 100A 120/240V (1Phase)
QOL-6F Flush 6 125A 120/240V (1Phase)
QOL-8F Flush 8 125A 120/240V (1Phase)
QOL-12F Flush 12 125A 120/240V (1Phase)
QOL-16F Flush 16 125A 120/240V (1Phase)
QOL-20F Flush 20 125A 120/240V (1Phase)
QOL-1S Surface 1 100A 120/240V (1Phase)
QOL-2S Surface 2 100A 120/240V (1Phase)
QOL-2SNT Surface 2 100A 120/240V (1Phase)
QOL-4S Surface 4 100A 120/240V (1Phase)
QOL-6S Surface 6 125A 120/240V (1Phase)
QOL-8S Surface 8 125A 120/240V (1Phase)
QOL-12S Surface 12 125A 120/240V (1Phase)
QOL-16S Surface 16 125A 120/240V (1Phase)
QOL-20S Surface 20 125A 120/240V (1Phase)


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After-sales Service: 24 Hour
Warranty: 3year
Display: Indicator
Installation: Direct Connected
Usage: Multi-Functional Energy Meter, Watt-Hour Meter, Meter for Industry and Home Use, Standard Electric Energy Meter, Prepayment Meter, Reactive Energy Meter, Multi-rate Watt-hour Meters, Maximum Demand Meter
Electric Equipment: Single-phase
US$ 1/Piece
1 Piece(Min.Order)




nema base

What are the signs that indicate a need for NEMA base replacement or upgrade, and how can they be diagnosed?

Knowing the signs that indicate a need for NEMA base replacement or upgrade is crucial for maintaining the safety and functionality of electrical systems. Here are some common signs to look out for and diagnostic methods to assess the condition of a NEMA base:

  • Physical Damage: Physical damage to the NEMA base, such as cracks, dents, or corrosion, can compromise its structural integrity and environmental protection capabilities. Visual inspection is the primary diagnostic method to identify physical damage. Regularly inspect the NEMA base for any signs of visible damage and assess the severity of the damage to determine if replacement or repair is necessary.
  • Inadequate Environmental Sealing: If the NEMA base fails to provide adequate environmental sealing, it can result in the ingress of dust, moisture, or other contaminants that can damage the enclosed electrical components. Signs of inadequate sealing include the presence of moisture or foreign particles inside the enclosure, corrosion on the components, or abnormal operation of sensitive equipment. Visual inspection and environmental testing can help diagnose the sealing integrity of the NEMA base.
  • Insufficient Heat Dissipation: Inefficient heat dissipation can lead to overheating of electrical components, reduced performance, or premature failure. Signs of inadequate heat dissipation include excessive heat buildup inside the enclosure, frequent overheating of components, or thermal shutdowns. Monitoring and analyzing temperature levels using thermal imaging, temperature sensors, or infrared thermometers can help diagnose heat dissipation issues in the NEMA base.
  • Compromised Electrical Connections: Loose or damaged electrical connections within the NEMA base can lead to power interruptions, voltage drops, or electrical faults. Signs of compromised connections include intermittent power supply, flickering lights, or abnormal voltage readings. Conducting regular electrical inspections, including visual examination and electrical testing, can help diagnose connection issues within the NEMA base.
  • Obsolete Design or Technology: Outdated NEMA base designs or technologies may lack compatibility with modern electrical components or fail to meet current safety standards. Additionally, advancements in NEMA base features and functionalities, such as improved environmental protection or better cable management options, may warrant an upgrade. Regularly staying informed about industry advancements and comparing the capabilities of existing NEMA bases with newer models can help determine if an upgrade is necessary.
  • Non-compliance with Safety Standards: NEMA bases must comply with safety standards and codes to ensure the protection of personnel and equipment. If the NEMA base no longer meets the required safety standards, it may need to be replaced or upgraded. Regular safety inspections, including compliance checks with relevant standards, can help diagnose safety-related issues in the NEMA base.

It’s important to note that diagnosing the need for NEMA base replacement or upgrade may require a combination of visual inspection, environmental testing, electrical testing, temperature monitoring, and compliance checks. It is recommended to consult with qualified professionals, such as electricians or engineers, who have expertise in evaluating NEMA bases and electrical systems, to accurately diagnose any issues and determine the appropriate course of action.

nema base

What factors should be considered when selecting a NEMA base for different electrical enclosures?

When selecting a NEMA base for different electrical enclosures, several factors should be taken into consideration to ensure the proper fit and functionality. Here are the key factors to consider:

  • Enclosure Size and Dimensions: The size and dimensions of the electrical enclosure are crucial factors when selecting a NEMA base. The base should match the dimensions of the enclosure to ensure a proper fit. Consider the available space inside the enclosure and the required clearance for mounting electrical components.
  • Environmental Conditions: Evaluate the environmental conditions in which the enclosure will be installed. Consider factors such as temperature extremes, moisture, dust, chemicals, and corrosive substances. Choose a NEMA base with an appropriate environmental rating that provides adequate protection against these conditions.
  • Material Selection: Select the material of the NEMA base based on the specific requirements of the application. Common materials include aluminum, steel, stainless steel, and non-metallic options like polycarbonate or fiberglass. Consider factors such as durability, corrosion resistance, insulation properties, and compatibility with the environment.
  • Mounting Options: Assess the mounting options provided by the NEMA base and ensure compatibility with the enclosure and the electrical components to be installed. Consider factors such as mounting flanges, brackets, holes, adjustable feet, or other accessories required for proper installation and secure mounting.
  • Accessory Compatibility: Determine if the NEMA base offers compatibility with accessories and additional components needed for the specific electrical enclosure. Consider accessories such as cable entry glands, ventilation fans, filters, shelves, DIN rails, or mounting plates. Ensure that the base has the necessary features or provisions for installing these accessories.
  • Certification and Compliance: Check if the NEMA base meets the required certifications and compliance standards for the application. Depending on the industry and regulatory requirements, certain certifications such as UL Listed, CSA certified, or ATEX certification may be necessary. Ensure that the base aligns with the applicable safety and compliance standards.
  • Customization Options: Evaluate if the NEMA base allows for customization to meet specific needs. Some applications may require modifications to the base’s dimensions, cutouts, or mounting hole patterns. Consider if the manufacturer offers customization options to ensure a perfect fit within the electrical enclosure.

By considering these factors, you can select a NEMA base that matches the requirements of the electrical enclosure, provides suitable environmental protection, ensures proper mounting of electrical components, and complies with relevant standards and regulations.

nema base

Can you describe the specific standards and ratings associated with NEMA bases?

NEMA bases are subject to specific standards and ratings that define their characteristics and capabilities. Here’s a detailed description of the specific standards and ratings associated with NEMA bases:

1. NEMA Standards:

The National Electrical Manufacturers Association (NEMA) sets the standards for electrical enclosures, including NEMA bases. These standards define the performance, construction, and environmental capabilities of the enclosures. The most commonly referenced NEMA standards for enclosures and bases include:

  • NEMA 250: Enclosures for Electrical Equipment (Indoor/Outdoor)
  • NEMA 3: Enclosures for Outdoor Use
  • NEMA 4: Watertight and Dust-tight Enclosures
  • NEMA 4X: Corrosion-resistant Enclosures
  • NEMA 12: Industrial Use Enclosures
  • NEMA 13: Oil-tight and Dust-tight Enclosures

2. NEMA Ratings:

NEMA bases are assigned specific ratings that indicate their level of protection against environmental hazards. The NEMA ratings are standardized and provide a common reference for understanding the capabilities of the base. The most commonly used NEMA ratings for bases include:

  • NEMA 1: General Purpose – Provides basic protection against dust and incidental contact, but not water.
  • NEMA 2: Drip-tight – Provides protection against dripping water and limited dust ingress.
  • NEMA 3: Weather-resistant – Provides protection against windblown dust, rain, sleet, and external ice formation.
  • NEMA 3R: Rain-tight – Provides protection against rain, sleet, and external ice formation, but not dust.
  • NEMA 4: Watertight – Provides protection against water spray, hose-directed water, and limited dust ingress.
  • NEMA 4X: Corrosion-resistant – Provides the same level of protection as NEMA 4, with additional resistance to corrosion.
  • NEMA 6: Submersible – Provides temporary protection against water immersion up to a specified depth.
  • NEMA 6P: Submersible – Provides prolonged protection against water immersion up to a specified depth.
  • NEMA 12: Industrial Use – Provides protection against dust, falling dirt, and dripping non-corrosive liquids.
  • NEMA 13: Oil-tight – Provides protection against dust, spraying of oil, and non-corrosive coolants.

3. Additional Ratings:

In addition to NEMA standards and ratings, there are other specifications and certifications that may be relevant to NEMA bases depending on specific applications. These additional ratings include:

  • UL Listed: Indicates that the NEMA base has been tested and certified by Underwriters Laboratories, meeting specific safety and performance requirements.
  • IEC IP Ratings: The International Electrotechnical Commission (IEC) IP (Ingress Protection) ratings are an alternative set of ratings that specify the degree of protection provided against solids and liquids.
  • ATEX Certification: Required for NEMA bases used in potentially explosive atmospheres in the European Union, as defined by the ATEX Directive.
  • CSA Certification: Indicates compliance with Canadian safety standards, as certified by the Canadian Standards Association.

It’s important to note that the specific standards and ratings associated with NEMA bases can vary depending on the intended use, industry requirements, and regional regulations. Consulting the appropriate standards and working with reputable suppliers can ensure the selection of NEMA bases that meet the necessary standards and ratings for a given application.

China wholesaler Qol16f 16way ANSI Load Center 125A 120/240V  China wholesaler Qol16f 16way ANSI Load Center 125A 120/240V
editor by CX 2024-04-03