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China, Chinese Malleable Iron Insulated Grounding Bushing Insulated Rigid Conduit Bushing with Screw Holes1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Pipe FittingsBushingRigid Conduit BushingInsulated Conduit Bushing
HEFEI ELECMAN ELECTRICAL CO., LTD.
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Product Description Malleable Iron Insulated Grounding Bushing Insulated Rigid Conduit Bushing with Screw HolesProduct DescriptionELECMAN? UL Certificate Malleable Iron Insulated Rigid Conduit Bushing with Screw HolesProduct Introduction It is a heavy-duty protective sleeve that screws onto the end of a rigid metal electrical conduit pipe. Its primary job is to create a safe, smooth entry point for electrical wires into a panel, junction box, or other enclosure, protecting them from damage.The ELECMAN? Malleable Iron Insulated Rigid Conduit Bushing with Screw Holes is a heavy-duty, code-compliant electrical fitting designed to:Protect wire insulation from abrasion.Prevent ground faults by providing an insulating barrier.Lock securely onto conduit via a setscrew.Be used in commercial/industrial settings with large wires and rigid metal conduit.It is a critical component for ensuring a safe and reliable electrical installation.FeaturesThe features of the ELECMAN? Malleable Iron Insulated Rigid Conduit Bushing with Screw holes are engineered for superiorperformance, safety, and durability in demanding electrical environments.1. Malleable Iron ConstructionHigh Strength & Durability: Made from rugged malleable iron, this bushing is built to withstand physical impact, crushing forces, and rough handling in industrial and commercial environments. It is much stronger than plastic or aluminum bushings.Corrosion Resistance: Malleable iron is typically coated with a corrosion-resistant finish. This protects the fitting from rust and corrosion, making it suitable for use in both indoor and outdoor applications.2. Integrated Insulating LinerAbrasion Protection: The most critical feature is the built-in nylon or plastic liner. This liner has a smooth, funnel-shaped opening that protects wire insulation from the sharp, cut edges of the rigid metal conduit during wire pulling.Ground Fault Prevention: The liner acts as an insulating barrier, preventing the conductors from coming into contact with the metal bushing and conduit. This is essential for safety and is required by electrical code when using large wires.3. Locking Setscrew(s)Vibration Resistance: The integrated screw holes allow for one or two setscrews (lock screws) to be tightened against the conduit threads after installation. This prevents the bushing from loosening due to vibration, thermal expansion/contraction, or accidental contact, ensuring a permanent and secure connection.4. Standardized ThreadingPrecise Fit: The bushing features standardized (NPT) national pipe taper threads that are precisely cut to match standard rigid conduit (RMC) and intermediate metal conduit (IMC). This ensures a tight, secure fit onto the conduit without cross-threading.Easy Installation: The tapered threads allow the bushing to be easily started and hand-tightened before final securing with the setscrew.5. Code ComplianceNEC Compliance: This bushing is specifically designed to meet the requirements of National Electrical Code (NEC) section 300.4(G), which mandates the use of an insulating bushing to protect conductors #4 AWG and larger from abrasion at raceway terminations. Using this product ensures the installation is code-compliant.6. Wide Application RangeVersatility: Its robust construction makes it suitable for a wide range of applications, including:Commercial and industrial electrical systemsService entrances and main panelsHazardous locationsOutdoor and wet locations (when properly rated)Application The application of the ELECMAN? Malleable Iron Insulated Rigid Conduit Bushing with Screw holes is highly specific and critical for safe and code-compliant electrical installations. It is used in demanding environments where safety, durability, and reliability are non-negotiable.1. Code-Mandated Use (NEC Compliance)The most critical application is to fulfill the requirements of the National Electrical Code (NEC).2. Specific Use Cases and EnvironmentsThis heavy-duty bushing is applied in a wide range of commercial, industrial, and utility settings.3. Problem It Solves: Vibration ResistanceThe "screw holes" (locking setscrews) feature is applied in situations where vibration or accidental impact could cause a standard bushing to loosen over time, compromising the connection and safety.Product ParametersCATALOG NUMBERTRADE SIZEMASTER PACKWEIGHT/C VOLUME/CHGB0501/2"50011.50 0.011 HGB0753/4"50016.00 0.014 HGB1001"30014.00 0.014 HGB1251-1/4"20013.70 0.014 HGB1501-1/2"20015.00 0.016 HGB2002"12514.20 0.017 HGB2502-1/2"10018.50 0.018 HGB3003"6013.80 0.017 HGB3503-1/2"6015.50 0.018 HGB4004"6018.00 0.029 HGB5005"107.50 0.009 HGB6006"1080.013
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