Overview
The Murray HV300M is a 3-inch Type HV conduit hub engineered for connecting rigid conduit and IMC (Intermediate Metal Conduit) to electrical load centers, service panels, and metering enclosures. As a Type HV hub, it provides a rain-tight, weather-resistant connection suitable for both indoor and outdoor electrical installations. Murray, now part of the Siemens electrical portfolio, manufactures conduit hubs to rigorous standards for reliable long-term performance in demanding environments.
Key Features
- 3-inch nominal size for standard rigid conduit connections
- Type HV designation ensures compatibility with specified load center designs
- Metallic construction for durability and electrical continuity
- Rain-tight, weather-resistant seal protects against moisture intrusion
- UL and CSA listed for code-compliant electrical installations
- Field-tested design for use with Siemens, Murray, and compatible panel systems
Technical Specifications
| Part Number | HV300M |
| Manufacturer | Murray (Siemens) |
| Size (Nominal) | 3 inch |
| Type | HV (Type HV Conduit Hub) |
| Conduit Connection | Rigid Conduit / IMC |
| Material | Metallic (Steel/Zinc Alloy) |
| Mounting | Surface Mount on Electrical Enclosure |
| Sealing | Rain-tight / Weather-resistant |
| Certifications | UL Listed, CSA Listed, ANSI Certified |
| Use | Electrical Panels, Service Equipment, Metering Enclosures |
Typical Applications
The Murray HV300M conduit hub is commonly used in:
- Main and sub-panel electrical installations
- Service entrance and meter base assemblies
- Industrial and commercial load centers
- Equipment enclosures requiring conduit entry
- Outdoor electrical installations where weather protection is critical
- Retrofit and replacement projects on existing Murray or Siemens panels
Compatibility & Replacements
Compatible With
- Siemens and Murray load centers accepting Type HV hubs
- Rigid Conduit (RMC) and Intermediate Metal Conduit (IMC)
- Standard 3-inch NPT threaded connections
- Electrical panels designed for HV-type hub entry
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. Type HV hubs must match the specific hub type specified for your panel model. Consult panel documentation or contact the manufacturer to confirm HV300M compatibility with legacy or current equipment.
Works With
- Siemens and Murray electrical panel systems
- Standard rigid conduit and IMC fittings
- UL/CSA-listed electrical installation materials and methods
- Code-compliant electrical systems (NEC Article 230, 250, 300)
