TMC3-050-1-NP | Eaton Crouse-Hinds series

The TMC3-050-1-NP is a cable gland from the Eaton Crouse-Hinds TMC3 series, designed specifically for terminating armored and metal-clad cables in hazardous and industrial environments. Understanding the part number components can help clarify its specifications and suitability for your application.

Interpreting the Part Number

• TMC3: Represents the series of cable glands designed for hazardous locations, providing flameproof and environmental seals.
• 050: Indicates the 1/2″ NPT (National Pipe Thread) size, which is common for conduit and cable gland entries.
• -1: Typically denotes aluminum construction.
• NP: Commonly stands for Nickel-Plated, which is usually associated with brass components.

Material Clarification

There appears to be some ambiguity with the combination of “-1” (aluminum) and “NP” (nickel-plated):

• Nickel-Plated Aluminum: While nickel plating can be applied to aluminum, it is less common due to the challenges in plating over aluminum’s natural oxide layer. Specialized processes are required to ensure adhesion and durability.
• Standard Practice: In many cases, nickel plating is primarily applied to brass components to enhance their corrosion resistance and aesthetic appearance.
• Possible Scenarios:
  • Option 1: The TMC3-050-1-NP is an aluminum cable gland with a nickel-plated finish, combining lightweight properties with enhanced corrosion resistance.
  • Option 2: The “NP” suffix may indicate a nickel-plated brass component, suggesting that the “-1” could refer to a different specification in this context.

Key Specifications

Assuming the most accurate interpretation, the TMC3-050-1-NP features:

• Material: Potentially nickel-plated aluminum or nickel-plated brass
• Thread Size: 1/2″ NPT
• Cable Compatibility: Suitable for both armored and metal-clad cables
• Armor Clamping Range: 0.452″ – 0.660″ (11.48 mm – 16.76 mm)
• Cable Clamping Range: 0.500″ – 0.780″ (12.70 mm – 19.81 mm)
• Ingress Protection Rating: IP66/IP67, providing protection against dust and powerful water jets
• Temperature Range: -50°C to +100°C (-58°F to +212°F)
• Certifications:
  • UL Listed and CSA Certified for use in hazardous locations
  • ATEX and IECEx approvals for international compliance