TMC3-075-1-NP | Eaton Crouse-Hinds series

The TMC3-075-1-NP is a high-quality cable gland from the Eaton Crouse-Hinds TMC3 series, meticulously engineered to provide secure and reliable terminations for armored and metal-clad cables in hazardous and industrial environments. The combination of the “-1” and “-NP” suffixes in the part number denotes specific material characteristics, which we’ll delve into to provide clarity.

Decoding the Part Number

Understanding the components of the part number helps to grasp the specific attributes of the TMC3-075-1-NP:

• TMC3: Indicates the series designed for terminating metal-clad (MC) and Teck armored cables, providing flameproof and environmental seals suitable for hazardous locations.
• 075: Denotes the 3/4″ NPT (National Pipe Thread) size, a standard in industrial conduit systems.
• -1: Typically signifies aluminum construction in Eaton’s nomenclature, offering a lightweight yet durable solution.
• -NP: Commonly stands for Nickel-Plated, which is often associated with brass components to enhance corrosion resistance.

Material Clarification

The combination of “-1” (aluminum) and “-NP” (nickel-plated) may seem contradictory since nickel plating is more commonly applied to brass. However, in this context, the TMC3-075-1-NP likely refers to a nickel-plated aluminum cable gland. Nickel plating aluminum can enhance its corrosion resistance and durability, especially in harsh environments.

Alternatively, there might be a possibility that “NP” indicates nickel-plated brass, and the “-1” in this case could refer to a specific design variant rather than the material.

Recommendation: Due to this potential ambiguity, it’s advisable to consult Eaton’s official datasheets or contact their technical support to confirm the exact material composition of the TMC3-075-1-NP to ensure it meets your application requirements.

Key Specifications

Assuming the TMC3-075-1-NP is a nickel-plated aluminum cable gland, the key specifications are as follows:

• Material: Nickel-Plated Aluminum
• Thread Size: 3/4″ NPT
• Armor Clamping Range: 0.660″ – 0.980″ (16.76 mm – 24.89 mm)
• Cable Clamping Range: 0.780″ – 1.110″ (19.81 mm – 28.19 mm)
• Ingress Protection Rating: IP66/IP67
  • IP66: Dust-tight and protected against powerful water jets
  • IP67: Protected against temporary immersion up to 1 meter
• Temperature Range: -50°C to +100°C (-58°F to +212°F)
• Certifications:
  • UL Listed and CSA Certified for use in:
    • Class I, Division 2 (Groups A, B, C, D)
    • Class II, Division 1 & 2 (Groups E, F, G)
    • Class III
  • ATEX and IECEx approved for use in:
    • Zone 1 and Zone 21 hazardous locations