Eaton TECK300 21S Cable Gland - Hazardous Locations
Part Number: TECK300 21S
Quick Summary
TECK300 21S cable gland provides secure, armored termination for TECK cables used in hazardous industrial environments. Many practitioners struggle with sealing integrity, awkward installation steps, and regulatory gaps when terminating armored wiring in Class II/III locations. This gland meets NEC/CEC standards and offers explicit area classification for Hazardous/Classified Locations, along with NEC ratings for Class II, Division 1 and Class III. The robust steel gland supports 3-inch NPT installations, matches TECK armored cable dimensions, and ensures a reliable seal under demanding conditions. By combining precise dimensions with proven material durability, it reduces maintenance downtime and lowers total cost of ownership for plants with hazardous atmospheres.
Product Information
Extended Description
TECK300 21S Eaton Crouse-Hinds: Eaton Crouse-Hinds series TECK cable gland, TECK armoured cable, Armoured gland, Steel, Outer sheath min/max: 3.21-3.48", General purpose, 3" NPT, Armor range min/max: 3.04-3.39"
Product Name
Eaton Crouse-Hinds series TECK cable gland
Catalog Number
TECK300 21S
UPC
782274117461
Product Length/Depth
6.4 in
Product Height
5.25 in
Product Width
5.25 in
Product Weight
4 lb
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class II, Division 1 Class III
NEMA Rating
4
Protection type
General purpose
Cable type
TECK armored
Gland type
Armoured
Material
Steel
Thread Size
3"
Thread type
NPT
Armor (min/max)
3.04-3.39"
Outer sheath (min/max)
3.21-3.48"
Crouse-Hinds series TECK catalog page
IF 1417 - TECK Cable Fittings
Eaton Specification Sheet - TECK300 21S
Feature → Business Impact → Application: Armoured steel construction delivers rugged protection against impact, environmental ingress, and abrasion, reducing field failures and maintenance labor while improving overall equipment availability for critical lines in mining, chemical processing, and heavy industry. Feature → 3" NPT threading enables rapid, standardized installation with broad compatibility across panels, enclosures, and TECK fittings, shortening commissioning times and minimizing installation errors in confined spaces. Feature → General purpose protection type supports versatile terminations, enabling a single gland to cover multiple cable families, which lowers inventory complexity and procurement costs on multi-site projects. Feature → Area classification for Hazardous/Classified Locations provides explicit regulatory alignment, easing audits and helping avoid costly regulatory delays during plant startups. Feature → NEC/CEC compliance and NEC hazardous ratings Class II, Division 1 and Class III deliver confidence during inspections and warranty coverage, improving risk management and downstream performance. Feature → Material steel ensures long-term durability in harsh environments, maintaining seal integrity and reducing replacement cycles as ambient conditions fluctuate. Feature → 3.04-3.39" armor and 3.21-3.48" outer sheath dimensions guarantee a precise fit for TECK armored cables, improving termination reliability and reducing leak paths.
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FAQs
Yes. TECK300 21S uses a 3" NPT thread size designed for standard conduit fittings and enclosures used with TECK armored cables. The gland’s dimensions align with common mounting footprints, enabling straightforward retrofits or new installations without special adapters. For best results, confirm enclosure inner diameter and mating gland interfaces prior to final torque tightening.
TECK300 21S carries NEC/CEC compliance for general electrical installations and hazardous locations. It supports Hazardous/Classified Locations with NEC Class II, Division 1 and Class III ratings and a NEMA 4 enclosure rating, ensuring protection against dust, water ingress, and corrosive environments typical in industrial plants.
In Class II, Division 1 environments, TECK300 21S provides robust sealing and mechanical protection for TECK armored cables. The steel armoured body resists impact, while the gasketed interface maintains integrity under vibration and dust exposure. This combination helps minimize ignition sources and supports safer, compliant operation.
Key specifications include a 3" thread size with NPT threading, armor range 3.04-3.39", outer sheath range 3.21-3.48", and a steel gland body. The protection type is general purpose, and the gland is designed for TECK armored cable. The unit weighs about 4 lb and is suitable for mounting in standard 3" NPT fittings.
TECK300 21S consolidates compliance, durability, and installation efficiency. Its certified ratings simplify audits, its steel construction reduces replacement cycles, and its precise dimensions ensure a reliable seal for armored cables. The result is reduced downtime, lower total cost of ownership, and smoother maintenance planning in mining, chemical processing, and other hazardous environments.