Eaton Crouse-Hinds ES31 SG Sealing Hub - Class I, Division 1
Part Number: ES31 SG
Quick Summary
The ES31 SG sealing hub from Eaton Crouse-Hinds is designed to seal conduit hubs in hazardous locations. End users often struggle to maintain reliable seals in explosive environments while meeting strict NEC/CEC requirements. It carries Class I Division 1 (and Division 2) ratings for hazardous locations and NEC/CEC compliance, with a rugged Feraloy iron alloy body. Pairing a 1/2" female hub with a 1" male hub, sealing gasket, and locknut, it enables faster, safer panel installation. With a compact footprint and included hardware, the ES31 SG supports easier mounting, reduces field adjustments, and helps maintain compliant safety margins across industrial installations.
Product Information
Extended Description
ES31 SG Eaton Crouse-Hinds: Eaton Crouse-Hinds series ES sealing hub, 1/2" female hub size, 1" male hub size, Feraloy iron alloy, Sealing gasket and locknut
Product Name
Eaton Crouse-Hinds series ES sealing hub
Catalog Number
ES31 SG
Product Length/Depth
1.56 in
Product Height
2 in
Product Width
1.56 in
Product Weight
0.41 lb
UPC
782274277028
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class I, Division 2
Female hub size
1/2"
Male hub size
1"
Material
Feraloy iron alloy
Special features
Sealing gasket and locknut
Crouse-Hinds series ES Explosionproof Conduit Sealing Hub and TSC Epoxy Sealing Compound catalog page
ES Explosionproof Conduit Sealing Hub and TSC Epoxy Sealing Compound Canadian certification
ES Explosionproof Conduit Sealing Hub and TSC Epoxy Sealing Compound Canadian certification
IF 1728 - ES Sealing Hubs
Eaton Specification Sheet - ES31 SG
Feature: Feraloy iron alloy body provides rugged, durable construction. Business Impact: Delivers long-term reliability and corrosion resistance in harsh environments, reducing maintenance and downtime. Application: Ideal for explosion-proof conduit fittings in chemical plants, oil refineries, and mining environments where safety-critical joints must endure heat and wear. Feature: Sealing gasket and locknut included. Business Impact: Ensures a tight, dependable seal out of the box, shortening installation time and lowering the risk of gasket failure. Application: Fast, reliable field installations in hazardous locations with minimal part handling. Feature: 1/2" female hub size and 1"–inch male hub size. Business Impact: Clear conduit sizing compatibility reduces the need for adapters and potential leakage points. Application: Connects to common 1/2" conduits entering enclosures rated for hazardous locations. Feature: Compact footprint (1.56 in length/width) and 2 in height with 0.41 lb weight. Business Impact: Space-efficient design enables denser panel layouts and easier handling during installation. Application: Control panels with tight clearances in industrial automation settings. Feature: NEC/CEC compliance and Class I, Division 1/Division 2 ratings. Business Impact: Eases regulatory approvals and enhances risk management for hazardous locations. Application: North American facilities requiring robust conformance to electrical codes in safety-critical environments.
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FAQs
The ES31 SG provides a 1/2" female hub and a 1" male hub, enabling direct connection between common conduit sizes without adapters. This simplifies panel wiring, reduces leakage paths, and speeds up installation in hazardous locations while maintaining NEC/CEC compliance.
The device carries NEC/CEC compliance with Class I, Division 1 (and Division 2) ratings for hazardous locations, and is intended for Hazardous/Classified Locations. This supports regulatory approvals and safer operation in potentially explosive environments.
Yes. The ES31 SG aligns with NEC/CEC standards and has hazard-location ratings suitable for Class I environments, which are commonly adopted in Canadian facilities requiring explosion-proof conduit sealing solutions.
The unit includes a sealing gasket and locknut, enabling a ready-to-install sealing solution. This reduces part counts and minimizes field adjustments, improving installation reliability in hazardous zones.
The hub measures 1.56 inches in length and width, stands 2 inches tall, and weighs 0.41 pounds. These compact specifications support space-efficient panel layouts and easier handling during installation.