ABB T&B Stainless Steel Grounding Hub — Model H125GRSST
The H125GRSST is a stainless steel grounding hub from ABB Thomas & Betts for use with 1-1/4 inch Rigid/IMC conduit. Its captive sealing ring is designed so it won’t buckle or slip during installation, delivering a complete 360-degree seal — even when conduit isn’t perpendicular to the enclosure. The unique sealing ring and groove design ensures optimum performance in demanding environments.
Key Features
- Captive sealing ring won’t buckle or slip during installation
- Complete 360-degree seal even when conduit is not perpendicular to the enclosure
- Unique sealing ring and groove design for optimum performance
- Suitable for hazardous locations: Class I, Division 2; Class II, Divisions 1 & 2; Class III, Divisions 1 & 2 per NEC 501-4(b), 502-4(a), and 503-3(a)
- Suitable for Class II Groups E, F, G and Class III locations per CEC 18-202, 18-252, 18-302, 18-352
Specifications
- Trade Size: 1-1/4 inch
- Material: Stainless Steel
- Connection Type: Threaded
- Outside Diameter: 2.38 in.
- Length: 1.88 in.
- Standards: UL E23018; CSA
- Manufacturer: ABB (Thomas and Betts)
- Model: H125GRSST
- UPC: 78621000281
Applications
Designed for grounding and bonding conduit hubs in industrial, commercial, and hazardous location installations. Suitable for use with Rigid and IMC conduit in environments requiring UL and CSA compliance.




