1 in. Insulated Grounding Bushing, Die-Cast Zinc | UL 514B | 3114-0001
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SKU: 3114-0001
1000 in stock
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CT 3114-0001 — 1" insulated grounding bushing, zinc die-cast body with a 150°C insulated throat and a lay-in grounding lug. Threads onto rigid, IMC, or EMT-connector ends inside the enclosure to bond the raceway and protect conductors at the entry. Direct cross for Bridgeport 383-DC, Arlington 452, O-Z/Gedney IBC-100L, and Appleton GIB-100L.
| Part No. | 3114-0001 |
|---|---|
| Trade size | 1 in (NPS thread) |
| Body / throat | Zinc die-cast, zinc plated / 150°C thermoplastic insulator |
| Grounding lug | Lay-in, dual-rated Cu/Al, 14 AWG–4 AWG |
| Listings | UL 514B (conduit fittings), UL 467 class grounding & bonding |
| Package | Each; 1,000 on hand |
Cross-reference
| Manufacturer | Part No. |
|---|---|
| Bridgeport | 383-DC |
| Arlington | 452 |
| O-Z/Gedney (Emerson) | IBC-100L series (IBC-100L-4AC) |
| Appleton (Emerson) | GIB-100L series (GIB-100L-4AC) |
Crosses identify insulated grounding bushings of the same trade size and lug class; malleable-iron bodies (O-Z/Gedney, Appleton) and die-cast bodies (Bridgeport, Arlington, CT) are interchangeable in ordinary locations.
Where it's required
- Every metal raceway landing at service equipment — NEC 250.92(B)
- Raceways in concentric or eccentric knockouts on circuits over 250 V to ground — NEC 250.97
- Conductors 4 AWG and larger entering an enclosure — insulated throat per NEC 300.4(G)
How to install
Thread the bushing onto the conduit or connector end inside the enclosure after the locknut, hand-tight plus a quarter turn with a wrench on the flats. Lay the bonding jumper (Table 250.102(C)(1) at services, Table 250.122 elsewhere) into the lug, torque the lug screw, and bond to the enclosure ground bus. Code basis and sizing: Grounding Accessories and the NEC.
Complete the run — 1 in.
Connector · Coupling · Locknut · Bushing · One-hole strap · Hanger
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Engineered in the USA. Our U.S.-based engineering team designs and specifies our core product lines, and every product we carry — designed in-house or built to our exact specifications by certified partner factories — is quality-verified before it ships. UL/CSA listed where required, NEC compliant.
Cross-reference savings. Direct equivalents to Burndy, Hubbell, and other OEM part numbers at up to 30% less — same specs, same certifications, without the big-brand markup.
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