Overview
The Appleton LB75-M is a Type LB Unilet conduit body manufactured by Appleton Electric (Emerson). This Form 35 model is engineered for use with 3/4-inch rigid or IMC conduit, providing 7.5 cubic inches of internal volume for conductor pulling and wiring connections. The LB75-M features malleable iron construction with electro zinc plating, dichromate, and epoxy powder coating for durability in demanding electrical installations.
Key Features
- Type LB Configuration: Back access opening with 2 hubs at 90-degree angles for efficient conduit routing
- Form 35 Malleable Iron: High tensile strength and ductility, high corrosion resistance, high impact and shock resistance
- Smooth Integral Bushing: Accurately tapped tapered threads ensure tight, rigid joints and excellent ground continuity
- Flat-Back Design: Ideal for mounting flush against surfaces
- Threaded Entry: Compatible with rigid and IMC conduit systems
- UL and CSA Certified: Approval UL 514A/514B, CSA C22.2
Technical Specifications
- Part Number: LB75-M
- Type: LB (Back Access)
- Trade Size: 3/4 inch
- Form Type: Form 35
- Internal Volume: 7.5 cubic inches
- Maximum Wire Size: 6 AWG
- Number of Hubs: 2
- Hub Configuration: 90-degree
- Material: Electro Zinc Plated Chromate Epoxy Powder Coated Malleable Iron
- Dimensions: 5.38 inch L x 2.31 inch H
- Cover Type: Screw-on
- Installation Method: Threaded (Rigid/IMC)
- Brand: Appleton (Emerson Electric)
Typical Applications
The Appleton LB75-M conduit body is suitable for:
- Industrial electrical installations using rigid or IMC conduit systems
- Commercial building wiring where conduit direction changes are needed
- Pulling fittings that allow bends in conduit runs without additional couplings
- Enclosure-mounted applications where flat-back design is required
- Environments requiring corrosion and impact resistance
- NEMA FB-1 enclosure applications
Compatibility & Replacements
Compatible With
- 3/4-inch rigid steel conduit (RMC)
- 3/4-inch intermediate metal conduit (IMC)
- Standard 3/4-inch FNPT conduit systems
- NEMA FB-1 enclosures
- Standard electrical grounding systems (tapered thread design ensures ground continuity)
Replaces / Drop-In Replacement For
- Appleton LB75 (standard aluminum version) where malleable iron durability is preferred
- Similar Type LB Form 35 conduit bodies from competitive manufacturers requiring equivalent 7.5 cu-in capacity
- Verify compatibility with original system specifications before substitution
Works With
- Rigid and IMC conduit systems per NEC standards
- UL 514A/514B certified conduit fittings and accessories
- CSA C22.2 compliant electrical installations in Canada
- Standard 6 AWG and smaller gauge copper or aluminum wire
- Conduit bodies, couplings, and elbows rated for 3/4-inch trade size
