Overview
The Hoffman 88LSGQR 19390 is a lay-in oil-tight wireway engineered for industrial electrical installations requiring reliable cable management and environmental protection. This steel wireway combines UL 870 listing with an oil-tight design, making it ideal for manufacturing floors, control rooms, and facilities where contamination or moisture protection is critical. The lay-in design allows conductors to be routed directly into the wireway without the need to “pull through,” reducing installation time and labor costs.
Key Features
- Oil-Tight Design — Seals out industrial oils and contaminants for long cable life and reduced maintenance
- Lay-In Configuration — Top-hinged cover design allows cables to be laid in without pulling, speeding installation
- UL 870 Listed — Meets UL 870 and NEMA Type 1 electrical standards for industrial enclosures
- Steel Construction — Durable painted steel with ANSI 61 gray polyester powder finish for corrosion resistance
- Connector System — U-connector joints enable seamless section-to-section connections while retaining lay-in accessibility
- Modular Accessories — Compatible with Hoffman fittings, reducers, barriers, and mounting hardware for custom runs
Technical Specifications
| Manufacturer | Hoffman (nVent) |
| Model Number | 88LSGQR 19390 |
| Product Type | Lay-In Oil-Tight Wireway |
| Material | Steel |
| Finish | ANSI 61 Gray Polyester Powder Paint |
| UL Listing | UL 870 Listed (File No. E27524) |
| NEMA Rating | NEMA Type 1 |
| Design Type | Lay-In with Hinged Top Cover |
| Connection Method | U-Connector Joints |
| CSA Rating | CSA File No. 42184, Type 1 |
Typical Applications
- Manufacturing Plants — Cable management in machine tool control areas exposed to industrial oils and coolants
- Control Rooms — Organized routing of instrumentation and control wiring in central electrical facilities
- Power Distribution — Secondary conductor runs in substations and switchgear areas
- Equipment Rooms — Cable protection in mechanical rooms with splash or contamination risk
- Panel Wiring — Internal or external raceway system for large control panel installations
Compatibility & Replacements
Compatible With
- Hoffman (nVent) lay-in wireway fittings and accessories
- Standard U-connector joint systems
- Hoffman reducer bushings and transition fittings
- Drop hangers and bracket support systems
- Sealing gasket and barrier kits from Hoffman
Replaces / Drop-In Replacement For
- Verify compatibility with your system integrator or Hoffman directly for specific model cross-references
Works With
- All standard power and control conductors (NM, THHN, XHHW, etc.)
- Communication and instrumentation cables
- Hoffman wireway U-connectors, fittings, and closure plates
- Industrial electrical installation standards (NEC, NFPA 70)



