Description
RB400350 - Appleton - 4" x 3‑1/2" Threaded Malleable Iron Reducing Bushing
Appleton’s RB400350 is engineered to reduce conduit size from 4 inches to 3‑1/2 inches. Its solid build ensures a tight fit, efficient grounding, and wire protection. This is especially suitable for environments with high safety or durability demands.
GENERAL SPECIFICATIONS
- NEC/CEC Certifications and Compliances
- RB75-50 thru RB200-150 all materials: Class I, Division 1 and 2, Groups A, B, C, D; Class I, Zone 1 and, 2, Groups IIA, IIB, IIC; Class II, Division 1 and 2, Groups E, F, G; Class III
- NEC/CEC Certifications and Compliances
- RB-200-100 thru RB400-350: Class I, Division 1 and 2, Groups B, C, D; Class I, Zone 1 and 2, Groups IIA, IIB + H2; Class II, Division 1 and 2, Groups E, F, G; Class III
- Standard Material and Finishes
- Steel with zinc electroplate. Malleable iron with triple-coat finish (1) zinc electroplate, (2) chromate, and (3) epoxy powder coat. Aluminum with natural finish


