Cut Sheet

Class I, Groups A, B, C, D
Class II, Groups E, F, G
Class III
Threaded Rigid Conduit and IMC Reducers
Catalog Number Size (Inches) Wt. Lbs/Kgs. Per 100 Catalog Number Size (Inches) Wt. Lbs/Kgs. Per 100
Reducing Bushings — Steel Reducing Bushings — Aluminum
RB50-13 *
†
1/2 — 1/8 1.50/0.7 RB50-13A *
‡
1/2 — 1/8 0.50/0.20
RB50-25 *
†
1/2 — 1/4 2.00/0.9 RB50-25A *
‡
1/2 — 1/4 0.70/0.30
RB50-38 *
†
1/2 — 3/8 2.70/1.2 RB50-38A *
‡
1/2 — 3/8 0.90/0.40
RB75-50
†
3/4 — 1/2 6.00/2.7 RB75-50A
‡
3/4 — 1/2 2.30/1.00
RB100-50
†
1 — 1/2 13.80/6.3 RB100-50A
‡
1 — 1/2 6.80/3.10
RB100-75
†
1 — 3/4 8.00/3.6 RB100-75A
‡
1 — 3/4 3.50/1.60
RB125-50 1-1/4 — 1/2 29.00/13.2 RB125-50A 1-1/4 — 1/2 9.20/4.20
RB125-75 1-1/4 — 3/4 23.00/10.4 RB125-75A 1-1/4 — 3/4 7.30/3.30
RB125-100 1-1/4 — 1 17.00/7.7 RB125-100A 1-1/4 — 1 6.00/2.70
RB150-50 1-1/2 — 1/2 39.00/17.7 RB150-50A 1-1/2 — 1/2 14.20/6.40
RB150-75 1-1/2 — 3/4 35.00/15.9 RB150-75A 1-1/2 — 3/4 12.80/5.80
RB150-100 1-1/2 — 1 31.00/14.1 RB150-100A 1-1/2 — 1 12.00/5.40
RB150-125 1-1/2 — 1-1/4 16.50/17.5 RB150-125A 1-1/2 — 1-1/4 6.50/2.90
RB200-50 2 — 1/2 68.00/30.8 RB200-50A 2 — 1/2 29.00/13.20
RB200-75 2 — 3/4 64.00/29.0 RB200-75A 2 — 3/4 26.50/12.00
RB200-100 2 — 1 57.00/25.9 RB200-100A 2 — 1 23.60/10.70
RB200-125 2 — 1-1/4 45.00/20.4 RB200-125A 2 — 1-1/4 18.70/8.50
RB200-150 2 — 1-1/2 38.00/17.2 RB200-150A 2 — 1-1/2 16.00/7.30
Reducing Bushings — Malleable Iron RB250-100A 2-1/2 — 1 27.00/12.20
RB250-100 2-1/2 — 1 75.00/34.0 RB250-125A 2-1/2 — 1-1/4 28.10/12.7
RB250-125 2-1/2 — 1-1/4 78.00/35.4 RB250-150A 2-1/2 — 1-1/2 82.00/37.2
RB250-150 2-1/2 — 1-1/2 82.00/37.2 RB250-200A 2-1/2 — 2 20.00/9.1
RB250-200 2-1/2 — 2 56.00/25.4 RB300-100A 3 — 1 46.80/21.2
RB300-100 3 — 1 130.00/59.0 RB300-125A 3 — 1-1/4 48.60/22.0
RB300-125 3 — 1-1/4 135.00/61.2 RB300-150A 3 — 1-1/2 51.10/23.2
RB300-150 3 — 1-1/2 142.00/64.4 RB300-200A 3 — 2 51.00/23.1
RB300-200 3 — 2 126.00/57.2 RB300-250A 3 — 2-1/2 35.00/15.9
RB300-250 3 — 2-1/2 83.00/37.6 RB350-200A 3-1/2 — 2 55.80/25.3
RB350-200 3-1/2 — 2 155.00/70.3 RB350-250A 3-1/2 — 2-1/2 57.40/26.0
RB350-250 3-1/2 — 2-1/2 164.00/74.4 RB350-300A 3-1/2 — 3 42.00/19.1
RB350-300 3-1/2 — 3 92.00/41.7 RB400-200A 4 — 2 59.40/26.9
RB400-200 4 — 2 165.00/74.8
RB400-250A 4 — 2-1/2 60.90/27.6
RB400-250 4 — 2-1/2 245.00/65.8 RB400-300A 4 — 3 77.50/35.2
RB400-300 4 — 3 174.00/78.9 RB400-350A 4 — 3-1/2 50.00/22.7
RB400-350 4 — 3-1/2 106.00/48.1 RB500-350A
‡
5 — 3-1/2 64.80/29.4
RB500-350
‡
5 — 3-1/2 180.00/81.6 RB500-400A
‡
5 — 4 68.40/31.0
RB500-400
‡
5 — 4 190.00/86.2 RB600-400A
‡
6 — 4 69.10/31.3
RB600-400
‡
6 — 4 192.00/87.1 RB600-500A
‡
6 — 5 70.20/31.8
RB600-500
‡
6 — 5 195.00/88.5
* UL Recognized.
 Suitable for Class I, Group A in addition to Class I Groups B, C, D; Class II, Groups E, F, G; and Class III.
‡ Class I, Groups C,D; Class II, Groups E,F,G; Class III.
Applications
• RB reducing bushings are designed to reduce conduit entriesto
a smaller size and are used in threaded rigid and IMC conduit
systems.
Features
• Smooth rounded integral bushing protects conductor insulation
• Full machine tapered threads ( NPT)
Standard Materials
• Steel, malleable iron or copper free aluminum
Standard Finish
• Steel: zinc electroplate
• Malleable iron: zinc electroplate, chromate and epoxy powder
coat
• Aluminum: natural
Compliances and Certifications
• UL Standard: 886 (1203)
• UL Listed: E10444
• CSA Standard: C22.2 No. 25, C22.2 No. 30
• CSA Certifi ed: 065181
Options
• Urathane paint available. Add suffi x -UP to catalog number.
Fittings
FITTINGS: HAZARDOUS CONDUIT FITTINGS
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© November 2011
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