Cut Sheet

4000US Series Connectors
Application
• To ground and secure EMT raceways
to boxes and enclosures.
Features
• Made in the U.S.A.
• Heavy steel walls.
• Concretetight when taped.
• Pre-set/pre-staked set screws.
• Male hub threads — NPS.
• Available with insulated throat.
• Three-way combination screws 1/2” thru 2”.
• Hexhead screws 2-1/2” thru 4”.
• Insulated throat temperature rated 90 °C.
Material/Finish
• Steel/zinc plated
Certifications and Compliances
• UL Standard: 514B
• UL Listed: (1/2 - 2) E14815
• CSA Standard: C22.2 No. 18.3
• cUL Listed: (1/2 - 2) E14895, E14815
• NEMA: FB-1
4050US – 4200US
4250US – 4400US
Trade Size
(Inches) Catalog Number
Insulated Throat
Catalog Number
Dimensions in Inches/Millimeters
Body Length Maximum Diameter Thread Length
1/2 4050US 4050UST 1.16/29.5 1.00/25.4 0.38/9.7
3/4 4075US 4075UST 1.22/31.0 1.22/31.0 0.41/10.4
1 4100US 4100UST 1.50/38.1 1.50/38.1 0.44/11.2
1-1/4 4125US 4125UST 1.69/42.9 1.91/48.5 0.50/12.7
1-1/2 4150US 4150UST 1.91/48.5 2.16/54.9 0.53/13.5
2 4200US 4200UST 2.00/50.8 2.66/67.6 0.59/15.0
2-1/2 4250US 4250UST 2.63/66.8 3.75/95.3 1.25/31.8
3 4300US 4300UST 3.06/77.7 4.56/115.8 1.38/35.1
3-1/2 4350US 4350UST 3.06/77.7 5.69/144.5 1.41/35.8
4 4400US 4400UST 3.34/84.8 5.72/145.3 1.50/38.1
Commercial Products
COMMERCIAL PRODUCTS: EMT FITTINGS
Visit our website at www.appletonelec.com or contact us at [phone].
© September 2010
1582
Steel EMT Set Screw Connectors