P3000KO - 1-5/8" x 1-3/8", 12 Gage; Knock Outs
Unistrut's P3000KO (knock-out) is design for use in electrical raceway and support applications. It is UL listed and CSA listed for use as a strut-type channel raceway. The knock-outs are supplied attached to the strut and can be punched out in the field, as needed, for entry and exit of the wiring from the channel raceway.
This product is commonly used for lighting and other electrical applications. The channel can be used as both the raceway and support for the lighting, minimizing the material needs on the project and providing a clean, aesthetically pleasing installation.
Product dimensions are 1 5/8" wide x 1 3/8" tall x 12 ga. thick; with knock-outs. The knock-outs are 7/8" in diameter and 6" on center.
Our P3000KO is available in the following finishes: Pre-Galvanized (PG), Hot-Dip Galvanized (HG), Plain (PL) and Green (GR).
|Part No.||Length (ft)||Finish||Product Weight / Ft (lbs/ft)|
|Beam Loading - P3000KO|
Max Allow. Uniform Load
Deflection at Uniform Load
|Uniform Loading at Deflection||Lateral Bracing Reduction Factor|
|Column Loading - P3000KO|
Allowable Load at Slot Face
|Max Column Load Applied at C.G.|
|K=0.65 (lbs)||K=0.80 (lbs)||K=1.0 (lbs)||K=1.2 (lbs)|
Elements of Section
|Elements of Section - P3000KO|
|Area of Section||0.5 in2 (3.2 cm2)|
|Axis 1-1||Axix 2-2|
|Moment of Inertia (I)||0.12 in4 (5 cm4)||0.203 in4 (8.4 cm4)|
|Section Modulus (S)||0.153 in3 (2.5 cm3)||0.250 in3 (4.1 cm3)|
|Radius of Gyration (r)||0.489 in (1.2 cm)||0.638 in (1.6 cm)|
- 10 feet: 10' or 10’ 1/8” (3.05m) ± 1/8" (3 mm)
- 20 feet: 20' or 20’ 3/8” (6.11m) ± 1/8" (3 mm)
- Available with a tolerance of ±1/8" (3 mm). Request quote.
- Many Unistrut channel sections can be supplied with a curve. Click here for our ordering form, specifications, and instructions.
- All beam and column load data pertains to carbon steel and stainless steel channels.
- Load tables apply only to UNISTRUT brand channel. Look for "UNISTRUT" on the product.
- Load tables and charts are constructed to be in accordance with the SPECIFICATION FOR THE DESIGN OF COLD-FORMED STEEL STRUCTURAL MEMBERS 2007 EDITION published by the AMERICAN IRON AND STEEL INSTITUTE USING ASD METHOD.
- Loads are based on 33 ksi steel cold formed to 42 ksi.
- Safety Factor to Yield Strength is 1.67 for Beam Loads and 1.80 for Column Loads.
- Beam loads are based on a simple beam and are given as a total uniform load (W) in pounds. For proper calculation procedures, refer to our Beam Load Calculation Guide.
- For bearing loads, reference our Bearing Loads Page.
Materials & Finishes
Materials & Finishes - Standard:
- Pregalvanized (PG): Conforms to ASTM A653 SS GR 33, G90.
- Unistrut Defender (DF): Conforms to ASTM A1046 SS GR 33
- Hot Dip Galvanized (HG): Steel conforms to ASTM A1011 SS GR 33, Finish conforms to ASTM A123
- Perma-Green (GR): Steel conforms to ASTM A1011 SS GR 33, E-Coat finish
- Perma-Gold (ZD): Steel conforms to ASTM A1011 SS GR 33, Finish conforms to ASTM B633, Type II SC3
- Plain (PL): Conforms to ASTM A1011 SS GR 33
- Stainless Steel, Type 304 (SS): ASTM A240, Type 304 *
- Stainless Steel, Type 316 (ST): ASTM A240, Type 316 *
- Aluminum (EA): ASTM B221, Type 6063-T6 (Extruded) *
* These materials have different physical properties and performance characteristics. Please contact us for design support.