The CST3403 is a 3-wire Type 1 mild steel splitter trough from the CST Series, rated 400/400 A (CU/AL) and measuring 36 x 10 x 6 in (914 mm x 254 mm x 152 mm). It comes with factory installed splitter blocks (reference CSBL400), giving electricians and contractors an enclosure ready for 3-wire distribution.
It is the 3-wire 400 A model at 36 in; the ordering table lists no 4-wire version at this size. The CST Series is designed for distribution of up to 600 A (max) service at 600 V max, using either 3 or 4 wires, and 75° C conductor ampacity is permitted. Related versions of this size in the ordering table: CST3400.
The trough is formed and spot welded from 14 gauge steel, with a hinged door secured with a screw, a padlocking hasp and a series of knockouts on each side. Cover and enclosure are finished in recoatable smooth ANSI 61 gray powder coating.
The part drawing shows an overall width of 10.25 in and overall depth of 6.98 in, a door opening of 34.75 in x 9.61 in, 0.25 in diameter back mounting holes on 33.00 in x 7.00 in centers and knockout diameters of 0.88, 1.13, 1.38 in. The series is CSA Certified and complies with IEC 60529, IP20. The CST3403 is REACH and RoHS compliant, ships in a box and weighs 36 lbs (16.33 kg).
| Series | CST Series - Hinged Door with Screw |
| Description | Splitter Trough, 400A - 36 x 10 x 6 - Steel/Gray |
| Product Type | Type 1 Mild Steel Splitter Trough |
| Configuration | 3 Wire |
| Splitter Blocks | Factory installed |
| Splitter Block Reference | CSBL400 |
| 3 Wire Part No. (This Size) | CST3403 |
| Less Blocks Part No. (This Size) | CST3400 |
| Depth | 6.00 in (152 mm) |
| Width | 10.00 in (254 mm) |
| Height | 36.00 in (914 mm) |
| Size (H X W X D) | 36 in x 10 in x 6 in (914 mm x 254 mm x 152 mm) |
| Door Opening (Drawing) | 34.75 in x 9.61 in |
| Overall Depth (Drawing) | 6.98 in |
| Overall Width (Drawing) | 10.25 in |
| Knockout Diameters (Drawing) | 0.88, 1.13, 1.38 in |
| Back Mounting Hole Centers (Drawing) | 33.00 in x 7.00 in |
| Back Mounting Hole Diameter (Drawing) | 0.25 in |
| CU/AL Amps | 400/400 A |
| Conductor Ampacity | 75° C conductor ampacity permitted |
| Series Application | Distribution of up to 600 A (max) service (600V max) using either 3 or 4 wires |
| UPC | 623980263441 |
| UNSPSC | 39121324 |
| Part Number | CST3403 |
| Short Description | SPLITTER TROUGH 36X10X6, 400A |
| Packaging Type | Box |
| Shipping Weight | 36 lbs (16.33 kg) |
| Door | Hinged door with screw |
| Finish | Recoatable smooth ANSI 61 gray powder coating (cover and enclosure) |
| Locking | Padlocking hasp |
| Material | 14 gauge steel (14 gauge when width is 8" or more) |
| Knockouts | Series of knockouts on each side |
| Construction | Formed and spot welded |
| Series Accessories | Splitter Blocks; Grounding Kits |
| Enclosure Type | Type 1 |
| Ingress Protection | IEC 60529, IP20 |
| CSA | CSA Certified |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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36 in x 10 in x 6 in (914 mm x 254 mm x 152 mm) (H x W x D). The drawing shows an overall width of 10.25 in and overall depth of 6.98 in.
The ordering table lists 400/400 A for copper/aluminum (CU/AL), with factory installed CSBL400 splitter blocks in a 3 wire configuration.
The ordering table lists CST3400 as the other versions of this size.
The CST3403 is 10 in wide and is formed and spot welded from 14 gauge steel (the series uses 16 gauge, or 14 gauge when width is 8 in or more).
Yes. It has a hinged door with screw and a padlocking hasp.
The CST Series is CSA Certified and complies with IEC 60529, IP20. The part is also REACH and RoHS compliant.
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