The CSB70 is an empty NEMA/CSA Type 1 mild steel splitter box, 12 in high by 10 in wide by 4 in deep (305 x 254 x 102 mm), supplied without splitter blocks. It is the "less blocks" version of the 70/70 A (CU/AL) size in the CSB series, whose ordering table references splitter block CSBL125B for this enclosure. It suits electricians and panel builders who want the enclosure alone for an indoor distribution tap.
The CSB series is designed for indoor distribution of up to 600 A (max) service at 600 V max, using either 3 or 4 wires, with 75 °C conductor ampacity permitted. The same enclosure is offered as CSB73 with 3-wire splitter blocks and CSB74 with 4-wire splitter blocks.
The box is formed and spot welded from steel (the series uses 14 or 16 gauge; the 14 gauge note in the ordering table applies to the 600 A sizes). A hinged door is secured with a screw and provides a padlocking hasp, and a series of knockouts is provided on each side. The manufacturer drawing shows a 12.25 in x 10.25 in door, a 11.89 in x 9.75 in door opening, an overall depth of 4.06 in and back mounting holes spaced 9.00 in x 7.00 in. The enclosure and door are finished in ANSI 61 gray powder coating.
The series carries CSA Type 1 and complies with IEC 60529 IP20. The CSB70 is REACH and RoHS compliant, ships in a box and has a shipping weight of 7 lbs (3.18 kg). Splitter blocks and grounding kits are listed as series accessories.
| Series | CSB Series - Type 1 Mild Steel Splitter Box |
| Cover Type | Hinged door with screw |
| Application | Indoor distribution of up to 600 A (max) service (600 V max) using 3 or 4 wires (series) |
| Description | Empty Splitter Box - 12 x 10 x 4 - Steel/Gray |
| Configuration | Less blocks (empty, no splitter blocks) |
| Short Description | SPLITTER BOX 12X10X4, EMPTY |
| Series Accessories | Splitter Blocks, Grounding Kits |
| Depth | 4.00 in (102 mm) |
| Width | 10.00 in (254 mm) |
| Height | 12.00 in (305 mm) |
| Size (H X W X D) | 12 in x 10 in x 4 in (305 mm x 254 mm x 102 mm) |
| Door Size (Drawing) | 12.25 in H x 10.25 in W |
| Door Opening (Drawing) | 11.89 in H x 9.75 in W |
| Overall Depth (Drawing) | 4.06 in |
| Back Mounting Hole Spacing (Drawing) | 9.00 in x 7.00 in |
| 3 Wire Part No. | CSB73 |
| 4 Wire Part No. | CSB74 |
| Ampacity (CU/AL) | 70/70 A |
| Conductor Ampacity | 75 °C conductor ampacity permitted |
| Less Blocks Part No. | CSB70 |
| Series Maximum Service | 600 A max, 600 V max |
| Splitter Block Reference | CSBL125B |
| UPC | 623980779447 |
| UNSPSC | 39121324 |
| Part Number | CSB70 |
| Drawing Date | Mar. 23, 2019 |
| Packaging Type | Box |
| Shipping Weight | 7 lbs (3.18 kg) |
| Colour | Gray |
| Finish | ANSI 61 gray powder coating (enclosure and cover) |
| Locking | Padlocking hasp |
| Material | Mild steel |
| Knockouts | Series of knockouts on each side |
| Steel Gauge | 14 or 16 gauge (series; 14 gauge noted for 600 A sizes) |
| Construction | Formed and spot welded |
| Knockout Diameters (Drawing) | 0.88 in, 1.13 in, 1.38 in |
| Mounting Hole Diameter (Drawing) | 0.25 in |
| Enclosure Rating | CSA Type 1 |
| Ingress Protection | IEC 60529, IP20 |
| CSA | CSA Type 1 |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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No. The CSB70 is the less-blocks (empty) version. The ordering table references splitter block CSBL125B for this size; CSB73 and CSB74 are the 3-wire and 4-wire versions with factory installed blocks.
The ordering table rates this size at 70/70 A (CU/AL). The CSB series is designed for indoor service up to 600 A max at 600 V max, with 75 °C conductor ampacity permitted.
12 in H x 10 in W x 4 in D (305 x 254 x 102 mm). The drawing shows a 12.25 in x 10.25 in door and a 11.89 in x 9.75 in door opening.
Yes. The hinged door closes with a screw and includes a padlocking hasp.
The CSB series is designed for indoor distribution and carries CSA Type 1, complying with IEC 60529 IP20.
The same enclosure is offered as CSB73 with 3-wire splitter blocks and CSB74 with 4-wire splitter blocks.
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