# TB, POWER DISTRIBUTION, 3POLE, 250KCMIL

![Product image](https://novapart.co/image/farnell:2500492/)

**URL**: https://novapart.co/products/1433123/tb-power-distribution-3pole-250kcmil
**SKU**: 1433123
**Manufacturer**: MARATHON SPECIAL PRODUCTS
**Category**: Connectors || Terminal Blocks & Accessories || Power Distribution Blocks
**Price**: €99.9400
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| No. Of Poles | 3 Pole |
| Rated Current | 255A |
| Rated Voltage | 600V |
| Line Side Connection Method | Screw |
| Load Side Connection Method | Screw |
| Line Side Connections Per Pole | 1 |
| Load Side Connections Per Pole | 1 |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:2500492/)

## Product Data Sheet 

143X123 Replace “x” with 1, 2, or 3 for number of poles 

Power Terminal Block 

## 255 Amps  600 Volts AC/DC 

## Wire Range 

- Line:    (1) 250 kcmil - #6 AWG 

- Load: (1) 250 kcmil - #6 AWG 

## Electrical Ratings 

- 255 Amps 

- 600V per UL 1059 & CSA 22.2 No.158, class B & C requirements 

- CU7AL  - 75°C connector terminal rating with copper or aluminum wire 

- Factory & Field Wiring 

## Agency Compliance 

- UR - UL Recognized Terminal Block, Evaluated to UL 1059, File No.XCFR2.E62806 

- CSA - certifed to C22.2 No. 158, File No. LR19766 (wire classes B & C only) 

- CE compliant to IEC 60947-7-1 

## Material Information 

- Insulator base: 

   - Phenolic 

   - Flammability rating of insulator base UL94V0 

   - Insulator base temperature rating: -40°C to 150°C (UL RTI) 

- Connector: aluminum, tin plated 

- Terminal set screws: aluminum, tin plated 

- Connector mounting screws: steel, zinc plated 

- RoHS compliant 

A Regal Brand 

1 

www.marathonsp.com 

## Termination Specifications 

**==> picture [509 x 178] intentionally omitted <==**

**----- Start of picture text -----**<br>
Wire Size Wires /<br>Line & load Side Torque Wire Class (UL)  [1]<br>(CU Stranded) Terminal<br>a ee eeee<br>250 kcmil 31.1 N·m (275 lbf·in) 1 B, C<br>4/0 31.1 N·m (275 lbf·in) 1 B, C, G, H<br>ee ee ee<br>3/0 - 2 31.1 N·m (275 lbf·in) 1 B, C, G, H, I (DLO)<br>a ee<br>O | [a]<br>4 - 6 31.1 N·m (275 lbf·in) 1 B, C<br>a eeee<br>•  Aluminum wire range: 250kcmil - #6 AWG<br>**----- End of picture text -----**<br>


- Wire strip length: 

   - line & load side taps: 1 1/16 in. (27mm) 

- Terminal screw drive: 5/16 in. hex 

1 For information on copper stranded wire classes please visit: http://www.marathonsp.com/flexible-stranded-wire.php 

## Installation & Accessories 

- Mounting (Panel): 

   - For use with #10 fastener. 

   - Mounting Torque to be determined in end use application not to exceed 30 lbf-in (3.4 N-m) 

- Covers: 

   - Flat covers available upon request 

   - Catalog Number: CC143x (replace “x” with number of poles) 

   - Covers are clear polycarbonate 

   - Accessory covers are not intended to provide insulation for electrical spacings. 

- Marker Strip:  white vinyl strip with mounting screws available. 

- Printing options available, consult customer service for specifications. 

2 

www.marathonsp.com 

PDS 0060 REV-D 01/27/19 

## SCCR With Fuses 

|Wire<br>Type|Suitable Conductors|Suitable Conductors|Max Overcurrent Proctection Fuse Required<br>AmpRating/Class|Max Overcurrent Proctection Fuse Required<br>AmpRating/Class|Max Overcurrent Proctection Fuse Required<br>AmpRating/Class|Max Overcurrent Proctection Fuse Required<br>AmpRating/Class|Max Overcurrent Proctection Fuse Required<br>AmpRating/Class|Max Overcurrent Proctection Fuse Required<br>AmpRating/Class|SCCR RMS<br>Sym Amps<br>600V Max|
|---|---|---|---|---|---|---|---|---|---|
||Line|Load|J|T|RK1|RK5|G|CC||
|B,C|250 - 6|250 - 6|300|300|200|100|60|30|100,000|
|G,H,I|3/0 - 1/0|3/0 - 1/0|300|300|200|100|60|30|100,000|
|(*)|250 - 6|250 - 6|None||||||10,000|



## Drawing 

3 

www.marathonsp.com 

PDS 0060 REV-D 01/27/19 



## Links

- [View this product on Novapart](https://novapart.co/products/1433123/tb-power-distribution-3pole-250kcmil)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/en-ES/marathon-special-products/1433123/tb-power-distribution-3pole-250kcmil/dp/2500492)
---

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