1343350

## **Product Data Sheet** 

## **POWER DISTRIBUTION BLOCK** 

134x350 Replace “x” with 1, 2, or 3 for number of poles 

## **Wire Range** 

- Line:    (2) 350kcmil - #6 

- Load: (2) 350kcmil - #6 

## **Electrical Ratings** 

- 620 Amps 

- 600V per UL 1953 

- Short circuit current ratings (SCCR): See SCCR section below for specifications 

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

- Factory & Field Wiring 

## **Agency Compliance** 

- cULus - UL Listed, investigated to UL 1953, UL File QPQS.E309401 and UL evaluated to CSA 22.2 No 158 File no. QPQS7.309401 

## Material Information 

- Insulator base: 

   - Thermoplastic 

   - Flammability rating of insulator base UL94V0 

   - Insulator base temperature rating: -40°C to 125°C (UL RTI) 

- Connector: aluminum, tin plated 

- Terminal set screws: aluminum, tin plated 

- Connector mounting screws: steel, zinc plated 

- RoHS compliant 

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## Product Data Sheet 

## **Termination Specifications** 

**Wire Size Wires / Line & Load Side Torque Wire Class (UL)[1] (CU Stranded) Terminal** 350 - 300 kcmil 31 N·m (275 lbf·in) 1 B, C ~~Seee~~ 250 kcmil - #2 31 N·m (275 lbf·in) 1 B, C, G, H, I (DLO) ~~ee~~ #4 - 6 31 N·m (275 lbf·in) 1 B, C ~~ee es~~ 

- Wire strip length: 1 in (25mm) 

- Terminal screw drive: 5/16 in. hex 

1 For information on copper stranded wire classes please visit: http://www.marathonsp.com/CatalogPDFs/Flexible-Stranded-Wire.php 

## **Short Circuit Current Ratings** 

- The suitable conductor ranges are limited to the table values only for achieving the SCCR in excess of the default rating of 10,000A. 

- Other conductor combinations within the “Terminal Specifications” noted are suitable for achieving a SCCR of 10,000A .  (the default rating of terminal blocks). 

- Enclosure size – For SCCR’s greater than the default of 10KA, the minimum enclosure size is 16x12x6. When using the default rating, there are no enclosure limitations other than proper fit of the product. 

|**Wire Class**|**Suitable Conductors**<br>**Copper, Stranded**|**Suitable Conductors**<br>**Copper, Stranded**|**Overcurrent Protection Fuse**<br>**Class/Max Amp Rating**|**Overcurrent Protection Fuse**<br>**Class/Max Amp Rating**|**Overcurrent Protection Fuse**<br>**Class/Max Amp Rating**|**Overcurrent Protection Fuse**<br>**Class/Max Amp Rating**|**Overcurrent Protection Fuse**<br>**Class/Max Amp Rating**|**Overcurrent Protection Fuse**<br>**Class/Max Amp Rating**|**SCCR, RMS**<br>**SYM Amps**|
|---|---|---|---|---|---|---|---|---|---|
||**Line**|**Load**|**J**|**T**|**RK1**|**RK5**|**G**|**CC**||
|**B-C**|350 - 4|350 - 4|500|500|400|200|60|30|100,000|
|**(*)**|350 - 6|350 - 6|None (Default Rating)||||||10,000|



* Any wire class evaluated (see terminal specification section) 

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10/20/22 

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## Product Data Sheet 

## **Installation & Accessories** 

- Mounting (Panel): 

   - For use with #10 fastener (#8 washer recommended with SHCS) 

   - Mounting torque to be determined in end use application not to exceed 30 in lbs (3.4 Nm) 

- Cover: 

   - Snap on hinge cover available upon request 

   - Catalog number: 

   - For 3-Pole (1343xxx), CH1343 

   - For 2-Pole (1342xxx), CH1341 (2x for each pole) 

   - For 1-Pole (1341xxx), CH1341 

   - Covers are black thermoplastic 

## **Drawing** 

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10/20/22 

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