Product Description
Contact Set (SB350 3/0), SKU 2I5321, designed for Caterpillar electric lift trucks, features copper alloy construction, silver-plated terminals, 600VDC rating, and 350A RMS continuous current capability. Compatible as replacement for SR350 3/0 and Promatch contact sets.
Specifications
Electrical Specifications
| Rated Voltage | 600VDC maximum |
Mechanical Specifications
| Contact Set Type | SB350 3/0, dual terminal configuration |
Part Numbers
| Manufacturer Part Number | 2I5321 |
| Cross-Reference Part Numbers | Replaces Caterpillar SR350, supersedes Promatch SR350 3/0 |
| Equivalent Part Number | SR350 3/0 |
| OEM Part Number | 2I5321 |
| Compatible Equipment | Caterpillar electric lift trucks utilizing SB350 3/0 series contact sets |
Performance Specifications
| Duty Cycle | Continuous duty, 120 cycles/hour |
| Service Factor | 1.10 |
Frequently Asked Questions
Q: What equipment does the 2I5321 contact set fit?
A: The 2I5321 is designed for Caterpillar electric lift trucks utilizing SB350 3/0 series contact sets. It replaces OEM part Caterpillar SR350 and supersedes Promatch SR350 3/0 variants.
Q: What is the current and voltage rating for the 2I5321?
A: The 2I5321 is rated for 350A RMS continuous current at 600VDC. It handles the same high-amperage demands as the 2I5320 but is sized for 3/0 AWG cable termination instead of 2/0 AWG.
Q: Can I use 2I5321 in place of 2I5320?
A: No. The 2I5321 is for 3/0 AWG cable and the 2I5320 is for 2/0 AWG cable. Using the wrong gauge will not provide proper terminal engagement and creates electrical connection problems. Verify your cable gauge before ordering.
Q: What material are the 2I5321 terminals made from?
A: The 2I5321 features copper alloy construction with silver-plated terminals. The silver plating provides superior corrosion resistance and electrical conductivity compared to tin-plated variants, making it suitable for demanding industrial environments.