Product Description
CONTACT SET (SB350 3/0)
Specifications
Physical Specifications
| Wire Gauge Rating | 3/0 AWG (American Wire Gauge) |
| Part Type | Contact Set |
| Rating | SB350 3/0 |
| Typical Lifespan | 2-4 years under normal duty cycles |
Compatibility
| Application | Solenoid Control Circuits, High-Amperage Circuits |
| Equipment Class | Electric Lift Trucks, Electric Forklifts, Electric Pallet Jacks |
| Replacement Indicators | Arcing, sparking, pitting, delayed response, visible erosion, reduced amperage |
| Compatible Amperage Systems | High-amperage 3/0 rated circuits only |
Frequently Asked Questions
Q: What does the 123109 contact set fit?
A: The 123109 is a contact set rated SB350 3/0 (American Wire Gauge) for high-amperage electric lift truck control circuits. This part fits various Crown, Toyota, Raymond, Yale, and Hyster lift truck models with 3/0-rated control systems. Check your equipment documentation to confirm compatibility.
Q: What is the current capacity of the 123109 contact set?
A: The SB350 3/0 rating indicates this contact set is designed for higher amperage circuits than the 2/0 version. The 3/0 gauge supports circuits with greater power draw. Do not use undersized contact sets on 3/0 circuits, as they will overheat and fail prematurely.
Q: How often does the 123109 contact set need replacement?
A: Contact sets last approximately 2 to 4 years under normal duty cycles. Heavy-use environments and frequent switching reduce lifespan. Replace when contacts exhibit pitting, arcing damage, poor engagement, or resistance to switching commands.
Q: What are signs the 123109 contact set is wearing out?
A: Warning signs include arcing or sparking during engagement, delayed response to control signals, the solenoid clicking without full circuit closure, visible contact surface erosion, and reduced circuit amperage. These symptoms indicate contact degradation and replacement is needed.
Q: Can I substitute the 123108 (2/0) in place of the 123109 (3/0)?
A: No. The 123108 (2/0) is undersized for 3/0 circuits and will overheat, arc excessively, and fail rapidly. Always use the contact set rated for your specific circuit amperage. Using SKU 123109 for 3/0 systems ensures proper performance and reliability.