Product Description
CONTACT SET (SB350 2/0)
Specifications
Product Overview
| Part Number | 66-0140 |
| Product Type | Electrical Contact Set Assembly |
Physical Specifications
| Contact Wire Gauge | 2/0 AWG |
| Amperage Capacity | High current (350+ amps) |
| Charger Series | SB350 |
| Material | Copper alloy contacts with insulated housing |
| Function | Provides electrical connection between charger and battery during charging cycles |
| Wear Pattern | Subject to arcing and oxidation from repeated engagement/disengagement |
Compatibility
| Application | Battery chargers for electric forklifts, electric pallet jacks, electric stackers |
| Replacement Interval | 3-7 years under normal use (3-5 cycles daily); 2-4 years under heavy use (10+ cycles daily) |
Frequently Asked Questions
Q: What is the 66-0140 contact set and which chargers use it?
A: The 66-0140 is an electrical contact set assembly for SB350 series battery chargers found on electric lift trucks. The 2/0 designation refers to the contact wire gauge and amperage capacity. This contact set handles higher power loads than smaller gauge alternatives.
Q: What is the difference between the 66-0120 and 66-0140 contact sets?
A: The 66-0120 is for SB50A chargers and the 66-0140 is for SB350 chargers. The 66-0140 has larger 2/0 gauge contacts designed to handle higher charging current. These contact sets are not interchangeable between charger models.
Q: What causes the 66-0140 contact set to wear out?
A: Contact wear occurs from repeated engagement and disengagement during charging cycles. Arcing (electrical sparking during contact separation) accelerates wear. Heavy charger use, improper battery connection sequences, or charger mechanical wear can increase arcing and shorten contact life.
Q: When should I replace the 66-0140 contact set?
A: Replace the contact set when you observe a charging delay, visible corrosion or pitting on contact surfaces, audible arcing sounds, or if the charger fails to complete a full charge cycle. Do not delay replacement as worn contacts can damage the charger or create electrical hazards.
Q: How long does a 66-0140 contact set typically last?
A: Under normal use (3 to 5 charge cycles per day), a contact set lasts 3 to 7 years. Heavy-use environments with 10+ cycles per day may reduce lifespan to 2 to 4 years. Proper battery connection technique and regular charger maintenance can extend contact life.
