Product Description
Albright SW180 series DC contactor with 150A interrupted or 200A uninterrupted continuous duty rating, featuring SPST normally open double breaking contacts with M8 stud terminals. Available in coil voltages from 6VDC to 240VDC with optional magnetic blowouts for 96VDC operation. Designed for direct current motor switching in electric vehicle applications including industrial trucks and material handling equipment. Provides 1000A fault breaking capacity and exceeds 5 million mechanical operation
Specifications
Electrical
| Peak Current Rating | 400A intermittent |
| Intermittent Current - 30% Duty Cycle | 275A interrupted / 365A uninterrupted |
| Intermittent Current - 50% Duty Cycle | 210A interrupted / 285A uninterrupted |
| Intermittent Current - 70% Duty Cycle | 180A interrupted / 240A uninterrupted |
| Coil Power Dissipation - Continuous Duty | 10W to 15W |
| Drop-Out Voltage Range | 10% to 25% of nominal coil voltage |
| Contact Voltage Drop at 150A | 30mV to 40mV across new contacts per pole |
| Fault Current Breaking Capacity - Resistive Load Without Blowouts | 300A at 60VDC per UL508 |
| Fault Current Breaking Capacity - Resistive Load With Blowouts | 300A at 96VDC per UL508 |
| Dielectric Voltage Strength | 1000VAC at 50Hz for 1 minute |
Part Numbers
| Model Series Designation | SW180 series contactor family |
Performance
| Typical Pull-In Time | 30ms for normally open contacts to close |
| Typical Drop-Out Time - Without Suppression | 8ms for normally open contacts to open |
| Typical Drop-Out Time - With Diode Suppression | 60ms for normally open contacts to open |
| Typical Contact Bounce Period | 3ms |
| Mechanical Durability | Greater than 5,000,000 cycles |
Frequently Asked Questions
Q: What are the interrupted and uninterrupted current ratings for the AL SW180-1?
A: The AL SW180-1 (SW180 series) is rated for 150A interrupted or 200A uninterrupted continuous duty. At 30 percent duty cycle it handles 275A interrupted or 365A uninterrupted. The contactor provides 1000A fault breaking capacity.
Q: What coil voltage options are available for the AL SW180-1 series?
A: The SW180 series contactor family is available in coil voltages from 6VDC to 240VDC. Optional magnetic blowouts are available for 96VDC operation. Verify the specific voltage requirement for your application before ordering.
Q: What is the mechanical durability rating for the AL SW180-1?
A: The AL SW180-1 exceeds 5 million mechanical operations. This high cycle rating makes it suitable for frequent motor switching in electric industrial trucks, airport tractors, and material handling equipment.
Q: What contact material does the AL SW180-1 use?
A: The SW180-1 features double-breaking silver alloy contacts with SPST (single pole single throw) normally open configuration. Silver alloy provides excellent electrical conductivity and arc resistance for reliable motor switching.
Q: What is the duty cycle rating at 50 percent for the AL SW180-1?
A: At 50 percent duty cycle, the AL SW180-1 is rated for 210A interrupted or 285A uninterrupted continuous duty. Ensure your application duty cycle matches this rating for optimal performance and lifespan.