Product Description
The SW88-12 is a 12VDC double-acting motor reversing contactor designed for electric lift truck applications. It provides 100A rated current at 12VDC, with up to 20,000 electrical cycles and robust mechanical design. Equivalent to Albright SW88-12, this unit offers reliable performance in industrial electric vehicle control circuits.
Specifications
Part Numbers & Compatibility
| Make | Albright, Curtis |
| Cross-Reference Part Numbers | Albright SW88-12 |
| Part Number | SW88-12 |
| Equivalent Part Numbers | Compatible with various electric forklift models utilizing Albright SW88 series, including SW88-1, SW88-3 (for different voltages) |
| Application | Electric lift truck applications |
Electrical Specifications
| Nominal Control Voltage | 12VDC |
| Maximum Voltage Rating | 12VDC main coil voltage |
| Electrical Life | 20,000 cycles (at rated load) |
| Main Circuit Contact Voltage Drop | ≤80 mV at 100A |
| Overload Current | ≤7 times rated current for 1 second |
| Rated Current | 100A |
Additional Specifications
| Power Consumption | Nominal ≤15 W (coil at 12VDC) |
| Pull-in Time | ≤30 ms |
| Drop-out Time | ≤20 ms |
| Dielectric Strength | 1000 VAC for 1 minute (50/60 Hz) |
| Mechanical Life | 300,000 cycles |
| Design Type | Double-acting motor reversing contactor |
Frequently Asked Questions
Q: What is the SW88-12 and what does it do?
A: The SW88-12 is a 12VDC double-acting motor reversing contactor designed for use in electric lift trucks. It controls the direction and stopping of DC motors by switching the motor drive polarity, making it suitable for applications requiring forward and reverse operation.
Q: Which electric lift truck models use the SW88-12 contactor?
A: The SW88-12 is compatible with electric forklifts and lift trucks from Albright, Curtis, and other manufacturers that use the SW88 series contactors. It is intended for 12VDC systems requiring motor reversing control.
Q: How many electrical cycles can the SW88-12 handle?
A: The SW88-12 is rated for up to 20,000 electrical cycles. This represents typical service life in motor reversing applications where the operator engages forward, reverse, and neutral multiple times per shift.
Q: What is the difference between SW88-12 and other SW88 series contactors?
A: The SW88-12 is a double-acting reversing contactor specifically designed for motor direction control. Other SW88 series variants operate at different voltages or have different contact configurations, but all share the 12VDC nominal coil voltage.
Q: When should the SW88-12 contactor be replaced?
A: Replace the SW88-12 if the lift truck motor does not respond to forward or reverse commands, if the contactor buzzes or chatters without pulling in, if the motor runs but does not stop when the control is released, or after approximately 20,000 electrical cycles if heavy use is documented.
Q: What materials are used in the construction of the SW88-12?
A: The SW88-12 is constructed with durable materials to ensure long-lasting performance in industrial environments. It features a robust mechanical design suitable for frequent use in electric lift truck applications.
Q: How do I find the right replacement for my SW88-12?
A: To find a suitable replacement, ensure the part number matches your application requirements. The SW88-12 is compatible with electric lift trucks from Albright and Curtis, and it should be used in 12VDC systems requiring motor reversing control.