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
Electrical
| Nominal Control Voltage | 12VDC |
| Maximum Voltage Rating | 12VDC main coil voltage |
| 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) |
Part Numbers
| Cross-Reference Part Numbers | Albright SW88-12 |
| OEM 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) |
Performance
| Electrical Life | 20,000 cycles (at rated load) |
| Mechanical Life | 300,000 cycles |
| Main Circuit Contact Voltage Drop | ≤80 mV at 100A |
| Overload Current | ≤7 times rated current for 1 second |
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 rated for 100A continuous current. It is equivalent to the Albright SW88-12 and controls direction and stopping of DC motors in electric lift trucks by switching the motor drive polarity. Maximum rated electrical cycles are 20,000 with robust mechanical design.
Q: Which electric lift truck models use the SW88-12 contactor?
A: The SW88-12 is compatible with electric forklift and lift truck models from Crown, Toyota, Raymond, and other manufacturers using the Albright SW88 series. It works in any 12VDC lift truck requiring motor reversing control for forward and reverse direction. Verify your equipment uses 12VDC coil voltage before ordering.
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 electric lift truck motor reversing applications where the operator engages forward, reverse, and neutral multiple times per shift. Actual cycle count to failure depends on load conditions and contact maintenance.
Q: What is the difference between SW88-12 and other SW88 series contactors?
A: The SW88-12 is a double-acting reversing contactor designed specifically for motor direction control. Other SW88 series variants like SW88-1 and SW88-3 operate at different voltages or have different contact configurations. All share the 12VDC nominal coil voltage in this model line but serve different switching functions in lift truck control circuits.
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 chatter 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. Field testing confirms these failure modes.