Product Description
Albright SW88B-27 is a 24VDC double-acting reversing contactor rated for 100A thermal current and up to 185A intermittent duty with robust mechanical durability exceeding 5 million cycles, suitable for electric lift truck motor load applications. Auxiliary contacts rated for up to 5A, with no known cross-reference part numbers available.
Specifications
Electrical
| Nominal Coil Voltage | 24VDC |
| Intermittent Current Rating (30% duty cycle) | 185A |
| Intermittent Current Rating (40% duty cycle) | 160A |
| Intermittent Current Rating (50% duty cycle) | 140A |
| Intermittent Current Rating (60% duty cycle) | 130A |
| Intermittent Current Rating (70% duty cycle) | 120A |
| Rated Fault Current Breaking Capacity (Icn) | 600A at 80VDC (SW88B configuration) |
| Auxiliary Contact Switching Capability (Resistive Load) | 5A at 24VDC, 2A at 48VDC, 0.5A at 240VDC |
| Typical Voltage Drop per Pole Across New Contacts | 40mV (normally open), 50mV (normally closed) at 100A |
| Coil Power Dissipation (Intermittent Types) | 15 to 20 Watts |
Part Numbers
| OEM Part Number | SW88B-27 |
| Equivalent Part Number | SW88B27 |
Frequently Asked Questions
Q: What is the coil voltage and thermal rating for the SW88B-27?
A: The SW88B-27 operates at 24VDC nominal with 100A thermal current. Intermittent capacity is 185A at 30% duty, 160A at 40% duty, 140A at 50% duty, and 130A at 60% duty.
Q: What electric lift truck applications is the SW88B-27 designed for?
A: The SW88B-27 is a double-acting reversing contactor for electric lift truck motor load applications requiring reliable DC motor control and switching functionality.
Q: What is the mechanical cycle life and auxiliary contact rating?
A: The SW88B-27 exceeds 5 million mechanical cycles for high durability in demanding motor control duty. Auxiliary contacts are rated for maximum 5A.
Q: What equivalent or cross-reference part numbers exist?
A: The SW88B-27 is equivalent to SW88B27. No additional cross-reference part numbers are available for this model variant.
Q: Why is the SW88B-27 suitable for electric lift truck motor control?
A: The SW88B-27 combines 24VDC rated coil, double-acting reversing capability, mechanical durability exceeding 5 million cycles, and optimized current ratings across multiple duty cycles for reliable electric lift truck motor and load control.