ABB PST Extreme-Duty Softstarter
Extreme Duty
HP: 25HP - 600HP
Designed for critical applications in nearly any environment the ABB PST Extreme Series enclosed softstarters provide reliable, reduced voltage starting for the ordinary and full voltage starting for the extreme cases. Every PST Extreme Series softstarter package provide the best of ABB's combination starters integrated with the PST series softstarter, packaged in a weatherproof (NEMA Type 4) enclosure ready to perform the most extreme applications with complete reliability.
While most softstarters offer voltage ramp starting, the PST series does more. By using closed loop current control in addition to voltage ramping the PST helps get every bit of performance from even weak power systems. Built and tested to provide 500% rated current for 30 seconds, using the PST means that typical applications can be sized based on Motor HP without resorting to complex, application based de-rate tables. Just check the Motor HP and Voltage, get the part number and order.
Features
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Softstarter is one size larger than required full load amperes of the motor to get additional starting capacity (Extreme Duty)
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Short circuit protection
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Redundant electronic overload
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Emergency start bypass
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Torque control
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A door interlocked disconnect handle (NEMA 4 rated) - Padlockable / Defeatable
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Door mounted ABB Hand-OFF-Auto switch (NEMA 4 rated)
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Three (3) vibration resistant, LED type pilot lights (NEMA 4 rated)
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A UL 508A label
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A UL Service entrance rating
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Suitable for Service entrance 3 wire
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NEMA 4 enclosure
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Larger horsepower units will include floor mounting kit
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