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The S811V72N3S soft starter is a motor starter which has been manufactured by Allen-Bradley within the S811 series. It can start motors in fan, compressor, conveyor, saw, and even rock crusher systems and applications. The S811V72N3S soft starter supports selectable starting modes that include the ramp start mode, the current limit start mode, and the kick start mode. It can operate at a maximum shock rating of 15 g. The S811V72N3S soft starter uses an external power supply that has a voltage rating of 24 Volts DC.
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| Manufacturer | Eaton Cutler-Hammer |
|---|---|
| Product Type | Open Soft Starter |
| Product Line | S811 Soft Starters |
| Part Number | S811V72N3S |
| Weight | 150.00 lbs (68.04 kg) |
| Frame Size | 290 mm |
| Amps | 72 |
| Option | No |
| Features | Standard |
| 230V AC Hp Rating | 300 |
| Max. Current Capacity | 720 |
| Insulating Voltage (Ui) | 660V AC |
| Operating Voltage | 200-600V AC |
| Operating Frequency | 47-63 Hz |
| Resistance to Shock | 15G |
| Bypass Mechanical Lifespan | 10M |
A product of Eaton Cutler-Hammer, the S811V72N3S soft starter is an open soft starter classified under the Eaton S811 series. The S811V72N3S soft starter features the Eaton quick-connect port and a built-in communication module that enables the unit to easily connect to various networks. For enhanced capability, Eaton Cutler-Hammer offers its S811 open soft starters with the new digital interface modules. The open soft starters feature different starting modes, including the voltage ramp start and the current limit start. The S811V72N3S soft starter has 720 Amps of maximum current and it features a control voltage rating of 24 Volts DC. The unit also comes with the in-line connection option. The S811V72N3S soft starter is UL listed and it comes with the EN, CSA, and IEC certifications.
The S811V72N3S soft starter offers the users several advantages. By using the open soft starters, the users are guaranteed to have a limited starting current and a reduction of the power line disturbance upon startup. The unit also features a low power demand for startup and it delivers a controlled acceleration. The soft starters like the S811V72N3S soft starter feature the acceleration adjustment capability that is based on the load that the soft starter is handling. For pure inertial load acceleration, the S811V72N3S soft starter comes with the adjustable acceleration that is based on time and load level. The S811V72N3S soft starter delivers an adjustable torque limit for protecting the machinery from damage, protecting the operation process, or protecting the product. For controlled stopping, the unit features a soft slow down and a timed stopping process. It also supports a fast reversal process which puts much less stress on the AC motor than the plug reverse.
The Eaton S811V72N3S Open Soft Starter operates with 72 Amps, a 200-600V Operating Voltage, and a 47-63 Hz Operating Frequency. It has a 290 mm Frame Size and Standard Features.