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Eaton Cutler-Hammer S811+ Soft Starters S811+N37P3S

S811+N37P3S

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The S811+N37P3S soft starter is an Eaton Cutler-Hammer soft starter from the S811+ series. Its key features include a digital interface module, DIP switches, a mounting base, a line input, a load output, network terminals, and a communications port. The S811+N37P3S soft starter The digital interface module on the S811+N37P3S soft starter makes it easy for the users to program the soft starter, to enable or disable different features on it, and to troubleshoot it. This soft starter can be used to start motors gently in pump, machine tool, or chiller system applications. The S811+N37P3S soft starter has a maximum operating shock resistance rating of 15 g from any direction.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with DO Supply's 2-year warranty.
Learn more

Technical specifications for S811+N37P3S

Part NumberS811+N37P3S
Product TypeSoft Starter
Soft Starter TypeNon-combination
Frame Size65mm
Amps37
OptionPremium (690V rated)
Poles3
Volts AC240 max.
Volts DC120 max.
Insulating voltage Ui660V
Operating Frequency47-63 Hz
Bypass mechanical lifespan10M
Resistance to Shock15g

The S811+N37P3S soft starter is an S811+ series non-combination soft starter manufactured by Eaton. It has an N-frame (65 millimeters) and its maximum current rating is 37 Amps. The input voltage range of this soft starter is 200 to 600 Volts AC with a control voltage of 24 Volts DC. It has a 3-pole design, it weighs 5 pounds 13 oz, and its dimensions (height, width, and depth) are 7.37 inches x 2.66 inches x 6.45 inches. The S811+N37P3S soft starter controls the acceleration and deceleration of all 3-phase motors that match its ratings. It utilizes its Silicon Controlled Rectifiers (SCRs) to provide the voltage control required to soft-start or soft-stop motors. Some starting and stopping modes available on the S811+N37P3S soft starter include the Voltage Ramp Start, Current Limit Start, Kick Start, and the Soft Stop.

The S811+N37P3S soft starter can be used to start motors through the Inline or the Inside-the-Delta mains wiring configuration, and it provides Edge Sensing Control to initiate a starting process under all conditions. The Level Sensing Control option on the S811+N37P3S soft starter provides a way to restart motors after a fault without the operator's intervention, thereby making this soft starter ideal for applications where the motion system is controlled remotely. A digital interface module featuring an LCD and keypad is built into the S811+N37P3S soft starter for easy configuration, metering, and monitoring of the system conditions. Its communication option offers native Modbus RTU capabilities that are compatible with different network topologies, allowing the S811+N37P3S soft starter to integrate seamlessly into any programmable logic controller or DSC system.