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Eaton S811 soft starter unit in NEMA 1 enclosure

Eaton

Eaton S811+N37N3S 37A 600V 3-phase soft starter line protection

SKU CH-Z5G9-JXNDV

37 A soft starter handles 10 hp at 200 V, 10 hp at 240 V, 20 hp at 480 V and 30 hp at 575 V with 24 V DC control

  • Soft start reduces motor wear at 37 A output
  • 600 V AC input and output handles high-power loads
  • 24 V DC control voltage enables safe low-voltage operation
  • NEMA 1 enclosure suits indoor industrial environments
  • 30 hp at 575 V AC supports demanding three-phase applications

Eaton S811+N37N3S 37A Soft Starter

The Eaton S811+N37N3S is a 37A three-phase soft starter rated for 600V AC input and output. It provides controlled motor acceleration and deceleration to reduce mechanical stress and current surges. Designed for industrial motor control applications requiring line protection. Suitable for 10 hp at 200V AC and 240V AC, 20 hp at 480V AC, and 30 hp at 575V AC.

NEMA 1 Enclosure with 24V DC Control

The unit features a NEMA 1 enclosure suitable for indoor environments where falling dirt is a concern. Control voltage operates at 24V DC for integration with standard industrial control circuits. This voltage level supports compatibility with common PLC output modules and relay logic. The enclosure rating implies mounting inside a protected electrical cabinet or panel.

Replaces Direct-On-Line Starters for Reduced Inrush

This soft starter replaces direct-on-line or star-delta starting methods to limit inrush current and mechanical shock on belts, gears, and couplings. The upgrade is worth it when motor-driven loads suffer from water hammer, belt slip, or excessive peak demand charges. It is not for applications requiring full variable speed control or regenerative braking. Buyers needing continuous speed regulation should consider a variable frequency drive instead.

How it compares

Measured against everything we stock in Breakers & Circuit Protection, at today’s prices. Recalculated every night.

Price $2,501.99
Pricier than about 95% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameEATON

Questions about this item

What motor horsepower does the 37 A 600 V soft starter support at 480 V three-phase?

It is rated for 20 hp at 480 V AC three-phase, with 10 hp at 200 V, 10 hp at 240 V and 30 hp at 575 V.

What enclosure rating does the S811+N37N3S carry for mounting?

The unit is housed in a NEMA 1 enclosure suitable for indoor mounting.

What control voltage must be supplied to commission the soft starter?

Apply 24 V DC to the control terminals; the main circuit accepts 0–600 V AC three-phase input.

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