Eaton S611 Soft Starter

Eaton S611 Soft Starter | Frame B | 125A | 100 HP | 480V | Advanced Motor Control Solution

The Eaton S611 soft starter is a high-performance, solid-state motor controller engineered to provide smooth motor acceleration and deceleration, reduce mechanical stress, and optimize power efficiency in industrial environments. This unit is part of Eaton’s S600 Series and is built for medium-duty applications where precise motor control is critical.

Rated for up to 125A full load amperes (FLA) and 100 horsepower at 480V, the S611 offers dependable soft start and stop functionality for three-phase AC induction motors. Its compact Frame B design supports vertical mounting and includes dual slot architecture to simplify installation and integration in tight panel spaces.

This model operates on a control voltage of 108–132V AC, accepts wire gauges from #22–12 AWG (single conductor), and is fully compatible with a variety of upstream protection devices including FDC circuit breakers and Class RK5, K5, or J fuses. Ideal for HVAC systems, pumps, fans, conveyors, and compressors, the S611 soft starter ensures reduced inrush current and better protection of mechanical drive systems.

Key Features:

• Product Type: Soft Starter (S611 Series)
• Frame Size: B
• Rated Current: 125 Amps (62.5–125 FLA adjustable)
• Motor Rating: 100 HP @ 480V AC
• Operating Voltage: 480V AC, 3-phase
• Control Voltage: 108–132V AC
• Wire Range: #22–12 AWG (1 conductor)
• Mounting Orientation: Vertical
• Enclosure Slots: 2 (dual-slot form factor for compact panel design)
• Compatible Protection: FDC circuit breakers, Class RK5 / K5 / J fuses
• Application Type: Medium-duty motor start/stop control
• Benefits: Reduces inrush current, extends equipment life, minimizes mechanical wear
• Use Cases: Pumps, HVAC fans, compressors, material handling equipment, conveyors
• Condition: New, unused

Engineered to meet the performance demands of modern industrial automation systems, the Eaton S611 soft starter delivers the flexibility, safety, and performance needed for reliable motor control in commercial and manufacturing facilities.

S611 Soft Starter, Frame B, 125A, 100 hp, 480V, 62.5-125 FLA, 108-132V operating, #22-12 AWG, 1 conductor, Vertical mounting, 2 Slots, Soft starter, FDC circuit breaker, Class RK5/K5/J Fuse