Lutron Energi Savr Node 4-Zone 20A Softswitch Switching Controller | QSN-4S20-S

Lutron QSN-4S20-S Energi Savr Node 4-Zone 20A Softswitch Controller

The Lutron QSN-4S20-S is a versatile and robust switching controller designed to provide centralized management for up to four zones of lighting or motorized loads. As part of the Energi Savr Node (ESN) family, this unit is engineered to simplify energy code compliance while providing high-capacity switching (20A per zone) for LED, fluorescent, and HID fixtures.

What sets the QSN-4S20-S apart is the integration of Lutron’s Softswitch technology. This arcless switching design prevents the degradation of relay contacts, ensuring a product lifespan of up to 1,000,000 cycles—even under the heavy inrush currents typical of modern commercial lighting. With dedicated inputs for occupancy sensors, daylight sensors, and dry-contact switches, it provides an all-in-one solution for sophisticated building automation.

Key Features

• Softswitch Technology: Patented arcless switching protects internal relays for 1,000,000 cycles, even with high-inrush loads.
• High-Capacity 20A Switching: Each of the 4 zones supports up to 20A, making it suitable for both lighting and switched receptacle control.
• Integrated Sensor Inputs: Direct connection for 4 occupancy sensors, 4 daylight sensors, and 4 IR receivers for localized automation.
• Dry-Contact Integration: Features 4 inputs for Class 2 dry-contact switches to trigger scenes or overrides.
• Universal Voltage: Operates across a wide range of voltages from 120V to 277V, covering most commercial electrical standards.
• QS Link Communication: Seamlessly integrates with seeTouch QS keypads and Lutron centralized management systems like Quantum or Athena.

Technical Specifications

Included in the Box

• (1) Energi Savr Node 4-Zone 20A Switch Controller (QSN-4S20-S)
• (1) Surface-Mount Steel Enclosure and Cover
• (1) Installation and Wiring Guide