Overview
The Square D 9001SK2L is a 30mm illuminated pushbutton operator head from Schneider Electric’s Harmony 9001SK series. Designed for heavy-duty industrial control applications, this pushbutton provides a modular platform for building complete illuminated control stations. The plastic bezel offers superior corrosion resistance compared to chrome-plated alternatives, making it ideal for harsh manufacturing environments, chemical processing, food and beverage applications, and outdoor installations.
Key Features
- Modular Design: Operator head only—combines with contact blocks and light modules for complete functionality
- Plastic Housing: Black plastic bezel resists corrosion, oil, dust, and moisture in demanding environments
- Spring-Return Operation: Momentary action returns to neutral position automatically
- 30mm Standard Size: Compatible with full Harmony 9001SK/9001K accessory ecosystem
- NEMA/IP Ratings: Rated NEMA 1/2/3/3R/4/4X/6/12/13 and IP64 for reliable seal against environmental contamination
- Panel Mounting: Standard screw-clamp connection for quick installation in control cabinets and operator stations
Technical Specifications
- Manufacturer Series: Harmony 9001SK
- Part Number: 9001SK2L
- Operator Style: Pushbutton, projecting, without cap
- Size: 30 mm diameter
- Contact Configuration: Operator head only (add contact block separately)
- Operation: Spring return, momentary
- Bezel Material: Black plastic
- Enclosure Rating: NEMA 1/2/3/3R/4/4X/6/12/13
- IP Rating: IP64
- Mounting: Panel mount with screw clamp terminals
- Color: Black (plastic bezel)
- Illumination: Without bulb—compatible with BA 9S lamp modules
- Certifications: UL 508, CSA, CE, RoHS Compliant
Typical Applications
Square D 9001SK2L pushbuttons are widely deployed in:
- Manufacturing and process control systems requiring harsh-environment rated equipment
- Food and beverage processing lines where corrosion resistance and easy cleaning are critical
- Automotive production and assembly facilities
- Crane and hoist control stations
- Water and wastewater treatment operations
- Chemical processing and mining operations
- Machine tool operator interfaces
- Modular control panel construction for system integrators and OEMs
Compatibility & Replacements
The 9001SK2L is an operator head component designed for assembly with Harmony 9001SK contact blocks and light modules. To build a complete illuminated pushbutton, pair this head with compatible accessories from the 9001SK/9001K line, including contact blocks (1NO, 1NC, 2NO, 2NC configurations) and transformer light modules rated at 110/120 VAC. The modular architecture allows customization of electrical characteristics without changing the mechanical housing, simplifying inventory management and accelerating system commissioning. All Harmony 9001SK and 9001K components share the same 30mm footprint and mounting interface, ensuring broad interchangeability across the product family.














