Overview
The Square D 9001KS43B is a compact, easy-to-install selector switch operator designed for robust industrial control applications. As part of the Harmony 9001K series, this operator is optimized for 30mm panel cut-outs and delivers maintained (stay-put) operation across three selectable positions with a 70-degree throw left-center-right configuration. It arrives new in box and is ready for immediate integration into your automation system.
Key Features
- 3-Position Maintained Operator: Left-center-right throw ensures reliable mode selection without spring return
- Compact 30mm Form Factor: Direct fit for standard industrial panel cutouts
- Chromium-Plated Metal Bezel: Corrosion-resistant construction with impact resistance and professional appearance
- IP66 / NEMA 4/13 Protection: Water tight, dust tight, and oil tight for indoor/outdoor use, ideal for harsh manufacturing environments
- Metal Operator Base: The 9001K operator has a metal operator base for automatic self-grounding and reduced wiring complexity
Technical Specifications
- Self-grounding metal base requiring no additional wiring
- Non-illuminated (no LED or incandescent light)
- Contacts supplied without contact block (purchased separately as required)
- Maintained operation (spring return not included)
- Throw angle: 70 degrees
- Standard knob profile: Black color
- Operator type: Specialty selector switch
- Conforms to IEC, UL, CSA, EN and NOM standards with CE marking
- UL listed file E42259 CCN NKCR; CSA LR24590 class 3211 03
Typical Applications
30mm selector switches are used in automotive, machine tool, crane and hoist, food and beverage, industrial applications, material handling, petrochemical, wastewater treatment, and metallurgy industries. The Square D 9001KS43B is commonly deployed for:
- Machine mode selection (manual/automatic/off)
- Conveyor belt direction control (forward/stop/reverse)
- Process equipment state switching
- Emergency shutdown circuits requiring operator interface
- Outdoor or washdown-duty control panels
Compatibility & Replacements
Compatible With
- Harmony 9001K push button range (same mounting footprint and ecosystem)
- Standard 30mm diameter panel cutouts
- IEC and NEMA control circuit architectures
- Emergency stop systems and pilot device circuits
- Manual control and automation integration schemes
Replaces / Drop-In Replacement For
- Square D 9001KS43B (direct OEM part—this is the original model)
- Compatible as a maintained selector operator upgrade in legacy Harmony systems
Works With
- Harmony 9001K series operators, including push buttons, mushroom head stops, and key switches
- Square D / Schneider Electric control panel assemblies
- Manual control wiring and hard-wired logic circuits
- IEC 947 (EN 60947) pilot device assemblies
- Auxiliary contact blocks and terminal accessories (sold separately)
