Overview
The Square D 9001 KA-3 contact block is a 30mm modular contact unit designed for integration with Harmony 9001K/SK/KX push button operators. This contact block features 1NC contact configuration, 10 A rating, 600 VAC contact voltage, and silver alloy contacts with screw clamp terminals. The 9001 K metal 30mm push buttons are automatic self-grounding operators requiring no additional wiring, making installation straightforward in control panels and machinery.
Key Features
- Normally closed (1NC) contact configuration for momentary action operation
- Silver alloy contact material ensures reliable electrical performance
- IP20 protection index guards against unexpected contact with live circuits
- Automatic self-grounding eliminates the need for additional wiring
- UL listed (File No. E42259 CCN NKCR) and CSA certified (File No. LR24590 Class 3211-03)
- Finger-safe design for improved operator safety
Technical Specifications
- Contact Configuration: 1NC (Normally Closed)
- Current Rating: 10 A
- Voltage Rating (AC): 600 VAC
- Voltage Rating (DC): 2.5 A at 125/250/600 V
- Contact Material: Silver Alloy
- Size: 30mm (Harmony Standard)
- Termination: Screw Clamp Terminals
- Action: Momentary (Spring Return)
- Enclosure Rating: IP20
- UL File: E42259 CCN NKCR
- CSA File: LR24590 Class 3211-03
Typical Applications
Schneider Harmony 9001K Series push buttons provide robust and reliable solutions for a wide range of heavy industry applications. Contact blocks like the 9001 KA-3 are used in:
- Motor control starter systems
- Machine press and conveyor control
- Pump and fan applications
- Heavy-duty industrial equipment with oil, dust, and water exposure
- Control circuits requiring normally closed logic
- Oil-tight, dust-tight, and water-tight industrial environments
Compatibility & Replacements
Compatible With
- 9001K metal operator base push buttons
- 9001SK plastic base operators for corrosion-resistant applications
- 9001KX multi-function square bezel operators
- 30mm Harmony push button assemblies
- Standard industrial control panels and electrical enclosures
Replaces / Drop-In Replacement For
- Original OEM Square D 9001 KA-3 contact blocks
- Schneider Electric 9001-KA3 equivalents (Square D is the Schneider Electric brand)
Works With
- Interchangeable light modules, color caps, pilot light lenses, and mushroom heads reduce inventory requirements
- Harmony 9001 series operators and subassemblies
- Standard 30mm push button mounting frames
- Industrial control relay and PLC I/O circuits
