Overview
The Square D 9001KA2 contact block is a fingersafe auxiliary contact block designed for Schneider Electric’s Harmony 9001K 30mm push button operator systems. This unit is part of the robust industrial-grade Harmony series and integrates seamlessly with existing control systems requiring reliable, protected terminals. The 9001KA2 is rated at 10A, 600VAC and features double-break, direct-acting contacts that meet stringent safety standards for operator protection.
Key Features
- Fingersafe Design: Meets VDE 0106 Part 100 safety standards with protected terminals, preventing accidental contact with live circuits.
- Double-Break Contacts: Direct-acting contact configuration ensures reliable switching with minimal bounce and long operational life.
- 1 NO Configuration: Single normally-open contact provides flexibility for diverse circuit control applications.
- Screw Clamp Terminals: Captive terminal screws allow secure wire attachment with minimal installation time.
- IP20 Protection: Integrated enclosure design protects against unintended contact with live circuits.
- Self-Grounding: Integrated earth ground connection eliminates need for separate ground wiring.
Technical Specifications
- Voltage Rating: 600 VAC (120/240/480/600V AC contact rating available)
- DC Rating: 2.5A @ 125/250/600V DC
- Current Rating: 10A AC
- Contact Type: Silver alloy, double-break
- Configuration: 1 NO (1 normally-open)
- Action: Momentary, direct-acting
- Mounting: Threaded for 30mm Harmony operators
- Terminals: Screw clamp (captive backed-out screws)
- Material: Nylon housing
- Enclosure Rating: IP20
- Safety Standards: UL Listed (E42259 CCN NKCR), CSA Certified (LR24590 Class 3211-03), VDE 0106 Part 100
- Weight: 0.05 lb (0.023 kg)
- Product Family: Schneider Harmony 9001K Series
Typical Applications
The Square D 9001KA2 contact block is ideal for industrial control panels, machinery control systems, and heavy-duty push button operator stations. Common applications include:
- Motor start/stop circuits requiring reliable auxiliary contacts
- Emergency stop (E-stop) circuit interlocking
- Process control feedback and status indication
- Heavy industry and extreme environment applications
- Oil-tight and dust-tight enclosure installations
- Systems requiring VDE safety compliance and operator protection
Compatibility & Replacements
Compatible With
- Schneider Electric Harmony 9001K 30mm push button operators (types K, SK, KX)
- Square D 9001K series selector switches and emergency stop buttons
- Industrial control systems requiring 30mm contact block integration
- Push button panel assemblies with Harmony operator heads
- Standard screw-terminal industrial control circuits (600VAC max)
Replaces / Drop-In Replacement For
- 9001KA contact blocks (earlier generation fingersafe blocks)
- Legacy Telemecanique 9001K contact blocks
- Other 1NO, 10A contact blocks rated 600VAC in 30mm Harmony platforms
- Verify exact compatibility with your system integrator before ordering, as variants exist across product lines.
Works With
- Schneider Electric Studio 5000 PLC programming environments
- Industrial push button control schemes and motor starter circuits
- IP20-rated enclosure systems and heavy-duty industrial cabinets
- Systems requiring UL, CSA, and VDE safety certification compliance
- Direct hardwired industrial control (non-network)
