IDEC Switch HA-C2 – Miniature DPDT Gold-Contact Switch Block for L6 Series Actuators
The IDEC Switch HA-C2 (often referenced in industrial automation as the IDEC HA-C2 contact block) is a compact, high-reliability switch contact block engineered by IDEC Corporation. Designed for seamless integration with IDEC’s 16 mm L6 Series (HA1B/HA2B) illuminated pushbuttons, selector switches, and keylock operators, the IDEC Switch HA-C2 delivers double-pole double-throw (DPDT) circuit switching within a miniature panel footprint.
As shown in the product image, the block features a lightweight, heat-resistant housing with a top-locking blue lever mechanism. This design allows maintenance personnel to snap the contact block securely onto standard 16 mm switch actuator bodies or detach it quickly during field servicing without disturbing the front panel seal.
Key Features of the IDEC Switch HA-C2
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DPDT (2 Pole Changeover) Configuration: Integrates two sets of Form C contacts (2 NO + 2 NC) inside a single miniature body.
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Gold-Plated Crossbar Contacts: Uses gold-clad contacts designed for low-level logic switching, preventing signal degradation in dry circuit applications.
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Locking Lever Mechanism: Features a simple locking bayonet lever that locks the contact block onto 16 mm panel operators, eliminating the need for mounting screws.
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Solder Tab / Quick-Connect Terminals: Equipped with combination solder lug and 0.110-inch (2.8 mm) quick-connect terminal tabs for secure, space-efficient wiring.
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Compact 16 mm Mounting Compatibility: Form-matched specifically for space-restricted control panels, OEM consoles, and medical equipment interfaces.
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International Certification: Meets international safety and quality standards, holding UL, CSA, CE, and RoHS approvals.
Common Applications and Industrial Usage
The low-current switching performance and modularity of the IDEC Switch HA-C2 make it an essential component in small-scale logic control panels:
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Low-Voltage PLC Digital Inputs: Connects directly to 24 VDC programmable logic controller inputs without requiring minimum load pull-up resistors.
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Control Panels & OEM Consoles: Serves as the primary contact block for 16 mm pushbuttons, key switches, and selector operators on compact machinery.
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Medical & Test Equipment Panels: Fits tightly packed control surfaces where rear-panel depth and minimal electrical noise are critical requirements.
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Instrumentation & Status Interlocking: Enables simultaneous switching of separate control signal circuits and status indicator loops via its DPDT architecture.
Technical Specifications
The electrical limits, terminal styles, and physical specifications of the IDEC Switch HA-C2 comply with international industrial automation standards:
| Parameter Specification | Technical Details & Operational Values |
| Component Classification | Switch Contact Block / Configurable Switch Block |
| Primary Target Keyword | IDEC Switch HA-C2 |
| Contact Circuit Type | DPDT (2 Pole Double Throw / 2NO + 2NC) |
| Contact Material | Gold-Clad Silver Contacts |
| Max Contact Current Rating | 5 A (Thermal) / 100 mA (Logic Level Switching) |
| Max Operational Voltage | 250 VAC / 125 VDC |
| Terminal Connection Type | Solder Lug 0.110″ (2.8 mm) Quick Connect |
| Compatible Switch Series | IDEC L6 Series (16 mm HA1B / HA2B Pushbuttons) |
| Mounting / Attachment Method | Twist-and-Lock Bayonet Lever |
| Operating Temperature | -25°C to +55°C (-13°F to +131 °F) |
| Compliance & Approvals | UL Recognized, CSA Certified, CE, RoHS Compliant |
Installation Guidelines and Best Practices
Installation Tip: Ensure the locking bayonet lever on the contact block is completely open before sliding it onto the operator housing, then rotate the lever until it clicks to lock the assembly.
Use Appropriate Soldering Practices: When hand-soldering connections to the terminal tabs, apply a 25–30 W soldering iron for under 3 seconds to avoid thermal damage to the internal housing.
Adhere to Low-Current Limits: Reserve gold-contact variants like the HA-C2 primarily for micro-load and low-power control applications (100 mA or lower) to maximize contact service life.
Verify Panel Cutout: Pair this block exclusively with standard 16 mm panel hole actuators from the IDEC L6 family.
To review official contact block datasheets, CAD dimensional drawings, and complete L6 series 16mm switch catalogs, check the global IDEC Industrial Control Products Directory.
To request a fast commercial quote or evaluate real-time regional warehouse stock availability for bulk procurement needs, please connect with our sales branch via the Control Qatar Contact Page.
