HELLA 6EF 003 916-061 Switch, Bolted

HELLA 6EF 003 916-061 Switch – Bolted

The HELLA 6EF 003 916-061 is a high‑performance, bolted push‑button switch designed for automotive and industrial applications that require reliable operation at 12 V DC. Its compact construction, robust mounting options, and integrated illumination make it an ideal choice for control panels, instrument clusters, and safety interlocks.

Key Features

• Operating Voltage: 12 V DC – suitable for automotive circuits and low‑voltage industrial controls.
• Contact Configuration: Four terminals (4‑pole) allowing multiple circuit connections in a single unit.
• Actuation Method: Manual push‑button with spring return; provides tactile feedback and quick response.
• Mounting Type: Bolted – the switch includes threaded mounting holes for secure attachment to metal panels or chassis.
• Illumination: Integrated green LED indicator powered by a small incandescent bulb, ensuring visibility in low‑light conditions.
• Dimensions: 30.5 mm bore diameter; 10 mm plate thickness – compact yet sturdy.
• Material Construction: High‑strength polymer housing with metal contacts for durability and electrical reliability.

Electrical Characteristics

Installation and Mounting

The HELLA 6EF 003 916-061 is engineered for straightforward installation. The switch features a 30.5 mm bore that aligns with standard panel holes, while the 10 mm plate thickness ensures a flush fit against metal surfaces. Bolted mounting provides a secure attachment that resists vibration and shock – essential in automotive or machinery environments.

Wiring is performed through the four terminal blocks, which can be configured as normally open (NO), normally closed (NC), or a combination of both depending on circuit requirements. The integrated green LED requires a small incandescent bulb; when powered, it illuminates to indicate switch status and aids in troubleshooting during maintenance.

Applications

• Automotive Control Panels: Dashboard indicators, safety interlocks, or auxiliary power switches.
• Industrial Machinery: Start/stop controls, emergency stop circuits, and status indication panels.
• Railway Signalling: Manual override switches for signal control systems.
• Aviation: Cabin lighting controls and cockpit instrument panel switches where reliability is paramount.

Compliance and Standards

The switch meets stringent automotive and industrial standards, including ISO 26262 for functional safety and IEC 60068-2-1 for environmental testing. Its robust construction ensures compliance with vibration, temperature cycling, and humidity resistance requirements typical of high‑reliability environments.

Design Considerations

When selecting the HELLA 6EF 003 916-061, engineers should consider:

• Load Requirements: Verify that the expected current does not exceed 10 A per contact.
• Signal Integrity: The low contact resistance minimizes voltage drop in critical circuits.
• Mounting Surface: Ensure a flat, clean metal panel to accommodate the 30.5 mm bore and 10 mm thickness.
• Lighting Needs: The green LED is ideal for status indication; if a different color or brightness is required, an external LED module can be added.

Maintenance Tips

• Inspect the switch periodically for signs of wear on the contacts or housing.
• Clean the terminal blocks with a dry, lint‑free cloth to prevent corrosion.
• Replace the incandescent bulb if illumination diminishes; use a compatible replacement rated for automotive environments.

Conclusion

The HELLA 6EF 003 916-061 Switch – Bolted delivers dependable performance in demanding settings. Its combination of four‑pole connectivity, bolted mounting, integrated illumination, and robust electrical specifications make it a versatile component for any system that requires reliable manual control at 12 V DC.