70A-4-220V

Overview

The Omega 70A-4-220V is a low-cost audible alarm annunciator from the 70A series, designed for industrial environments. It operates on a 220 Vac supply voltage and produces a warble tone at a sound level of 95 dB at 2900 Hz. The unit features solid-state reliability with no arcing or mechanical wear. It supports an operating temperature range from -30 °C to 65 °C and withstands up to 95% relative humidity. The device offers an operational life of 100 hours continuous operation at maximum rated voltage and 65 °C.

Feature Summary

• Solid-state construction eliminates arcing and mechanical wear for enhanced durability
• Warble tone output provides distinct auditory alert signaling
• Field programmable settings allow customization without computer setup
• Compact design facilitates easy installation in various enclosures

Applications

• Industrial machinery fault indication
• Process control panel alarm signaling
• HVAC system status monitoring
• Factory automation safety alerts

Procurement Notes

Verify that the incoming power supply matches the 220 Vac rating exactly to prevent damage. Confirm the required tone type is warble, as other models offer continuous or pulse tones. Ensure the installation environment stays within the specified temperature and humidity limits. Check mounting requirements against the physical dimensions provided in the datasheet. Validate that the 95 dB output level meets local noise regulations for the intended location.

Selection Notes

Select this model specifically when a 220 Vac supply is available and a warble tone is preferred over continuous or pulsed sounds. Consider the 70A series if cost-effectiveness and solid-state reliability are primary drivers. Evaluate the 95 dB output against ambient noise levels to ensure audibility. Compare physical dimensions against available panel space. Review the operational life specifications against maintenance schedules.

Part Context

This component belongs to the Omega 70A series of low-cost audible alarm annunciators. The series includes multiple variants offering different tone types such as continuous, fast pulse, and slow pulse. Models are available for both 120 Vac and 220 Vac supplies. The series is characterized by its simple installation, robust solid-state design, and suitability for general industrial alarm applications where high volume and clear signaling are required.

Replacement Considerations

Direct substitutes include other 70A series models with identical 220 Vac ratings but different tone characteristics, such as the 70A-1-220V (continuous) or 70A-2-220V (fast pulse). Verify that any replacement maintains the same 95 dB output level and electrical specifications. Ensure the physical footprint allows for direct interchangeability in existing mounting configurations.