70A-1

Overview

The Omega 70A-1 is a low-cost audible alarm annunciator, specifically a buzzer, designed for industrial signaling applications. It operates on a 120 Vac supply voltage and produces a continuous tone at a sound level of 95 dB at a frequency of 2900 Hz. The device utilizes solid-state technology to ensure reliability by eliminating arcing and mechanical wear associated with traditional electromechanical buzzers. It features an operating temperature range from -30 °C to 65 °C and is rated for 100 hours of continuous operation at maximum rated voltage and 65 °C.

Feature Summary

• Solid-state construction provides high reliability without arcing or mechanical wear
• Generates a continuous audible tone at 95 dB for effective alarm signaling
• Designed for easy installation in various industrial environments

Applications

• Industrial alarm systems requiring audible notification
• Low-cost audible signaling solutions for machinery
• General purpose alarm annunciators in control panels

Procurement Notes

Verify the specific model suffix and voltage rating (120 Vac) against the application requirements before procurement. Confirm that the continuous tone characteristic aligns with the intended alarm protocol. Ensure the ambient temperature does not exceed the maximum operating limit of 65 °C during continuous duty cycles. Check for any specific mounting or wiring constraints defined in the manufacturer's documentation.

Selection Notes

Select this component when a reliable, solid-state audible indicator is required for 120 Vac circuits. The 95 dB output ensures audibility in moderately noisy environments. Consider the continuous tone feature versus pulse or warble options if different signaling patterns are needed. Evaluate the cost-effectiveness compared to electromechanical alternatives for long-term operational savings.

Part Context

The 70A series represents a line of low-cost audible alarm annunciators manufactured by Omega. These devices are engineered for durability and ease of use in industrial settings. The 70A-1 specifically denotes the variant configured for 120 Vac operation with a continuous tone output, distinguishing it from other models in the series that may offer different frequencies, tones, or voltage ratings.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided data.