US-09-628-W

Overview

The US-09-628-W is a piezoelectric chime alarm manufactured by Floyd Bell Inc, belonging to the AudioLarm II series. Designed for panel mounting, this internally driven indicator operates on a DC input voltage range of 5 to 25 volts. It generates an acoustic output at a frequency of 2.9 kHz with a sound pressure level of 70 dB measured at 5 volts and a distance of 61 cm. The device draws between 5 and 25 mA during operation. Physical dimensions include a diameter of 35.81 mm and a maximum installation height of 37.59 mm. It features wire lead termination and carries UL and UR approval agencies.

Feature Summary

• Internally driven piezoelectric technology for direct DC connection
• Panel mount construction with top-positioned wire leads
• IP68 rated enclosure providing dust tight and waterproof protection

Applications

• Industrial machinery status indication
• Equipment fault signaling
• Control panel audio alerts

Procurement Notes

Verify the specific part number suffix against official manufacturer documentation to confirm exact electrical ratings and physical dimensions. Ensure that the operating voltage and current requirements align with the target system design before procurement. Confirm that the IP68 rating meets the environmental exposure standards required for the intended installation location.

Selection Notes

Select this component when a reliable, internally driven piezo chime is required for industrial environments. The wide voltage tolerance supports various DC power systems. The robust IP68 sealing makes it suitable for harsh conditions where moisture or dust ingress is a concern. Verify that the 70 dB acoustic output is sufficient for the ambient noise levels of the application area.

Part Context

This unit is part of the AudioLarm II series, which represents widely used industrial alarm technology from Floyd Bell Inc. The series is characterized by durable construction and consistent performance in demanding settings. As an active product, it remains available for new designs requiring standard panel-mount audible indicators.

FAQ

What is the acoustic frequency of the US-09-628-W?

The device operates at a frequency of 2.9 kHz.

Is the US-09-628-W water resistant?

Yes, it has an IP68 rating, making it dust tight and waterproof.