Features
Product colour	Black
Certification	UL, CSA
Packaging content
Quantity	1
Power
Power source type	AC
Weight & dimensions
Diameter	2.97 cm
Width	54.4 mm

The Eaton M22-AMC is a compact acoustic alarm from the RMQ system, specifically designed for built-in applications in industrial control and plant environments. The device features a black front and is equipped with a BA 9s lamp holder, making it suitable for mounting signal or warning lamps. It is powered via AC and complies with protection class requirements IP40, providing protection against contact with tools and against splashing water to a limited extent. Certification according to UL and CSA confirms compliance with international safety standards, particularly for use in North America and other regions with these standards.

Applications

The M22-AMC is suitable for applications in industrial automation where visual signals are required in combination with acoustic alarms. It is commonly used in control boxes, enclosures or control panels to visually indicate states such as operation, faults or warnings. The compact design with a diameter of 2.97 cm and a width of 54.4 mm allows for dense mounting in limited installation spaces. The BA 9s holder is a standard for small signal lamps and is widely used in many industrial plants.

Functions and Equipment in Detail

The device is designed as an acoustic alarm, but without an integrated buzzer. The designation “without buzzer” means that it does not provide acoustic signaling via an integrated piezo or electromagnetic speaker. Instead, it serves as a base for mounting an external signal or warning lamp, which is connected via the BA 9s holder. The front is black, enabling clear optical distinction in control panels. The protection class IP40 protects against contact with tools and splashing water, but not against dust or prolonged moisture – this is suitable for indoor applications in dry or slightly damp environments.

Technology Explained Simply

Power supply is via AC, meaning the device is connected to an alternating current source, typically via a control system or power supply unit within an enclosure. Certification by UL and CSA ensures compliance with safety standards, particularly regarding electrical insulation, heat generation and mechanical stability. Protection class IP40 is intended for indoor applications where no high requirements for dust or water protection apply.

Compatibility and Accessories

The M22-AMC is part of the RMQ system and can be combined with various accessories to extend functionality. These include, for example, mounting plates M22-E5, M22-EY1 and M22-E2, which enable structured mounting in enclosures. Additionally, push-button accessories such as M22S-ST-D11 (HAND AUTO) or M22S-ST-GB11 (MAN AUTO) are available to extend operating functions. Mounting enclosures such as M22-I1 or M22-I3 allow installation on the front side of devices.

Mounting and Installation

Mounting is carried out in standard control boxes or control panels, with mounting plates and mounting enclosures supporting mechanical fixation. The BA 9s holder enables easy installation of a signal lamp. Electrical connection is made via AC voltage supply, with exact connection data found in the manufacturer’s technical documentation. Protection class IP40 requires installation in indoor environments where there is no constant moisture or dust exposure.

Advantages in Operation

The M22-AMC offers a compact, robust and standard-compliant solution for visual signaling in industrial plants. The use of the BA 9s holder ensures compatibility with a wide range of signal lamps. Certification by UL and CSA enables use in international markets. The clear, black front ensures good readability in control panels. The combinability with various accessories allows flexible adaptation to different requirements.