Appleton NMRB-RE Mushroom Pushbutton Explosionproof Red

Product Description

The APPLETON NMRB-RE is a red mushroom head pushbutton designed for use with Appleton EFD, EFDB, and EDS series explosionproof control stations. It features a rubber weather boot and is rated for momentary contact operation. The unit carries explosionproof construction and meets Class I Division 1 and 2 Group B, C, D and Class II Division 1 and 2 Group E, F, G and Class III hazardous location ratings, along with NEMA 3R, 7B, 7C, 7D, 9E, 9F, and 9G enclosure designations. It is compliant with NEC and CEC applicable standards. Electricians and instrumentation technicians install this component when maintaining or expanding hazardous-location control station assemblies in industrial facilities.

This pushbutton is intended for use in hazardous locations where flammable gases, vapors, combustible dust, or ignitable fibers may be present. Typical applications include oil and gas facilities, chemical processing plants, grain handling operations, and other industrial environments requiring explosionproof-rated operator interface components. It is specifically used on Appleton EFD, EFDB, and EDS control station enclosures and is sold as an individual replacement or spare component.

Key Features

• Mushroom head actuator design for positive, high-visibility operation
• Red color for stop or emergency function identification
• Includes rubber weather boot for added environmental protection
• Explosionproof construction rated for Class I Div 1 and 2 and Class II Div 1 and 2 hazardous locations
• Momentary contact operation
• Compliant with NEC and CEC standards

Compatibility

Designed for use with Appleton EFD, EFDB, and EDS series explosionproof control stations as stated by the manufacturer.

Installation Notes

Installation should be performed by a licensed electrician qualified to work in hazardous locations in accordance with NEC Article 500 and applicable CEC requirements. De-energize and lock out the control circuit before removing or installing any pushbutton component. Verify the enclosure classification matches the area classification before reassembly. Do not operate the control station without the weather boot and enclosure covers properly seated and secured.

Technical Specifications

• Type: Mushroom Pushbutton
• Color: Red
• Constructional Feature: Explosionproof
• Contact Operation: Momentary
• Hazardous Location Rating: Class I Div 1 and 2 Group B C D, Class II Div 1 and 2 Group E F G, Class III
• NEMA Rating: 3R, 7B, 7C, 7D, 9E, 9F, 9G
• Applicable Standard: NEC and CEC
• Includes: Rubber Weather Boot
• Package Dimensions: 5.6 inches x 5.6 inches x 6.1 inches
• Package Weight: 0.35 pounds
• Country of Origin: Mexico

Standard Information

• Brand: APPLETON
• Manufacturer Part Number: NMRB-RE