ATEX Sounders Zone 1 & Zone 2 Signalling Bell Ex de – Eaton MEDC dGW 21 Hazardous Area Sounder

Product Overview

Eaton MEDC dGW 21 are ATEX sounders (signalling bell) that were designed to warn, call and signal in group II explosive atmospheres and rough environmental conditions in hazardous areas. The signalling bell produces a sound volume of approx. 105dB(A) at 1 meter distance.

The frequency of the sound of the bell is approx 1kHz, meaning the signal can be clearly heard against lower frequency background noise. The bell of the hazardous area sounder can also be activated with the presence of a telephone ringing signal in the dRGW 21 version.

The protection of this product is a mixture of Exd “flameproof” for the driver system and Exe “increased safety” for the termination chamber. The MEDC dRGW 21 offers initiation by a relay from a telephone ringing voltage.

The flameproof chamber contains the electromagnetic driver system and the enclosure is made from GRP (glass-fibre reinforced polyester), guaranteeing protection against corrosion. As the dGW 21 is safety class II, so there is no equipotential bonding necessary.

All D.C. versions are also equipped with an electronic contact breaker, increasing product service life.

ATEX Sounders Zone 1 & Zone 2

ATEX

Features

• ATEX II 2 G Ex de IIC T6
• Housing made of glass-fibre reinforced polyester (GRP)
• Volume: approx: 105 dB(A)
• Protection: IP 66
• Safety class II
  (no equipotential bonding necessary)
• Version dRGW 21 with integrated telephone call relay
• Integrated terminal box realized in Ex protection mode increased safety

EATON MEDC dgw 20 – ORDERING REQUIREMENTS

*All part numbers are ATEX variants

Eaton MEDC

Eaton MEDC have developed ATEX products designed for harsh and hazardous area conditions and where there is a risk of explosion due to the presence of flammable atmospheres both onshore and offshore – since 1975 MEDC have been designers and manufacturers of alarm, signal, control and communications equipment.

Complete range of LV-HV Cable Joints, Terminations, Cleats & Glands are available to support installation of power, control and instrumentation cables up to 33kV – includes Cold Shrink for use in hazardous areas to provide electrical insulation and cable protection.

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