MEDC DB4B high power explosion-proof Speaker
The MEDC DB4B is a high power explosion-proof Speaker that is produced as a replacement for the MEDC DB4 Speaker.
The MEDC DB4B is a high power explosion-proof Speaker that is produced as a replacement for the MEDC DB4 Speaker.
This MEDC Speaker has improved intelligibility and acoustic performance, and is certified to be used in temperatures ranging from -55°C up to +70°C. The DB4B has an EX enclosure that is made out of GRP with a rugged thermoplastic flare which provide a corrosion free and aesthetically pleasing product.
Features
Explosion-proof
8W, 15W & 25W versions
Power tappings, via integral transformer
Frequency response 350Hz – 8kHz
Ex enclosure – Glass reinforced polyester
Flare – High impact thermoplastic polyester
Stainless steel mounting bracket and cover screws
Mounting bracket has ratchet facility as standard
Optional swivel bracket available
Optional Ex e terminal chamber
Optional resettable fuse.
| Option | Body color, capacitor, entries, Ex atmospheres, Ex e terminal chamber, Power (8W, 15W, 25W), short flare, suitable for Gas or Gas and Dust, tag & duty labels, Transformer voltage |
|---|---|
| Material | Ex enclosure – Flame retardant, Flare – Flame retardant UV stable thermoplastic polyester, UV stable Glass Reinforced Polyester |
| Finish | Body – natural black, Flare – natural black, natural red |
| Mounting | 110 dBA at 1W at 1 meter, optional swivel bracket available, Output, Stainless steel bracket with ratchet facility |
| Rated power | 8W, 15W or 25W (other ratings available) |
| Ingress protection | (IPx7 & NEMA 6 on terminal chamber only), IP66, IP67, NEMA 4X & 6 |
| Operating temperature | -55°C to +70°C |
| Weight | Ex d/UL – 5.0kg, Ex de – 5.8kg |
| Area classification | non-Ex use, Zone 1, Zone 2 |
| Certification | ATEX, CCOE, CQST, cULus, DNV, IECEx, Inmetro, SIL2, TR CU |
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