Eaton DB3B Technical Manual

Also see for DB3B: Technical manual

Contents

8 Sounder - dB3B TM264 June 2019 www.eaton.comSounder - DB3BEnglishGeneral arrangemeno185 ±219°19°POS. 1POS. 2POS. 3200 ±230 ±164.5 1 (POS. 1 & 2)68.0 1 (POS. 3)280 ±3208 3 FOR SHORT FLARE VERSION30 ±1FIXING HOLES9 ±12 POSITIONSFIXING HOLE13 ±1143 ±275.90 ±22 ENTRIES MAX.Ex d LONG FLARE VERSIONWITH STANDARD BRACKET30°30°230 ±2255.5 3323.5 3 FOR LONG FLARE VERSION37 ±1145.5 ±29 ±1 TYP.25°25°147.5 22 ENTRIES MAX.Ex de SHORT FLARE VERSIONWITH OPTIONAL SWIVEL BRACKETFOR Ex d UNIT, POSITION 3 IS USED IF ONLY1 x M20 or 1 x 1/2" NPT ENTRY IS REQUIREDALL DIMENSIONS ARE COMMON TO ALL UNIT VARIATIONS UNLESS OTHERWISE STATEDALL DIMENSIONS ARE IN MILLIMETRES5.0 MaintenanceDuring the working life of the unit, it should require little or no maintenance. GRP will resist attack by most acids, alkalisand chemicals and is as resistant to concentrated acids and alkalis as most metal products.However, if abnormal or unusual environmental conditions occur due to plant damage or accident etc., then visualinspection is recommended.See below diagram for details of the flameproof joints found in the unit. WARNING! – The flameproof joints detailedbelow are not intended to be repaired.FLAMEPATH - 9.5 MIN.INSIDE SCREW HOLESEx d COVER/ENCLOSUREFLAMEPATHGLAND ENTRY18 MIN. WALL THICKNESSUP TO 2 POSITIONSCABLE ENTRYDETAIL