Fire damper Dimensions lindab | fire dampers WK45 b 35 Description Rectangular fire damper for air duct system that penetrate fire resistance walls or floors. With 40 mm thick closing blade made from refractory material. Casing leakage performance class C according to Standard EN1751:2014 section C.3. The damper prevents fire and smoke from spreading through the air duct system. Tested and classified in accordance with EN 1366-2 and EN 13501-3 with 500 Pa negative pressure and CE marked in accordance with EN 15650. Product code Type WK Series 45 Manual command Command B type M Position S0 indication S2 microswitches SA SC M0 MR Magnet MI MY Motorized Motor type Base (a) Height (b) MZ VSS DSS VPS DPS VGS DGS VMB VGB DMB DGB TMB TGB XYZ XYZ Rectangular fire damper Blade thickness 40 mm Manual command Manual command with magnet Without position microswitches With two position microswitches With open blade microswitch With closed blade microswitches Without magnet (only for command type “B”) With power supply interruption magnet, 24 V DC only With power supply input magnet, 24 V DC With power supply interruption magnet 230 V DC With power supply input magnet 230 V DC Siemens motor GRA 126 (24V) Siemens motor GRA 326 (230V) Siemens motor GNA 126 (24V) Siemens motor GNA 326 (230V) Siemens motor GGA 126 (24V) Siemens motor GGA 326 (230V) Belimo motor BFN24T (24V) Belimo motor BF24T (24V) Belimo motor BFN230T (230V) Belimo motor BF230T (230V) Belimo motor BFN24T-ST (24V) Belimo motor BF24T-ST (24V) Nominal dimension (mm) Nominal dimension (mm) a 35 510 a nom 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 b nom 200 250 300 350 400 450 500 550 600 650 700 750 800 Combinations of base (a) and height (b) dimensions are avail- able, not available combinations: 200×700, 250×700, 200×750, 250×750, 300×750, 350×750, 200×800, 250×800, 300×800, 350×800. It is possible to pair two dampers for bigger duct dimension. Ordering example WK45M 400 450 SAMR Mechanism type Side a Side b Control mechanism We reserve the right to make changes without prior notice 1
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