DL..K Pressure Switch Brochure - Combustion 911

DL..K · Edition 11.11 · 3Mounting directly on the fan motorTube set with diverse possible applicationsEasier diagnosis and maintenanceFilter padThe pressure switch can be installed in aspace-saving manner using the motor flangeadapter. It is not necessary to drill holes formounting. Motor flange adapter.Protection against pressure surgesFlow directionDuct connection flanges and angle connectorsconnect the pressure switch and pressuretest point with no kinks.Either a red or a blue pilot lamp, or a redgreedLED (24 V/230 V) indicates the switchingstatus of the pressure switch,ExtensionThe damping nozzle compensates for pressurefluctuations and pressure surges. A briefpressure surge occurs in the air supply linewhen igniting a burner, for example. Dampingnozzle.Clearer handling in complex installationsUsing the extension, the pressure switch canbe used on insulated and lagged ducts.Angle connectorThe angle connector reinforces the ∆p signalif it is too low for the pressure switch adjustingrange.In order to facilitate reading for pressureswitches with the same switching point setting,for example, a scale mark can be used.The scale mark can simply be plugged onand is available in different colours as a colourcoordination set.

4 · DL..K · Edition 11.11Technical dataPermitted ambient temperature in operation:Adjusting range, switching hysteresisDL..K: -15 to +85°C (+5 to +185°F),Adjusting rangeDL..KT: -40 Switching to +60°C hysteresis (-40 to +140°F).TypeDeviation from the switching point durinPa "WCStoragePaand transport temperature:"WCpursuant to EN 1854 or by agreemmin. max. min. max. min. max. min. max.DL 3,3 K 20 330 0.08 1.3-408to +85°C20(-40 to +185°F).0.03 0.08 ± 7 Pa/± 15% ± 0.028 "WCDL 3,5K 30 350 0.12 1.4 Weight: 10 200 20g (7.05 oz). 0.04 0.08 ± 5 Pa/± 15% ± 0.02 "WC/DL 4,5K 30 500 0.12 2.0 12 25 0.05 0.10 ± 5 Pa/± 15% ± 0.02 "WC/DL 5,1 K 100 510 0.4 2.0 Type 15 code 30 0.06 0.12 ± 15% ± 15%DL 8K 50 800 0.2 3.2 Code 17 30 0.07 0.12 ± 14 Pa/± Description 15% ± 0.06 "WC/DL 11K 100 1100 0.4 4.4 20 35 0.08 0.14 ± 20 Pa/± 15% ± 0.08 "WC/DL 16K 400 1600 1.6 6.4 30DL40 0.12 0.16Air±pressure15%switch± 15%DL 24K 200 2400 0.8 9.6 45 55 0.18 0.22 ± 40 Adjusting Pa/± 15% range ± 0.16 "WC/DL 40K 500 4000 2.0 16.0 70 3,3 90 0.28 0.36 ± 15% 20 – 330 Pa ± 15%Gas types: air or flue gas, no flammablegases, no aggressive gases.Micro switch to EN 61058-1, switching capacity:DL..K:24 V (min. 0.05 A) to 250 V AC(max. 5 A, with cos ϕ 0.6 = 1 A)DL..KG: 12 V (min. 0.01 A) to 250 V ACDL..KT:(max. 5 A, with cos ϕ 0.6 = 1 A)12 V (min. 0.01 A)up to 48 V DC (max. 1 A)30–240 V AC; 50/60 Hz5 A resistive or0.5 A inductive (cos ϕ 0.6)DL..KTG: < 30 V AC/DC0.1 A resistive or0.05 A inductive (cos ϕ 0.6)If the DL..KG (DL..KTG) has switched a voltage> 24 V (> 30 V) and a current > 0.1 Aat ϕ = 1 or > 0.05 A at ϕ = 0.6 once, thegold plating on the contacts will have beenburnt through. It can then only be operatedat this power rating or higher power rating.Contact gap < 3 mm (μ).Line entrance: M16 × 1.5,Cable diameter: 4.5 to 10 mm.DL..KT: 1/2” NPT conduit connection.Enclosure to IEC 60529: IP 54.Safety class II to VDE 0106-1.Diaphragm:tempered LSR diaphragm system.Max. inlet pressure p u or differential pressure:5000 Pa (20.07 “WC).3,54,55,181011162440KTG-1-3K2NTT2Electrical connection30 – 350 Pa30 – 500 Pa100 – 510 Pa50 – 800 Pa100 – 1000 Pa100 – 1100 Pa400 – 1600 Pa200 – 2400 Pa500 – 4000 PaTube connection and hand wheel for adjustmentT-productGold contactsAMP plug connectionElectrical connection via screw terminalsRed/green pilot LED 24 V DC/ACBlue pilot lamp 120 V ACBlue pilot lamp 230 V ACRed/green pilot LED 230 V ACDL..K-1 for wiring with an AMP plugsDL..K-3 for wiring with screw terminalsDetailed information on thisproductwww.docuthek.com ➔ Elster KromschröderSearch term: DL..KKind of document: Technical informationContactwww.kromschroeder.com ➔ SalesElster GmbHPostfach 2809 · 49018 OsnabrückStrotheweg 1 · 49504 Lotte (Büren)GermanyT +49 541 1214-0F +49 541 1214-370info@kromschroeder.comwww.kromschroeder.comwww.elster.comWe reserve the right to make technical modificationsin the interests of progress.Copyright © 2011 Elster GroupAll rights reserved.03250436

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