3LD3348-1TL53

Data sheet 3LD3348-1TL53 Load disconnector 3LD3, Iu 40 A Main switch 3-pole + N Rated operating capacity at AC-23 A at 400 V 18.5 kW floor mounting Basic switch with door coupling Central hole mounting 22.5mm Rotary actuator red / yellow 66 x 66 mm with auxiliary switch 1OE + 1S Model product brand name SENTRON product designation Switch disconnector design of the product EMERGENCY-STOP switch display version for switch position indicator manual operation 1 ON - 0 OFF type of switch Floor mounting with door coupling design of the actuating element Short rotary knob color of the actuating element red design of handle rotary operating mechanism, red/yellow General technical data number of poles 4 number of poles note 4 mechanical service life (operating cycles) typical 100 000 electrical endurance (operating cycles) ● at AC-23 A at 690 V 6 000 operating frequency maximum 50 1/h degree of pollution 3 Voltage insulation voltage rated value 690 V surge voltage resistance rated value 6 kV operating voltage ● at AC rated value 690 V operating frequency rated value ● minimum 50 Hz ● maximum 60 Hz Protection class protection class IP IP65 degree of protection NEMA rating 1, 3R, 4X, 12 protection class IP on the front IP65 Dissipation power loss [W] for rated value of the current at AC in hot operating state per pole 2.5 W Main circuit operational current ● at AC-21 at 690 V rated value 40 A ● at AC-21 A at 240 V rated value 40 A ● at AC-21 A at 400 V rated value 40 A ● at AC-21 A at 440 V rated value 40 A ● at AC-23 A at 400 V rated value 36 A operating power 3LD33481TL53 Page 1/5 4/29/2024 Subject to change without notice © Copyright Siemens ● at AC-23 A at 240 V rated value 7.5 kW ● at AC-23 A at 400 V rated value 19 kW ● at AC-23 A at 440 V rated value 15 kW ● at AC-23 A at 690 V rated value 15 kW ● at AC-3 at 240 V rated value 7.5 kW ● at AC-3 at 400 V rated value 12 kW ● at AC-3 at 690 V rated value 11.5 kW Auxiliary circuit number of CO contacts for auxiliary contacts 0 number of NC contacts for auxiliary contacts 1 number of NO contacts for auxiliary contacts 1 operating voltage of auxiliary contacts at AC maximum 500 V continuous current of the auxiliary contact rated value 10 A Suitability suitability for use ● main switch Yes ● switch disconnector Yes ● EMERGENCY OFF switch Yes ● safety switch Yes ● maintenance/repair switch Yes Product details special product feature Can be locked in zero position product feature can be locked into OFF position Yes accessories product extension optional ● motor drive No ● voltage trigger No number of connectable NC contacts for auxiliary contacts attachable maximum 2 number of connectable NO contacts for auxiliary contacts attachable maximum 4 number of connectable CO contacts for auxiliary contacts attachable maximum 0 number of bracket locks maximum 2 hasp thickness of the bracket locks 4 ... 6 mm Short circuit conditional short-circuit current with line-side fuse protection ● at 440 V by gG fuse rated value 10 kA ● at 690 V by gG fuse rated value 6 kA let-through current with closed switch ● at 240 V for combination switch + gG fuse maximum 5 kA ● at 440 V for combination switch + gG fuse maximum 5 kA ● at 690 V for combination switch + gG fuse maximum permissible 5 kA I2t value with closed switch ● at 240 V for combination switch + gG fuse maximum 15 kA2.s ● at 440 V for combination switch + gG fuse maximum 15 kA2.s ● at 690 V for combination switch + gG fuse maximum 15 kA2.s design of the fuse link ● for short-circuit protection of the main circuit required fuse gL/gG: 40 A ● for short-circuit protection of the auxiliary switch required fuse gL/gG: 10 A operational current of upstream fuse rated value 40 A according UL operational current at AC according to UL 508/UL 60947-4-1 rated value 40 A operating voltage at AC at 50/60 Hz according to UL 508/UL 60947-4-1 rated value 600 V active power [hp] at AC at 480 V according to UL 508/UL 609474-1 rated value 20 active power [hp] at AC at 600 V according to UL 508/UL 609474-1 rated value 20 short-time withstand current (SCCR) at 600 V according to UL 508/UL 60947-4-1 5 kA 3LD33481TL53 Page 2/5 4/29/2024 Subject to change without notice © Copyright Siemens continuous current of upstream fuse according to UL rated value 50 A type of fuse according to UL RK5 Connections AWG number as coded connectable conductor cross section solid maximum ● 6 ● 14 type of connectable conductor cross-sections for copper conductor ● solid 1x (2.5 to 16 mm²) ● finely stranded with core end processing 1x (2.5...16 mm²) ● stranded 1x (2.5 to 16 mm²) type of connectable conductor cross-sections for auxiliary contacts ● solid 2x (0.75 ... 2.5 mm²), 1x 4 mm² ● finely stranded with core end processing 2x (0.75 ... 1.5 mm²), 1x 2.5 mm² ● stranded 2x (0.75 ... 2.5 mm²), 1x 4 mm² type of electrical connection ● for main current circuit box terminal ● for auxiliary contacts Box terminals Mechanical Design height 60 mm width 60 mm depth 380 mm type of device fixed mounting fastening method Built-in unit fixed-mounted version fastening method ● 4-hole front mounting No ● front mounting with central attachment Yes ● rail mounting Yes net weight 300 g Environmental conditions ambient temperature during operation ● minimum -25 °C ● maximum 55 °C ambient temperature during storage ● minimum -25 °C ● maximum 55 °C Approvals Certificates General Product Approval Confirmation other Confirmation Environment Miscellaneous Environmental Confirmations Environmental Confirmations Further information Information on the packaging https://support.industry.siemens.com/cs/ww/en/view/109813875 Information- and Downloadcenter (Catalogs, Brochures,…) http://www.siemens.com/lowvoltage/catalogs Industry Mall (Online ordering system) https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=3LD3348-1TL53 Service&Support (Manuals, Certificates, Characteristics, FAQs,...) https://support.industry.siemens.com/cs/ww/en/ps/3LD3348-1TL53 Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...) 3LD33481TL53 Page 3/5 4/29/2024 Subject to change without notice © Copyright Siemens http://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=3LD3348-1TL53 CAx-Online-Generator http://www.siemens.com/cax Tender specifications http://www.siemens.com/specifications last modified: 6/20/2023 3LD33481TL53 Page 4/5 4/29/2024 Subject to change without notice © Copyright Siemens 3LD33481TL53 Page 5/5 4/29/2024 Subject to change without notice © Copyright Siemens