3LD3048-0TK51

Data sheet 3LD3048-0TK51 Load disconnector 3LD3, Iu 16 A Main switch 3-pole Rated operating capacity at AC-23 A at 400V 7.5kW floor mounting Basic switch with door coupling Central hole mounting 22.5mm Rotating drive black 66 x 66 mm Model product brand name SENTRON product designation Switch disconnector design of the product Main 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 black design of handle rotary operating mechanism, black type of the driving mechanism motor drive No General technical data number of poles 3 number of poles note 3 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 0.5 W Main circuit operational current ● at AC-21 at 690 V rated value 16 A ● at AC-21 A at 240 V rated value 16 A ● at AC-21 A at 400 V rated value 16 A ● at AC-21 A at 440 V rated value 16 A ● at AC-23 A at 400 V rated value 16 A 3LD30480TK51 Page 1/5 4/30/2024 Subject to change without notice © Copyright Siemens operating power ● at AC-23 A at 240 V rated value 3 kW ● at AC-23 A at 400 V rated value 8 kW ● at AC-23 A at 440 V rated value 7.5 kW ● at AC-23 A at 690 V rated value 8 kW ● at AC-3 at 240 V rated value 3 kW ● at AC-3 at 400 V rated value 6 kW ● at AC-3 at 690 V rated value 5.5 kW Auxiliary circuit number of CO contacts for auxiliary contacts 0 number of NC contacts for auxiliary contacts 0 number of NO contacts for auxiliary contacts 0 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 No ● 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 3 hasp thickness of the bracket locks 4 ... 8 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 3 kA ● at 440 V for combination switch + gG fuse maximum 3 kA ● at 690 V for combination switch + gG fuse maximum permissible 3 kA I2t value with closed switch ● at 240 V for combination switch + gG fuse maximum 2.5 kA2.s ● at 440 V for combination switch + gG fuse maximum 2.5 kA2.s ● at 690 V for combination switch + gG fuse maximum 3 kA2.s design of the fuse link ● for short-circuit protection of the main circuit required fuse gL/gG: 20 A ● for short-circuit protection of the auxiliary switch required fuse gL/gG: 10 A operational current of upstream fuse rated value 16 A according UL operational current at AC according to UL 508/UL 60947-4-1 rated value 16 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 7.5 active power [hp] at AC at 600 V according to UL 508/UL 609474-1 rated value 10 short-time withstand current (SCCR) at 600 V according to UL 5 kA 3LD30480TK51 Page 2/5 4/30/2024 Subject to change without notice © Copyright Siemens 508/UL 60947-4-1 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 36 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=3LD3048-0TK51 Service&Support (Manuals, Certificates, Characteristics, FAQs,...) https://support.industry.siemens.com/cs/ww/en/ps/3LD3048-0TK51 3LD30480TK51 Page 3/5 4/30/2024 Subject to change without notice © Copyright Siemens Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...) http://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=3LD3048-0TK51 CAx-Online-Generator http://www.siemens.com/cax Tender specifications http://www.siemens.com/specifications last modified: 6/20/2023 3LD30480TK51 Page 4/5 4/30/2024 Subject to change without notice © Copyright Siemens 3LD30480TK51 Page 5/5 4/30/2024 Subject to change without notice © Copyright Siemens