3LD3148-0TK51

Data sheet 3LD3148-0TK51 Load disconnector 3LD3, Iu 25 A Main switch 3-pole Rated operating capacity at AC-23 A at 400V 9.0kW 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 3LD Switch disconnector design of the product Main switch display version / for switch position indicator manual operation 1 ON - 0 OFF design of the actuating element Short rotary knob 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 type of device fixed mounting type of switch Floor mounting with door coupling mechanical service life (switching cycles) / typical 100 000 electrical endurance (switching cycles) ● at AC-23 A / at 690 V 6 000 I2t value / with closed switch / at 690 V / for combination switch + gG fuse / maximum 4 kA2.s let-through I2t value / with closed switch / at 440 V / for combination switch + gG fuse / maximum 4 kA2.s operating frequency / maximum 50 1/h Voltage insulation voltage / rated value 690 V surge voltage resistance / rated value 6 kV 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 1.1 W ● per conductor / typical 1W Current operational current ● at 40 °C / rated value 25 A ● at 45 °C / rated value 25 A ● at 50 °C / rated value 25 A ● at 55 °C / rated value 25 A 3LD31480TK51 Page 1/5 7/8/2022 Subject to change without notice © Copyright Siemens ● at AC / rated value 25 A ● at AC-23 A / at 400 V / rated value 20 A ● at AC-21 / at 690 V / rated value 25 A ● at AC-21 A / at 240 V / rated value 25 A ● at AC-21 A / at 440 V / rated value 25 A operational current / of upstream fuse / rated value 25 A let-through current / with closed switch ● at 440 V / for combination switch + gG fuse / maximum 3.5 kA ● at 690 V / for combination switch + gG fuse / maximum permissible 4 kA Main circuit operating power ● at AC-23 A / at 240 V / rated value 4 kW ● at AC-23 A / at 400 V / rated value 10 kW ● at AC-23 A / at 440 V / rated value 9 kW ● at AC-23 A / at 690 V / rated value 9 kW ● at AC-3 / at 240 V / rated value 4 kW ● at AC-3 / at 400 V / rated value 8 kW ● at AC-3 / at 690 V / rated value 7.5 kW operational current / rated value 25 A 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 insulation voltage / of the auxiliary switch / rated value 500 V Suitability suitability for use ● main switch Yes ● switch disconnector Yes ● EMERGENCY OFF switch No ● safety switch Yes ● maintenance/repair switch Yes Appearance color / of the actuating element black Product details product feature ● can be locked into OFF position Yes number of bracket locks / maximum 3 hasp thickness / of the bracket locks / minimum 4 mm hasp thickness / of the bracket locks / maximum 8 mm special product feature Can be locked in zero position product extension / optional ● motor drive No ● voltage trigger No 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 according UL operational current / at AC / according to UL 508/UL 60947-4-1 / rated value 25 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 60947-4-1 / rated value 10 active power [hp] / at AC / at 600 V / according to UL 508/UL 60947-4-1 / rated value 15 3LD31480TK51 Page 2/5 7/8/2022 Subject to change without notice © Copyright Siemens short-time withstand current (SCCR) / at 600 V / according to UL 508/UL 60947-4-1 5 kA continuous current / of upstream fuse / according to UL / rated value 50 A type of fuse / according to UL RK5 Number 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 Connections AWG number / as coded connectable conductor cross section / solid ● maximum 6 ● minimum 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 Requirements design of the fuse link ● for short-circuit protection of the main circuit / required fuse gL/gG: 25 A ● for short-circuit protection of the auxiliary switch / required fuse gL/gG: 10 A Mechanical Design height 60 mm width 36 mm depth 380 mm 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 General Product Approval Declaration of Conformity Confirmation other 3LD31480TK51 Page 3/5 7/8/2022 Subject to change without notice © Copyright Siemens Miscellaneous Further information Information- and Downloadcenter (Catalogs, Brochures,…) http://www.siemens.com/lowvoltage/catalogs Industry Mall (Online 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