3LD2144-1TL53

Data sheet 3LD2144-1TL53 SENTRON, Switch disconnector 3LD, emergency switching-off switch, 4- pole, Iu: 25 A, operating power / at AC-23 A 400 V: 9.5 kW, floor mounting with door coupling, rotary operating mechanism, Red / yellow, central mounting 22.5 mm of the handle 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 type of the driving mechanism motor drive No General technical data number of poles 4 size of switch disconnector 2 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 1.1 W Main circuit operational current ● 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 400 V rated value 25 A ● at AC-21 A at 440 V rated value 25 A ● at AC-23 A at 400 V rated value 20 A 3LD21441TL53 Page 1/6 5/8/2024 Subject to change without notice © Copyright Siemens operating power ● at AC-23 A at 240 V rated value 5 kW ● at AC-23 A at 400 V rated value 10 kW ● at AC-23 A at 440 V rated value 9.5 kW ● at AC-23 A at 690 V rated value 10 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 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 Yes ● safety switch Yes ● maintenance/repair switch Yes Product details 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 3 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 690 V by gG fuse rated value 50 kA let-through current with closed switch ● at 240 V for combination switch + gG fuse maximum 3.5 kA ● at 440 V for combination switch + gG fuse maximum 3.5 kA ● at 690 V for combination switch + gG fuse maximum permissible 4 kA I2t value with closed switch ● at 240 V for combination switch + gG fuse maximum 4 kA2.s ● at 440 V for combination switch + gG fuse maximum 4 kA2.s ● at 690 V for combination switch + gG fuse maximum 4 kA2.s 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 operational current of upstream fuse rated value 25 A 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 609474-1 rated value 10 active power [hp] at AC at 600 V according to UL 508/UL 609474-1 rated value 15 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 3LD21441TL53 Page 2/6 5/8/2024 Subject to change without notice © Copyright Siemens type of fuse according to UL RK5 Connections AWG number as coded connectable conductor cross section solid maximum ● 8 ● 14 type of connectable conductor cross-sections for copper conductor ● solid 1x (1,5...16mm²) ● finely stranded with core end processing 1x (1,5...10mm²) ● stranded 1x (1,5...16mm²) type of connectable conductor cross-sections for auxiliary contacts ● solid lateral auxiliary switch 2x (0,75 ... 2,5mm²), 1x 4mm²; front auxiliary switch 1x (0,75 ... 2,5mm²) ● finely stranded with core end processing lateral auxiliary switch 2x (0,75 ... 1,5mm²), 1x 2,5mm²; front auxiliary switch 1x 2,5mm² ● stranded lateral auxiliary switch 2x (0,75 ... 2,5mm²), 1x 4mm²; front auxiliary switch 1x (0,75 ... 2,5mm²) type of electrical connection ● for main current circuit box terminal ● for auxiliary contacts connection terminals Mechanical Design height 83 mm width 67 mm depth 451.5 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 459 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 General Product Approval Marine / Shipping Miscellaneous other Confirmation 3LD21441TL53 Page 3/6 other Miscellaneous Environment Environmental Confirmations Environmental Confirmations 5/8/2024 Subject to change without notice © Copyright Siemens 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=3LD2144-1TL53 Service&Support (Manuals, Certificates, Characteristics, FAQs,...) https://support.industry.siemens.com/cs/ww/en/ps/3LD2144-1TL53 Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...) http://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=3LD2144-1TL53 CAx-Online-Generator http://www.siemens.com/cax Tender specifications http://www.siemens.com/specifications 3LD21441TL53 Page 4/6 5/8/2024 Subject to change without notice © Copyright Siemens 3L2 5L3 4T2 6T3 N 1L1 2T1 N -Q -C 1L1 2T1 3L2 4T2 5L3 6T3 N last modified: 3LD21441TL53 Page 5/6 N 6/20/2023 5/8/2024 Subject to change without notice © Copyright Siemens 3LD21441TL53 Page 6/6 5/8/2024 Subject to change without notice © Copyright Siemens