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Siemens 3LD3250-1TK11
3LD3 switch disconnector, Iu 32 A main switch 3-pole rated operational power for AC-23 A at 400 V 11.5 kW…
- MPN
- 3LD3250-1TK11
- Category
- Basic Devices
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- 12-month warranty (new) · 3-month (used/refurbished)
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What is the Siemens 3LD3250-1TK11?
3LD3 switch disconnector, Iu 32 A main switch 3-pole rated operational power for AC-23 A at 400 V 11.5 kW front plate mounting basic switch with center-hole mounting 22.5 mm knob-operated mechanism black 48x48 mm with auxiliary switches 1 NO + 1 NC
Specifications
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 | front mounted |
| design of the actuating element | selector switch |
| color of the actuating element | black |
| design of handle | knob-operated 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 |
| operating frequency rated value — 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 | 1.32 W |
Main circuit
| operational current — at AC-21 at 690 V rated value | 32 A |
| operational current — at AC-21 A at 240 V rated value | 32 A |
| operational current — at AC-21 A at 400 V rated value | 32 A |
| operational current — at AC-21 A at 440 V rated value | 32 A |
| operational current — at AC-23 A at 400 V rated value | 22 A |
| operating power — at AC-23 A at 240 V rated value | 6 kW |
| operating power — at AC-23 A at 400 V rated value | 12 kW |
| operating power — at AC-23 A at 440 V rated value | 11.5 kW |
| operating power — at AC-23 A at 690 V rated value | 12 kW |
| operating power — at AC-3 at 240 V rated value | 5.5 kW |
| operating power — at AC-3 at 400 V rated value | 10 kW |
| operating power — at AC-3 at 690 V rated value | 9.5 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 |
| insulation voltage of the auxiliary switch rated value | 500 V |
Suitability
| suitability for use main switch | Yes |
| suitability for use switch disconnector | Yes |
| suitability for use EMERGENCY OFF switch | No |
| suitability for use 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 |
| product extension optional — 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 |
| conditional short-circuit current with line-side fuse protection — 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 | 4.5 kA |
| let-through current with closed switch — at 440 V for combination switch + gG fuse maximum | 4.5 kA |
| let-through current with closed switch — 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 | 9 kA²·s |
| I2t value with closed switch — at 440 V for combination switch + gG fuse maximum | 9 kA²·s |
| I2t value with closed switch — at 690 V for combination switch + gG fuse maximum | 9 kA²·s |
| design of the fuse link — for short-circuit protection of the main circuit required | fuse gL/gG: 40 A |
| design of the fuse link — for short-circuit protection of the auxiliary switch required | fuse gL/gG: 10 A |
| operational current of upstream fuse rated value | 32 A |
according UL
| operational current at AC according to UL 508/UL 60947-4-1 rated value | 32 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 | 20 |
| active power [hp] at AC at 600 V according to UL 508/UL 60947-4-1 rated value | 20 |
| 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 |
Connections
| type of connectable conductor cross-sections for copper conductor — solid | 1x (2.5 to 16 mm²) |
| type of connectable conductor cross-sections for copper conductor — finely stranded with core end processing | 1x (2.5...16 mm²) |
| type of connectable conductor cross-sections for copper conductor — 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 |
| type of connectable conductor cross-sections for auxiliary contacts — finely stranded with core end processing | 2x (0.75 ... 1.5 mm²), 1x 2.5 mm² |
| type of connectable conductor cross-sections for auxiliary contacts — stranded | 2x (0.75 ... 2.5 mm²), 1x 4 mm² |
| type of electrical connection — for main current circuit | box terminal |
| type of electrical connection — for auxiliary contacts | Box terminals |
Mechanical Design
| height | 60 mm |
| width | 47 mm |
| depth | 114 mm |
| type of device | fixed mounting |
| fastening method | Built-in unit fixed-mounted version |
| fastening method — 4-hole front mounting | No |
| fastening method — front mounting with central attachment | Yes |
| fastening method — rail mounting | No |
| Net Weight | 226 g |
Environmental conditions
| ambient temperature during operation — minimum | -25 °C |
| ambient temperature during operation — maximum | 55 °C |
| ambient temperature during storage — minimum | -25 °C |
| ambient temperature during storage — maximum | 55 °C |
Downloads & documentation
Official documents from Siemens, downloaded directly from the manufacturer.
Data sheets & manuals
3LD3250-1TK11: frequently asked questions
When can 3LD3250-1TK11 be shipped?
3LD3250-1TK11 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up 3LD3250-1TK11 in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for 3LD3250-1TK11 and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for 3LD3250-1TK11, subject to availability and destination.
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