Authenticity and condition
Product authenticity and actual condition, including new condition when offered as new, are checked before final approval and recorded in the quotation.
Industrial automation technical reference
Siemens
3LD21441TL51Industrial disconnect switch Siemens model 3LD21441TL51
Verify the part number and specifications; the image alone does not establish suitability.
- ARAN VISION reference
- AV-FEED-1Q2JQS9
- Category
- Industrial electrical equipment
- Manufacturer sourcing lead time
- Manufacturer confirmation required
Delivery to your location is confirmed separately.
- Documents / datasheets
- ARAN VISION specification sheet
Technical specifications
- protection class IP
- IP65
- protection class IP on the front
- IP65
- power loss [W] for rated value of the current at AC in hot operating state per pole
- 0.6 W
- Height
- 83 mm
- Width
- 67 mm
- Depth
- 452 mm
- rail mounting
- Yes
- Net weight
- 459 g
- 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
- number of poles
- 4
- size of switch disconnector
- 2
- mechanical service life (operating cycles) typical
- 100 000
- at AC-23 A at 690 V
- 6 000
- operating frequency maximum
- 50 1/h
- degree of pollution
- 3
- insulation voltage rated value
- 690 V
- surge voltage resistance rated value
- 6 kV
- at AC rated value
- 690 V
- minimum
- 50 Hz
- maximum
- 60 Hz
- degree of protection NEMA rating
- 1, 3R, 4X, 12
- 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
- at AC-23 A at 240 V rated value
- 5 kW
- at AC-23 A at 440 V rated value
- 9.5 kW
Documents / datasheets
View / print the ARAN VISION specification sheetManufacturer datasheetOfficial manufacturer source · Siemens
Source reviewed: 2026-10-24
Description
Industrial disconnect switch Siemens part number 3LD21441TL51; power loss [W] for rated value of the current at AC in hot operating state per pole: 0.6 W; operating frequency maximum: 50 1/h; insulation voltage rated value: 690 V. Technical specifications, condition and supply feasibility are checked before ordering.
Condition and order verification
Matching technical version
The part number, revision, firmware or version is checked against your requirements. Apparently similar products may differ in price because of their version or condition.
Delivery estimate before ordering
Specialist products have a lead time. The valid delivery estimate is stated in the quotation after checking availability and specifications.
Products in the same technical family
Category similarity does not establish compatibility or replacement suitability.
3LD20220TK13Industrial disconnect switch Siemens model 3LD20220TK13
power loss [W] for rated value of the current at AC in hot operating state per pole: 0.33 Woperating frequency maximum: 50 1/h
3LD21641TC51Industrial disconnect switch Siemens model 3LD21641TC51
power loss [W] for rated value of the current at AC in hot operating state per pole: 0.6 Woperating frequency maximum: 50 1/h
3LD22031TL51Industrial disconnect switch Siemens model 3LD22031TL51
power loss [W] for rated value of the current at AC in hot operating state per pole: 0.98 Woperating frequency maximum: 50 1/h