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3LD2217-1TL11
Siemens 3LD2217-1TL11 available at EU Automation. Get in touch today for a quick price.
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens 3LD2217-1TL11 is a SENTRON 3LD switch disconnector designed for dependable mains isolation and load switching in industrial control panels and electrical assemblies. This 4-pole main switch is rated at 32 A (Iu) with an operating power of 11.5 kW at AC-23A, 400 V, making it well suited to isolating three-phase supplies with a neutral where required.
Built for panel applications, it features floor mounting with door coupling and a defeatable black knob-operated mechanism with a clear 1 ON / 0 OFF position indication. The front of the operating mechanism is rated to IP65, helping protect the actuator area against dust and water ingress. For secure isolation procedures, the switch can be locked in the OFF position (up to three padlocks, 4–6 mm hasp thickness). Typical applications include incoming isolators on distribution boards, machine control cabinets, and maintenance/repair isolation points where robust, repeatable switching is required.
Built for panel applications, it features floor mounting with door coupling and a defeatable black knob-operated mechanism with a clear 1 ON / 0 OFF position indication. The front of the operating mechanism is rated to IP65, helping protect the actuator area against dust and water ingress. For secure isolation procedures, the switch can be locked in the OFF position (up to three padlocks, 4–6 mm hasp thickness). Typical applications include incoming isolators on distribution boards, machine control cabinets, and maintenance/repair isolation points where robust, repeatable switching is required.
| Specification | Description |
|---|---|
| Manufacturer | Siemens |
| Part Number | 3LD2217-1TL11 |
| Alternative Part Number | 3LD22171TL11 |
| Product Range / Brand | SENTRON 3LD |
| Product Type | Switch disconnector (main switch) |
| Poles | 4-pole |
| Switch Position Indication | 1 (ON) / 0 (OFF) |
| Rated Operational Current (Iu) | 32 A |
| Rated Operating Voltage (AC, 50/60 Hz) | 690 V |
| Insulation Voltage (Ui) | 690 V |
| Impulse Withstand Voltage (Uimp) | 6 kV |
| Utilisation Category / Power (AC-23A, 400 V) | 11.5 kW |
| Utilisation Category / Power (AC-3, 400 V) | 9.5 kW |
| Operating Frequency | 50–60 Hz |
| Maximum Switching Frequency | 50 operations/hour |
| Mechanical Service Life (typical) | 100,000 operating cycles |
| Electrical Endurance (AC-23A, 690 V) | 6,000 switching cycles |
| Degree of Protection | IP65 (front IP65) |
| NEMA Rating | 1, 3R, 4X, 12 |
| Mounting / Installation Type | Floor mounting with door coupling; fixed mounting (built-in unit) |
| Handle / Operating Mechanism | Knob-operated mechanism, black; defeatable door coupling |
| Handle Fixing | 4-hole mounting of the handle |
| Lockable in OFF Position | Yes (up to 3 padlocks; hasp thickness 4–6 mm) |
| Motor Drive | No |
| Voltage Trigger | No |
| Integrated Auxiliary Contacts | 0 (no NC/NO/CO contacts fitted as standard) |
| Maximum Attachable Auxiliary Contacts | Up to 2 NC and up to 3 NO (0 CO) |
| Auxiliary Circuit Ratings (where fitted) | Max 500 V AC; 10 A continuous current; 500 V insulation voltage |
| Connection Type (Main Circuit) | Box terminal |
| Connection Type (Auxiliary) | Connection terminals |
| Connectable Conductor Cross-Section (Main, Cu) | Solid/stranded: 1.5–16 mm²; finely stranded with end sleeve: up to 10 mm² |
| Short-Circuit Protection (recommended fuse) | gL/gG: 40 A (main circuit); gL/gG: 10 A (auxiliary) |
| Conditional Short-Circuit Current (690 V with gG fuse) | 50 kA |
| Short-Time Withstand Current (Icw, 1 s) | 640 A |
| Pollution Degree | 3 |
| Ambient Temperature (operation) | -25 to +55 °C |
| Dimensions (W × H × D) | 67 mm × 79 mm × 385 mm |
| Net Weight | 448 g |
| Part Description | Siemens SENTRON 3LD2217-1TL11 is a 4-pole, 32 A switch disconnector designed for use as a main isolator in low-voltage panels. It features a black, defeatable door-coupled rotary knob with clear ON/OFF indication, robust IP65 front protection, and fixed mounting with 4-hole handle fixing for straightforward panel integration. |
What is this device used for?
It is a SENTRON 3LD switch disconnector designed for isolating and switching power circuits. It is commonly applied as a main switch or maintenance/repair switch in electrical panels.
Is it suitable for use as an EMERGENCY OFF switch?
No. This device is intended as a main switch / switch disconnector and is not specified for EMERGENCY OFF use.
How many poles does it have?
It is a 4-pole switch disconnector, suitable for switching three phases plus neutral where required.
What is the rated current?
The rated operational current is 32 A (Iu).
What voltage range is it designed for?
It is designed for AC systems up to 690 V (50/60 Hz), with an insulation voltage rated at 690 V.
What motor power can it switch at 400 V?
Typical service power ratings include 11.5 kW at 400 V in AC-23A duty and 9.5 kW at 400 V in AC-3 duty (values may be listed as 12 kW and 10 kW respectively in some documentation revisions).
What is the ingress protection rating?
The device is rated IP65, with IP65 protection on the front as well.
Does it have a door-coupling operating mechanism?
Yes. It is supplied as a floor-mounting type with door coupling and a defeatable knob-operated mechanism (black).
Can the handle be locked in the OFF position?
Yes. It can be locked in the 0 (OFF) position with up to 3 padlocks; acceptable hasp thickness is 4 to 6 mm.
Are auxiliary contacts included?
No auxiliary contacts are fitted as standard (0 NO / 0 NC / 0 changeover), but auxiliary contact blocks can be added up to a maximum of 3 NO and 2 NC (depending on accessory configuration).
What type of terminals does it use, and what cable sizes can be connected?
It uses box terminals for the main circuit. Typical connectable copper conductor sizes are 1.5 to 16 mm² (solid/stranded) and up to 10 mm² for finely stranded with end processing (ferrules).
What short-circuit protection is recommended?
For short-circuit protection of the main circuit, a gL/gG 40 A fuse is specified as required. If an auxiliary switch is used, a gL/gG 10 A fuse is specified for that auxiliary circuit.
What are the short-circuit performance ratings?
With suitable line-side fuse protection, the conditional short-circuit current is rated up to 50 kA at 690 V (by gG fuse).
What is the maximum switching frequency?
The maximum operating frequency is 50 operations per hour.
What is the expected mechanical and electrical endurance?
Typical mechanical service life is 100,000 switching cycles. Electrical endurance is specified as 6,000 cycles at AC-23A and 690 V.
What is the operating temperature range?
The typical ambient operating range is -25 °C to +55 °C.
What are the approximate dimensions and weight?
Typical dimensions are 79 mm (H) x 67 mm (W) x 385 mm (D), with a net weight of approximately 448 g.
Does it support a motor drive or voltage trigger option?
No. This configuration does not include motor drive or a voltage trigger option.
How is the switch position indicated?
The manual position indicator shows 1 (ON) and 0 (OFF).
What enclosure standards does it align with beyond IP rating?
In addition to IP65, it is commonly listed with NEMA enclosure equivalence ratings of 1, 3R, 4X, and 12 (when correctly installed as part of an assembly).
- Main isolator for low-voltage control panels, providing a clear ON/OFF disconnection point for incoming supply
- Door-coupled disconnect switch for enclosed cabinets, allowing external operation of the isolator without opening the panel
- Local isolation for three-phase machinery with neutral switching (4-pole), such as packaging, processing, and conveying equipment
- Maintenance isolation switch on industrial skids and modular assemblies to enable safe separation from the mains during planned work
- Switch-disconnector for motor feeder circuits where manual isolation is required at the panel or machine level
- Panel-builder standard main switch for OEM electrical cabinets, supporting consistent isolator specification across builds
- Isolation point for auxiliary power distribution within a cabinet (e.g., branch supplies to subassemblies) where a lockable OFF position is needed
- General-purpose disconnect in harsh or washdown-adjacent environments where a high front protection rating is beneficial for the operating handle area
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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