3LD2866-0TB53 | Siemens SENTRON 3LD2866‑0TB53 3‑Pole Switch Disconnector – 125 A, 45 kW, IP65 Rotary Isolator

Upgrade safety and reliability with the Siemens 3LD2866‑0TB53 Switch Disconnector from the SENTRON series. This heavy-duty 3-pole rotary isolator handles a continuous current of 125 A and delivers 45 kW switching power at 400 V (AC‑23A), ideal for demanding industrial load control . Its durable IP65-rated plastic enclosure protects against dust and moisture, while the red/yellow rotary handle ensures clear ON/OFF indication and can be locked in the OFF position for secure maintenance . Built for endurance, it withstands 100,000 mechanical cycles, resists 6 kV surges, and meets NEMA 1, 4X, and 12 standards 

FAQ
Q1: What is the purpose of the 3LD2866‑0TB53?
It functions as an emergency-stop or maintenance switch disconnector, facilitating safe isolation of heavy-duty equipment.

Q2: Is it suitable for industrial environments?
Yes, the IP65-rated enclosure ensures protection against dust, moisture, and harsh industrial conditions.

Q3: Can it be locked in the OFF position?
Yes, the rotary handle includes a lock-out feature for secure maintenance operations.

Q4: What load capacity does it support?
It supports up to 125 A continuous current and 45 kW switching power at 400 V, suitable for industrial loads.

Q5: How durable is the unit?
It offers up to 100,000 mechanical cycles and 6 kV surge resistance, meeting NEMA 1, 4X, and 12 industry standards.