The Siemens SENTRON 3LD5 Switch Disconnector (SKU: 3LD5210-0TK13) is a three-pole molded-case switch disconnector engineered for use as an emergency-off or main switch in industrial power distribution systems. Certified to UL 489, UL 60947-4-1, and IEC 60947-3 standards, this device ensures global compatibility, safety, and performance reliability. With a rated operational current of 60 A and a short-circuit current rating (SCCR) of up to 50 kA at 480 V AC, it provides dependable isolation and protection for machinery and control panels operating in demanding industrial environments.
This switch disconnector is ideal for use as a main disconnect or emergency-off switch in industrial control panels, machinery, and power distribution systems. It is particularly suited for manufacturing plants, process industries, and energy distribution networks that demand high reliability, operator safety, and compliance with international electrical protection standards.
| Colour control element | Red |
| Degree of protection (IP), front side | IP65 |
| Degree of protection (NEMA) | Other |
| Depth | 408 mm |
| Device construction | Built-in device fixed built-in technique |
| Height | 106 mm |
| Interlockable | Yes |
| Max. rated operation voltage Ue AC | 690 V |
| Number of poles | 3 |
| Number of switches | 1 |
| Rated operation power at AC-23, 400 V | 30 kW |
| Rated operation power at AC-3, 400 V | 30 kW |
| Rated permanent current at AC-21, 400 V | 63 A |
| Rated permanent current at AC-23, 400 V | 63 A |
| Rated permanent current Iu | 63 A |
| Rated short-time withstand current lcw | 2 kA |
| Suitable for floor mounting | Yes |
| Suitable for front mounting 4-hole | Yes |
| Type of control element | Door coupling rotary drive |
| Type of electrical connection of main circuit | Frame clamp |
| Version as emergency stop installation | Yes |
| Version as main switch | Yes |
| Version as maintenance-/service switch | Yes |
| Version as safety switch | Yes |
| Width | 75 mm |
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