3LD2704-0TK51

The Siemens 3LD2704-0TK51 is a disconnector switch serving as a main isolator, expertly engineered for reliable isolation in electrical systems. It features three poles, permitting a maximum operational current of 100 A at an AC-21 application rated for up to 690V. This switch is capable of handling 37 kW of power in AC-23 applications when operating at 400V.

The installation is streamlined through a front-mounting design supported by a four-hole attachment configuration, which enhances alignment during setup. For user convenience, the device features a black rotary actuator for the operating handle, enabling straightforward manual control.

Electrical characteristics include an insulation voltage rated up to 690 V and a surge withstand voltage of 6 kV, ensuring resilience against transient voltages in industrial settings. The switch complies with various NEMA ratings, including 1, 3R, 4X, and 12, indicating its suitability for diverse environmental conditions.

With a short-circuit withstand rating of 50 kA when paired with a gG fuse at 690V, the 3LD2704-0TK51 provides robust protection against overcurrent conditions. The electrical durability of the device is rated at 6,000 cycles in AC-23 duty at 690V and boasts a mechanical lifespan of up to 100,000 operations.

In terms of operational capability, it can handle a maximum switching frequency of up to 50 operations per hour. Adapting to varied environments, the unit functions effectively within a permissible temperature range of -25°C to 55°C.