SCHNEIDER XMLB500D2C11 Disconnect Switches

Description

SCHNEIDER XMLB500D2C11 Disconnect Switches

Schneider Electric offers a premier range of disconnect switches (also known as Switch-Disconnectors), primarily under the TeSys (for motor control), Compact NSX (for high power), and Acti9 iSW (for distribution) series. These devices are engineered to provide safe isolation of electrical circuits, ensuring power is completely cut off for maintenance or emergency stops.

Product Detailed Description

Schneider Disconnect Switches are non-automatic mechanical switches capable of making, carrying, and breaking currents under normal circuit conditions. They provide positive contact indication, meaning the handle position accurately reflects the state of the internal contacts, meeting global safety standards for isolation (IEC 60947-3).

They are available in various configurations:

• Fusible Disconnects (TeSys GS): Incorporate fuses for short-circuit protection.

• Non-Fusible Disconnects (TeSys Vario / Venty): Purely for isolation and manual switching.

• Enclosed Switches: Housed in NEMA/IP-rated boxes for outdoor or harsh environments.

Typical Technical Parameters

Specifications vary significantly between the compact iSW series and industrial TeSys units.

Product Advantages

• Safety Assurance: Designed with “Positive Contact Indication.” If the contacts are welded, the handle cannot be moved to the “OFF” position, preventing false safety signals.

• Padlockable Handles: Most models feature a rotary or toggle handle that can be locked in the “OFF” position with multiple padlocks (LOTO – Lock Out Tag Out compliance).

• High Performance: Capable of breaking highly inductive loads (like motors) under AC-23 conditions without excessive arcing.

• Modular & Flexible: Compact designs allow for DIN rail mounting in distribution boards or front-panel mounting for machinery.

• Environmental Resistance: High IP ratings (up to IP65/66 for enclosed versions) protect against dust and water jets.

Important Considerations (Precautions)

• Isolation vs. Protection: Standard non-fusible disconnect switches do not provide overcurrent or short-circuit protection. They must be paired with a circuit breaker or fuses.

• Load Breaking: Ensure the switch is rated for the specific “Utilization Category.” An AC-22 rated switch should not be used to break a stalled motor (which requires AC-23).

• Terminal Torque: Failure to tighten terminal screws to the manufacturer’s specified torque can lead to overheating and terminal meltdown.

• Arc Flash: Always wear appropriate PPE (Personal Protective Equipment) when operating high-amperage switches under load.

Product Applications

• Industrial Machinery: Used as the main “Emergency Stop” or local motor disconnect for conveyors, fans, and pumps.

• HVAC Systems: Safe isolation for rooftop air handling units and chillers during repair.

• Solar/PV Systems: DC disconnect switches used to isolate inverter inputs from solar arrays.

• Construction/Infrastructure: Used in power distribution panels to isolate specific floors or zones for maintenance.

• Data Centers: Isolation of PDU (Power Distribution Unit) branches.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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