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Siemens 3LD9220-0B Neutral Conductor Leading Switch

Siemens 3LD9220-0B neutral conductor with leading switching.

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ManufacturerSiemens

Part number3LD9220-0B

Current Rating Up to 32 A

Functionality Leading switching neutral conductor

Compatibility Siemens 3LD2 switches

Type Accessory

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12-month warranty

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Veteran-owned

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Leading switching neutral Up to 32A rating For 3LD2 switches Enhances safety Ensures proper switching sequence

Product description

The Siemens 3LD9220-0B is a neutral conductor with leading switching functionality, designed as an accessory for Siemens 3LD2 main and emergency stop switches. Rated for operation up to 32A, this component ensures that the neutral conductor is switched before the phase conductors during engagement and switched after the phase conductors during disengagement. This feature is critical for safety in certain electrical configurations, particularly in systems with sensitive loads or where proper grounding sequence is paramount.

This leading neutral conductor is essential in applications requiring specific switching sequences for safety and operational integrity. It is commonly used in power distribution systems, industrial control panels, and equipment designed to meet strict electrical codes where the neutral connection must be established first and broken last to prevent voltage imbalances or potential hazards during switching operations.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3LD9220-0B. Source your essential industrial automation components from us for reliability and value.

Technical specifications

Current Rating	Up to 32 A
Functionality	Leading switching neutral conductor
Compatibility	Siemens 3LD2 switches
Type	Accessory

Common applications

Power distribution systems

Industrial control panels

Three-phase systems

Safety critical circuits

Load isolation

Compatible systems

Siemens 3LD2 switches

Also known as

Siemens 3LD9220-0B accessory 3LD2 neutral switch Siemens leading neutral conductor

Replaces / compatible with

This neutral conductor accessory is for Siemens 3LD2 main and emergency stop switches, providing the 'leading switching' function for the neutral pole.

Technical note

Expert tip

Proper integration of the 3LD9220-0B ensures that the neutral connection is always maintained during switching operations of the phase conductors, critical for safety in grounded systems.

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Frequently asked questions

What does 'leading switching' mean for the Siemens 3LD9220-0B neutral conductor?

'Leading switching' for the Siemens 3LD9220-0B means the neutral conductor is connected before the phase conductors when the switch is closed, and disconnected after the phase conductors when the switch is opened. This sequence is important for safety and system stability.