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Siemens LGB3B100 Power Contactor — 100A, 230V AC

Name: Siemens LGB3B100
Brand: Siemens
SKU: LGB3B100
Availability: InStock

Siemens LGB3B100 Power Contactor, 100A, 230V AC coil.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

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ManufacturerSiemens

Part numberLGB3B100

Coil Voltage 230V AC

Rated Operational Current (AC-1) 100A

Rated Operational Current (AC-3, 400V) 40A

Poles 3

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230V AC coil 3 poles High current rating (100A AC-1) Robust construction Auxiliary contacts for signaling Versatile mounting options

Product description

The Siemens LGB3B100 is a robust power contactor designed for heavy-duty industrial applications. It operates with a 230V AC coil and offers a high rated operational current of 100A under AC-1 conditions. This contactor is built for reliability and durability in demanding environments.

This component is ideal for motor control, power switching, and load management in various industrial sectors including manufacturing plants, utilities, and large commercial facilities. Its capacity makes it suitable for controlling large motors and high-power circuits.

Stanlo Automation, a veteran-owned provider of surplus industrial automation parts, stocks the Siemens LGB3B100. We ensure quality and availability for your critical equipment needs.

Technical specifications

Coil Voltage	230V AC
Rated Operational Current (AC-1)	100A
Rated Operational Current (AC-3, 400V)	40A
Poles	3
Auxiliary Contacts	1 NO + 1 NC
Mounting	DIN rail or screw

Common applications

Motor control

High-power switching

Load management

Industrial automation

Power distribution

HVAC systems

Compatible systems

Industrial motor control panels Switchgear Power distribution units

Also known as

Siemens 100A Contactor LGB3B100 Contactor Siemens 3-pole contactor

Replaces / compatible with

This is a Siemens LGB3 series contactor. For specific replacement information, refer to Siemens technical documentation.

Technical note

Expert tip

The LGB3B100 is designed for switching motor loads and requires proper application of the AC-3 rating for motor starting duty.

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Frequently asked questions

What is the AC-3 current rating for the Siemens LGB3B100?

The Siemens LGB3B100 has a rated operational current of 40A for AC-3 applications at 400V. AC-3 rating is typically used for starting squirrel cage motors.