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Siemens 3WL5220-4CB34-1AM2-Z Fixed-Mounted UL489 Circuit Breaker

Siemens 3WL5220-4CB34-1AM2-Z UL489 fixed circuit breaker

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ManufacturerSiemens

Part number3WL5220-4CB34-1AM2-Z

Poles 3

Approval UL489

BG II

In 2000A AC 50/60Hz

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UL489 approved Front connection with dual-hole terminals 2000A rating 100kA breaking capacity 3-pole configuration BG II size

Product description

The Siemens 3WL5220-4CB34-1AM2-Z is a high-performance, fixed-mounted circuit breaker approved to UL489 standards. This 3-pole unit (BG II) has a rated current (In) of 2000A (AC 50/60Hz). It meets IEC requirements up to 690V with a significant breaking capacity of 100kA at 440V, and UL requirements up to 600V with 100kA at 480V. It features front connections with dual-hole terminals at the top and bottom.

This circuit breaker is designed for demanding industrial applications where high current and fault current levels are present. It is ideal for main power distribution, large motor protection, and critical equipment safeguarding in sectors like heavy manufacturing, mining, and energy.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3WL5220-4CB34-1AM2-Z. Secure reliable and quality components for your automation needs from our extensive inventory.

Technical specifications

Poles	3
Approval	UL489
BG	II
In	2000A AC 50/60Hz
IEC Voltage	to 690V
IEC Icu	100kA at 440V
UL Voltage	to 600V
UL Icu	100kA at 480V
Connection	Front, top/bottom dual-hole

Common applications

Industrial power distribution

Heavy manufacturing

Mining operations

Energy sector

Large motor protection

Critical equipment safeguarding

Compatible systems

Siemens 3WL Series switchgear

Also known as

3WL5220 breaker Siemens 2000A UL489 3WL BG II front connect

Replaces / compatible with

This circuit breaker is suitable for replacing existing 2000A, 3-pole UL489 compliant breakers within the Siemens 3WL series or equivalent systems.

Technical note

Expert tip

Ensure that the front-mounted dual-hole terminals are torqued to the manufacturer's specifications to prevent overheating and ensure reliable connection.

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Frequently asked questions

What are the front connection specifications for the Siemens 3WL5220-4CB34-1AM2-Z circuit breaker?

The Siemens 3WL5220-4CB34-1AM2-Z features front connections at the top and bottom, utilizing dual-hole terminals for secure and robust cable termination.