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Siemens 3WL1232-4CB34-4AN2 Fixed Circuit Breaker with ETU 25

Siemens 3WL1232-4CB34-4AN2 fixed 3-pole circuit breaker with ETU 25.

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ManufacturerSiemens

Part number3WL1232-4CB34-4AN2

Type Fixed-mounted circuit breaker

Poles 3

Size II

Rated Current (In) 3200A

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Fixed-mounted design ETU 25 LSI overcurrent release Motorized/manual operating mechanism High interrupting capacity (100kA) Adjustable LSI protection Front connections with dual-hole terminals

Product description

The Siemens 3WL1232-4CB34-4AN2 is a size II, fixed-mounted, 3-pole circuit breaker with a rated current (In) of 3200A, suitable for up to 690V AC (50/60Hz). It boasts a high interrupting capacity (Icu) of 100kA at 500V and features front connections with top and bottom dual-hole terminals. This unit is equipped with the ETU 25 electronic overcurrent release, offering adjustable LSI (Long-time, Short-time, Instantaneous) protection from 0.4 to 1 times the rated current, along with a motorized/manual operating mechanism and auxiliary releases.

This sophisticated circuit breaker is designed for critical applications in industrial power systems, motor control centers, and distribution panels where high breaking capacity and precise protection are paramount. The ETU 25 provides advanced fault detection and selective coordination capabilities.

Stanlo Automation, a veteran-owned business specializing in surplus industrial automation parts, offers the Siemens 3WL1232-4CB34-4AN2. We provide reliable, high-quality components at competitive prices to support your operational needs.

Technical specifications

Type	Fixed-mounted circuit breaker
Poles	3
Size	II
Rated Current (In)	3200A
Max Voltage	690V AC
Frequency	50/60Hz
Interrupting Capacity (Icu)	100kA at 500V
Connection	Front, top/bottom dual-hole
Overcurrent Release	ETU 25 LSI
Aux. Release	Shunt, Undervoltage

Common applications

Industrial power systems

Motor control centers

High fault current applications

Switchgear

Automation panels

Manufacturing plants

Compatible systems

Compatible with Siemens 3WL series fixed-mount installations and related control modules.

Also known as

Siemens 3WL breaker ETU 25 3WL1232 3200A 100kA breaker Siemens fixed mount circuit protector

Replaces / compatible with

This circuit breaker is part of the Siemens 3WL series. For specific replacement information or compatibility with older models, please consult Siemens technical documentation.

Technical note

Expert tip

The 100kA interrupting capacity makes this breaker suitable for applications in systems with high prospective short-circuit currents.

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Frequently asked questions

What are the adjustable protection features of the Siemens 3WL1232-4CB34-4AN2?

The Siemens 3WL1232-4CB34-4AN2 features the ETU 25 electronic overcurrent release with adjustable LSI (Long-time, Short-time, Instantaneous) protection. The settings can be adjusted from 0.4 to 1 times the rated current, allowing for precise fault management.