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Siemens 3WL1340-4AA32-5FF4-Z Fixed-Mount Circuit Breaker

Siemens 3WL1340-4AA32-5FF4-Z fixed-mount 3-pole circuit breaker.

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ManufacturerSiemens

Part number3WL1340-4AA32-5FF4-Z

Type Fixed-mount non-automatic circuit breaker

Poles 3

Size III

Rated Current (In) 4000A

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Fixed-mount design Non-automatic operation 3-pole configuration High interrupting capacity (100kA) 4000A rating Size III frame Rear horizontal connection

Product description

The Siemens 3WL1340-4AA32-5FF4-Z is a 3-pole, size III, fixed-mount, non-automatic circuit breaker rated for 4000A at up to 690V AC (50/60Hz). It offers a substantial interrupting capacity (Icu) of 100kA at 500V and features horizontal rear connections.

This high-capacity circuit breaker is designed for critical industrial power distribution applications where robust fault current protection is essential. Its fixed-mount design ensures a secure and permanent installation within switchgear and control panels.

Stanlo Automation, a veteran-owned provider of surplus industrial automation parts, offers the Siemens 3WL1340-4AA32-5FF4-Z. We deliver quality components and reliable service to support your industrial needs.

Technical specifications

Type	Fixed-mount non-automatic circuit breaker
Poles	3
Size	III
Rated Current (In)	4000A
Max Voltage	690V AC
Frequency	50/60Hz
Interrupting Capacity (Icu)	100kA at 500V
Connection	Rear horizontal

Common applications

Industrial power distribution

Switchgear

High-capacity systems

Motor control

Plant engineering

Automation panels

Compatible systems

Compatible with Siemens 3WL series fixed-mount installations and compatible overcurrent protection devices.

Also known as

Siemens 3WL 4000A breaker 3WL1340 fixed mount Siemens industrial power breaker

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

As a non-automatic breaker, this unit requires a separate overcurrent protection device or manual operation for disconnection.

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Frequently asked questions

What is the primary application for the Siemens 3WL1340-4AA32-5FF4-Z circuit breaker?

The Siemens 3WL1340-4AA32-5FF4-Z is primarily used in high-capacity industrial power distribution systems and main switchgear where a fixed-mount, non-automatic breaker with a 4000A rating and 100kA interrupting capacity is required.