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Siemens 3WL1116-3CB34-4AS2-Z 1600A Fixed-Mounted Circuit Breaker

Siemens 3WL1116-3CB34-4AS2-Z 1600A 3-Pole Air Circuit Breaker

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ManufacturerSiemens

Part number3WL1116-3CB34-4AS2-Z

Type Air Circuit Breaker

Manufacturer Siemens

Series 3WL

Poles 3

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3-pole air circuit breaker 1600A nominal current High breaking capacity (66kA at 500V) Fixed-mounted for easy installation Front connections for flexibility Suitable for 690V AC systems

Product description

The Siemens 3WL1116-3CB34-4AS2-Z is a 3-pole, fixed-mounted air circuit breaker designed for robust power distribution and protection. It belongs to size I of the 3WL series, with a nominal current (In) of 1600A and a breaking capacity (Icu) of 66kA at 500V. This breaker features front connections at the top and bottom with dual-hole terminals, ensuring secure and reliable electrical connections.

This circuit breaker is suitable for AC power systems operating at 50/60 Hz and up to 690V. It is engineered for applications requiring high-performance circuit protection in industrial facilities, power generation, and distribution networks. The fixed-mounted design simplifies installation in control cabinets and switchgear.

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Technical specifications

Type	Air Circuit Breaker
Manufacturer	Siemens
Series	3WL
Poles	3
Size	I
In	1600A
Ue	Up to 690V AC
Frequency	50/60 Hz
Icu	66kA at 500V
Mounting	Fixed-mounted
Connection	Front (Top/Bottom), Dual-hole

Common applications

Power distribution

Industrial switchgear

Motor control centers

Data centers

Power generation

Electrical protection

Compatible systems

IEC 60947-2 standards Siemens switchgear assemblies Industrial power distribution systems 690V AC electrical networks

Also known as

Siemens 3WL Circuit Breaker 1600A Air Breaker 3-Pole 690V Breaker Siemens Switchgear

Replaces / compatible with

This 1600A circuit breaker is designed to replace older Siemens 3WL series breakers or other IEC-compliant air circuit breakers of similar rating and physical dimensions. It offers reliable protection for distribution systems.

Technical note

Expert tip

The fixed-mounted design means this breaker is intended for permanent installation within switchgear assemblies and is not designed for draw-out replacement.

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Frequently asked questions

What is the rated breaking capacity of the Siemens 3WL1116-3CB34-4AS2-Z circuit breaker?

The Siemens 3WL1116-3CB34-4AS2-Z circuit breaker has a rated ultimate breaking capacity (Icu) of 66 kA at 500V AC. This ensures it can safely interrupt fault currents to protect electrical equipment and systems.