Product Description

Siemens 3WT8081-6QP34-5AB2 800A 3-Pole Withdrawable Air Circuit Breaker 66kA

The Siemens 3WT8081-6QP34-5AB2 is a SENTRON 3WT8 withdrawable Air Circuit Breaker (ACB) designed for high-current low-voltage power distribution and protection applications. This configuration is specified as a 3-pole, Size 1 circuit breaker with a rated current of 800 A, suitable for operation up to 500 V AC at 50/60 Hz, with an ultimate short-circuit breaking capacity (Icu) of 66 kA at 500 V AC.

The 3WT8081-6QP34-5AB2 belongs to the Siemens 3WT8 Size 1, 800 A family. Siemens technical documentation confirms that the 3WT8 range includes 800 A withdrawable 3-pole breakers with 66 kA Icu at 500 V and high short-time withstand capability.

The withdrawable construction with guide frame is suitable for switchboards where controlled isolation, inspection, maintenance and breaker replacement are important. A withdrawable ACB can be moved between its connected and withdrawn positions according to the applicable switchgear operating procedure.

With an 800 A rated current, the breaker is suited to high-capacity electrical distribution applications such as main feeders, incomers, industrial switchboards, generator distribution and large electrical panels. Protection coordination with busbars, conductors, upstream/downstream devices and the prospective short-circuit current should be verified before installation.

The specified configuration includes a mechanical lockout device, tripped signalling switch and tripped indicators, providing useful status and operational functions for professional switchgear. The corresponding Siemens 3WT8 800 A withdrawable configurations also use the ETU37WT LSING electronic overcurrent release in applicable variants.

Technical Specifications

Siemens' 3WT8 catalogue lists the relevant 800 A Size 1 family at 66 kA Icu and 50 kA short-time withstand current at 500 V.

Key Features

• Siemens 3WT8081-6QP34-5AB2

• SENTRON 3WT8 Air Circuit Breaker

• 800 A rated current

• 3-pole (3P) configuration

• Size 1

• Withdrawable circuit-breaker construction

• Guide frame

• Suitable for applications up to 500 V AC

• 50/60 Hz AC operation

• 66 kA Icu at 500 V AC

• Mechanical lockout device

• Tripped signalling switch

• Tripped indicators

• Suitable for high-capacity electrical distribution

• Suitable for industrial switchboards

• Suitable for main feeder and incomer applications

• Professional low-voltage power protection solution

Applications

The Siemens 3WT8081-6QP34-5AB2 800A 3-pole withdrawable ACB can be considered for:

• Main low-voltage switchboards

• Main feeder applications

• Industrial power distribution

• High-current feeder protection

• Generator distribution systems

• Large manufacturing plants

• Process industries

• Commercial building power distribution

• Infrastructure power systems

• Industrial electrical switchboards

• OEM switchgear assemblies

• Critical power-distribution systems

• High-capacity electrical panels

• Power-distribution sections

• Industrial and commercial electrical infrastructure

Benefits

The 800 A rated current makes the 3WT8081-6QP34-5AB2 suitable for high-capacity low-voltage power-distribution systems where substantial electrical loads require dependable circuit protection and switching.

The 66 kA Icu at 500 V AC provides high short-circuit interruption capability for suitable high-fault-level installations. Siemens' 3WT8 technical documentation confirms this breaking-capacity level for the relevant Size 1, 800 A family. The actual prospective short-circuit current should always be evaluated at the installation point before final selection.

The 3-pole construction provides coordinated protection and switching for compatible three-phase AC systems. This makes the ACB suitable for high-capacity three-phase distribution applications including industrial switchboards, feeders and main distribution sections.

The withdrawable construction with guide frame provides operational flexibility for inspection, servicing and controlled isolation. The breaker can be withdrawn according to the manufacturer's prescribed switchgear procedure, supporting maintenance and replacement activities.

The mechanical lockout device provides an additional operational control function for defined isolation and maintenance procedures. The tripped signalling switch and tripped indicators provide useful status information for operators and maintenance personnel.

The Siemens SENTRON 3WT8 platform is designed for professional low-voltage power distribution, making this ACB relevant for OEMs, EPC contractors, panel builders, electrical contractors, system integrators and industrial maintenance teams.

For customers sourcing Siemens high-capacity ACBs across Faridabad, Delhi NCR, Noida, Gurgaon/Gurugram, Ghaziabad, Punjab, Mumbai, Pune, Ahmedabad, Hyderabad, Bengaluru/Bangalore, Chennai, Kolkata, Jaipur, Chandigarh, Ludhiana and other major industrial and commercial locations across India, the 3WT8081-6QP34-5AB2 can be considered for suitable applications.

Before installation or replacement, verify the complete MLFB configuration, overcurrent-release specification, guide-frame compatibility, busbar arrangement, prospective fault current, control requirements and switchboard dimensions.

Why Buy Siemens 3WT8081-6QP34-5AB2 from SB Smart?

SB Smart supplies Siemens ACBs, circuit breakers, switchgear and industrial electrical products for OEMs, EPC contractors, panel builders, electrical contractors, system integrators and industrial maintenance teams across India.

The Siemens 3WT8081-6QP34-5AB2 800A 3-pole withdrawable ACB is suitable for customers looking for high-capacity Siemens circuit protection for main switchboards, industrial feeders, generator systems, high-current distribution panels and infrastructure power-distribution applications.

SB Smart supports Siemens product sourcing across Faridabad, Delhi NCR, Noida, Gurgaon/Gurugram, Mumbai, Pune, Ahmedabad, Hyderabad, Bengaluru/Bangalore, Chennai, Kolkata, Chandigarh, Ludhiana and other major Indian industrial markets.

FAQs

1. What is Siemens 3WT8081-6QP34-5AB2?
It is a Siemens SENTRON 3WT8 withdrawable Air Circuit Breaker specified as a 3-pole, Size 1, 800 A breaker.

2. What is the rated current?
The rated current is 800 A.

3. What is the short-circuit breaking capacity?
The specified Icu is 66 kA at 500 V AC for the relevant 3WT8 Size 1, 800 A family.

4. What is the rated voltage?
The stated application rating is up to 500 V AC at 50/60 Hz.

5. Is this circuit breaker withdrawable?
Yes. The supplied configuration specifies a withdrawable circuit breaker with guide frame.

6. How many poles does it have?
The specified configuration is 3-pole (3P).

7. What safety and indication features are included?
The supplied configuration includes a mechanical lockout device, tripped signalling switch and tripped indicators.

8. Where can this ACB be used?
It can be considered for suitable main switchboards, industrial power distribution, high-current feeders, generator distribution systems, large electrical panels and infrastructure power-distribution applications.

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