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Siemens 3VT9516-6AC00 ETU for VT1600 Circuit Breakers

Siemens 3VT9516-6AC00: 3-pole ETU for VT1600, 630-1600A.

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ManufacturerSiemens

Part number3VT9516-6AC00

Product Type Electronic Trip Unit (ETU)

Poles 3-pole

Protection LI (Long-time & Instantaneous)

Overload Protection (Ir) 630-1600A

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CAGE: 9NK75

Microprocessor-controlled Adjustable LI protection Thermal memory with disable option LED status indicator Screw terminals

Product description

The Siemens 3VT9516-6AC00 is a 3-pole Electronic Trip Unit (ETU) for the VT1600 series circuit breakers. It provides advanced system protection with LI (long-time and instantaneous) protection, featuring adjustable overload protection (Ir) from 630A to 1600A and short-circuit protection (Im) from 2kA to 20kA. This unit uses screw terminals for connection.

This ETU is designed for sophisticated protection of electrical systems, transformers, generators, and motors. It offers precise and adjustable tripping characteristics, allowing for customized protection schemes to prevent damage from overloads and short circuits in industrial power distribution and motor control applications.

Stanlo Automation, a veteran-owned surplus distributor, is your trusted source for industrial automation components like the Siemens 3VT9516-6AC00. We ensure quality and availability, providing reliable solutions to keep your operations running efficiently.

Technical specifications

Product Type	Electronic Trip Unit (ETU)
Poles	3-pole
Protection	LI (Long-time & Instantaneous)
Overload Protection (Ir)	630-1600A
Short-Circuit Protection (Im)	2-20kA
Connection	Screw Terminal
Compatibility	Siemens VT1600

Common applications

Industrial Power Distribution

Motor Protection

Generator Protection

Transformer Protection

Switchgear

Compatible systems

Siemens VT1600 Circuit Breakers

Also known as

Siemens SENTRON 3VT9516-6AC00 Siemens VT1600 ETU Siemens LI Trip Unit

Replaces / compatible with

This ETU is designed as a protection module for Siemens VT1600 series circuit breakers.

Technical note

Expert tip

The thermal memory feature in the 3VT9516-6AC00 ETU can be disabled, allowing the thermal release function to remain active even after temporary overloads, for continuous monitoring.

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Frequently asked questions

What does 'LI' protection mean for the Siemens 3VT9516-6AC00 ETU?

LI protection in the 3VT9516-6AC00 ETU stands for Long-time and Instantaneous protection. 'Long-time' (Ir) handles sustained overcurrents, while 'Instantaneous' (Im) provides rapid response to severe short circuits.