For additional discounts, please contact our five-star sales manager Lisa Lin.

Description：

This is a door-coupling rotary operating mechanism accessory for SENTRON VL160X, VL160 and VL250 moulded case circuit breakers. The mechanism is designed for installation in enclosure doors and provides a complete standard door operating assembly based on the 8UC7 new design. It enables external operation of the installed circuit breaker via a rotary handle mounted on the panel door, allowing switching without opening the enclosure. The assembly includes a titanium grey handle and light grey masking plate and is intended for integration into low-voltage distribution panels and switchboards using VL series circuit breakers.

Specification：

Frequently asked questions

Q1: What is the Siemens 3VL9300-3HF05 Circuit Breaker used for?

A1: The Siemens 3VL9300-3HF05 Circuit Breaker is part of the SENTRON product family and is designed to provide reliable protection against overloads and short circuits in industrial and commercial electrical distribution systems. It helps ensure the safe operation of electrical equipment and power networks.

Q2: Which Siemens product family does the 3VL9300-3HF05 belong to?

A2: The 3VL9300-3HF05 belongs to the Siemens SENTRON family, a comprehensive range of low-voltage protection and power distribution products.

Q3: What is the operating temperature range of the 3VL9300-3HF05 circuit breaker?

A3: The 3VL9300-3HF05 circuit breaker operates within a temperature range of -25°C to +70°C (-13°F to +158°F), making it suitable for a wide variety of industrial environments.

Q4: What is the 3VL9300-3HF05 storage temperature range?

A4: The 3VL9300-3HF05 recommended storage temperature range is -40°C to +85°C (-40°F to +185°F), ensuring safe transportation and long-term storage before installation.

Q5: What is the 3VL9300-3HF05 allowable relative humidity?

A5: The 3VL9300-3HF05 breaker is designed to operate in environments with 5% to 95% relative humidity (non-condensing).

Product Applications

Automotive manufacturing and heavy industry plants: Used for power distribution cabinets in automotive stamping, welding, and final assembly lines for power cut-off and safety isolation of high-power equipment.

Steel mills and metallurgical workshops: Provide electrical protection for high-frequency inverters and motor control centers (MCCs) in harsh environments with high temperatures and high dust levels, in conjunction with highly reliable VL circuit breakers.

Chemical and petroleum control centers: Installed in explosion-proof distribution cabinets or isolated explosion-proof machine rooms, providing remote door control isolation that meets industrial safety standards (such as the newly designed 8UC7 handle).

Intelligent warehousing and logistics centers: Used for power supply and disconnection control of large sorting conveyor lines and stacker crane main distribution boxes.

Water treatment and paper mills: Controls the start and stop of on-site pump sets and fan distribution cabinets, and provides door lock linkage functions to prevent misoperation.