3VJ External accessories - 3VJ9218-0UV36

Product Description

3VJ External Accessories – 3VJ9218-0UV36

The Siemens 3VJ9218-0UV36 is an undervoltage release (UVR) accessory designed for the 3VJ series MCCB (Molded Case Circuit Breaker). It is used to ensure automatic tripping of the circuit breaker when the control supply voltage drops below a safe level, providing critical protection against unsafe restart conditions and voltage failure scenarios.

This accessory is suitable for 3VJ11 (125A) and 3VJ12 (250A) frame MCCBs and operates on 220 V AC, 50/60 Hz control supply. When the supply voltage falls below the defined threshold or is completely lost, the undervoltage release automatically trips the breaker, ensuring the connected load is safely disconnected.

The 3VJ9218-0UV36 is widely used in LT panels, MCCs, PCCs, industrial automation systems, fire safety circuits, and critical power distribution networks, where safe shutdown during voltage failure is essential.

🔹 Key Features

• Siemens 3VJ external accessory
• Model: 3VJ9218-0UV36
• Type: Undervoltage Release (UVR)
• Compatible with 3VJ11 / 3VJ12 MCCB series
• Control supply: 220 V AC, 50/60 Hz
• Ensures automatic tripping on voltage drop
• Prevents unsafe restart after power failure
• Enhances electrical safety and system protection
• Reliable electromagnetic operating mechanism
• Suitable for automation and safety interlocking systems
• Compact plug-in design for MCCB integration
• High durability for industrial environments