ACB: 3WJ Accessories & Spares For Undervoltage release (UVR) – 3WJ9111-0AE06

Product Description

Siemens ACB Accessories – Undervoltage Release (UVR) – 3WJ9111-0AE06

The Siemens 3WJ9111-0AE06 is an Undervoltage Release (UVR) accessory designed for use with SENTRON 3WJ Air Circuit Breakers (ACB). It provides a critical safety function by ensuring that the breaker trips automatically when the supply voltage drops below a defined level, preventing unsafe restart conditions and protecting connected equipment.

This UVR is widely used in main LT panels, power distribution systems, and critical industrial installations where controlled shutdown and safety interlocking are required.

Key Features

• Siemens SENTRON ACB accessory
• Part Number: 3WJ9111-0AE06
• Type: Undervoltage Release (UVR)
• Suitable for 3WJ series Air Circuit Breakers
• Operating voltage: 220–240V AC / 220–250V DC
• Instantaneous tripping time approx. ≤ 80 ms (depending on variant)
• Ensures breaker trips during voltage dip or power failure
• Prevents accidental restart after power restoration
• Compact plug-in accessory design
• High reliability for industrial switchgear systems
• Complies with IEC safety requirements for LV switchgear systems