SIEMENS 3RV1031-4FB10 Motor Protection Circuit Breaker w/ 3RV1921-1M Auxiliary Contact USED

• Modular Siemens SIRIUS design suitable for motor control applications
• Compatible with a range of auxiliary modules and add-ons
• Engineered for reliable switching and control in industrial panels
• Durable construction for demanding automation environments
• Flexible installation configurations depending on system requirements

• Motor starter assemblies
• Industrial automation control cabinets
• OEM machinery and equipment builds
• General‑purpose switching and electrical protection
• Replacement component for Siemens SIRIUS systems

3RV1031-4FA10
3RV1031-4HA10
3RV1031-4KB10
3RV10 Series (general family reference)
SIRIUS 3RV1 Motor Control Modules

3RV10314FB10
3RV1031-4FB1O (letter O vs zero)
SIRIUS 3RV1031 Contactor
Siemens 3RV19211M
3RV1031 4FB-10