
Siemens Industrial Controls 3RB3016-2PB0 Relay
When you are hardening a motor control circuit for a heavy-starting application, the Siemens SIRIUS 3RB3016-2PB0 is the go-to technical solution. This solid-state overload relay provides an adjustable current range of 1-4amp overload protection, ensuring precision sensing that thermal bi-metal alternatives simply cannot match. Built for Size S00 contactors, it integrates seamlessly via direct mounting to 3RT2015 through 3RT2018 units. The Class 20 tripping characteristic is specifically designed for loads with longer acceleration times, offering robust phase failure protection and internal power supply stability. This Siemens motor protection device minimizes heat loss within the control cabinet, utilizing integrated current transformers to monitor line conditions. With both manual and automatic reset options and secondary 1NO + 1NC auxiliary contacts for fault signaling, this electronic overload relay ensures high system availability. It is a drop-in SIRIUS 3RB3 series component that delivers high-performance motor circuit protection for critical HVACR and industrial pump assemblies.
Key Benefits:- Electronic Precision: Provides a wide 4:1 adjustment range (1A to 4A), reducing the need for multiple inventory SKUs.
- Enhanced Duty Cycle: Features Class 20 protection, ideal for heavy-duty starting cycles where standard Class 10 relays might nuisance trip.
- Advanced Diagnostics: Equipped with a visible trip indicator, test function button, and phase unbalance detection for rapid troubleshooting.
- Space-Efficient Design: Direct-mount architecture for SIRIUS Size S00 contactors eliminates the need for additional DIN rail space or wiring.
- Can I use the 3RB3016-2PB0 for single-phase motors? Although designed primarily for three-phase systems, this relay can be used for single-phase loads if the cables are looped through all three poles in series to ensure proper current sensing and avoid phase failure tripping.
- What is the difference between Class 10 and Class 20 in this model? The -2PB0 suffix denotes a Class 20 trip curve, allowing the motor to draw higher starting current for up to 20 seconds at 6x the set current, whereas Class 10 is limited to 10 seconds.
- Does this relay require a separate control power source? No, the 3RB3016-2PB0 features an internal power supply that draws operating energy directly from the main circuit current.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Siemens Industrial Controls 3RB3016-2PB0 Relay
When you are hardening a motor control circuit for a heavy-starting application, the Siemens SIRIUS 3RB3016-2PB0 is the go-to technical solution. This solid-state overload relay provides an adjustable current range of 1-4amp overload protection, ensuring precision sensing that thermal bi-metal alternatives simply cannot match. Built for Size S00 contactors, it integrates seamlessly via direct mounting to 3RT2015 through 3RT2018 units. The Class 20 tripping characteristic is specifically designed for loads with longer acceleration times, offering robust phase failure protection and internal power supply stability. This Siemens motor protection device minimizes heat loss within the control cabinet, utilizing integrated current transformers to monitor line conditions. With both manual and automatic reset options and secondary 1NO + 1NC auxiliary contacts for fault signaling, this electronic overload relay ensures high system availability. It is a drop-in SIRIUS 3RB3 series component that delivers high-performance motor circuit protection for critical HVACR and industrial pump assemblies.
Key Benefits:- Electronic Precision: Provides a wide 4:1 adjustment range (1A to 4A), reducing the need for multiple inventory SKUs.
- Enhanced Duty Cycle: Features Class 20 protection, ideal for heavy-duty starting cycles where standard Class 10 relays might nuisance trip.
- Advanced Diagnostics: Equipped with a visible trip indicator, test function button, and phase unbalance detection for rapid troubleshooting.
- Space-Efficient Design: Direct-mount architecture for SIRIUS Size S00 contactors eliminates the need for additional DIN rail space or wiring.
- Can I use the 3RB3016-2PB0 for single-phase motors? Although designed primarily for three-phase systems, this relay can be used for single-phase loads if the cables are looped through all three poles in series to ensure proper current sensing and avoid phase failure tripping.
- What is the difference between Class 10 and Class 20 in this model? The -2PB0 suffix denotes a Class 20 trip curve, allowing the motor to draw higher starting current for up to 20 seconds at 6x the set current, whereas Class 10 is limited to 10 seconds.
- Does this relay require a separate control power source? No, the 3RB3016-2PB0 features an internal power supply that draws operating energy directly from the main circuit current.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
When you are hardening a motor control circuit for a heavy-starting application, the Siemens SIRIUS 3RB3016-2PB0 is the go-to technical solution. This solid-state overload relay provides an adjustable current range of 1-4amp overload protection, ensuring precision sensing that thermal bi-metal alternatives simply cannot match. Built for Size S00 contactors, it integrates seamlessly via direct mounting to 3RT2015 through 3RT2018 units. The Class 20 tripping characteristic is specifically designed for loads with longer acceleration times, offering robust phase failure protection and internal power supply stability. This Siemens motor protection device minimizes heat loss within the control cabinet, utilizing integrated current transformers to monitor line conditions. With both manual and automatic reset options and secondary 1NO + 1NC auxiliary contacts for fault signaling, this electronic overload relay ensures high system availability. It is a drop-in SIRIUS 3RB3 series component that delivers high-performance motor circuit protection for critical HVACR and industrial pump assemblies.
Key Benefits:- Electronic Precision: Provides a wide 4:1 adjustment range (1A to 4A), reducing the need for multiple inventory SKUs.
- Enhanced Duty Cycle: Features Class 20 protection, ideal for heavy-duty starting cycles where standard Class 10 relays might nuisance trip.
- Advanced Diagnostics: Equipped with a visible trip indicator, test function button, and phase unbalance detection for rapid troubleshooting.
- Space-Efficient Design: Direct-mount architecture for SIRIUS Size S00 contactors eliminates the need for additional DIN rail space or wiring.
- Can I use the 3RB3016-2PB0 for single-phase motors? Although designed primarily for three-phase systems, this relay can be used for single-phase loads if the cables are looped through all three poles in series to ensure proper current sensing and avoid phase failure tripping.
- What is the difference between Class 10 and Class 20 in this model? The -2PB0 suffix denotes a Class 20 trip curve, allowing the motor to draw higher starting current for up to 20 seconds at 6x the set current, whereas Class 10 is limited to 10 seconds.
- Does this relay require a separate control power source? No, the 3RB3016-2PB0 features an internal power supply that draws operating energy directly from the main circuit current.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












