
Siemens Industrial Controls 3RV2021-1KA10 Breaker
The Siemens 3RV2021-1KA10 is a high-performance motor starter protector (MSP) from the SIRIUS Innovations line, specifically designed for robust motor protection in industrial HVACR and control systems. Built in an S0 frame size, this 3-pole circuit breaker features an adjustable 9 to 12.5A thermal overload release and a high-speed 163A instantaneous magnetic trip for short-circuit mitigation. As a Type E self-protected combination motor controller, it consolidates switching, short-circuit, and overload protection into a single DIN rail-mounted unit, significantly reducing cabinet space requirements and installation time. The integrated screw terminal connections ensure secure, vibration-resistant wiring, while the rotary handle provides clear ON/OFF status and trip indication. Engineered for high-demand load feeders, it supports power ratings up to 7.5 kW at 400V and is fully compatible with 3RT2 contactors, enabling seamless integration into complex motor control circuits.
Key Benefits- Total Protection: Combines overload, short-circuit, and disconnect functions in one S0 frame size unit.
- Precise Dialing: Features an adjustable dial for fine-tuning the 9-12.5A range to match specific motor nameplate data.
- Enhanced Safety: Class 10 trip characteristics ensure rapid disconnect under fault conditions to prevent motor winding damage.
- Versatile Mounting: Standard 35mm DIN rail and snap-on mounting capability for rapid field replacement or new builds.
- Climate Resistant: Temperature-compensated operation designed for reliable performance in demanding mechanical rooms.
Is this breaker compatible with 3-phase motors?
Yes, the Siemens 3RV2021-1KA10 is a 3-pole device specifically rated for 3-phase motor protection up to 690V.
Can I add auxiliary contacts to this unit?
Yes, this SIRIUS MSP is compatible with Siemens 3RV29 transverse or lateral auxiliary switches for remote status signaling.
Does this unit support Type E protection?
Yes, it is UL-approved as a self-protected combination motor controller, provided the appropriate line-side terminal accessories are used where required.
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 3RV2021-1KA10 Breaker
The Siemens 3RV2021-1KA10 is a high-performance motor starter protector (MSP) from the SIRIUS Innovations line, specifically designed for robust motor protection in industrial HVACR and control systems. Built in an S0 frame size, this 3-pole circuit breaker features an adjustable 9 to 12.5A thermal overload release and a high-speed 163A instantaneous magnetic trip for short-circuit mitigation. As a Type E self-protected combination motor controller, it consolidates switching, short-circuit, and overload protection into a single DIN rail-mounted unit, significantly reducing cabinet space requirements and installation time. The integrated screw terminal connections ensure secure, vibration-resistant wiring, while the rotary handle provides clear ON/OFF status and trip indication. Engineered for high-demand load feeders, it supports power ratings up to 7.5 kW at 400V and is fully compatible with 3RT2 contactors, enabling seamless integration into complex motor control circuits.
Key Benefits- Total Protection: Combines overload, short-circuit, and disconnect functions in one S0 frame size unit.
- Precise Dialing: Features an adjustable dial for fine-tuning the 9-12.5A range to match specific motor nameplate data.
- Enhanced Safety: Class 10 trip characteristics ensure rapid disconnect under fault conditions to prevent motor winding damage.
- Versatile Mounting: Standard 35mm DIN rail and snap-on mounting capability for rapid field replacement or new builds.
- Climate Resistant: Temperature-compensated operation designed for reliable performance in demanding mechanical rooms.
Is this breaker compatible with 3-phase motors?
Yes, the Siemens 3RV2021-1KA10 is a 3-pole device specifically rated for 3-phase motor protection up to 690V.
Can I add auxiliary contacts to this unit?
Yes, this SIRIUS MSP is compatible with Siemens 3RV29 transverse or lateral auxiliary switches for remote status signaling.
Does this unit support Type E protection?
Yes, it is UL-approved as a self-protected combination motor controller, provided the appropriate line-side terminal accessories are used where required.
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.
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Description
The Siemens 3RV2021-1KA10 is a high-performance motor starter protector (MSP) from the SIRIUS Innovations line, specifically designed for robust motor protection in industrial HVACR and control systems. Built in an S0 frame size, this 3-pole circuit breaker features an adjustable 9 to 12.5A thermal overload release and a high-speed 163A instantaneous magnetic trip for short-circuit mitigation. As a Type E self-protected combination motor controller, it consolidates switching, short-circuit, and overload protection into a single DIN rail-mounted unit, significantly reducing cabinet space requirements and installation time. The integrated screw terminal connections ensure secure, vibration-resistant wiring, while the rotary handle provides clear ON/OFF status and trip indication. Engineered for high-demand load feeders, it supports power ratings up to 7.5 kW at 400V and is fully compatible with 3RT2 contactors, enabling seamless integration into complex motor control circuits.
Key Benefits- Total Protection: Combines overload, short-circuit, and disconnect functions in one S0 frame size unit.
- Precise Dialing: Features an adjustable dial for fine-tuning the 9-12.5A range to match specific motor nameplate data.
- Enhanced Safety: Class 10 trip characteristics ensure rapid disconnect under fault conditions to prevent motor winding damage.
- Versatile Mounting: Standard 35mm DIN rail and snap-on mounting capability for rapid field replacement or new builds.
- Climate Resistant: Temperature-compensated operation designed for reliable performance in demanding mechanical rooms.
Is this breaker compatible with 3-phase motors?
Yes, the Siemens 3RV2021-1KA10 is a 3-pole device specifically rated for 3-phase motor protection up to 690V.
Can I add auxiliary contacts to this unit?
Yes, this SIRIUS MSP is compatible with Siemens 3RV29 transverse or lateral auxiliary switches for remote status signaling.
Does this unit support Type E protection?
Yes, it is UL-approved as a self-protected combination motor controller, provided the appropriate line-side terminal accessories are used where required.
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.












