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Siemens 3RV2021-0JA10 Motor Protection Circuit Breaker - S0, 0.7-1A

Siemens 3RV2021-0JA10 Motor Protection Circuit Breaker, Size S0.

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ManufacturerSiemens

Part number3RV2021-0JA10

Manufacturer Siemens

Part Number 3RV2021-0JA10

Size S0

Type Motor Protection Circuit Breaker

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Motor protection Adjustable overload protection Fixed magnetic trip Screw terminal connections Standard switching capability S0 frame size

Product description

The Siemens 3RV2021-0JA10 is a Size S0 motor protection circuit breaker featuring a Class 10 rating. It provides an adjustable A-release range from 0.7 to 1 A and a fixed N-release of 13 A for short-circuit protection. This breaker utilizes screw terminals for secure and reliable connections and offers standard switching capacity, making it suitable for various industrial motor control applications.

This circuit breaker is crucial for protecting electric motors against overloads and short circuits in industries such as manufacturing, automation, and material handling. Its precise adjustment capabilities and reliable tripping characteristics ensure motor longevity and minimize operational interruptions.

Stanlo Automation, a veteran-owned supplier of surplus industrial parts, offers the Siemens 3RV2021-0JA10 at competitive prices. We are dedicated to providing quality components and fast service to help you reduce costs and maintain the efficiency of your automation systems.

Technical specifications

Manufacturer	Siemens
Part Number	3RV2021-0JA10
Size	S0
Type	Motor Protection Circuit Breaker
Class	10
A-Release Range	0.7-1 A
N-Release	13 A
Terminal Type	Screw Terminal
Switching Capacity	Standard

Common applications

Motor control centers

Industrial machinery

Automation systems

Conveyor systems

Pump stations

HVAC systems

Compatible systems

Suitable for direct-on-line (DOL) starters, reversed DOL starters, and combination starters when used with appropriate Siemens contactors.

Also known as

Siemens 3RV2021-0JA10 breaker Siemens S0 motor protection 3RV20 motor starter breaker Siemens 0.7-1A breaker

Replaces / compatible with

This part serves as a direct replacement for Siemens 3RV2021-0JA10 motor protection circuit breakers, ensuring compatibility and performance.

Technical note

Expert tip

Ensure the screw terminals are properly tightened during installation to maintain a reliable electrical connection and prevent overheating, especially under heavy load conditions.

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Frequently asked questions

What is the maximum short-circuit trip current for the Siemens 3RV2021-0JA10?

The Siemens 3RV2021-0JA10 circuit breaker is designed with a fixed short-circuit release (N-release) of 13 Amps. This provides fast and reliable protection against damaging short circuit events.