3RU1126-4CB0
The Siemens SIRIUS 3RU1126-4CB0 thermal overload relay features an S0 frame, Class 10 operating class, a current setting range of 17~22 amps, and 1 NO + 1 NC auxiliary contact. It can be directly installed on 3RT1023~1026 series contactors.
Product Positioning
The 3RU1126-4CB0 is a Siemens SIRIUS 3RU11 series S0 type frame thermal overload relay with a current setting range of 17~22 amps. It is suitable for use with 3RT1023~1026 contactors to protect small three-phase motors.
Core Product Advantages and Features
S0 frame small design
Compact size, suitable for control boxes with limited space to configure 3RT1023~1026 contactors
1NO+1NC auxiliary contact
It facilitates integration with control circuits and provides immediate overload tripping status reports.
Class 10 protection level
Provides standard 10-level disconnection characteristics under normal startup conditions.
Overload phase loss protection
Detects current imbalance and phase loss to protect the motor from burnout.
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3RU1136-4DB0
The Siemens SIRIUS 3RU1136-4DB0 thermal overload relay features an S2 frame, Class 10 operating class, a current setting range of 18~25 amps, and 1 NO + 1 NC auxiliary contact. It can be directly installed on 3RT1033~1036 series contactors.
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3RU1126-4BB0
The Siemens SIRIUS 3RU1126-4BB0 thermal overload relay features an S0 frame, Class 10 operating rating, and a current setting range of 14~20 amps. It can be directly mounted on 3RT1023~1026 series contactors and supports manual and automatic reset.
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3RU1126-4AB0
The Siemens SIRIUS 3RU1126-4AB0 thermal overload relay features an S0 frame, Class 10 operating rating, and a current setting range of 11~16 amps. It can be directly mounted on 3RT1023~1026 series contactors and supports manual and automatic reset.