3RU1126-1CB0 - Siemens S0 Frame 1.8-2.5A Thermal Overload Relay with Class 10 Trip and Manual/Automatic Reset

3RU1126-1CB0

3RU1126-1CB0 is a Siemens S0 frame thermal overload relay designed for motor protection with an adjustable current range of 1.8 to 2.5 amps. This relay features Class 10 tripping characteristics and is compatible with Siemens 3RT1 size S0 contactors. The 3RU1126-1CB0 provides reliable protection for three-phase motors, offering manual and automatic reset options, phase loss sensitivity, and a test function. It mounts directly to the contactor and includes a STOP button for emergency shutdown. The relay is suitable for both AC and DC applications and features screw terminals for main and auxiliary circuits.

• Adjustable current range: 1.8 - 2.5 A
• Rated operational voltage: 690 V AC
• Mounting type: Contactor mounting (S0 frame)
• Phase failure sensitive
• Manual and automatic reset
• Class 10 tripping characteristic
• 1 NO + 1 NC auxiliary contacts
• IP20 protection class
• Surge voltage resistance: 6 kV
• Shock resistance: 8g / 10 ms
• Test and STOP functions included
• Screw terminal connections

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Specifications

• Part Number: 3RU1126-1CB0
• Manufacturer : Siemens
• Brand : Siemens
• Category : Motor Control
• Item Subcategory : Overload Relay
• Family : Sirius
• Type : 3RU11
• Relay Style : Thermal
• Amperage Maximum : 2.5
• Amperage Minimum : 1.8

Product Data

• GTIN : 04011209299511
• Weight : 10