Siemens 3RU1126-1CB0 Overload Relay
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Overload Relay
Siemens SIRIUS thermal overload relay with adjustable current range 1.8“2.5 A, S0 size design, and integrated auxiliary contacts for reliable motor protection in industrial control systems.
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Siemens 3RU1126-1CB0 Thermal Overload Relay
The Siemens 3RU1126-1CB0 is a SIRIUS series thermal overload relay designed to provide reliable motor protection against overload conditions. It is engineered for contactor mounting and ensures accurate thermal protection in industrial motor control systems.
Manufacturer: Siemens
Type: Overload Relay
MRN: 3RU1126-1CB0
INST ORD NO: 3ZX1012-0RU11-1AA1
Code: 01903477
| Product Brand Name | SIRIUS |
| Product Designation | Thermal Overload Relay |
| Size of Overload Relay | S0 |
| Size of Contactor Compatibility | S0 |
| Range Current | 1.8 / 2.5 A |
| Adjustable Overload Release | 1.8 / 2.5 A |
| Number of Poles (Main Circuit) | 3 |
| Auxiliary NC Contacts | 1 |
| Auxiliary NO Contacts | 1 |
| Max Operating Voltage (AC-3) | 690 V |
| Insulation Voltage (Pollution Degree 3) | 690 V |
| Surge Voltage Resistance | 6 kV |
| Power Loss (Hot State at AC) | 5.7 W |
| Power Loss Per Pole | 1.9 W |
| Protection Class (Front) | IP20 |
| Shock Resistance | 8g / 10 ms |
| Ambient Temperature During Operation | -20 / +70 °C |
| Mounting Type | Contactor Mounting |
| Height | 97 mm |
| Width | 45 mm |
| Depth | 96 mm |
| Fuse Link for Auxiliary Switch | gL/gG 6 A, Quick 10 A |


























