The Siemens 3RU2136-4AB00 is a SIRIUS 3RU2 thermal overload relay designed for reliable motor overload and phase failure protection in industrial applications. With an adjustable current setting range of 11–16A and Class 10 tripping characteristics, it provides dependable protection for three-phase motors against overheating caused by overload conditions.
This relay is intended for contactor mounting and is compatible with S2-size Siemens contactors. It features screw terminals for both the main and auxiliary circuits, ensuring secure wiring and easy installation. The relay includes 1 Normally Open (1NO) and 1 Normally Closed (1NC) auxiliary contact, along with manual and automatic reset functionality for flexible operation.
Designed to Siemens' SIRIUS quality standards, the 3RU2136-4AB00 offers excellent reliability, long service life, and consistent performance in demanding environments such as motor control centers, pump systems, conveyors, compressors, HVAC equipment, and industrial automation panels
Parameter | Specification |
|---|---|
Manufacturer | Siemens |
Part Number | 3RU2136-4AB00 |
Product Series | SIRIUS 3RU2 |
Product Type | Thermal Overload Relay |
Current Setting Range | 11–16 A |
Trip Class | Class 10 |
Mounting Type | Contactor Mounting |
Compatible Contactor Size | S2 |
Main Circuit Connection | Screw Terminals |
Auxiliary Circuit Connection | Screw Terminals |
Main Circuit Poles | 3 |
Auxiliary Contacts | 1NO + 1NC |
Rated Operational Voltage | Up to 690 V AC |
Frequency | 50/60 Hz |
Rated Operational Current | 16 A |
Motor Rating | 7.5 kW at 400 V AC |
Reset Type | Manual / Automatic |
Protection Degree | IP20 (Front) |
Mechanical Installation | Direct Mounting on S2 Contactor |
Standards | IEC 60947 |
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