The Siemens 3RU2116-0EB00-8K is a compact and highly reliable thermal overload relay from the industry-proven SIRIUS 3RU2 Series, designed to provide effective protection for three-phase motors against overload conditions, phase failure, and overheating. Featuring an adjustable current setting range of 0.28–0.40 A, Class 10 tripping characteristics, and compatibility with Size S00 Siemens contactors, this relay is ideally suited for protecting low-current motors used in industrial automation, OEM machinery, control panels, pumps, fans, and process equipment.
Built on Siemens' proven inverse-time thermal protection technology, the relay continuously monitors motor current and disconnects the motor when overload conditions exceed safe operating limits. This helps prevent motor winding damage, insulation deterioration, and costly downtime while allowing normal motor starting currents to pass without nuisance tripping. Integrated phase-failure sensitivity provides additional protection against motor damage caused by phase imbalance or phase loss.
The Variant EB008K offers an adjustable overload release setting of 0.28–0.40 A, making it suitable for fractional horsepower motors, compact pumps, dosing systems, ventilation units, conveyors, packaging machinery, and industrial process automation equipment. Its compact S00 frame size enables efficient installation in motor control centers (MCCs), switchboards, and industrial control cabinets.
Designed for direct mounting on compatible Siemens contactors, the relay includes 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contact for signaling, monitoring, and control circuit integration. It supports both manual and automatic reset modes and utilizes screw-type terminals for secure wiring and simplified installation. The relay is rated for operation up to 690 V AC and features a surge voltage resistance of 6 kV.
Manufactured according to Siemens' stringent quality standards, the 3RU2116-0EB00-8K delivers dependable long-term performance and precise motor protection for critical low-current motor applications.
| Specification | Details |
|---|---|
| Product Name | Thermal Overload Relay |
| Part Number | 3RU2116-0EB00-8K |
| SKU | 3RU2116-0EB00-8K |
| Brand | Siemens |
| Product Family | SIRIUS 3RU2 |
| Product Type | Motor Protection Relay |
| Variant | EB008K |
| Current Setting Range | 0.28–0.40 A |
| Relay Size | S00 |
| Trip Class | Class 10 |
| Operating Principle | Thermal |
| Mounting Type | Contactor Mounting |
| Main Circuit Connection | Screw Terminal |
| Auxiliary Circuit Connection | Screw Terminal |
| Auxiliary Contacts | 1 NO + 1 NC |
| Reset Type | Manual / Automatic |
| Rated Insulation Voltage | 690 V AC |
| Surge Voltage Resistance | 6 kV |
| Number of Main Poles | 3 |
| Frequency | 50/60 Hz |
| Protection Features | Overload & Phase Failure Protection |
| Operating Temperature | -40°C to +70°C |
| Manufacturer | Siemens |
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