Product Description
The Siemens 3RN1012-1CK00 is a standard thermistor motor protection evaluation unit from the SIRIUS product line. It monitors motor winding temperatures to protect against overheating and insulation damage.
This compact unit features dual-rated control voltages, clear LED status indicators, flexible reset options, and reliable auxiliary contacts, making it ideal for industrial automation, motor control panels, and OEM applications.
Key Features
• Thermistor motor protection evaluation unit (standard type)
• Dual-rated control supply: 110V AC or 230V AC (50/60 Hz)
• Monitors motor winding temperature via PTC thermistors
• Manual, automatic, or remote reset capability
• Compact DIN rail or screw mounting design
• LED indicators for READY and TRIPPED status
Technical Specifications
• Brand: Siemens
• Part Number: 3RN1012-1CK00
• Product Type: Thermistor Motor Protection Relay
• Control Voltage: 110 / 230V AC, 50/60 Hz
• Auxiliary Contacts:
• 1 Normally Open (NO)
• 1 Normally Closed (NC)
• Mounting Type: DIN rail snap-on or screw mount
• Terminal Type: Screw terminals
• Degree of Protection: IP20
• Dimensions (W x H x D): 22.5 mm x 102 mm x 91 mm
Applications
• Industrial motor protection systems
• Motor starters and control panels
• Pumps, fans, compressors, and conveyors
• OEM machinery and automation equipment
