3RU1146-4JB0 - Siemens 45-63A Thermal Magnetic Overload Relay for Motor Protection Size S3 Class 10

3RU1146-4JB0

3RU1146-4JB0 is a Siemens thermal magnetic overload relay designed for motor protection in three-phase applications. This relay provides reliable overload and phase failure protection for motors, featuring adjustable current settings and Class 10 tripping characteristics. The 3RU1146-4JB0 is compatible with Siemens 3RT1044, 3RT1045, and 3RT1046 contactors and mounts directly to these devices. It offers both manual and automatic reset options, a test function for verifying operation, and a stop button for emergency shutdown. The relay includes a sealable cover and provides switching position indication for easy monitoring. The main and auxiliary circuits use screw terminals for secure connections.

• Adjustable current range: 45-63 A
• Class 10 tripping characteristic
• Manual and automatic reset
• Test and stop functions
• Mounts to 3RT1044, 3RT1045, 3RT1046 contactors
• Phase failure sensitivity
• Switching position indication
• Sealable cover
• 1 NO + 1 NC auxiliary contacts
• Screw terminal connections
• Motor protection for three-phase loads
• Size S3 frame

At Essential Parts, we offer fast shipping, lowest price, and expert support to help you get the right product every time.

Specifications

• Part Number: 3RU1146-4JB0
• Manufacturer : Siemens
• Brand : Siemens
• Category : Motor Control
• Item Subcategory : Overload Relay
• Relay Style : Thermal
• Amperage Maximum : 63
• Amperage Minimum : 45

Product Data

• UPC : 075455441257
• GTIN : 00754554412573
• Weight : 1.232