Siemens SIRIUS 3RV1321-4BC10 Motor Protection Circuit Breaker, 20A, 3-Pole, Used

Siemens SIRIUS 3RV1321-4BC10 Motor Protection Circuit Breaker, 20A, 3-Pole, Used Tested

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All the best /Klaus KLJ Trading

Brand: Siemens
Model: SIRIUS 3RV1321-4BC10
Condition: Used, tested working. Shows signs of prior use. Fully functional, supplied as shown.

Technical Specifications:

• Series: SIRIUS 3RV1

• Type: Motor Protection Circuit Breaker (MPCB)

• Rated current: 20A

• Number of poles: 3

• Release type: Short-circuit release, 260A

• Rated voltage: up to 690V AC/DC

• Breaking capacity: up to 50kA

• Tripping class: Standard switching capacity

• Mounting: Screw terminals, DIN rail compatible, Size S0

• Dimensions: approx. 97 × 45 × 96 mm

• Certifications: CE, UL, CSA, IEC 60947-2 compliantwiautomation+2​

Main Features:

• Genuine Siemens motor protection for overload and short-circuit protection

• Manual ON/OFF switching and TRIPPED indicator for diagnostic feedback

• Ideal for direct starter combinations, industrial machinery, automation panels

Background/Collector Info:
The 3RV1321-4BC10 from Siemens’ SIRIUS Control series is valued in industrial and OEM sectors for safe shutdown and robust load protection. Its compact S0 frame is a universal fit for modern and legacy control panels, and popular among electrical professionals and automation collectors.