This is a ZL62-50-30 type circuit breaker automatic shut-off device with a rated current of 50A. - Model Name: ZL62-50-30 - Rated Current: 50A 2P2E 60AF - Rated Voltage: AC 250V Thank you for viewing. I bought this used, working unit intending to use it, but I didn't. Please check the condition from the photos. Product Features and Basic Specifications Phase System: 1Φ2W Number of Poles/Elements: 2P2E Rated Current (A): 50 Rated Sensitivity Current (mA): 30 Dimensions (mm): 50 x 100 x 60 Weight (kg): 0.3 External Dimensions (mm): 50 x 100 x 60 Rated Voltage (V): AC100-200 External Dimensions (Height x Width x Depth) (mm): 50 x 100 x 60 Connection Method: Wire press terminal (M5) JIS Standards: C8201-2-2 Anne×2・C8222 Anne×2 Main Applications: Main circuit/General use/JIS compliant Connectable Wire (mm2): 22 Operating Time: Within 0.1 seconds Rated Breaking Capacity (kA): 2.5 (AC100V) / 2.5 (AC200V) Tripping Method: Fully electromagnetic Reverse Connection: Not possible Applicable Safety Standards: Electrical Appliance and Material Safety Law Frame (AF): 60 Operating Time (s): Within 0.1