It's a miniature residual current circuit breaker with flame retardant ABS case, which can be used for electric leakage protection of household appliances. It's of high sensitivity, stable performance and good quality, durable to use. DIN rail installation allows convenient assemble and disassemble. Note: Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding. Specifications: Rated Current: 6A/ 10A/ 16A/ 20A/ 25A/ 32A/ 40A/ 50A/ 63A (Optional) Frame Size Current: 63A Material: ABS Pole Number: 1P Breaking Capacity: 4500A Release Attachment: Undervoltage Release Release Style: C Release Method: Over-current Release Wiring Method: up, in/ down, out Rated Voltage: 400V Protection Grade: III Installation Method: DIN Rail 3C Rated Voltage Range: 50V #xff1c;Voltage #xff1c;440V Package Size: 5 * 8 * 9.5cm / 1.97 * 3.15 * 3.74in Package Weight: 220g / 7.76oz Package List: 1 * Circuit Breaker