The Siemens 5SY4602-7CC11 is a miniature circuit breaker rated 400 V with a 10 kA breaking capacity, configured 3+N-pole, C-curve trip characteristic, 2 A, and specified for railway applications.
The 3+N-pole configuration is a four-module unit switching three phases and switching the neutral (not just a solid link), which is standard for TN-S or TN-C-S rail auxiliary supplies where the neutral must be protected against overcurrent. The 2 A rating is low — sized for a control transformer, a battery charger, or a lighting circuit, not a motor or heater load. The railway designation typically implies the breaker meets EN 50155 or EN 61373 for vibration, shock, and temperature range inside a rail vehicle or trackside cabinet; the evidence does not list those standards explicitly, but the order-code suffix -7CC11 is Siemens' railway-series identifier within the 5SY4 range.