At 16 A, this breaker protects circuits up to that continuous load. The 10 kA rating under EN 60898 is the standard for domestic/commercial installations; the 20 kA rating under IEC 60947-2 is the industrial rating, giving you headroom for higher fault-current panels. That dual rating is the key spec: if your panel is rated for 18 kA SCCR, the 20 kA IEC figure covers it; if you're specifying to EN 60898, the 10 kA limit applies.
It occupies 4 modular width units — that's 72 mm of rail space. Combined terminals top and bottom simplify daisy-chaining. It's halogen-free and silicon-free, which matters in clean-room or rail environments where outgassing is a concern.
The product is sealable for tamper-proof applications.