What this breaker is and what the ratings mean
The Siemens 3VA1080-2ED42-0AA0-ZD00 is a 4-pole IEC frame 100 circuit breaker with a fixed 80 A thermal-magnetic overload (Ir=80 A) and a fixed short-circuit pickup of 10 x In (Ii=10 x In). Its breaking capacity class B Icu=16 kA at 415 V means it can safely interrupt fault currents up to that level without damage to itself or upstream gear — that's the rating that governs selectivity coordination in a distribution board. The TM210 trip unit provides line protection; FTFM (Fixed Thermal Fixed Magnetic) means both overload and short-circuit settings are factory-set and non-adjustable — no dials to mis-set on site.
Deployment context and panel integration
This breaker mounts on a DIN rail inside a standard distribution or motor control centre panel. The 4-pole configuration (3 phases + N) suits three-phase line protection where the neutral is switched but not protected — the N conductor is listed as unprotected. The nut keeper kit is included for DC Power OEM applications in China, per the order-code suffix — a detail that tells you the breaker ships ready for that specific mounting arrangement.
Lifecycle and sourcing reality
For a BOM line that calls out this exact order code, the fixed Ir and Ii settings eliminate field-configuration risk: what you order is what you install. Sourced and quoted to order against an RFQ; availability and current pricing confirmed at quote time.