What this breaker is and what it does
The Siemens 3VA1196-5ED32-0AA0-ZD00 is a 3-pole IEC frame 160 molded case circuit breaker (MCCB) with breaking capacity class M, meaning it can interrupt a fault current of 55 kA at 415 V without external fuses upstream — that's your SCCR headroom for high-fault panel distribution or motor branch circuits where the available fault current sits in that range. The TM210 thermal-magnetic trip unit is fixed at 16 A overload (Ir = 16 A, fixed) with a short-circuit pickup set to 20 x In (320 A instantaneous). This is a line-protection curve, not a motor-protection curve — the magnetic pickup is high enough to ride through motor inrush on smaller loads, but the thermal element matches the cable, not the motor full-load amps. Use it for feeder or distribution protection where the load is resistive or the motor starter provides its own overload relay. The 'FTFM' suffix indicates a fixed thermal, fixed magnetic trip — no field-adjustable dials for Ir or Ii. What you order is what you get: 16 A overload, 320 A instantaneous. That simplifies BOM control but locks the breaker to that exact load current; if the load changes, the breaker changes.
Sourcing and lifecycle
The 'ZD00' suffix is a customer-specific marking tied to a DC Power OEM in China and includes a nut keeper kit for panel mounting. That OEM-tailored variant means the standard 3VA1 catalog number without the ZD00 suffix is the generic equivalent if the nut keeper kit and OEM marking aren't required for your application — but verify the exact nameplate marking your BOM calls for.
Integration notes
Mounts in a standard 3VA1 panel cutout on a DIN rail or screw-fixed backplate. The nut keeper kit (included per the ZD00 suffix) retains the mounting nuts during assembly — saves time on a populated panel where dropped hardware is a nuisance. The 3-pole form factor occupies the same footprint as any IEC frame 160 MCCB. Verify the busbar or cable lug kit is ordered separately — this order code covers the breaker and the nut keeper kit only. Siemens catalog offers a range of lug kits and busbar adapters for the 3VA1 frame.