Siemens SENTRON order code 3VA1163-1AA36-0HH0 is a 3-pole switch disconnector in the 3VA1 IEC frame 160 series, rated for 63 A continuous current (Iu) without overload or short-circuit protection. It carries a shunt trip release (STL) for 12–30 V DC or 24 V AC 50/60 Hz, plus 2 auxiliary switches HQ and 1 trip alarm switch HQ — a fully kitted control interface for remote trip and status feedback.
Ratings and fit
The 63 A rating is the thermal continuous current (Iu) for unbroken conductor duty — this part is a disconnect switch, not a breaker, so it does not provide overload or short-circuit protection. The 690 V AC maximum operational voltage (Ue) covers 480 V and 600 V class systems; the DC rating goes to 500 V. Short-time withstand is 2 kA for 0.5 s or 1 s, which defines the fault-clearing capability of the switch itself when coordinated with upstream protection. Front terminal connection with clamp terminals for the main circuit. The auxiliary contact block provides 2 CO (changeover) auxiliary switches plus a separate trip alarm contact — three total CO contacts. The shunt trip release is built in, not field-added; no undervoltage release is present. A motor drive can be added as an optional extension. Dimensions are 130 mm height, 76.2 mm width, 70 mm depth. The front face carries IP40 protection; the operating temperature range is -25 °C to +70 °C, with storage from -40 °C to +80 °C. Maximum power loss at rated current is 38 W.