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The Siemens 3VA9977-0KB00 is a position signaling switch accessory from the SENTRON product family, specifically designed for use with plug-in and draw-out units in circuit protection systems.
This accessory features a rated operational voltage of 240V AC at 50 Hz and 250V DC. It has a thermal current limit (Ith) of 6A. The operational current capabilities vary depending on the voltage and type (AC-12 or DC-12), with a maximum of 6A at AC-12 across various voltages and a maximum of 6A at DC-12 and 12V, decreasing to 0.25A at DC-12 and 250V.
Mechanically, the switch accessory has dimensions of 43 mm in height, 8.5 mm in width, and 33 mm in depth, with a net weight of 33g. It is designed to operate within an ambient temperature range of -25°C to 70°C. The tightening torque for screw-type terminals is specified between 0.4 N·m and 0.5 N·m according to IEC standards, and between 3.5 lbf·in and 4.4 lbf·in according to UL standards.
The accessory is suitable for environments with a degree of pollution of 3 and an overvoltage category of III. Connection details include a stripped length of 15 mm for IEC and 0.6 inches for UL. The connectable conductor cross-section for auxiliary contacts ranges from 20 AWG to 16 AWG.
The rated operational voltage is 240V AC at 50 Hz and 250V DC.
The thermal current limit (Ith) is 6A.
The operating temperature range is from -25°C to 70°C.
The dimensions are 43 mm in height, 8.5 mm in width, and 33 mm in depth.
The degree of pollution is 3.
The overvoltage category is III.