Size S00 contactor with extended operating range
The 3RT2017-4KB42-0LA0: The 'extended operating range' design means the coil holds in reliably even when the control voltage dips well below nominal — a practical advantage on long cable runs or shared DC supplies where voltage drop is a concern. It's fitted with a 24 VDC coil terminated via a ring cable lug connection — not a screw terminal on the coil, so factor in the lug type when wiring the control circuit.
Panel fit and mounting clearances
The 45 mm width, 61 mm height, and 117 mm depth define the panel footprint. This covers most panel layouts without derating.
DC switching capability across voltages
DC switching ratings are given per voltage level — a key detail for DC load circuits where arc extinction is harder than AC. For AC-4 duty (frequent reversing or inching), the maximum switching rate is 250 operations per hour — above that the contactor's thermal capacity limits the duty cycle.
Temperature range and mechanical endurance
Typical mechanical life is 30,000,000 cycles — this is the mechanical endurance before wear, not the electrical endurance under load. Electrical life will be lower and depends on the switching current and voltage.
Sourced through independent distribution channels — quoted to order against the BOM quantity. No stock-holding claim; each order is fulfilled from verified supply.