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We've been getting intermittent trips on the main distribution panel, and the existing units just don't have the headroom for the surge loads we're seeing now, especially with new compressor bank coming online next quarter — basically the old breakers are running hot and nuisance-tripping at 65% of their rating.
Teh SWM1 series handles this a lot better than the budget stuff we were using before, it's got a proper overload curve and short-circuit protection that actually coordinates with the downstream MCCBs, and the under-voltage release is a nice bonus for keeping the PLCs from seeing brownout conditions even if the main feed dips for a few cycles.
690V max AC at 800V insulation voltage, and we're pulling the 1250A frame size with a 100kA breaking capacity at 415V (the 3P configuration), which is tighter than the IEC60947-2 minimum but necessary for the fault current we measured at the transformer secondary, CE/CB certified and the COA will confirm compliance with GB14048.2.
One thing to note — these aren't great for high-cycling motor starts where you're hitting the mechancial limit of 8500 operations or the 2000-cycle electrcial life rating, so for the conveyor drives we'll still need dedicated motor protection relays upstream, but for feeder distribution and main incomers it's perfect.
We usually have stock on the 3P versions, about 50 units or so in the 800A-1250A range, but the 4P units typically need 20 days or so lead time form the factory, and we'll also need to confirm whether the horizontal mounting kit is included or ordered seprately (check the TDS for the specific model).
We typically require a MOQ of 10 units for standard models, but we can negotiate lower quantities for first-time orders or sample testing.
Lead time for that specific configuration is around 15-20 working days, depending on current production load. We can expedite if you have a tight deadline.
Yes, we include compliance certificates for IEC60947-2 and GB14048.2 with every order. Third-party test reports are available upon request at no extra cost.
Absolutely. The ship-grade variant with extended temperature range is standard for 4P models. Just specify 'ship' in your order, and we'll adjust the thermal calibration accordingly.
Store it between -40°C and +70°C in a dry place. Avoid direct sunlight and high humidity to keep the arc chamber and contacts in top condition.
