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20 pcs
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20 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The Mean Well USA KNX-20E-640 is a 640mA DIN Rail power supply designed for KNX bus systems. It provides a 30V bus output with an integrated choke and an additional 30V auxiliary output for ancillary power. Rated power is 19.2W with a typical efficiency of 86%.
The power supply accepts a wide input range of 180-264VAC or 230-370VDC at 47-63Hz. It includes comprehensive protections: overload protection at 205-235% rated power with constant current limiting and auto recovery, overvoltage protection at 33-35V (shutdown, re-power to recover), and short circuit protection with a maximum current of 1.4A. Output ripple and noise is 100mVp-p maximum.
Designed for industrial and commercial applications, the KNX-20E-640 operates over a -30°C to 70°C temperature range with derating. It mounts on DIN rail TS-35/7.5 or 15 and has a compact size of 58.5mm x 52.5mm x 90.0mm. Termination is via screw terminal blocks. The unit is rated IP20 and carries CE, EAC, and TUV approvals.
| Qty | Low | High |
|---|---|---|
| 1+ | $76.00 | $76.00 |
| 5+ | $72.40 | $72.40 |
| 10+ | $69.20 | $69.20 |
| 25+ | $67.20 | $67.20 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The bus output voltage is 30V with integrated choke, and an auxiliary output also provides 30V without choke.
It mounts on DIN rail TS-35/7.5 or 15. Dimensions: 58.5mm x 52.5mm x 90.0mm.
-30°C to 70°C with derating.
It is listed as RoHS3 compliant, but this is unverified.
AC input 180-264VAC or DC input 230-370VDC.
86% typical.
Overload protection at 205-235% rated power with constant current limiting and auto recovery; overvoltage protection at 33-35V shutdown; short circuit protection at 1.4A max.