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Meanwell KNX-40E-1280 is a 1280mA power supply with high efficiency and a small footprint of only 4SU (72mm). The device has a KNX bus choke output and additional output for auxiliary power. At the same time, the -30~+70℃ wide temperature operating range can meet all kinds of applications. For troubleshooting, monitoring purpose, output voltage, output current, bus traffic, device temperature and other actual measurement values can be sent via KNX. LED indicators are used in case of normal operation, overload conditions and RESET operation. lt is perfectly suitable to powerup any products labeled with the KNX trademark. Meanwell KNX-40E-1280 is engineered to be a reliable and safe solution for KNX bus environment.
KNX | Series Name |
40E | Output wattage |
1280 | Output Current |
□ | Blank: Basic function, D: with diagnostic funtion |
Blank | 1280mA KNX Power Supply |
D | 1280mA KNX Power Supply with Diagnostic Function |
MODEL | KNX-40E-1280□ | |
OUTPUT | BUS OUTPUT VOLTAGE WITH CHOKE | Bus,30V (KNX black/red terminal block) |
DC OUTPUT VOLTAGE WITHOUT CHOKE | 30V (Additional output for ancillary power) | |
RATED CURRENT | 1280mA | |
RATED POWER | 38.4W | |
RIPPLE & NOISE (max.) | 100mVp-p | |
SHORT CIRCUIT CURRENT | 2.8A | |
SETUP, RISE TIME | 1000ms, 50ms/230VAC at full load | |
AC MAINS FAILURE BACK-UP TIME (Typ.) | 200ms/230VAC at full load | |
INPUT | VOLTAGE RANGE | 180 ~ 264VAC 176 ~ 280VDC |
FREQUENCY RANGE | 47 ~ 63Hz | |
EFFICIENCY (Typ.) | 86% | |
AC CURRENT (Typ.) | 0.5A/230VAC | |
INRUSH CURRENT (Typ.) | COLD START 60A(twidth=1200μs measured at 50% Ipeak)/230VAC | |
LEAKAGE CURRENT | <1mA / 240VAC | |
PROTECTION | OVERLOAD | 205 ~ 235% rated output power |
Protection type : Constant current limiting, recovers automatically after fault condition is removed | ||
OVER VOLTAGE | Physical button for the bus reset: Blank type:Press the RESET button for at least 20 seconds to reset the KNX Bus D type:Press the RESET button once,it will reset the KNX Bus last for 20 seconds automatically |
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Protection type : Hiccup mode, recovers automatically after fault condition is removed | ||
FUNCTION | RESET | Physical button for reset the bus (Press the RESET button for at least 20 seconds to reset the KNX Bus) |
LED INDICATORS | Please refer to the Explanation of LED Status | |
CHOKE | One integrated choke | |
ENVIRONMENT | WORKING TEMP. | -30 ~ +70℃ (Refer to "Derating Curve") |
WORKING HUMIDITY | 20 ~ 95% RH non-condensing | |
STORAGE TEMP., HUMIDITY | -40 ~ +85℃, 10 ~ 95% RH non-condensing | |
VIBRATION TYPE OF PROTECTION | 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes | |
TYPE OF PROTECTION | IP20 design | |
OVER VOLTAGE CATEGORY | Ⅲ ,According to BS EN/EN61558, BS EN/EN50178,altitude up to 2000 meters | |
SAFETY & EMC | SAFETY STANDARDS | BS EN/EN61558-1,BS EN/EN61558-2-16;BS EN/EN50491-3 approved |
WITHSTAND VOLTAGE | I/P-O/P:4.2KVAC I/P-FG:2KVAC | |
ISOLATION RESISTANCE | I/P-O/P, I/P-FG:100M Ohms / 500VDC / 25°C/ 70% RH | |
EMC EMISSION | Compliance to BS EN/EN50491-5-2,-5-3;BS EN/EN61000-3-2,-3-3 | |
EMC IMMUNITY | Compliance to BS EN/EN50491-5-2,-5-3;BS EN/EN61000-4-2,3,4,5,6,8,11, heavy industry level | |
Others | MTBF | 1414.2K hrs min. Telcordia SR-332 (Bellcore) 217.1Khrs min. MIL-HDBK-217F (25°C) |
DIMENSION | 72*90*57mm (W*H*D) | |
PACKING | 35mm mounting rail according to DIN BS EN/EN60715 | |
MOUNTING | 0.328Kg ; 48pcs/16.4Kg/1.02CUFT |
l ElB/KNX power supply with integrated choke
l Compact size with 4SU width (72mm)
l Safety extra low voltage (SELV)
l Suitable for TP1-256
l 180~264VAC input
l Protections: Short circuit/Overload (short-circuit-proof)/Over voltage. Cooling by free air convection
l Isolation class I
l LED indicator for normal operation, bus reset and bus overload" Monitoring of output voltage, output current, bus traffic load and device temperature
l Provide Wide variety of diagnostic and logic function
l Over Voltage categoryⅢ
l 3 years warranty
l Intelligent home control
l Modern building automation
l Lighting control
l HV AC system
l Security system
l Blinds and shutters
l Monitoring systems
l Energy management
l Alarm monitoring
Brand | Meanwell |
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