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Mean Well KNX-20U-640 KNX Power Supply 640mA, 115VAC Input (Special Order Model)
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Mean Well KNX-20U-640 KNX Power Supply 640mA, 115VAC Input (Special...
Overview
KNX-20U-640 is the model of this series: rated current 640mA, rated power 19.2W, typical efficiency 86%.
The KNX Power Supply KNX-20E-640 is a 640mA power supply with high efficiency and a small footprint of only 3SU (52.5 mm).The device has a KNX bus choke output and an additional output for ancillary power.The -30~+70℃ wide temperature operating range can meet all kinds of applications. LED indicators are used in case of normal operation,overload conditions and RESET operation. It is perfectly suitable to power up any products labeled with the KNX trademark. With over 30 years of industrial power supply experience, KNX-20E-640 is engineered to be a reliable and safe solution for KNX bus environment.
Features
- EIB / KNX power supply with integrated choke
- Compact size with 3SU(52.5mm) width
- Safety extra low voltage(SELV)
- 180~264VAC input
- No load power consumption <0.5W
- Protections: Short circuit / Overload(short-circuit-proof) / Over voltage
- Cooling by free air convection
- Isolation classⅠ
- LED indicator for normal operation, bus reset and bus overload
- Installed on DIN rail TS-35/7.5 or 15
- Over voltage category Ⅲ
- 100% full load burn-in test
- 3 years warranty
Specifications
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
- 640mA
- RATED POWER
- 19.2W
- RIPPLE & NOISE (max.)Note.2
- 100mVp-p
- SHORT CIRCUIT CURRENT
- 1.4A
- SETUP, RISE TIME
- 1000ms, 50ms/230VAC at full load
- AC MAINS FAILURE BACK-UP TIME(Typ.)
- 200ms/230VAC at full load
INPUT
- VOLTAGE RANGE
- 115VAC (special order model)
- FREQUENCY RANGE
- 47 ~ 63Hz
- EFFICIENCY (Typ.)Note.3
- 86%
PROTECTION
- OVERLOAD
- 205 ~ 235% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
- OVER VOLTAGE
- 33 ~ 35V Protection type : Shut down o/p voltage, re-power on to recover
FUNCTION
- RESET
- Physical button for reset the bus (Press the RESET button for at least 20 seconds to reset the KNX Bus)
- LED DISPLAY
- Green LED (ON) :Normal operation Red LED1 (Reset):Reset the bus; Red LED2 ( I >Imax ):Overload/Short
- 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
- 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes
- TYPE OF PROTECTION
- IP20 design
SAFETY & EMC (Note 4)
- OVER VOLTAGE CATEGORY
- Ⅲ;According to BS EN/EN61558, BS EN/EN50178,BS EN/EN60664-1, BS EN/EN62477-1; altitude up to 2000 meters
- SAFETY STANDARDS
- BS EN/EN61558-1,BS EN/EN61558-2-16;BS EN/EN50491-3, EAC TP TC 004 approved
- WITHSTAND VOLTAGE
- I/P-O/P:4KVAC I/P-FG:2KVAC O/P-FG:0.6KVAC
- ISOLATION RESISTANCE
- I/P-O/P, I/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
- EMC EMISSION
- Compliance to BS EN/EN50491-5-2,-5-3; BS EN/EN61000-3-2,-3-3, EAC TP TC 020
- EMC IMMUNITY
- Compliance to BS EN/EN50491-5-2,-5-3;BS EN/EN61000-4-2,3,4,5,6,8,11,BS EN/EN55035; heavy industry level,EAC TP TC 020
OTHERS
- MTBF
- 1899.9K hrs min. Telcordia SR-332 (Bellcore) ; 416.5K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 52.5*90*54.5mm (W*H*D)
- MOUNTING
- 35mm mounting rail according to DIN BS EN/EN60715
- PACKING
- 0.215Kg ; 60pcs/13.9Kg/0.97CUFT
Test conditions and notes5
- 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
- 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor. Measure before Choke.
- 3. Efficiency before choke.
- 4. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
- 5. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).
Technical drawings
Typical applications
- Intelligent home control
- Modern building automation
- Lighting control
- HVAC system
- Security system
- Blinds and shutters
- Monitoring systems
- Energy management
- Alarm monitoring
Downloads
Certificates6
Test reports1
Payment & Security
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