Skip to content
HTD Electronics Warehouse Open
Order in --Order now ships Today
+1 305-432-1030 sales@htdelectronics.com
KNX-20E-640 MEAN WELL Power Supply | HTD Electronics

KNX-20E-640

Availability: Out of stock
19.2 W30 V0.64 A180V–264V in

Request a Backorder

Submit your request and we will confirm lead time.

KNX-20E-640
Quantity Prices (USD)
Quantity
Unit Price (USD)
1+
$74.63 USD
10+
$70.90 USD
20+
$69.41 USD
50+
$67.91 USD
100+
$66.42 USD
200+
$64.93 USD
All prices are displayed in USD. *Import tariff is included in the listed price. You pay exactly what you see—no surprise fees at checkout. Discounts are applied automatically based on the total quantity added to your cart.
Quick Specs
Input Voltage
180V~264V
Output Voltage
30V
Rated Current
0.64A
Power Rating
19.2W
Waterproof
Non-waterproof
Dimensions & Weight
3.54 x 2.14 x 2.06 in0.47 lbs

Datasheet (PDF)

Open PDF
If the PDF doesn’t load here, click “Open PDF”.

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 / Over voltage
Cooling by free air convection
Isolation class I
LED indicator for normal operation, bus reset, and bus overload
Installed on DIN rail TS-35/7.5 or 15
Overvoltage category III
100% full load burn-in test
3 years warranty

General Specification

AC input voltage range 180~264VAC; 230~370VDC
AC inrush current Cold start 40A at 230VAC
Rated current 640mA
Overload protection 205%~235% rated output power, constant current limiting, auto-recovery
Over-voltage protection 110%~117% rated output voltage
Setup, rise, backup time 1000ms, 50ms, 200ms
Withstand voltage I/P-O/P:4KVAC I/P-FG:2KVAC O/P-FG:0.6KVAC
Working temperature -30~+70°C 
Vibration 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, and Z axes
Safety standards BS EN/EN61558-1,BS EN/EN61558-2-16;BS EN/EN50491-3, EAC TP TC 004 approved
EMC standards EN50491-5-2,3; EN61000-3-2,3; EN61000-4-2,3,4,5,6,8,11
Connection I/P: 3 poles, O/P: 2 poles screw DIN terminal + 2 bus terminal
Dimension (LxWxH) 52.5x90x54.5
Packing 60pcs / 13.9kg

Similar Models

Same product family and output voltage, with the closest available power ratings.

Environmental Documents
📄 E6) COC-REACH (2026/01/28) 📄 E9) CMRT (2025/04/25) 📄 E14) COC-ROHS 2 (2015/863/EU) (2024/10/04) 📄 REACH Certificate (PDF) (2020/12/03) 📄 ROHS Certificate (PDF) (2020/05/29) 📄 E12) COC-ROHS 2 (2011/65/EU) (2016/10/01)
Same-Day Shipping

Order by 4:00 PM ET, Mon–Fri

Volume Discounts

Save up to 13% on 200+ units

Talk to Our Team

+1 305-432-1030 · Mon–Fri 10–5 ET

No Surprise Fees

What you see is what you pay at checkout

Shipping & delivery

Currently out of stock.Transit times count from when it ships. Request a quote for lead time.
 

    Payment & Security

    Questions about shipping or payment? +1 305-432-1030 · sales@htdelectronics.com Mon–Fri 10–5 ET