MEAN WELL KNX-40E-1280 38.4W 30V 1.28A KNX
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Key specifications
Complete technical specifications| Output voltage | 30 V |
|---|---|
| Rated current | 1.28 A |
| Rated power | 38.4 W |
| AC input range | 180–264 VAC |
| IP rating | IP20 |
|---|---|
| Operating temperature | -30 to 70 °C |
| Dimensions (L × W × H) | 72 × 90 × 57 mm |
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Complete technical specifications
Rev. 2025-04-18| Output voltage | 30 V |
|---|---|
| Rated current | 1.28 A |
| Rated power | 38.4 W |
| AC input range | 180–264 VAC |
|---|---|
| DC input range | 176–280 VDC |
| Frequency range | 47–63 Hz |
| Over voltage | Protected |
|---|
| Operating temperature | -30 to 70 °C |
|---|---|
| Storage temperature | -40 to 85 °C |
| Operating humidity | 20–95 % RH |
| Vibration | 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes |
| Dimensions (L × W × H) | 72 × 90 × 57 mm |
|---|---|
| Net weight | 328.0 g |
| IP rating | IP20 |
| Safety standards | BS EN/EN61558-1,BS EN/EN61558-2-16;BS EN/EN50491-3 approved |
|---|
These approvals are recorded for the series as a whole. Where a line names particular models or ratings, it applies only to those — read it against this part number, and ask us for the certificate if your approval process needs it.
| Part number | KNX-40E-1280 |
|---|---|
| Brand | MEAN WELL |
| Category | AC/DC KNX |
| Series | KNX-40E |
Approvals and compliance
From the manufacturer's datasheet for this series| 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 |
Standards certified against
- EN50491-3
- EN61558-1
- EN61558-2-16
Read the datasheet's exact wording
BS EN/EN61558-1,BS EN/EN61558-2-16;BS EN/EN50491-3 approved
Reproduced unedited from the manufacturer's datasheet. Where an approval covers only some models, the wording says so. Ask us for the certificate itself if your approval process needs it.
Certificates
Certificate copy supplied with this model.
Enlarge
CE · Certificate number R50453592
Ordering & shipping information
| Part number | KNX-40E-1280 |
|---|---|
| Minimum order quantity | 1 |
| Country of origin | China |
| Typical packed weight | 492 g |
| Unit weight | 328 g |
KNX-40E model comparison
View all models| Model | Output voltage | Rated current | Rated power | Price | Availability |
|---|---|---|---|---|---|
| KNX-40E-1280 Currently viewing | 30 V | 1.28 A | 38.4 W | $161.70 |
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Technical data source
- Primary source
- MEAN WELL
- Datasheet revision
- 2025-04-18
- Last verified
How we source and verify product data
Specifications are transcribed from the manufacturer datasheet and are subject to change without notice. The current manufacturer datasheet governs in case of any discrepancy.