Safety isolating transformer
EL 28/12
Characteristics
General data
The safety transformers of the EL series provide safe galvanic isolation of the primary circuit from the secondary circuit and are manufactured according to EN (IEC) 61558-2-6. By limiting the output voltage, the transformers are suitable for the construction of SELV and PELV circuits.
Benefits
› Solder connection for free wiring
› With dual output coils for series and parallel connection
› Excellent corrosion protection and low noise emission thanks to BLOCK IMPEX vacuum impregnation
› Easy mounting with a sturdy metal base plate featuring elongated holes
| Product (Headline_Detailseite) | Safety isolating transformer |
| Order number (PF_Teilenummer) | EL 28/12 |
| Series (PF_Baureihe) | EL |
| Power (PF_Leistung_VA_W) | 28 VA |
| Input (PF_Trafo_Eingang) | 230 V |
| Output (PF_Trafo_Ausgang) | 2 x 12 V • 1.167 Aac |
| Phases (PF_Phasen) | 1 |
| Frequency range (PF_Frequenzbereich) | 50 Hz to 60 Hz |
| No-Load Losses (PF_Leerlaufverluste_W) | 3.1 W |
| EN Insulation class (PF_EN_Isolierstoffklasse) | E (120°C) |
| Duty Cycle (PF_Einschaltdauer) | 100 % |
| Wire material (PF_Leitermaterial) | Copper |
| Efficiency (PF_Wirkungsgrad) | 77 % |
General
| Short circuit proof (PF_Kurzschlussfestigkeit_KS_Festigkeit) | not short-circuit proof |
| Switching group (PF_Schaltgruppe) | Iii0 |
| Cooling type (PF_Kuehlungsart) | AN |
Environment
| Ambient temperature (PF_Umgebungstemperatur) | -20 °C to 40 °C / -4 °F to 104 °F |
| Max. installation height (PF_max_Aufstellhoehe_m) | 2,000 m / 6,562 ft |
Protection and Safety
| Protection type (PF_Schutzart) | IP00 |
| Protection class (prepared) (PF_Schutzklasse) | II |
| Overvoltage category (PF_ueberspannungskategorie) | III |
| Degree of contamination (PF_Verschmutzungsgrad) | 2 |
Electrical Connections
| Input terminal (PF_Anschluss_Eingang) | Soldering eye |
| Output terminal (PF_Anschluss_Ausgang) | Soldering eye |
Size and Weight
| Width (PF_Breite_mm) | 56 mm / 2.2 in |
| Height (PF_Hoehe_mm) | 55 mm / 2.17 in |
| Depth (PF_Tiefe_mm) | 60 mm / 2.36 in |
| Weight (PF_Gewicht_kg) | 0.67 kg / 1.477 lbs |
| Low Voltage Directive | EN 61558-2-6 |
