EF 42SB250
Single-phase isolating transformer
Identification
- Article number
- EF 42SB250
- Description
- Eenfase veiligheidstransformator - IP54 - Transformator voor toepassing in een berging - Upri 230-400V // Usec 42V - Vermogen 250VA
- Code
- 2067
- EAN code
- 5414503003546
- Brand
- EREA
- Type
Electrical properties
- Dielectric Strenght (Vac)
- 4500 Vac
- Dielectric strength referred to frame (Vac)
- -
- Efficiency (%)
- 90 %.
- Pcu (W)
- 16,2 W
- Po (W)
- 10 W
- Power (VA)
- 250 VA
- Primary Voltage (Vac)
- 230-400 Vac
- Secondary Voltage (Vac)
- 42 Vac
- Short-circuit voltage (Ucc %)
- 7,3 %.
- Voltage drop (dU%)
- 6,4 %.
General properties
- Applications
- For all applications
- Degree of protection
- IP54
- Maximum ambient temperatur ta (°C)
- 40 °C
- Protection class
- II
- Standards
- EN 61558-2-4
EN 60742 - Temperature class transfo
- E
Mechanical properties
- Dimension D (mm)
- 80 mm
- Dimension E (mm)
- 64 mm
- Dimensions A x B x C (mm)
- 107 mm
- Finishing
- Vacuum-encapsulated with synthetic resin
- Primary connection
- Screw terminals 4 mm²
- Secondary connection
- Screw terminals 4 mm²
- Weight (kg)
- 3,8 kg
- Φ (mm)
- 4,5 mm
Options
- On request
- Other voltage and power ratings
Connections with insulated wires and mains cables
With fuses
With electrostatic screens - Option Housing IP20 (accessory)
- -
- Option Housing IP23 (accessory)
- -
Dimensioning

Electrical diagram

Symbol
