1AC PCB Transformer, uncovered version, encapsulated coil, additional mounting optionsPTB 4.4 - 26VA according to IEC/EN61558-2-4/-6

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Isolating Transformer

according to IEC/EN61558-2-4 for general applications, e.g. galvanic isolation for devices according to VDE0700/EN60335 regulations.

Safety Transformer

according to IEC/EN61558-2-6 for general applications with double or reinforced insulation and max. output voltage of 50 V, e.g. galvanic isolation for devices according to VDE0805/EN60950 regulations.

Specifications

  • Connections: PCB with solder pins Ø 0.8mm. Recommended board mounting holes: 1.2mm.
  • Encapsulated coil (mounting according to protection class II or III ready) allows mounting of other components close to the transformer.
  • Additionally to PT types PTB offers an integrated distant piece including mounting option.
  • Due to innovative vacuum impregnation in polyester varnish, the noise level is extraordinary low. Any mounting position or angle possible.Short-circuit proof designs on request (combined with external fuse and built-in temperature limiter)
  • Catalog mentioned lead-wire spacing and pin assignment is standard.

1 phase isolating-/ safety PCB type transformer according to IEC/EN61558-2-4; EN61558-2-6; coil with additional mounting option 2 chamber version

Input voltage100 … 400V ( 1 winding )
Output voltage6 … 50V ( 1 oder 2 windings )
Rated frequency50/60 Hz
Power range4,4 … 26VA
Max. ambient temperature40°C
UL-Insulation system (optional)OBJY2.E181051
Insulation class (IEC85)B 130°C
Fire protection classUL94HB (V-0 possible)
Protection class (ready)II bzw. III
  • Connections: Solder pins, diameter = Ø 0.8 mm
  • Version with 2 winding chambers
  • Additional mounting option
  • Integrated spacer
  • Any mounting position or angle possible
  • Transformer completely vacuum impregnated

Ua = Rated output voltage

Power
VA
Open-circuit
voltage Ua x …
Dimensions
approx. mm
Copper weight
KG
Total weight
KG
Core sizeType
ABCDEFabc
4,41,5142,041,535,430,235,028,025,015,025,00,,030,18EI42/14,8PTB044
8,01,3648,047,543,035,040,032,025,015,027,50,0420,26Ei48/16,8PTB080
11,51,3048,047,543,038,640,032,025,015,027,50,0550,32EI48/20,5PTB115
13,01,3154,053,645,439,745,036,030,020,030,00,0650,34EI54/18,8PTB130
20,01,2260,057,850,043,450,040,030,020,032,50,0920,52EI60/21PTB200
26,01,2060,057,850,048,050,040,030,020,032,50,100,58EI60/25PTB260