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Block EL Safety Isolating Transformers 2 x 18V

Block Brand: Block

The Block EL Safety Isolating Transformers 2 x 18V are ideal for the safe electrical isolation of the input and output sides. The transformers are suitable for creating SELV and PELV circuits because of the limit on the output voltage. Well designed using safety coil bobbin in 2-chamber technology, featuring a mechanically protected winding wire feature in the coil bobbin, they offer very good corrosion protection and low noise thanks to BLOCKIMPEX vacuum impregnation.

  • Solder tab for free wiring
  • Coil shell in 2-chamber technology
  • Simple mounting with robust metal footplate with oval slots
Description Image Product Buy Pricing (Ex VAT) Power Rating Height Length Width Primary Voltages Secondary Voltage
Block EL 13/18, 13VA Transformer, 2 x 18V
Block EL 13/18, 13VA Transformer, 2 x 18V
Extended range
Order code: 51-5337
MPN: EL 13/18

5 available to back orderBack-order availability date - 04/02/2026
1+ £16.61
Price per unit Ex VAT 		13VA 50mm 54mm 40mm 230V 2 x 18V
Block EL 50/18, 50VA Transformer, 2 x 18V
Block EL 50/18, 50VA Transformer, 2 x 18V
Extended range
Order code: 51-5351
MPN: EL 50/18

4 available to back orderBack-order availability date - 04/02/2026
1+ £35.68
Price per unit Ex VAT 		50VA 67mm 75mm 59mm 230V 2 x 18V
Block EL 100/18, 100VA Transformer, 2 x 18V
Block EL 100/18, 100VA Transformer, 2 x 18V
Extended range
Order code: 51-5332
MPN: EL 100/18

5 available to back orderBack-order availability date - 04/02/2026
1+ £37.70
Price per unit Ex VAT 		100VA 76mm 84mm 80mm 230V 2 x 18V
Order code51-535651-533751-534151-534651-535151-5332
Ambient temperature range+40°C (max)+40°C (max)+40°C (max)+40°C (max)+40°C (max)+40°C (max)
ConstructionOpenOpenOpenOpenOpenOpen
Efficiency62%67%72%77%81%88%
FixingSolder connectionSolder connectionSolder connectionSolder connectionSolder connectionSolder connection
Fixing typeM3 screwsM3 screwsM3 screwsM3 screwsM4 screwsM4 screws
Frequency50-60Hz50-60Hz50-60Hz50-60Hz50-60Hz50-60Hz
Power7.5VA13VA18VA28VA50VA100VA
Primary voltage230V230V230V230V230V230V
Secondary current208mA361mA500mA777mA1.39A2.78A
Secondary voltage2 x 18V2 x 18V2 x 18V2 x 18V2 x 18V2 x 18V
Test voltage4000V4000V4000V4000V4000V4000V
TypeEL 7.5/18EL 13/18EL 18/18EL 28/18EL 50/18EL 100/18


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