Block RKD/RTE Toroidal Isolation Transformers 120VA

Block Brand: Block

The Block RKD/RTE Toroidal Isolation Transformers 120VA act as a mains transformer for adjustment of the voltage and simple electrical isolation, while also acting as a safety isolating transformer for the safe electrical isolation of the input and output sides. These transformers may be used to set up protective separation as a protective measure in accordance with VDE 0100, and are also suitable for creating SELV and PELV circuits because of the limit on the output voltage. Additionally equipped with double voltage for series or parallel connection, along with reinforced insulation between PRI and SEC.

  • Low weight
  • Optimum Efficiency
  • Minimal no-load losses
  • Minimum size at high output
  • Very low magnetic and noise field
  • Outstanding temperature behaviour thanks to low magnetic leakage field
Description Image Product Buy Pricing (Ex VAT) Power Rating Weight Type Primary Voltage Number of Outputs Encapsulated Mounting Type Secondary Voltage
Block RTE 20/2x12 20 VA toroidal isolation transformer 230 V to 2 x 12 V
Block RTE 20/2x12 20 VA toroidal isolation transformer 230 V to 2 x 12 V
Order code: 51-5798
MPN: RTE 20/2x12
1+ £40.10
Price per unit Ex VAT 		20VA 0.35kg Toroidal transformer 230V 2 No Toroidal 2 x 12V
Block RTE 30/2x12 30 VA toroidal isolation transformer 230 V to 2 x 12 V
Block RTE 30/2x12 30 VA toroidal isolation transformer 230 V to 2 x 12 V
Extended range
Order code: 51-5825
MPN: RTE 30/2x12

Available to back orderBack order, lead time 3 weeks
1+ £45.35
10+ £42.90
100+ £42.65
Price per unit Ex VAT 		30VA 0.46kg Toroidal transformer 230V 2 No Toroidal 2 x 12V
Block RTE 40/2x12 40 VA toroidal isolation transformer 230 V to 2 x 12 V
Block RTE 40/2x12 40 VA toroidal isolation transformer 230 V to 2 x 12 V
Extended range
Order code: 51-5780
MPN: RTE 40/2x12

Back order - 3 availableBack-order availability date - 28/10/2026
1+ £49.55
10+ £46.87
100+ £46.60
Price per unit Ex VAT 		40VA 0.56kg Toroidal transformer 230V 2 No Toroidal 2 x 12V
Block RTE 50/2x12 50 VA toroidal isolation transformer 230 V to 2 x 12 V
Block RTE 50/2x12 50 VA toroidal isolation transformer 230 V to 2 x 12 V
Order code: 51-5794
MPN: RTE 50/2x12
1+ £46.47
Price per unit Ex VAT 		50VA 0.7kg Toroidal transformer 230V 2 No Toroidal 2 x 12V
Block RTE 60/2x12 60 VA toroidal isolation transformer 230 V to 2 x 12 V
Block RTE 60/2x12 60 VA toroidal isolation transformer 230 V to 2 x 12 V
Order code: 51-5807
MPN: RTE 60/2x12
1+ £44.25
Price per unit Ex VAT 		60VA 0.75kg Toroidal transformer 230V 2 No Toroidal 2 x 12V
Block RTE 80/2x12 80 VA toroidal isolation transformer 230 V to 2 x 12 V
Block RTE 80/2x12 80 VA toroidal isolation transformer 230 V to 2 x 12 V
Order code: 51-5815
MPN: RTE 80/2x12
1+ £40.32
Price per unit Ex VAT 		80VA 1.08kg Toroidal transformer 230V 2 No Toroidal 2 x 12V
Block RTE 100/2x12 100 VA toroidal isolation transformer 230 V to 2 x 12 V
Block RTE 100/2x12 100 VA toroidal isolation transformer 230 V to 2 x 12 V
Extended range
Order code: 51-5826
MPN: RTE 100/2x12

Back order - 3 availableBack-order availability date - 28/10/2026
1+ £57.63
10+ £54.51
100+ £54.20
Price per unit Ex VAT 		100VA 1.2kg Toroidal transformer 230V 2 No Toroidal 2 x 12V
Block RTE 120/2x12 120 VA toroidal isolation transformer 230 V to 2 x 12 V
Block RTE 120/2x12 120 VA toroidal isolation transformer 230 V to 2 x 12 V
Extended range
Order code: 51-5777
MPN: RTE 120/2x12

Back order - 3 availableBack-order availability date - 28/10/2026
1+ £57.05
Price per unit Ex VAT 		120VA 1.41kg Toroidal transformer 230V 2 No Toroidal 2 x 12V
Block RTE 160/2x12 160 VA toroidal isolation transformer 230 V to 2 x 12 V
Block RTE 160/2x12 160 VA toroidal isolation transformer 230 V to 2 x 12 V
Extended range
Order code: 51-5791
MPN: RTE 160/2x12

Back order - 1 availableBack-order availability date - 28/10/2026
1+ £78.31
10+ £74.69
100+ £74.32
Price per unit Ex VAT 		160VA 1.73kg Toroidal transformer 230V 2 No Toroidal 2 x 12V
Block RTE 200/2x12 200 VA toroidal isolation transformer 230 V to 2 x 12 V
Block RTE 200/2x12 200 VA toroidal isolation transformer 230 V to 2 x 12 V
Extended range
Order code: 51-5806
MPN: RTE 200/2x12

Back order - 8 availableBack-order availability date - 28/10/2026
1+ £83.57
10+ £79.71
100+ £79.32
Price per unit Ex VAT 		200VA 2.16kg Toroidal transformer 230V 2 No Toroidal 2 x 12V
Block RTE 225/2x12 225 VA toroidal isolation transformer 230 V to 2 x 12 V
Block RTE 225/2x12 225 VA toroidal isolation transformer 230 V to 2 x 12 V
Order code: 51-5814
MPN: RTE 225/2x12
1+ £76.93
Price per unit Ex VAT 		225VA 2.35kg Toroidal transformer 230V 2 No Toroidal 2 x 12V
Block RTE 250/2x12 250 VA toroidal isolation transformer 230 V to 2 x 12 V
Block RTE 250/2x12 250 VA toroidal isolation transformer 230 V to 2 x 12 V
Extended range
Order code: 51-5820
MPN: RTE 250/2x12

Back order - 5 availableBack-order availability date - 28/10/2026
1+ £93.42
10+ £89.10
100+ £88.67
Price per unit Ex VAT 		250VA 2.52kg Toroidal transformer 230V 2 No Toroidal 2 x 12V

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