Control power transformers with galvanic isolation can be used, e.g., to supply reliable low contact voltage to FELV circuits. In accordance with EN 61558, control power transformers provide basic isolation between the primary and secondary sides at a minimum. This makes them ideal for creating new independent networks. BLOCK’s standard range includes power ratings of between 0.5 VA and 2,500 VA.
Product search for Control power transformers
Equipment type
Output power
- 0.35 VA (4)
- 0.5 VA (4)
- 1 VA (4)
- 1.2 VA (3)
- 1.5 VA (5)
- 10 VA (3)
- 100 VA (13)
- 1000 VA (6)
- 13 VA (1)
- 14 VA (1)
- 150 VA (13)
- 1500 VA (6)
- 16 VA (2)
- 18 VA (1)
- 2 VA (4)
- 2.3 VA (5)
- 2.8 VA (3)
- 20 VA (2)
- 200 VA (13)
- 2000 VA (6)
- 24 VA (1)
- 25 VA (1)
- 250 VA (13)
- 2500 VA (6)
- 3.2 VA (6)
- 30 VA (2)
- 300 VA (13)
- 350 VA (13)
- 4 VA (1)
- 4.5 VA (1)
- 5 VA (2)
- 50 VA (13)
- 500 VA (7)
- 6 VA (1)
- 7.5 VA (1)
- 75 VA (13)
- 750 VA (6)
- 8 VA (1)
Input voltage
Output voltage
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200 Versions of 9 products
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RKD
Toroidal safety isolating and isolating transformer
, PRI 2 x 115 Vac, SEC 2 x 6 – 2 x 115 Vac, 15 – 3,000 VA
| Version | Rated input voltage | Rated output voltage | Power | |
|---|---|---|---|---|
| RKD 20/2x24 | 2 x 115 Vac | 2 x 24 Vac | 20 VA | |
| RKD 30/2x24 | 2 x 115 Vac | 2 x 24 Vac | 30 VA |
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RTE
Toroidal safety isolating and isolating transformer
, PRI 230 Vac, SEC 2 x 12 – 2 x 35 Vac, 15 – 625 VA
| Version | Rated input voltage | Rated output voltage | Power | |
|---|---|---|---|---|
| RTE 20/2x24 | 230 Vac | 2 x 24 Vac | 20 VA | |
| RTE 30/2x24 | 230 Vac | 2 x 24 Vac | 30 VA |
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CT
Control power transformer
Base plate, PRI 2 x 240 Vac, 600 Vac, SEC 24 Vac, 120 Vac, 50 – 2,500 VA
| Version | Rated input voltage | Rated output voltage | Power | |
|---|---|---|---|---|
| CT-005-048-12-0 | 240 x 480 Vac | 120 Vac | 50 VA | |
| CT-005-048-12-1 | 240 x 480 Vac | 120 Vac | 50 VA | |
| CT-005-048-12-2 | 240 x 480 Vac | 120 Vac | 50 VA | |
| CT-005-048-24-0 | 240 x 480 Vac | 24 Vac | 50 VA | |
| CT-005-048-24-1 | 240 x 480 Vac | 24 Vac | 50 VA | |
| CT-005-048-24-2 | 240 x 480 Vac | 24 Vac | 50 VA | |
| CT-005-048-X1-0 | 240 x 480 Vac | 120 Vac + 24 Vac | 37 VA + 13 VA | |
| CT-005-060-12-0 | 600 Vac | 120 Vac | 50 VA | |
| CT-005-060-12-1 | 600 Vac | 120 Vac | 50 VA | |
| CT-005-060-12-2 | 600 Vac | 120 Vac | 50 VA | |
| CT-005-060-24-0 | 600 Vac | 24 Vac | 50 VA | |
| CT-005-060-24-1 | 600 Vac | 24 Vac | 50 VA | |
| CT-005-060-24-2 | 600 Vac | 24 Vac | 50 VA | |
| CT-007-048-12-0 | 240 x 480 Vac | 120 Vac | 75 VA | |
| CT-007-048-12-1 | 240 x 480 Vac | 120 Vac | 75 VA | |
| CT-007-048-12-2 | 240 x 480 Vac | 120 Vac | 75 VA | |
| CT-007-048-24-0 | 240 x 480 Vac | 24 Vac | 75 VA | |
| CT-007-048-24-1 | 240 x 480 Vac | 24 Vac | 75 VA | |
| CT-007-048-24-2 | 240 x 480 Vac | 24 Vac | 75 VA | |
| CT-007-048-X1-0 | 240 x 480 Vac | 120 Vac + 24 Vac | 57 VA + 18 VA | |
| CT-007-060-12-0 | 600 Vac | 120 Vac | 75 VA | |
| CT-007-060-12-1 | 600 Vac | 120 Vac | 75 VA | |
| CT-007-060-12-2 | 600 Vac | 120 Vac | 75 VA | |
| CT-007-060-24-0 | 600 Vac | 24 Vac | 75 VA | |
| CT-007-060-24-1 | 600 Vac | 24 Vac | 75 VA | |
| CT-007-060-24-2 | 600 Vac | 24 Vac | 75 VA | |
| CT-010-048-12-0 | 240 x 480 Vac | 120 Vac | 100 VA | |
| CT-010-048-12-1 | 240 x 480 Vac | 120 Vac | 100 VA | |
| CT-010-048-12-2 | 240 x 480 Vac | 120 Vac | 100 VA | |
| CT-010-048-24-0 | 240 x 480 Vac | 24 Vac | 100 VA | |
| CT-010-048-24-1 | 240 x 480 Vac | 24 Vac | 100 VA | |
| CT-010-048-24-2 | 240 x 480 Vac | 24 Vac | 100 VA | |
| CT-010-048-X1-0 | 240 x 480 Vac | 120 Vac + 24 Vac | 76 VA + 24 VA | |
| CT-010-060-12-0 | 600 Vac | 120 Vac | 100 VA | |
| CT-010-060-12-1 | 600 Vac | 120 Vac | 100 VA | |
| CT-010-060-12-2 | 600 Vac | 120 Vac | 100 VA | |
| CT-010-060-24-0 | 600 Vac | 24 Vac | 100 VA | |
| CT-010-060-24-1 | 600 Vac | 24 Vac | 100 VA | |
| CT-010-060-24-2 | 600 Vac | 24 Vac | 100 VA | |
| CT-015-048-12-0 | 240 x 480 Vac | 120 Vac | 150 VA | |
| CT-015-048-12-1 | 240 x 480 Vac | 120 Vac | 150 VA | |
| CT-015-048-12-2 | 240 x 480 Vac | 120 Vac | 150 VA | |
| CT-015-048-24-0 | 240 x 480 Vac | 24 Vac | 150 VA | |
| CT-015-048-24-1 | 240 x 480 Vac | 24 Vac | 150 VA | |
| CT-015-048-24-2 | 240 x 480 Vac | 24 Vac | 150 VA | |
| CT-015-048-X1-0 | 240 x 480 Vac | 120 Vac + 24 Vac | 112 VA + 38 VA | |
| CT-015-060-12-0 | 600 Vac | 120 Vac | 150 VA | |
| CT-015-060-12-1 | 600 Vac | 120 Vac | 150 VA | |
| CT-015-060-12-2 | 600 Vac | 120 Vac | 150 VA | |
| CT-015-060-24-0 | 600 Vac | 24 Vac | 150 VA | |
| CT-015-060-24-1 | 600 Vac | 24 Vac | 150 VA | |
| CT-015-060-24-2 | 600 Vac | 24 Vac | 150 VA | |
| CT-020-048-12-0 | 240 x 480 Vac | 120 Vac | 200 VA | |
| CT-020-048-12-1 | 240 x 480 Vac | 120 Vac | 200 VA | |
| CT-020-048-12-2 | 240 x 480 Vac | 120 Vac | 200 VA | |
| CT-020-048-24-0 | 240 x 480 Vac | 24 Vac | 200 VA | |
| CT-020-048-24-1 | 240 x 480 Vac | 24 Vac | 200 VA | |
| CT-020-048-24-2 | 240 x 480 Vac | 24 Vac | 200 VA | |
| CT-020-048-X1-0 | 240 x 480 Vac | 120 Vac + 24 Vac | 150 VA + 50 VA | |
| CT-020-060-12-0 | 600 Vac | 120 Vac | 200 VA | |
| CT-020-060-12-1 | 600 Vac | 120 Vac | 200 VA | |
| CT-020-060-12-2 | 600 Vac | 120 Vac | 200 VA | |
| CT-020-060-24-0 | 600 Vac | 24 Vac | 200 VA | |
| CT-020-060-24-1 | 600 Vac | 24 Vac | 200 VA | |
| CT-020-060-24-2 | 600 Vac | 24 Vac | 200 VA | |
| CT-025-048-12-0 | 240 x 480 Vac | 120 Vac | 250 VA | |
| CT-025-048-12-1 | 240 x 480 Vac | 120 Vac | 250 VA | |
| CT-025-048-12-2 | 240 x 480 Vac | 120 Vac | 250 VA | |
| CT-025-048-24-0 | 240 x 480 Vac | 24 Vac | 250 VA | |
| CT-025-048-24-1 | 240 x 480 Vac | 24 Vac | 250 VA | |
| CT-025-048-24-2 | 240 x 480 Vac | 24 Vac | 250 VA | |
| CT-025-048-X1-0 | 240 x 480 Vac | 120 Vac + 24 Vac | 187 VA + 63 VA | |
| CT-025-060-12-0 | 600 Vac | 120 Vac | 250 VA | |
| CT-025-060-12-1 | 600 Vac | 120 Vac | 250 VA | |
| CT-025-060-12-2 | 600 Vac | 120 Vac | 250 VA | |
| CT-025-060-24-0 | 600 Vac | 24 Vac | 250 VA | |
| CT-025-060-24-1 | 600 Vac | 24 Vac | 250 VA | |
| CT-025-060-24-2 | 600 Vac | 24 Vac | 250 VA | |
| CT-030-048-12-0 | 240 x 480 Vac | 120 Vac | 300 VA | |
| CT-030-048-12-1 | 240 x 480 Vac | 120 Vac | 300 VA | |
| CT-030-048-12-2 | 240 x 480 Vac | 120 Vac | 300 VA | |
| CT-030-048-24-0 | 240 x 480 Vac | 24 Vac | 300 VA | |
| CT-030-048-24-1 | 240 x 480 Vac | 24 Vac | 300 VA | |
| CT-030-048-24-2 | 240 x 480 Vac | 24 Vac | 300 VA | |
| CT-030-048-X1-0 | 240 x 480 Vac | 120 Vac + 24 Vac | 225 VA + 75 VA | |
| CT-030-060-12-0 | 600 Vac | 120 Vac | 300 VA | |
| CT-030-060-12-1 | 600 Vac | 120 Vac | 300 VA | |
| CT-030-060-12-2 | 600 Vac | 120 Vac | 300 VA | |
| CT-030-060-24-0 | 600 Vac | 24 Vac | 300 VA | |
| CT-030-060-24-1 | 600 Vac | 24 Vac | 300 VA | |
| CT-030-060-24-2 | 600 Vac | 24 Vac | 300 VA | |
| CT-035-048-12-0 | 240 x 480 Vac | 120 Vac | 350 VA | |
| CT-035-048-12-1 | 240 x 480 Vac | 120 Vac | 350 VA | |
| CT-035-048-12-2 | 240 x 480 Vac | 120 Vac | 350 VA | |
| CT-035-048-24-0 | 240 x 480 Vac | 24 Vac | 350 VA | |
| CT-035-048-24-1 | 240 x 480 Vac | 24 Vac | 350 VA | |
| CT-035-048-24-2 | 240 x 480 Vac | 24 Vac | 350 VA | |
| CT-035-048-X1-0 | 240 x 480 Vac | 120 Vac + 24 Vac | 263 VA + 87 VA | |
| CT-035-060-12-0 | 600 Vac | 120 Vac | 350 VA | |
| CT-035-060-12-1 | 600 Vac | 120 Vac | 350 VA | |
| CT-035-060-12-2 | 600 Vac | 120 Vac | 350 VA | |
| CT-035-060-24-0 | 600 Vac | 24 Vac | 350 VA | |
| CT-035-060-24-1 | 600 Vac | 24 Vac | 350 VA | |
| CT-035-060-24-2 | 600 Vac | 24 Vac | 350 VA | |
| CT-050-048-12-0 | 240 x 480 Vac | 120 Vac | 500 VA | |
| CT-050-048-12-1 | 240 x 480 Vac | 120 Vac | 500 VA | |
| CT-050-048-12-2 | 240 x 480 Vac | 120 Vac | 500 VA | |
| CT-050-048-X1-0 | 240 x 480 Vac | 120 Vac + 24 Vac | 375 VA + 125 VA | |
| CT-050-060-12-0 | 600 Vac | 120 Vac | 500 VA | |
| CT-050-060-12-1 | 600 Vac | 120 Vac | 500 VA | |
| CT-050-060-12-2 | 600 Vac | 120 Vac | 500 VA | |
| CT-075-048-12-0 | 240 x 480 Vac | 120 Vac | 750 VA | |
| CT-075-048-12-1 | 240 x 480 Vac | 120 Vac | 750 VA | |
| CT-075-048-12-2 | 240 x 480 Vac | 120 Vac | 750 VA | |
| CT-075-060-12-0 | 600 Vac | 120 Vac | 750 VA | |
| CT-075-060-12-1 | 600 Vac | 120 Vac | 750 VA | |
| CT-075-060-12-2 | 600 Vac | 120 Vac | 750 VA | |
| CT-100-048-12-0 | 240 x 480 Vac | 120 Vac | 1,000 VA | |
| CT-100-048-12-1 | 240 x 480 Vac | 120 Vac | 1,000 VA | |
| CT-100-048-12-2 | 240 x 480 Vac | 120 Vac | 1,000 VA | |
| CT-100-060-12-0 | 600 Vac | 120 Vac | 1,000 VA | |
| CT-100-060-12-1 | 600 Vac | 120 Vac | 1,000 VA | |
| CT-100-060-12-2 | 600 Vac | 120 Vac | 1,000 VA | |
| CT-150-048-12-0 | 240 x 480 Vac | 120 Vac | 1,500 VA | |
| CT-150-048-12-1 | 240 x 480 Vac | 120 Vac | 1,500 VA | |
| CT-150-048-12-2 | 240 x 480 Vac | 120 Vac | 1,500 VA | |
| CT-150-060-12-0 | 600 Vac | 120 Vac | 1,500 VA | |
| CT-150-060-12-1 | 600 Vac | 120 Vac | 1,500 VA | |
| CT-150-060-12-2 | 600 Vac | 120 Vac | 1,500 VA | |
| CT-200-048-12-0 | 240 x 480 Vac | 120 Vac | 2,000 VA | |
| CT-200-048-12-1 | 240 x 480 Vac | 120 Vac | 2,000 VA | |
| CT-200-048-12-2 | 240 x 480 Vac | 120 Vac | 2,000 VA | |
| CT-200-060-12-0 | 600 Vac | 120 Vac | 2,000 VA | |
| CT-200-060-12-1 | 600 Vac | 120 Vac | 2,000 VA | |
| CT-200-060-12-2 | 600 Vac | 120 Vac | 2,000 VA | |
| CT-250-048-12-0 | 240 x 480 Vac | 120 Vac | 2,500 VA | |
| CT-250-048-12-1 | 240 x 480 Vac | 120 Vac | 2,500 VA | |
| CT-250-048-12-2 | 240 x 480 Vac | 120 Vac | 2,500 VA | |
| CT-250-060-12-0 | 600 Vac | 120 Vac | 2,500 VA | |
| CT-250-060-12-1 | 600 Vac | 120 Vac | 2,500 VA | |
| CT-250-060-12-2 | 600 Vac | 120 Vac | 2,500 VA |
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VB
Short-circuit proof PCB transformer
Versions with dual output voltage, PRI 230 Vac, SEC 6 – 24 Vac, 0.35 – 3.2 VA
| Version | Rated input voltage | Rated output voltage | Power | |
|---|---|---|---|---|
| VB 0,35/2/15 | 230 Vac | 2 x 15 Vac | 0.35 VA | |
| VB 0,35/2/18 | 230 Vac | 2 x 18 Vac | 0.35 VA | |
| VB 0,35/2/24 | 230 Vac | 2 x 24 Vac | 0.35 VA | |
| VB 0,5/2/15 | 230 Vac | 2 x 15 Vac | 0.5 VA | |
| VB 0,5/2/18 | 230 Vac | 2 x 18 Vac | 0.5 VA | |
| VB 0,5/2/24 | 230 Vac | 2 x 24 Vac | 0.5 VA | |
| VB 1,0/2/18 | 230 Vac | 2 x 18 Vac | 1 VA | |
| VB 1,0/2/24 | 230 Vac | 2 x 24 Vac | 1 VA | |
| VB 1,2/2/15 | 230 Vac | 2 x 15 Vac | 1.2 VA | |
| VB 1,2/2/18 | 230 Vac | 2 x 18 Vac | 1.2 VA | |
| VB 1,2/2/24 | 230 Vac | 2 x 24 Vac | 1.2 VA | |
| VB 1,5/2/15 | 230 Vac | 2 x 15 Vac | 1.5 VA | |
| VB 1,5/2/18 | 230 Vac | 2 x 18 Vac | 1.5 VA | |
| VB 1,5/2/24 | 230 Vac | 2 x 24 Vac | 1.5 VA | |
| VB 2,0/2/15 | 230 Vac | 2 x 15 Vac | 2 VA | |
| VB 2,0/2/18 | 230 Vac | 2 x 18 Vac | 2 VA | |
| VB 2,0/2/24 | 230 Vac | 2 x 24 Vac | 2 VA | |
| VB 2,3/2/15 | 230 Vac | 2 x 15 Vac | 2.3 VA | |
| VB 2,3/2/18 | 230 Vac | 2 x 18 Vac | 2.3 VA | |
| VB 2,3/2/24 | 230 Vac | 2 x 24 Vac | 2.3 VA | |
| VB 2,8/2/15 | 230 Vac | 2 x 15 Vac | 2.8 VA | |
| VB 2,8/2/18 | 230 Vac | 2 x 18 Vac | 2.8 VA | |
| VB 2,8/2/24 | 230 Vac | 2 x 24 Vac | 2.8 VA | |
| VB 3,2/2/15 | 230 Vac | 2 x 15 Vac | 3.2 VA | |
| VB 3,2/2/18 | 230 Vac | 2 x 18 Vac | 3.2 VA | |
| VB 3,2/2/24 | 230 Vac | 2 x 24 Vac | 3.2 VA |
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AVB
Short-circuit proof PCB transformer
Encapsulated, PRI 2 x 115 Vac, SEC 2 x 6 – 2 x 24 Vac, 0.35 – 3.2 VA
| Version | Rated input voltage | Rated output voltage | Power | |
|---|---|---|---|---|
| AVB 0,35/2/15 | 2 x 115 Vac | 2 x 15 Vac | 0.35 VA | |
| AVB 0,5/2/15 | 2 x 115 Vac | 2 x 15 Vac | 0.5 VA | |
| AVB 1,0/2/18 | 2 x 115 Vac | 2 x 18 Vac | 1 VA | |
| AVB 1,0/2/24 | 2 x 115 Vac | 2 x 24 Vac | 1 VA | |
| AVB 1,5/2/18 | 2 x 115 Vac | 2 x 18 Vac | 1.5 VA | |
| AVB 1,5/2/24 | 2 x 115 Vac | 2 x 24 Vac | 1.5 VA | |
| AVB 2,3/2/18 | 2 x 115 Vac | 2 x 18 Vac | 2.3 VA | |
| AVB 2,3/2/24 | 2 x 115 Vac | 2 x 24 Vac | 2.3 VA | |
| AVB 3,2/2/24 | 2 x 115 Vac | 2 x 24 Vac | 3.2 VA |
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VC
PCB transformer
Versions with dual output voltage, PRI 230 Vac, SEC 6 – 24 Vac, 3.2 – 16 VA
| Version | Rated input voltage | Rated output voltage | Power | |
|---|---|---|---|---|
| VC 3,2/2/18 | 230 Vac | 2 x 18 Vac | 3.2 VA | |
| VC 3,2/2/24 | 230 Vac | 2 x 24 Vac | 3.2 VA | |
| VC 5,0/2/24 | 230 Vac | 2 x 24 Vac | 5 VA | |
| VC 10/2/24 | 230 Vac | 2 x 24 Vac | 10 VA | |
| VC 16/2/24 | 230 Vac | 2 x 24 Vac | 16 VA |
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VCM
PCB transformer, mountable
Versions with dual output voltage, PRI 230 Vac, SEC 6 – 24 Vac, 5 – 50 VA
| Version | Rated input voltage | Rated output voltage | Power | |
|---|---|---|---|---|
| VCM 5,0/2/24 | 230 Vac | 2 x 24 Vac | 5 VA | |
| VCM 10/2/24 | 230 Vac | 2 x 24 Vac | 10 VA | |
| VCM 16/2/24 | 230 Vac | 2 x 24 Vac | 16 VA | |
| VCM 25/2/24 | 230 Vac | 2 x 24 Vac | 25 VA |
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FL
Low profile transformer
Encapsulated, PRI 2 x 115 Vac, SEC 2 x 5 – 2 x 24 Vac , 2 – 52 VA
| Version | Rated input voltage | Rated output voltage | Power | |
|---|---|---|---|---|
| FL 2/24 | 2 x 115 Vac | 2 x 24 Vac | 2 VA | |
| FL 4/24 | 2 x 115 Vac | 2 x 24 Vac | 4 VA | |
| FL 6/24 | 2 x 115 Vac | 2 x 24 Vac | 6 VA | |
| FL 8/24 | 2 x 115 Vac | 2 x 24 Vac | 8 VA | |
| FL 10/24 | 2 x 115 Vac | 2 x 24 Vac | 10 VA | |
| FL 14/24 | 2 x 115 Vac | 2 x 24 Vac | 14 VA | |
| FL 18/24 | 2 x 115 Vac | 2 x 24 Vac | 18 VA | |
| FL 24/24 | 2 x 115 Vac | 2 x 24 Vac | 24 VA |
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PT
Short-circuit proof PCB transformer
Encapsulated, PRI 230 Vac, SEC 6 – 2 x 24 Vac, 4.5 – 30 VA
| Version | Rated input voltage | Rated output voltage | Power | |
|---|---|---|---|---|
| PT 4,5/2/24 | 230 Vac | 2 x 24 Vac | 4.5 VA | |
| PT 7,5/2/24 | 230 Vac | 2 x 24 Vac | 7.5 VA | |
| PT 13/2/24 | 230 Vac | 2 x 24 Vac | 13 VA |
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