Block Control Panel Transformers Control transformer 618821

Block Brand: Block
The Block transformers are reliable electrical components designed for low inrush current applications, available in various power ratings and configurations to suit diverse requirements.
Description Image Product Buy Pricing (Ex VAT) Dim Efficiency Height Length Mounting Type Number of Outputs Output voltage (number x voltage) Output Voltage Power Standards Width Type Connection Design type Fitting method Frequency Input voltage (number x voltage) Insulation class Max. ambient temperature Number of Inputs
Block STU 100/2x115 Transformer 100 VA Low Inrush Screw Terminals
Block STU 100/2x115 Transformer 100 VA Low Inrush Screw Terminals
Extended range
Order code: 01-6427
MPN: STU 100/2x115

8 available to back orderBack-order availability date - 19/12/2025
1+ £52.86
Price per unit Ex VAT 		(L x W x H) 90 x 84 x 94 mm 86% 94mm 90mm L-piece 2 2 x 115 V AC, 230 V AC 100VA VDE 0570 Part 2-4, DIN EN 61558-2-2, EN 61558-2-2, IEC 61558-2-4, UL 5085-1/-2, CSA 22.2 No.66 84mm Control transformer Screw terminal open Base plate 50 - 60Hz 1 x 210 V AC, 230 V AC, 250 V AC, 380 V AC, 400 V AC, 420 V AC, 440 V AC, 460 V AC, 480 V AC, 500 V AC, 520 V AC, 540 V AC VDE = B, UL = class 105 +40°C 1
Block STU 1000/2x115 Transformer 1000VA Low Inrush Screw Terminals
Block STU 1000/2x115 Transformer 1000VA Low Inrush Screw Terminals
Extended range
Order code: 01-6428
MPN: STU 1000/2x115

1 available to back orderBack-order availability date - 19/12/2025
1+ £186.60
Price per unit Ex VAT 		(L x W x H) 156 x 150 x 149 mm 94% 149mm 156mm L-piece 2 2 x 115 V AC, 230 V AC 1000VA VDE 0570 Part 2-4, DIN EN 61558-2-2, EN 61558-2-2, IEC 61558-2-4, UL 5085-1/-2, CSA 22.2 No.66 150mm Control transformer Screw terminal open Base plate 50 - 60Hz 1 x 210 V AC, 230 V AC, 250 V AC, 380 V AC, 400 V AC, 420 V AC, 440 V AC, 460 V AC, 480 V AC, 500 V AC, 520 V AC, 540 V AC VDE = B, UL = class 105 +40°C 1
Block STU 160/24 Transformer 210-540V AC to 24V AC Low Inrush 160VA
Block STU 160/24 Transformer 210-540V AC to 24V AC Low Inrush 160VA
Extended range
Order code: 01-6429
MPN: STU 160/24

4 available to back orderBack-order availability date - 19/12/2025
1+ £60.14
Price per unit Ex VAT 		(L x W x H) 88 x 96 x 105 mm 87% 105mm 88mm L-piece 1 1 x 24 V AC 24V AC 160VA VDE 0570 Part 2-4, DIN EN 61558-2-2, EN 61558-2-2, IEC 61558-2-4, UL 5085-1/-2, CSA 22.2 No.66 96mm Control transformer Screw terminal open Base plate 50 - 60Hz 1 x 210 V AC, 230 V AC, 250 V AC, 380 V AC, 400 V AC, 420 V AC, 440 V AC, 460 V AC, 480 V AC, 500 V AC, 520 V AC, 540 V AC VDE = B, UL = class 105 +40°C 1
Block STU 160/2x115 Transformer 100VA Low Inrush Safety Isolation
Block STU 160/2x115 Transformer 100VA Low Inrush Safety Isolation
Extended range
Order code: 01-6430
MPN: STU 160/2x115

2 available to back orderBack-order availability date - 19/12/2025
1+ £62.77
Price per unit Ex VAT 		(L x W x H) 92 x 96 x 105 mm 87% 105mm 92mm L-piece 2 2 x 115 V AC, 230 V AC 100VA VDE 0570 Part 2-4, DIN EN 61558-2-2, EN 61558-2-2, IEC 61558-2-4, UL 5085-1/-2, CSA 22.2 No.66 96mm Control transformer Screw terminal open Base plate 50 - 60Hz 1 x 210 V AC, 230 V AC, 250 V AC, 380 V AC, 400 V AC, 420 V AC, 440 V AC, 460 V AC, 480 V AC, 500 V AC, 520 V AC, 540 V AC VDE = B, UL = class 105 +40°C 1
Block STU 1600/2x115 Transformer 1600VA Low Inrush Screw Terminals
Block STU 1600/2x115 Transformer 1600VA Low Inrush Screw Terminals
Extended range
Order code: 01-6431
MPN: STU 1600/2x115

Available to back orderBack order, lead time 11 days
1+ £292.39
Price per unit Ex VAT 		(L x W x H) 146 x 192 x 182 mm 94% 182mm 146mm L-piece 2 2 x 115 V AC, 230 V AC 1600VA VDE 0570 Part 2-4, DIN EN 61558-2-2, EN 61558-2-2, IEC 61558-2-4, UL 5085-1/-2, CSA 22.2 No.66 192mm Control transformer Screw terminal open Base plate 50 - 60Hz 1 x 210 V AC, 230 V AC, 250 V AC, 380 V AC, 400 V AC, 420 V AC, 440 V AC, 460 V AC, 480 V AC, 500 V AC, 520 V AC, 540 V AC VDE = B, UL = class 105 +40°C 1
Block STU 2000/2x115 Current Transformer 2000 VA 115-540 V AC
Block STU 2000/2x115 Current Transformer 2000 VA 115-540 V AC
Extended range
Order code: 01-6432
MPN: STU 2000/2x115

1 available to back orderBack-order availability date - 19/12/2025
1+ £321.02
Price per unit Ex VAT 		(L x W x H) 183 x 192 x 182 mm 95% 182mm 183mm L-piece 2 2 x 115 V AC, 230 V AC 2000VA VDE 0570 Part 2-4, DIN EN 61558-2-2, EN 61558-2-2, IEC 61558-2-4, UL 5085-1/-2, CSA 22.2 No.66 192mm Control transformer Screw terminal open Base plate 50 - 60Hz 1 x 210 V AC, 230 V AC, 250 V AC, 380 V AC, 400 V AC, 420 V AC, 440 V AC, 460 V AC, 480 V AC, 500 V AC, 520 V AC, 540 V AC VDE = B, UL = class 105 +40°C 1
Block STU 250/2x115 Transformer 250VA Low Inrush Screw Terminals
Block STU 250/2x115 Transformer 250VA Low Inrush Screw Terminals
Extended range
Order code: 01-6433
MPN: STU 250/2x115

Available to back orderBack order, lead time 11 days
1+ £76.92
Price per unit Ex VAT 		(L x W x H) 92 x 120 x 123 mm 90% 123mm 92mm L-piece 2 2 x 115 V AC, 230 V AC 250VA VDE 0570 Part 2-4, DIN EN 61558-2-2, EN 61558-2-2, IEC 61558-2-4, UL 5085-1/-2, CSA 22.2 No.66 120mm Control transformer Screw terminal open Base plate 50 - 60Hz 1 x 210 V AC, 230 V AC, 250 V AC, 380 V AC, 400 V AC, 420 V AC, 440 V AC, 460 V AC, 480 V AC, 500 V AC, 520 V AC, 540 V AC VDE = B, UL = class 105 +40°C 1
Block STU 400/24 Transformer: 1x210-540V AC Low Inrush Current Safe
Block STU 400/24 Transformer: 1x210-540V AC Low Inrush Current Safe
Extended range
Order code: 01-6434
MPN: STU 400/24

1 available to back orderBack-order availability date - 19/12/2025
1+ £104.79
Price per unit Ex VAT 		(L x W x H) 102 x 120 x 123 mm 91% 123mm 102mm L-piece 1 1 x 24 V AC 24V AC 400VA VDE 0570 Part 2-4, DIN EN 61558-2-2, EN 61558-2-2, IEC 61558-2-4, UL 5085-1/-2, CSA 22.2 No.66 120mm Control transformer Screw terminal open Base plate 50 - 60Hz 1 x 210 V AC, 230 V AC, 250 V AC, 380 V AC, 400 V AC, 420 V AC, 440 V AC, 460 V AC, 480 V AC, 500 V AC, 520 V AC, 540 V AC VDE = B, UL = class 105 +40°C 1
Block STU 500/24 Transformer Safety & Isolation 1x24V AC 500 VA
Block STU 500/24 Transformer Safety & Isolation 1x24V AC 500 VA
Extended range
Order code: 01-6435
MPN: STU 500/24

1 available to back orderBack-order availability date - 19/12/2025
1+ £116.70
Price per unit Ex VAT 		(L x W x H) 122 x 150 x 126 mm 91% 126mm 122mm L-piece 1 1 x 24 V AC 24V AC 500VA VDE 0570 Part 2-4, DIN EN 61558-2-2, EN 61558-2-2, IEC 61558-2-4, UL 5085-1/-2, CSA 22.2 No.66 150mm Control transformer Screw terminal open Base plate 50 - 60Hz 1 x 210 V AC, 230 V AC, 250 V AC, 380 V AC, 400 V AC, 420 V AC, 440 V AC, 460 V AC, 480 V AC, 500 V AC, 520 V AC, 540 V AC VDE = B, UL = class 105 +40°C 1
Block STU 500/2x115 Isolation Transformer Low Inrush 115V/230V 500VA
Block STU 500/2x115 Isolation Transformer Low Inrush 115V/230V 500VA
Extended range
Order code: 01-6436
MPN: STU 500/2x115

Available to back orderBack order, lead time 11 days
1+ £116.70
Price per unit Ex VAT 		(L x W x H) 124 x 120 x 123 mm 91% 123mm 124mm L-piece 2 2 x 115 V AC, 230 V AC 500VA VDE 0570 Part 2-4, DIN EN 61558-2-2, EN 61558-2-2, IEC 61558-2-4, UL 5085-1/-2, CSA 22.2 No.66 120mm Control transformer Screw terminal open Base plate 50 - 60Hz 1 x 210 V AC, 230 V AC, 250 V AC, 380 V AC, 400 V AC, 420 V AC, 440 V AC, 460 V AC, 480 V AC, 500 V AC, 520 V AC, 540 V AC VDE = B, UL = class 105 +40°C 1
Block STU 63/24 Control/Safety Transformer 63 VA 1x24VAC Low Inrush
Block STU 63/24 Control/Safety Transformer 63 VA 1x24VAC Low Inrush
Extended range
Order code: 01-6437
MPN: STU 63/24

18 available to back orderBack-order availability date - 19/12/2025
1+ £49.39
Price per unit Ex VAT 		(L x W x H) 70 x 84 x 95 mm 84% 95mm 70mm L-piece 1 1 x 24 V AC 24V AC 63VA VDE 0570 Part 2-4, DIN EN 61558-2-2, EN 61558-2-2, IEC 61558-2-4, UL 5085-1/-2, CSA 22.2 No.66 84mm Control transformer Screw terminal open Base plate 50 - 60Hz 1 x 210 V AC, 230 V AC, 250 V AC, 380 V AC, 400 V AC, 420 V AC, 440 V AC, 460 V AC, 480 V AC, 500 V AC, 520 V AC, 540 V AC VDE = B, UL = class 105 +40°C 1
Block STU 630/2x115 Transformer Low Inrush Safety Isolation 630 VA
Block STU 630/2x115 Transformer Low Inrush Safety Isolation 630 VA
Extended range
Order code: 01-6438
MPN: STU 630/2x115

Available to back orderBack order, lead time 11 days
1+ £136.05
Price per unit Ex VAT 		(L x W x H) 112 x 150 x 149 mm 92% 149mm 112mm 2 2 x 115 V AC, 230 V AC 630VA VDE 0570 PART 2-4, DIN EN 61558-2-2, EN 61558-2-2, IEC 61558-2-4, UL 5085-1/-2, CSA 22.2 No. 66 150mm Control transformer Screw terminal open Base plate 50 - 60Hz 1 x 210 V AC, 230 V AC, 250 V AC, 380 V AC, 400 V AC, 420 V AC, 440 V AC, 460 V AC, 480 V AC, 500 V AC, 520 V AC, 540 V AC VDE = B, UL = class 105 +40°C 1


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