Block ST Transformer Range

Block Brand: Block

The BLOCK ST series offers a range of high-performance transformers designed for industrial and commercial applications. These transformers are engineered to provide reliable and efficient voltage conversion, ensuring optimal performance of electrical systems.

The ST series includes various models tailored to different power requirements, featuring robust construction and high-quality materials to withstand harsh operating conditions. With advanced thermal management and protection features, BLOCK ST transformers guarantee safe and stable operation, minimizing downtime and maintenance costs.

Easy to install and integrate, these transformers are ideal for use in automation, control systems, and other demanding environments where consistent power delivery is crucial.

Choose BLOCK ST products for their proven reliability, durability, and efficiency in powering your critical applications.

Description Image Product Buy Pricing (Ex VAT) Height Length Power Primary Voltage Secondary Voltage Width
Block ST 100/23/23, 100VA Transformer, 230V to 230V
Block ST 100/23/23, 100VA Transformer, 230V to 230V
Extended range
Order code: 51-5254
MPN: ST 100/23/23

3 available to back orderBack-order availability date - 19/12/2025
1+ £42.33
Price per unit Ex VAT 		95mm 84mm 100VA 230V 230V 76mm
Block ST 1000/23/23, 1000VA Transformer, 230V to 230V
Block ST 1000/23/23, 1000VA Transformer, 230V to 230V
Extended range
Order code: 51-5258
MPN: ST 1000/23/23

2 available to back orderBack-order availability date - 19/12/2025
1+ £188.96
Price per unit Ex VAT 		148mm 150mm 1000VA 230V 230V 154mm
Block ST 130/23/24, 130VA Transformer, 230V to 24V
Block ST 130/23/24, 130VA Transformer, 230V to 24V
Extended range
Order code: 51-5261
MPN: ST 130/23/24

3 available to back orderBack-order availability date - 19/12/2025
1+ £53.27
Price per unit Ex VAT 		105mm 96mm 130VA 230V 24V 78mm
Block ST 20/23/12, 20VA Transformer, 230V to 12V
Block ST 20/23/12, 20VA Transformer, 230V to 12V
Extended range
Order code: 51-5270
MPN: ST 20/23/12

4 available to back orderBack-order availability date - 19/12/2025
1+ £33.47
Price per unit Ex VAT 		81mm 66mm 20VA 230V 12V 56mm
Block ST 20/23/23, 20VA Transformer, 230V to 230V
Block ST 20/23/23, 20VA Transformer, 230V to 230V
Extended range
Order code: 51-5271
MPN: ST 20/23/23

1 available to back orderBack-order availability date - 19/12/2025
1+ £31.12
Price per unit Ex VAT 		81mm 66mm 20VA 230V 230V 56mm
Block ST 250/23/23, 250VA Transformer, 230V to 230V
Block ST 250/23/23, 250VA Transformer, 230V to 230V
Extended range
Order code: 51-5275
MPN: ST 250/23/23

2 available to back orderBack-order availability date - 19/12/2025
1+ £72.97
Price per unit Ex VAT 		105mm 96mm 250VA 230V 230V 103mm
Block ST 250/23/24, 250VA Transformer, 230V to 24V
Block ST 250/23/24, 250VA Transformer, 230V to 24V
Extended range
Order code: 51-5276
MPN: ST 250/23/24

4 available to back orderBack-order availability date - 19/12/2025
1+ £72.73
Price per unit Ex VAT 		105mm 96mm 250VA 230V 24V 103mm
Block ST 320/23/23, 320VA Transformer, 230V to 230V
Block ST 320/23/23, 320VA Transformer, 230V to 230V
Extended range
Order code: 51-5282
MPN: ST 320/23/23

7 available to back orderBack-order availability date - 19/12/2025
1+ £86.79
Price per unit Ex VAT 		114mm 105mm 320VA 230V 230V 103mm
Block ST 500/23/23, 500VA Transformer, 230V to 230V
Block ST 500/23/23, 500VA Transformer, 230V to 230V
Extended range
Order code: 51-5288
MPN: ST 500/23/23

5 available to back orderBack-order availability date - 19/12/2025
1+ £123.07
Price per unit Ex VAT 		123mm 120mm 500VA 230V 230V 122mm
Block ST 63/23/23, 63VA Transformer, 230V to 230V
Block ST 63/23/23, 63VA Transformer, 230V to 230V
Extended range
Order code: 51-5293
MPN: ST 63/23/23

6 available to back orderBack-order availability date - 19/12/2025
1+ £38.27
Price per unit Ex VAT 		89mm 78mm 63VA 230V 230V 60mm
Block ST 63/23/24, 63VA Transformer, 230V to 24V
Block ST 63/23/24, 63VA Transformer, 230V to 24V
Extended range
Order code: 51-5294
MPN: ST 63/23/24

5 available to back orderBack-order availability date - 19/12/2025
1+ £40.29
Price per unit Ex VAT 		89mm 78mm 63VA 230V 24V 60mm
Block ST 800/23/23, 800VA Transformer, 230V to 230V
Block ST 800/23/23, 800VA Transformer, 230V to 230V
Extended range
Order code: 51-5300
MPN: ST 800/23/23

2 available to back orderBack-order availability date - 19/12/2025
1+ £169.28
Price per unit Ex VAT 		148mm 150mm 800VA 230V 230V 128mm
Block ST 160/4/24, 160VA Transformer, 400V to 24V
Block ST 160/4/24, 160VA Transformer, 400V to 24V
Extended range
Order code: 51-5267
MPN: ST 160/4/24

2 available to back orderBack-order availability date - 19/12/2025
1+ £59.32
Price per unit Ex VAT 		105mm 96mm 160VA 400V 24V 88mm
Block ST 20/4/23, 20VA Transformer, 400V to 230V
Block ST 20/4/23, 20VA Transformer, 400V to 230V
Extended range
Order code: 51-5273
MPN: ST 20/4/23

22 available to back orderBack-order availability date - 19/12/2025
1+ £33.91
Price per unit Ex VAT 		81mm 66mm 20VA 400V 230V 56mm
Block ST 250/4/23, 250VA Transformer, 400V to 230V
Block ST 250/4/23, 250VA Transformer, 400V to 230V
Extended range
Order code: 51-5278
MPN: ST 250/4/23

1 in stock, despatched same dayBack-order availability date - 19/12/2025
1+ £71.89
Price per unit Ex VAT 		105mm 96mm 250VA 400V 230V 103mm
Block ST 2500/4/23, 2500VA Transformer, 400V to 230V
Block ST 2500/4/23, 2500VA Transformer, 400V to 230V
Extended range
Order code: 51-5280
MPN: ST 2500/4/23

5 available to back orderBack-order availability date - 19/12/2025
1+ £426.59
Price per unit Ex VAT 		182mm 192mm 2500VA 400V 230V 184mm
Block ST 400/4/24, 400VA Transformer, 400V to 24V
Block ST 400/4/24, 400VA Transformer, 400V to 24V
Extended range
Order code: 51-5286
MPN: ST 400/4/24

5 available to back orderBack-order availability date - 19/12/2025
1+ £101.07
Price per unit Ex VAT 		123mm 120mm 400VA 400V 24V 102mm
Block ST 250/44/23, 250VA Transformer, 440V to 230V
Block ST 250/44/23, 250VA Transformer, 440V to 230V
Extended range
Order code: 51-5279
MPN: ST 250/44/23

1 available to back orderBack-order availability date - 19/12/2025
1+ £72.94
Price per unit Ex VAT 		105mm 96mm 250VA 440V 230V 103mm


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