Block 20kVA Chassis Mounting Transformer, 3 x 400V ac
- RS Stock No.:
- 738-7950
- Mfr. Part No.:
- TT3 20-4-4
- Brand:
- Block
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Subtotal (1 unit)*
£4,843.71
(exc. VAT)
£5,812.45
(inc. VAT)
FREE delivery for orders over £50.00
Temporarily out of stock
- Shipping from 24 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £4,843.71 |
*price indicative
- RS Stock No.:
- 738-7950
- Mfr. Part No.:
- TT3 20-4-4
- Brand:
- Block
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Block | |
| Primary Voltage Rating | 3 x 400V ac | |
| Secondary Voltage Rating | 3 x 400V ac | |
| Power Rating | 20kVA | |
| Length | 550mm | |
| Width | 550mm | |
| Depth | 297mm | |
| Dimensions | 550 x 510 x 297mm | |
| Weight | 180kg | |
| Minimum Operating Frequency | 50Hz | |
| Maximum Operating Frequency | 60Hz | |
| Maximum Temperature | +50°C | |
Select all | ||
|---|---|---|
Brand Block | ||
Primary Voltage Rating 3 x 400V ac | ||
Secondary Voltage Rating 3 x 400V ac | ||
Power Rating 20kVA | ||
Length 550mm | ||
Width 550mm | ||
Depth 297mm | ||
Dimensions 550 x 510 x 297mm | ||
Weight 180kg | ||
Minimum Operating Frequency 50Hz | ||
Maximum Operating Frequency 60Hz | ||
Maximum Temperature +50°C | ||
- COO (Country of Origin):
- DE
TT3 Series Transformers
Brought to you by Block, the TT3 series of 3 phase transformers are highly efficient and feature low heat loss. Fitted with easy-to-install mounting holes, the TT3 series transformers also feature screw terminal connections and integrated lifting eyes.
Features and Benefits:
• Safe electrical isolation 400V 3 phase input
• + and - 5% tappings on the secondary windings
• BLOCKIMPEX vacuum impregnation
• + and - 5% tappings on the secondary windings
• BLOCKIMPEX vacuum impregnation
Standards
IEC 61558-2-4 DIN EN 61558-2-4 VDE 0570 part 2-4
Approvals
UL 1561; CSA 22.2
Laminated