Block 25kVA Open Frame Autotransformer, 440 V ac, 460 V ac Primary, 400 V ac Secondary, 3 UI 132/72 Core
- RS Stock No.:
- 738-7916
- Mfr. Part No.:
- AT3 25-44/46-4
- Brand:
- Block
Image representative of range
Subtotal (1 unit)*
£671.38
(exc. VAT)
£805.66
(inc. VAT)
FREE delivery for orders over £50.00
Temporarily out of stock
- Shipping from 12 December 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £671.38 |
*price indicative
- RS Stock No.:
- 738-7916
- Mfr. Part No.:
- AT3 25-44/46-4
- 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 | 440 V ac, 460 V ac | |
| Secondary Voltage Rating | 400 V ac | |
| Power Rating | 25kVA | |
| Construction | Open Frame | |
| Mounting Type | Chassis Mount, Floor Standing, Wall Mount | |
| Core Type | 3 UI 132/72 | |
| Termination Type | Screw | |
| Length | 315mm | |
| Width | 185mm | |
| Dimensions | 315 x 185 x 255mm | |
| Depth | 255mm | |
| Minimum Operating Frequency | 50Hz | |
| Maximum Operating Frequency | 60Hz | |
| Maximum Temperature | +40°C | |
Select all | ||
|---|---|---|
Brand Block | ||
Primary Voltage Rating 440 V ac, 460 V ac | ||
Secondary Voltage Rating 400 V ac | ||
Power Rating 25kVA | ||
Construction Open Frame | ||
Mounting Type Chassis Mount, Floor Standing, Wall Mount | ||
Core Type 3 UI 132/72 | ||
Termination Type Screw | ||
Length 315mm | ||
Width 185mm | ||
Dimensions 315 x 185 x 255mm | ||
Depth 255mm | ||
Minimum Operating Frequency 50Hz | ||
Maximum Operating Frequency 60Hz | ||
Maximum Temperature +40°C | ||
- COO (Country of Origin):
- DE
AT3 Series Autotransformers
Range of high efficiency low heat loss 3 phase auto transformers
Common input and output windings
Easy installation-mounting holes provided
Screw terminal connections
Reverse operation posible
Transformers tested to EN 61558-2-13
BLOCKIMPEX vacuum impregnation
Easy installation-mounting holes provided
Screw terminal connections
Reverse operation posible
Transformers tested to EN 61558-2-13
BLOCKIMPEX vacuum impregnation
Approvals
UL 5085-1/2 CSA 22.2
Related links
- Block 10kVA Open Frame Autotransformer 460 V ac Primary 3 UI 114/40 Core
- Block 15kVA Open Frame Autotransformer 460 V ac Primary 3 UI 114/64 Core
- Block 2kVA Open Frame Autotransformer 460 V ac Primary 3 UI 75/26,5 Core
- Block 15kVA Open Frame Autotransformer 500 V ac Primary 3 UI 132/72 Core
- Block 10kVA Open Frame Autotransformer 600 V ac Primary 3 UI 132/72 Core
- Block 25kVA Open Frame Autotransformer 230 V ac Primary 3 UI 210/88 Core
- Block 25kVA Open Frame Autotransformer 208 V ac Primary 3 UI 210/88 Core
- Block 25kVA Open Frame Autotransformer 415 V ac Primary 3 UI 114/40 Core