Block 25kVA Open Frame Autotransformer, 440 V ac, 460 V ac Primary, 400 V ac Secondary, 3 UI 132/72 Core

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Subtotal (1 unit)*

£671.38

(exc. VAT)

£805.66

(inc. VAT)

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  • 999,999,999 unit(s) shipping from 11 December 2025
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Per unit
1 +£671.38

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RS Stock No.:
738-7916
Mfr. Part No.:
AT3 25-44/46-4
Brand:
Block
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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

Approvals

UL 5085-1/2 CSA 22.2

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