Block 25kVA Open Frame Autotransformer, 220 V ac, 230 V ac Primary, 400 V ac Secondary, 3 UI 210/88 Core

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Subtotal (1 unit)*

£1,988.70

(exc. VAT)

£2,386.44

(inc. VAT)

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  • Shipping from 12 December 2025
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Units
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1 +£1,988.70

*price indicative

RS Stock No.:
738-7900
Mfr. Part No.:
AT3 25-22/23-4
Brand:
Block
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Brand

Block

Primary Voltage Rating

220 V ac, 230 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 210/88

Termination Type

Screw

Length

480mm

Dimensions

480 x 220 x 440mm

Width

220mm

Depth

440mm

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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