MPN

Block 1kVA Chassis Mounting Transformer, 3 x 400V ac

RS stock no.:: 738-7925
Mfr. Part No.:: TT3 1-4-4
Manufacturer:: Block

Block 1kVA Chassis Mounting Transformer, 3 x 400V ac

Bulk discount available

Subtotal (1 unit)*

R 13 936,32

(exc. VAT)

R 16 026,77

(inc. VAT)

FREE delivery for orders over R 1,500.00

Temporarily out of stock

1 unit(s) shipping from 05 February 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 - 4	R 13,936.32
5 +	R 13,587.91

*price indicative

RS stock no.:: 738-7925
Mfr. Part No.:: TT3 1-4-4
Manufacturer:: Block

Specification

Technical data sheets

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	1kVA
	Length	267mm
	Width	267mm
	Depth	125mm
	Dimensions	267 x 215 x 125mm
	Weight	15kg
	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 1kVA
	Length 267mm
	Width 267mm
	Depth 125mm
	Dimensions 267 x 215 x 125mm
	Weight 15kg
	Minimum Operating Frequency 50Hz
	Maximum Operating Frequency 60Hz
	Maximum Temperature +50°C

TT3 1-4-4 Data Sheet

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

Laminated

Approvals

UL 1561; CSA 22.2

Standards

IEC 61558-2-4 DIN EN 61558-2-4 VDE 0570 part 2-4