MPN

Block 1 kVA Chassis Mount Transformer, 3 x 400 V ac, EN 61558-2-4, UL 5085-1/-2, CSA 22.2 No.66, VDE 0570 Teil 2-4, DIN

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

Block 1 kVA Chassis Mount Transformer, 3 x 400 V ac, EN 61558-2-4, UL 5085-1/-2, CSA 22.2 No.66, VDE 0570 Teil 2-4, DIN

Bulk discount available

View bulk pricing option

Subtotal (1 unit)*

€590.75

(exc. VAT)

€726.62

(inc. VAT)

In Stock

Plus 2 unit(s) shipping from 02 June 2026

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

Units	Per unit
1 - 4	€590.75
5 +	€531.67

*price indicative

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

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Block
	Product Type	Chassis Mount Transformer
	Primary Voltage	3 x 400 V ac
	Secondary Voltage	3 x 400 V ac
	Power	1kVA
	Maximum Operating Temperature	50°C
	Depth	125mm
	Length	267mm
	Minimum Operating Frequency	50Hz
	Weight	15kg
	Series	TT3
	Width	267mm
	Maximum Operating Frequency	60Hz
	Standards/Approvals	EN 61558-2-4, UL 5085-1/-2, CSA 22.2 No.66, VDE 0570 Teil 2-4, DIN EN 61558-2-4, IEC 61558-2-4

	Select all
	Brand Block
	Product Type Chassis Mount Transformer
	Primary Voltage 3 x 400 V ac
	Secondary Voltage 3 x 400 V ac
	Power 1kVA
	Maximum Operating Temperature 50°C
	Depth 125mm
	Length 267mm
	Minimum Operating Frequency 50Hz
	Weight 15kg
	Series TT3
	Width 267mm
	Maximum Operating Frequency 60Hz
	Standards/Approvals EN 61558-2-4, UL 5085-1/-2, CSA 22.2 No.66, VDE 0570 Teil 2-4, DIN EN 61558-2-4, IEC 61558-2-4

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

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