Control transformer BUST

Data Standards/Certifications Applications Downloads

General Data

Rated input voltage 230 ‑ 500 Vac
Rated output voltage 24 ‑ 230 Vac
Rated power 1000 ‑ 10000 VA
Insulation class B
Maximum ambient temperature 40 °C
Efficiency up to 96.8 %
Degree of protection IP 00

Advantages

High performance for the volume thanks to compact design
Primary side ±5 % tappings for voltage adjustment
Very good corrosion protection and low noise thanks to BLOCKIMPEX vacuum impregnation
Contact protected screw connection terminals complying with UVV BGV A3
Low height

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	BUST 1000/23/24	BUST 1000/4/23	BUST 1600/23/24	BUST 1600/4/23	BUST 1600/4/42	BUST 2000/23/23	BUST 2000/4/23	BUST 2500/4/23	BUST 3000/4/23	BUST 3000/44/23	BUST 3000/5/23	BUST 4000/23/23	BUST 4000/4/23	BUST 4000/44/23	BUST 5000/23/23	BUST 5000/4/23	BUST 6300/4/23	BUST 6300/44/23	BUST 6300/5/23	BUST 8000/4/23	BUST 10000/4/23
Input
Rated input voltage	230 Vac	400 Vac	230 Vac	400 Vac	400 Vac	230 Vac	400 Vac	400 Vac	400 Vac	440 Vac	500 Vac	230 Vac	400 Vac	440 Vac	230 Vac	400 Vac	400 Vac	440 Vac	500 Vac	400 Vac	400 Vac
Tappings Input	±5 %	±5 %	±5 %	±5 %	±5 %	±5 %	±5 %	±5 %	±5 %	±5 %	±5 %	±5 %	±5 %	±5 %	±5 %	±5 %	±5 %	±5 %	±5 %	±5 %	±5 %
Low‑inrush current	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times	typ. rated current 12 times
Rated frequency	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz	50 - 60 Hz
Output
Rated output voltage	24 Vac	2 x 115 Vac	24 Vac	2 x 115 Vac	42 Vac	2 x 115 Vac	2 x 115 Vac	2 x 115 Vac	2 x 115 Vac	2 x 115 Vac	2 x 115 Vac	2 x 115 Vac	2 x 115 Vac	2 x 115 Vac	2 x 115 Vac	2 x 115 Vac	2 x 115 Vac	2 x 115 Vac	2 x 115 Vac	2 x 115 Vac	2 x 115 Vac
Rated power VDE (DB cos phi=1)	1000 VA	1000 VA	1600 VA	1600 VA	1600 VA	2000 VA	2000 VA	2500 VA	3000 VA	3000 VA	3000 VA	4000 VA	4000 VA	4000 VA	5000 VA	5000 VA	6300 VA	6300 VA	6300 VA	8000 VA	10000 VA
Rated power VDE (KB cos phi=0.5)	2500 VA	2500 VA	4300 VA	4300 VA	4300 VA	5300 VA	5300 VA	6900 VA	8900 VA	8900 VA	8900 VA	11000 VA	11000 VA	11000 VA	15700 VA	15700 VA	16000 VA	16000 VA	16000 VA	26500 VA	27000 VA
Efficiency	92.6 %	92.5 %	93.5 %	93.2 %	93.3 %	93.7 %	93.9 %	94.8 %	95.3 %	95.4 %	95.3 %	95.4 %	95.4 %	95.4 %	95.8 %	95.7 %	96.2 %	96.4 %	96.3%	96.5 %	96.8 %
Standards
Classification	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer	Control transformer
Approvals
Approvals	cURus	cURus	cURus	cURus	cURus	cURus	cURus	cURus	cURus	cURus	cURus	cURus	cURus	cURus	cURus	cURus	cURus	cURus	cURus	cURus	cURus
Environment
Ambient temperature max.	40 °C	40 °C	40 °C	40 °C	40 °C	40 °C	40 °C	40 °C	40 °C	40 °C	40 °C	40 °C	40 °C	40 °C	40 °C	40 °C	40 °C	40 °C	40 °C	40 °C	40 °C
Cooling method	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling	by self-cooling
Safety and protection
Type	open type	open type	open type	open type	open type	open type	open type	open type	open type	open type	open type	open type	open type	open type	open type	open type	open type	open type	open type	open type	open type
Class of Insulation System	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130	VDE=B, UL=class 130
Protection index	IP 00	IP 00	IP 00	IP 00	IP 00	IP 00	IP 00	IP 00	IP 00	IP 00	IP 00	IP 00	IP 00	IP 00	IP 00	IP 00	IP 00	IP 00	IP 00	IP 00	IP 00
Safety class (prepared)	I	I	I	I	I	I	I	I	I	I	I	I	I	I	I	I	I	I	I	I	I
Short circuit strength	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof	non-short-circuit proof
PRI Fusing recommendation by circuit breaker with tripping characteristic type 20 x Irated related to set)
Setting range	4.00 ‑ 6.30 A	2.50 ‑ 4.00 A	6.30 ‑ 10.00 A	4.00 ‑ 6.30 A	4.00 ‑ 6.30 A	8.00 ‑ 12.00 A	4.00 ‑ 6.30 A	6.30 ‑ 10.00 A	6.30 ‑ 10.00 A	6.30 ‑ 10.00 A	6.30 ‑ 10.00 A	16.00 ‑ 20.00 A	8.00 ‑ 12.00 A	6.30 ‑ 10.00 A	20.00 ‑ 25.00 A	10.00 ‑ 16.00 A	16.00 ‑ 20.00 A	10.00 ‑ 16.00 A	10.00 ‑ 16.00 A	20.00 ‑ 25.00 A	20.00 ‑ 25.00 A
Setting value	4.70 A	2.70 A	7.40 A	4.30 A	4.30 A	9.30 A	5.30 A	6.50 A	7.80 A	7.10 A	6.30 A	18.10 A	10.40 A	9.00 A	22.00 A	12.90 A	16.20 A	14.80 A	13.00 A	21.00 A	25.00 A
Terminal and mounting
Terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals	Screw-type terminals
Fixing method	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets	Foot brackets
Fixing screws	M5	M5	M6	M6	M6	M6	M6	M6	M6	M6	M6	M8	M8	M8	M8	M8	M8	M8	M8	M8	M10
Measures and weights
Weight	10.00 kg	10.00 kg	16.00 kg	16.00 kg	16.00 kg	19.00 kg	19.00 kg	25.00 kg	28.00 kg	28.00 kg	28.00 kg	37.00 kg	37.00 kg	37.00 kg	41.00 kg	41.00 kg	58.00 kg	58.00 kg	58.00 kg	72.00 kg	86.00 kg
	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture	Dimension Picture
Order numbers
Order Number	BUST 1000/23/24	BUST 1000/4/23	BUST 1600/23/24	BUST 1600/4/23	BUST 1600/4/42	BUST 2000/23/23	BUST 2000/4/23	BUST 2500/4/23	BUST 3000/4/23	BUST 3000/44/23	BUST 3000/5/23	BUST 4000/23/23	BUST 4000/4/23	BUST 4000/44/23	BUST 5000/23/23	BUST 5000/4/23	BUST 6300/4/23	BUST 6300/44/23	BUST 6300/5/23	BUST 8000/4/23	BUST 10000/4/23

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show all versions

Request to BLOCK

PDF Data sheet

BUST 1000/23/24

BUST 1000/4/23

BUST 1600/23/24

BUST 1600/4/23

BUST 1600/4/42

BUST 2000/23/23

BUST 2000/4/23

BUST 2500/4/23

BUST 3000/4/23

BUST 3000/44/23

BUST 3000/5/23

BUST 4000/23/23

BUST 4000/4/23

BUST 4000/44/23

BUST 5000/23/23

BUST 5000/4/23

BUST 6300/4/23

BUST 6300/44/23

BUST 6300/5/23

BUST 8000/4/23

BUST 10000/4/23

Input

Rated input voltage

230 Vac

400 Vac

230 Vac

400 Vac

230 Vac

400 Vac

440 Vac

500 Vac

230 Vac

400 Vac

440 Vac

230 Vac

400 Vac

440 Vac

500 Vac

400 Vac

Tappings Input

±5 %

Low‑inrush current

typ. rated current 12 times

Rated frequency

50 - 60 Hz

Output

Rated output voltage

24 Vac

2 x 115 Vac

24 Vac

2 x 115 Vac

42 Vac

2 x 115 Vac

Rated power VDE (DB cos phi=1)

1000 VA

1600 VA

2000 VA

2500 VA

3000 VA

4000 VA

5000 VA

6300 VA

8000 VA

10000 VA

Rated power VDE (KB cos phi=0.5)

2500 VA

4300 VA

5300 VA

6900 VA

8900 VA

11000 VA

15700 VA

16000 VA

26500 VA

27000 VA

Efficiency

92.6 %

92.5 %

93.5 %

93.2 %

93.3 %

93.7 %

93.9 %

94.8 %

95.3 %

95.4 %

95.3 %

95.4 %

95.8 %

95.7 %

96.2 %

96.4 %

96.3%

96.5 %

96.8 %

Standards

Classification

Control transformer

Approvals

cURus

Environment

Ambient temperature max.

40 °C

Cooling method

by self-cooling

Safety and protection

Type

open type

Class of Insulation System

VDE=B, UL=class 130

Protection index

IP 00

Safety class (prepared)

Short circuit strength

non-short-circuit proof

PRI Fusing recommendation by circuit breaker with tripping characteristic type 20 x Irated related to set)

Setting range

4.00 ‑ 6.30 A

2.50 ‑ 4.00 A

6.30 ‑ 10.00 A

4.00 ‑ 6.30 A

8.00 ‑ 12.00 A

4.00 ‑ 6.30 A

6.30 ‑ 10.00 A

16.00 ‑ 20.00 A

8.00 ‑ 12.00 A

6.30 ‑ 10.00 A

20.00 ‑ 25.00 A

10.00 ‑ 16.00 A

16.00 ‑ 20.00 A

10.00 ‑ 16.00 A

20.00 ‑ 25.00 A

Setting value

4.70 A

2.70 A

7.40 A

4.30 A

9.30 A

5.30 A

6.50 A

7.80 A

7.10 A

6.30 A

18.10 A

10.40 A

9.00 A

22.00 A

12.90 A

16.20 A

14.80 A

13.00 A

21.00 A

25.00 A

Terminal and mounting

Terminals

Screw-type terminals

Fixing method

Foot brackets

Fixing screws

M10

Measures and weights

Weight

10.00 kg

16.00 kg

19.00 kg

25.00 kg

28.00 kg

37.00 kg

41.00 kg

58.00 kg

72.00 kg

86.00 kg

Dimension Picture

Order numbers

Order Number

BUST 1000/23/24

BUST 1000/4/23

BUST 1600/23/24

BUST 1600/4/23

BUST 1600/4/42

BUST 2000/23/23

BUST 2000/4/23

BUST 2500/4/23

BUST 3000/4/23

BUST 3000/44/23

BUST 3000/5/23

BUST 4000/23/23

BUST 4000/4/23

BUST 4000/44/23

BUST 5000/23/23

BUST 5000/4/23

BUST 6300/4/23

BUST 6300/44/23

BUST 6300/5/23

BUST 8000/4/23

BUST 10000/4/23

Control transformer BUST

System components, accessory, housing