BZCT 120 BROYCE CONTROL, BZCT 120 Datasheet

BZCT 120

Manufacturer Part Number

BZCT 120

Description

TOROID, 120MM (CORE BALANCE)

Manufacturer

BROYCE CONTROL

Datasheet

1.BZCT_070.pdf (1 pages)

Specifications of BZCT 120

Current Max

1kA

Operating Temperature Max

60Â°C

Operating Temperature Min

-20Â°C

Supply Voltage Ac Max

720V

Mounting Type

Surface Mounting

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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•

• FUNCTION DIAGRAM

Typical connection examples are shown below.

• INSTALLATION DO’s and DONT’s

•

• DIMENSIONS

Type: BZCT035, 070, 120 & 210

Circular Toroids

The information provided in this literature is believed to be accurate (subject to change without prior notice); however, use of such information shall be entirely at the user’s own risk.

BEFORE INSTALLATION, ISOLATE THE SUPPLY TO THE CABLES THAT ARE TO BE

PASSED THROUGH THE TOROID.

Installation of the toroid, along with the Earth Leakage Relay must be carried out in

accordance with the latest wiring practices and regulations.

Correct installation of the Earth Leakage Relay and toroid should ensure trouble free operation, in particular, if this document is followed.

Telephone: +44 (0) 1902 773746 Facsimile: +44 (0) 1902 420639 Email: sales@broycecontrol.com Web: http://www.broycecontrol.com

INSTALLATION NOTE

For use in conjunction with Broyce “Type A” Earth Leakage Relays

Designed to detect leakage current and transmit a proportional signal to an Earth

Leakage Relay

Surface mounting with 4 fixing slots (BZCT210 supplied with separate mounting feet)

Slim design

Always ensure the Earth conductor DOES NOT pass through the

As a rule, select a toroid that has an inside diameter which is twice that

Ensure the cable is central in the toroid.

Place the toroid on a straight section of cable, not near a bend.

Keep the cable and toroid away from intense magnetic fields from

DO NOT pass individual conductors through separate toroids, as shown

toroid. If it is unavoidable, the Earth must be routed back through

the toroid again and around, as shown in Fig.2 below.

or greater than the outsider diameter of the cable(s) to be passed

through.

nearby equipment.

in Fig. 3.

3-Phase, 4-wire

BZCT035

C.T.

ELR

Supply

Aux.

Broyce Control Ltd., Pool Street, Wolverhampton, West Midlands WV2 4HN. England

3-Phase, 3-wire

C.T.

Installation work must be carried

BZCT070, 120 & 210mm

ELR

out by qualified personnel.

Supply

Aux.

1-Phase, 2-wire

Fig. 1

1 2

C.T.

ELR

Supply

Aux.

BZCT035

BZCT070

BZCT120

BZCT210

Dimensions in mm

• TECHNICAL SPECIFICATION

Size availability* and part

* internal diameter

Rated system voltage:

Insulation level:

Current ratio:

Maximum permissible

Minimum IΔn setting on

Distance between

Ambient temp:

Relative humidity:

Housing:

Mounting option:

Terminal conductor size: ≤ 2.5mm

Approvals:

Toroid

number:

current:

Earth Leakage Relay for

each type of toroid:

toroid and relay:

Type:

1 2

120

210

Fig.2

A∅

105

155

149

35mm ∅ (BZCT035)

70mm ∅ (BZCT070)

120mm ∅ (BZCT120)

210mm ∅ (BZCT210)

720VAC

3kVAC

1/1000

1kA continuous

5kA for 1.5Sec.

100kA for 0.05Sec.

0.03A - 35 and 70mm ∅

0.1A - 120mm ∅

0.3A - 210mm ∅

50 metres (max.)

-20 to +60°C

+95%

Grey ABS

Panel mount only using fixing slots provided (BZCT210

requires separate mounting feet as supplied)

≤ 1.5mm

CE Compliant.

Conforms to: IEC44-1, IEC185 & BS7676

117

170

304

solid

stranded

60*

*exc. mounting feet

Fig.3

145

BZCT-3-A

Weight

1300g

135g

265g

77g

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