BZCT035 HOYT ELECTRICAL INSTRUMENT, BZCT035 Datasheet

BZCT035

Manufacturer Part Number

BZCT035

Description

Current Transformer

Manufacturer

HOYT ELECTRICAL INSTRUMENT

Datasheet

1.BZCT035.pdf (2 pages)

Specifications of BZCT035

Current Ratio

1000

Mounting Type

Panel

Accessory Type

Toroid

For Use With

ELRM44F Series Relays

Lead Free Status / RoHS Status

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Download datasheet (246Kb)

Fault simulation (Test mode)

Troubleshooting

Note:

The operating function of this unit is classed as a Type A

alternating currents and residual pulsating direct currents, whether applied suddenly or slowly rising. Additionally, this unit is

protected against nuisance tripping

detect residual alternating currents.

This unit should be installed in conjunction with the latest wiring regulations and practices (IEE, etc)

Type: ELRM44F-0030, 0100 & 0300

Earth Leakage Relay (Fixed) - Type A

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.

FUNCTION DIAGRAM

BEFORE INSTALLATION, ISOLATE THE SUPPLY.

Connect the unit as shown in the diagram below.

Apply power, the green “supply on” LED will illuminate. The output relay will energise and the red “tripped” LED

illuminate if:

The relay will now remain in a latched condition.

The unit can be placed into a fault condition by pressing the “Test” button on the front of the unit (or by pressing the

remote “Test” button - if fitted). The output relay operates accordingly.

Press the “Reset” button on the front of the unit (or remotely - if fitted) to reset the unit. The output relay reverts back

to the “non-tripped” state.

The unit can also be reset by interrupting the power supply.

To satisfy regulations, it is recommended that the device be tested periodically to ensure correct operation.

If the unit fails to operate correctly check that all wiring and connections are good.

CONNECTION DIAGRAM

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

INSTALLATION

44mm (2.5 modules) wide DIN rail housing

Designed to monitor and detect true RMS earth fault currents in conjunction with a separate toroid

Microprocessor controlled with internal monitoring (self-checking)

Fixed Sensitivity (I n) - 30, 100 or 300mA*

Fixed Time Delay ( t) - 0 (instantaneous)

Separate “Test” and “Reset” push buttons

Connection facility for remote “Test” and “Reset” push buttons or N.O. contacts

Toroid open circuit detection forces unit to trip (Red LED flashes during this condition)

SPDT relay output 8A

LED indication of Supply and fault condition after unit has tripped

Standard

output

Trip level (I n)

Reset level

The Earth MUST NOT pass through

the C.T. For single phase applications,

only the live and neutral need to be

passed through the C.T.

*Cabling:

For distances >1m, use twisted pair

cable between the unit and C.T.

a, the fault current level exceeds the fixed trip level (I n), or

b, there is a failure of the connection between the relay and the toroid (Note the red “tripped” LED

will flash during this condition)

. This unit will also satisfy the requirements for Type AC devices which only need to

C.T.

50m* max.

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

current

"Reset"

pressed

fault

button

9 10 11 12 13

for which tripping is ensured for residual sinusoidal

standard

output

pressed

button

"Test"

Installation work must be carried

interrupted

*Dual voltage only available

115V* AC Only

The relay is shown

in the de-energised

state (i.e. where

power is not present

on the supply terminals)

supply

out by qualified personnel.

For 115V, connect across

12 - 125V DC

For all other voltages,

230V* AC

as 115V/230V AC.

terminals 5 and 7.

terminals 6 and 7

400V AC

connect across

24V AC

failure of connection

to toroid

Supply voltage Un (5, 6, 7):

(see connection diagram)

Frequency range:

Isolation:

Rated impulse withstand voltage: 800V (24V AC supplies ), 2.5kV (115V AC supplies)

(1.2 / 50 S) IEC 60664

Power consumption (max.):

Monitored leakage current:

Sensitivity I n (see Accessories): 30, 100 or 300 mA (*to be specified when ordering)

Trip level limits:

Reset Value:

Time delay t:

Reset time:

LED indication:

Memory:

Ambient temp:

Relative humidity:

Output :

Output rating:

Electrical life:

Dielectric voltage:

Rated impulse withstand voltage: 4kV (1.2 / 50 S) IEC 60664

Remote “Test” and “Reset”

(1, 2, 3)

Minimum trigger time:

Housing:

Weight:

Mounting option:

Terminal conductor size:

Approvals:

( ) Numbers in brackets shown above refer to terminal numbers on the relay housing.

1. For other supply voltages, alternative trip levels or time delays, please consult the sales office.

Please state full part number and voltage when ordering. The suffix, which should follow ELRM44F, is

0030 (30mA), 0100 (100mA) or 0300 (300mA).

Power supply present:

Tripped:

MOUNTING DETAILS

TECHNICAL SPECIFICATION

Options

Ordering*

Accessories – Toroids

Example: ELRM44F-0030 24V AC

44mm

Toroid Type:

BZCT035

BZCT070

BZCT120

BZCT210

12 - 125V DC (85 - 110% of U)

24, 115/230, 400V AC (85 - 115% of Un)

All AC supplies are galvanically isolated between the supply and the

toroid connection.

50/60/400Hz (AC supplies)

Over voltage cat. III

4kV (230V, 400V AC supplies)

6VA (AC supplies) 5W (DC supplies)

0 to 30A (15 - 400Hz) (through external toroid with 1000:1 ratio

and connected to terminals 8 and 9)

80 - 90% of I n

instantaneous (Actual delay is <25mS when fault current @ 5 x I n)

Green

Red (see “INSTALLATION” to the left)

storage of the leakage fault and reset with the “Reset” push button

-20 to +55 C

-5 to +40 C (in accordance with IEC 60755)

+95%

SPDT relay (12, 13, 14)

AC1

AC15

DC1

2kV AC (rms) IEC 60947-1

Requires N.O. contacts. (i.e. push buttons)

>80mS

Grey flame retardant Lexan UL94 VO

On to 35mm symmetric DIN rail to BS5584:1978

(EN50 002, DIN 46277-3)

Conforms to:

IEC60755, 60947, 62020, 61543.

IEC 61000-4-2, -3, -4, -5 , -6, -12 and -16. CISPR 22

CE and

to DIN 43880

85% of tripped level

2S (from supply interruption)

150,000 ops at rated load

190g (AC power supplies)

2.5mm

W. 44mm

Dims:

Internal diameter:

stranded,

Compliant.

120mm

210mm

35mm

70mm

30mm

49.5mm

63.5mm

250V 8A (2000VA)

250V 2.5A

25V 8A (200W).

4mm

solid

110g (DC power supply)

I n (min.) A

0.03

Terminal Protection to IP20

0.1

0.3

Please state Supply voltage

when ordering.

ELRM44F-2-A

Related parts for BZCT035

BZCT035 Summary of contents

Page 1

... Ordering* Please state full part number and voltage when ordering. The suffix, which should follow ELRM44F, is 0030 (30mA), 0100 (100mA) or 0300 (300mA). Example: ELRM44F-0030 24V AC Accessories – Toroids Toroid Type: Internal diameter (min.) A BZCT035 35mm BZCT070 70mm BZCT120 120mm BZCT210 210mm ...

Page 2

... Numbers in brackets shown above refer to terminal numbers on the relay housing. Options 1. For other supply voltages, alternative trip levels or time delays, please consult the sales office. Accessories – Toroids Toroid Type: Internal diameter (min.) A BZCT035 35mm BZCT070 70mm BZCT120 120mm BZCT210 ...

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