4
Fig.
Supply
C.
TELE_BZCT-1-A
2509
XXXXX
Type: BZCT035, 050, 070, 120, 160 210
Circular Toroids (Zero Current Transformers)
• INSTALLATION
• BEFORE INSTALLATION, ISOLATE THE SUPPLY THE CABLES THAT ARE PASSED
THROUGH THE TOROID.T.
ELR
Aux.1.T.TELE Haase Steuergeräte Ges.
E
L1
L2
L3
N
E
Supply
ELR
Aux.
C.m.):
BZCT035 65A (25mm2
) BZCT120 250A (240mm2
)
BZCT050 85A (50mm2
) BZCT160 320A (400mm2
)
BZCT070 160A (95mm2
) BZCT210 400A (500mm2
)
Max. Keep the cable and toroid away from intense magnetic
Fields from nearby equipment.
2.
ELR
Aux.5mm2
stranded
Approvals: UKCA Compliant.
1.) Between toroid and ELR
Ambient temperature: -20 +60°C
Relative humidity: +95%
Housing: Grey ABS
Mounting option: Surface mount only using fixing slots provided (BZCT160 and
210 require separate mounting feet which are included)
Terminal conductor size: 2.3A 210mm ∅
^applies ELR01PN.5s, 100kA for 0. 5
∅1 ∅2
Fig. 6). For all other ELRs, this would 0. 3.05s
Minimum ELR trip
setting (I∆n) based on
toroid size:
0.
Supply
C.T.03A 70mm ∅
0.
C.b.
5.T.T. cross-section/phase cable size shown brackets and assumes copper cables
Max., 5kA for 1.
4. Place the toroid straight section cable, not near a
Bend (see Fig.1A 120 and 160mm ∅
0.
Fig.e.
35mm ∅
∅
∅
∅
50mm ∅
∅
∅
∅
70mm ∅
∅
∅
∅
120mm ∅
∅
∅
∅
160mm ∅
∅
∅
∅
210mm ∅
∅
∅
∅
BZCT035
BZCT050
BZCT070
BZCT120
BZCT160
BZCT210
532020
532021
532022
532023
532024
532025
Rated system voltage: 720V AC
Insulation level: 3kV AC
Current ratio: 1/1000
Rated operational
current (I.com
The Information provided this literature believed accurate (subject change without prior notice); however, use such information shall entirely the user’s own risk.T.at www.006A^ and 50mm ∅
0.T. Vorarlberger Allee 38, AT-1230 Wien AUSTRIA
support@tele-haase. 3
1 3
Fig.
C.T.
Supply
C.T.
6.
• Installation the toroid, along with the Earth Leakage Relay must carried out in
accordance with the latest wiring practices and regulations. C. BZCT035/CP)
• CONNECTION DIAGRAM
Typical connection examples are shown below. rule, select toroid that has inside diameter which is
twice that greater than the outsider diameter the cable(s)
to passed through (see Fig.
For use conjunction with TELE “Type Earth Leakage Relays
Designed detect leakage current and transmit proportional signal
to Earth Leakage Relay
Surface mounting with fixing slots (BZCT160 and 210 supplied with
separate mounting feet)
BZCT300 designed for direct attachment cables
Slim design
DIN Rail fixing clip available for 35mm ∅
∅
∅
∅ toroid (Part no.
C.H.
• TECHNICAL SPECIFICATION
Size availability Part No.
C.03A.5mm2
solid
≤ 1.
3. Article No.T.
Conforms to: IEC61869 parts and 2
cUL (when used conjunction with ELR01PN ELR30PN)
Installation work must carried
out qualified personnel.
Max.T. NOT pass individual conductors through separate
toroid’s shown Fig.T. C. 1
E
1 2
3
N
Fig. 4). Always ensure the Earth conductor DOES NOT pass through
the toroid. permissible current: 1kA cont. 2
1 2
N
3
E
✘
DIN Rail clip fitted BZCT035
Fig. 6
A.
C. Distance: 50m (max. 5). Ensure the cable central the toroid (see Fig.
E E
3-Phase, 4-wire 3-Phase, 3-wire 1-Phase, 2-wire
• INSTALLATION GUIDANCE
Correct installation the Earth Leakage Relay and toroid should ensure trouble free operation, particular, this document followed. this unavoidable, the Earth must routed
back through the toroid again and around, shown Fig.tele-online.
C
