4
HIGH PERFORMANCE CBEs
AS168X Series
• Excellent short circuit and
energy limiting performance
• AC and DC versions
The AS168X is a thermal magnetic high performance CBE to IEC 934
and a «supplementary protector» to UL 1077. It is capable of drasti-
cally limiting the «let-through energy» in case of short circuit interrup-
tions. The series is available in units from one to four poles for use in
AC and DC circuits. Multi-pole devices are connected internally and at
the handle for simultaneous operation. This applies also to combina-
tions with the switched neutral pole. Well designed screw type term-
inals at line and load side are provided for safe and easy connection
to line and load. They accept #16 to 4 AWG / 1,5 to 25 mm
2
.
Accessories
• Auxiliary contact module
Each auxiliary contact module contains one contact,
either normally open or normally closed.
• Signal contact module
Signal contact modules are linked internally with the protected
poles but not linked at the handles.Contacts are actuated by a fault
condition at the protected poles, not by the manual operation of
the CBE.
• Relay trip module
The relay trip module can be used for remote tripping of the
adjacent poles by applying a voltage to the module’s terminal.
• Switched neutral pole (factory assembled)
This module permits an automatic opening of the neutral line when
the protected poles have been tripped.
Features
•
•
•
•
•
•
•
Excellent short circuit performance (up to 10 kA)
High limits of discrimination (due to energy limitation)
Wide choice of characteristics (Adaptability)
Availability of AC and DC in the same frame size
Compact, «finger safe» design
Ease of installation (on DIN rail)
Worldwide approvals
Schurter, Inc. • Phone 707-778-6311 • Fax 707- 778-6401 • E-mail info@schurterinc.com • Website http://www.schurterinc.com
273
4
HIGH PERFORMANCE CBEs AS168X
Effect of ambient
temperature
The unit is calibrated for an ambient tem-
perature of +23°C. To determine the rated
current for a lower or higher ambient
temperature, use a correction factor from
the table below:
Ambient
temperature [°C]
–20
–5
0
+10
+23
+30
+40
+50
+60
Correction factor
0,80
0,87
0,90
0,95
1,00
1,05
1,10
1,20
1,30
Example
Rated current at +23°C
Ambient temperature
Correction factor
Chosen rated current at
+50°C ambient temperature
10 A x 1,2 = 12 A
10 A
+50°C
1,2
Tripping characteristic F
Tripping characteristic G
Tripping characteristic H
1hr
1000s
1hr
1000s
1hr
1000s
100s
100s
100s
10s
10s
10s
1s
1s
1s
0,1s
0,1s
0,1s
10ms
10ms
10ms
Tripping time
Tripping time
0,1ms
1
10
100
1000 x In
Multiple of rated current (x In)
0,1ms
1
10
100
1000 x In
Multiple of rated current (x In)
Tripping time
1ms
1ms
1ms
0,1ms
1
10
100
1000 x In
Multiple of rated current (x In)
Schurter, Inc. • Phone 707-778-6311 • Fax 707- 778-6401 • E-mail info@schurterinc.com • Website http://www.schurterinc.com
279
PG 3
4
HIGH PERFORMANCE CBEs AS168X
Tripping characteristic DG
1hr
1000s
1hr
1000s
Tripping characteristic DF
1hr
1000s
Tripping characteristic DH
100s
100s
100s
10s
10s
10s
1s
1s
1s
0,1s
0,1s
0,1s
10ms
10ms
10ms
Tripping time
Tripping time
0,1ms
1
10
100
1000 x In
Multiple of rated current (x In)
0,1ms
1
10
100
1000 x In
Multiple of rated current (x In)
Tripping time
1ms
1ms
1ms
0,1ms
1
10
100
1000 x In
Multiple of rated current (x In)
Technical data
Pole:
Rated voltage Ue
AC versions F; G; H
DC versions DF; DG; DH
Note: The connection polarity must be strictly
observed. An application with a DC Type AS168X
in an AC network is not admissible.
AC 480/277 V; DC 65 V
DC 180 V 1 pole
DC 360 V 2 – 4 pole
Rated current In
Short circuit capacity
Endurance
See approvals, page 282
Max. Icn
Number of operating cycles at In
• Thermal magnetic
• Positively trip-free
Manual ON/OFF
AC/DC 0,5 – 50 A
10,000 A
6000
Type of tripping
Type of actuation
Permissible wire cross section
Switched neutral:
Rated voltage Ue
Rated current In
Function
S-type
1,5 – 25 mm
2
AC 277 V
AC/DC 65 A
The switched neutral pole contact
closes before and opens after the
protected poles. Automatic activation is
effected by the protected poles, manual
actuation by the linked handles.
280
Schurter, Inc. • Phone 707-778-6311 • Fax 707-778-6401 • E-mail info@schurterinc.com • Website http://www.schurterinc.com
4
HIGH PERFORMANCE CBEs AS168X
Technical data (continued)
Add-on modules:
Rated voltage Ue
AC 277 V
Rated current In
6A
Auxiliary contact H1 & H2 and
Signal contact S1 & S2
Functional auxiliary contact module
Type H1 (assumes the same contact position)
Type H2 (assumes the opposite position)
Actuation of the contact is determined
by the condition of the handle position
of the adjacent poles.
Functional signal contact
Type S1 (assumes the same contact position)
Type S2 (assumes the opposite position)
The signal contact operates due to a
thermal magnetic tripping and must
be reset by hand.
Relay trip module
Type
A1
A2
A3
A4
A5
Voltage range AC/DC
5 – 12 V
10 – 24 V
20 – 48 V
40 – 110 V
90 – 240 V
Impedance at 50/60 Hz
1.1
Ω
4.7
Ω
16
Ω
63
Ω
395
Ω
The module allows remote tripping by
applying a voltage between the
terminals. Operating time 8 – 16 ms.
Function of relay trip module
General data:
Dielectric strength
AC 2000 V
Vibration resistance
0,75 mm amplitude, 10 – 57 Hz
Shock resistance
Protection against electric shock
Waveform 11 ms
Finger safe per IEC 529
25 g
IP20
Permissible ambient temperature
-20°C to +60°C
Weight
1 pole
Switched neutral
Auxiliary contact
Signal contact
Relay trip module
ca. 130
ca. 130
ca. 100
ca. 100
ca. 120
g
g
g
g
g
Schurter, Inc. • Phone 707-778-6311 • Fax 707- 778-6401 • E-mail info@schurterinc.com • Website http://www.schurterinc.com
281
PG 3
4
HIGH PERFORMANCE CBEs AS168X
Approvals
Number of
protected poles
Rated current range
AC
UL
1077
1
2
3
4
0,5 – 50 A
0,5 – 50 A
0,5 – 50 A
0,5 – 50 A
Rated voltage
AC
277 V
480 V
480 V
480 / 277 V
Rated current range
DC
0,5 – 40 A
0,5 – 40 A
0,5 – 40 A
Rated voltage
DC
180 V
360 V
360 V
CSA 22.2 / 235
1
2
3
4
0,5 – 50 A
0,5 – 50 A
0,5 – 50 A
0,5 – 50 A
277 V
480 V
480 V
480 / 277 V
0,5 – 40 A
0,5 – 40 A
0,5 – 40 A
180 V
360 V
360 V
VDE 0642
1
2
3
4
0,5 – 40 A
0,5 – 40 A
0,5 – 40 A
0,5 – 40 A
420/240 V
420 V
420 V
420/240 V
0,5 – 40 A
0,5 – 40 A
0,5 – 40 A
120 V
240 V
360 V
282
Schurter, Inc. • Phone 707-778-6311 •
• Fax 707-778-6401 •
E-mail info@schurterinc.com •
•
Website http://www.schurterinc.com
Phone 707-778-6311
Fax 707-778-6401 •
E-mail info@schurterinc.com Website http://www.schurterinc.com
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