The Siemens Circuit Breaker is high quality!
withdrawable circuit breaker with guide frame 3-pole, size i, IEC
In=1250A to 690V, AC50/60Hz Icu=66kA at 500V rear connection
horizontal Overcurrent release ETU 25 LSI protection adjustable 0.4-
1 in Motorized/manual operating mechanism with spring charging
motor AC 50/60 Hz 208-240 V or 220-250 V DC Activation AC 50/60
Hz 230 V, 220 V DC With 1st auxiliary release Shunt release "F", F1
50/60 Hz 230 V AC/220 V DC, 100% on-load factor without 2nd
auxiliary release 2NO+2NC
Model
product brand name SENTRON
product designation ACB
design of the product IEC 60947-2
design of the actuating element Pushbutton
type of the driving mechanism Manual/motorized operating mechanism with mechanical and
electrical closing
type of the driving mechanism / motor drive Yes
design of the overcurrent release ETU25B
General technical data
number of poles 3
size of the circuit-breaker 1
utilization category B
circuit-breaker / Design 3WL1
Voltage
Rated insulation voltage Ui 1 000 V
insulation voltage / rated value 1 000 V
operating voltage
at AC / at 50/60 Hz / rated value 690 V
Protection class
protection class IP IP20
protection class IP / on the front IP20
protection function of the overcurrent release LSI
Dissipation
power loss W
for rated value of the current / at AC / in hot
operating state / per pole
68.3 W
maximum 205 W
Current
continuous current / rated value / maximum 1 250 A
continuous current / rated value 1 250 A
adjustable current response value current
of the current-dependent overload release / fullscale value
1 250 A
of instantaneous short-circuit trip unit / initial
value
25 000 A
of instantaneous short-circuit trip unit / full-scale
value
25 000 A
Main circuit
operating frequency
1 / rated value 50 Hz
2 / rated value 60 Hz
operational current
at 40 degrees centigrade / rated value 1 250 A
at 50 degrees centigrade / rated value 1 250 A
at 55 degrees centigrade / rated value 1 250 A
at 60 degrees centigrade / rated value 1 250 A
at 65 degrees centigrade / rated value 1 250 A
at 70 degrees centigrade / rated value 1 210 A
Auxiliary circuit
number of NC contacts / for auxiliary contacts 2
number of NO contacts / for auxiliary contacts 2
Suitability
suitability for use Plant / motor protection
Adjustable parameters
adjustable current response value current / of the
current-dependent overload release / initial value
500 A
Product details
product component
trip indicator Yes
voltage trigger Yes
undervoltage release No
design of the auxiliary switch 2 NO + 2 NC
product extension / optional / motor drive No
Product function
product function
grounding protection No
phase failure detection Yes
Display and operation
display version without display
Short circuit
breaking capacity operating short-circuit current
(Ics) / at 415 V / rated value
66 kA
breaking capacity operating short-circuit current
(Ics) / at 500 V / rated value
66 kA
breaking capacity operating short-circuit current
(Ics) / at 690 V / rated value
50 kA
breaking capacity maximum short-circuit
current (Icu) / at 415 V / rated value
66 kA
breaking capacity maximum short-circuit
current (Icu) / at 500 V / rated value
66 kA
breaking capacity maximum short-circuit
current (Icu) / at 690 V / rated value
50 kA
Connections
arrangement of electrical connectors / for main
current circuit
Main connection rear side horizontal
type of electrical connection / for main current circuit busbar connection
Mechanical Design
height 460 mm
width 320 mm
depth 456 mm
fastening method drawer unit
Environmental conditions
ambient temperature / during operation
minimum -20 degrees centigrade
maximum 70 degrees centigrade
ambient temperature / during storage
minimum -40 degrees centigrade
maximum 70 degrees centigrade
Certificates
reference code
acc. to DIN EN 61346-2 Q
acc. to IEC 81346-2 Q