Hydraulic-Magnetic Circuit Breakers
Using a hydraulic-magnetic tripping method ensures calibration of the NC1V
Circuit Breaker is unaffected by ambient temperature. The NC1V series will
carry their full rated current continuously over a wide temperature range, from
-10 to 60ºC, providing a more reliable and accurate system. With many other
available features, make NC1V Circuit Breakers your choice to provide more
value for your investment.
Reliable, safe and accurate
NC1V Circuit Breakers
• Hydraulic-magnetic tripping system
• Slim housing design; 1, 2, and 3-pole
• Cost-effective fuse block replacement - better
accuracy over temperature
• Flat retractable lever for safety operations
• Spring-up terminals allow for use of ring terminals
• DIN rail or direct panel mount
• Optional built-in auxiliary or alarm controls
• UL1077
ON
OFF
Retractable Lever
Auxiliary or Alarm Contact
(Shown without terminal cover.)
2
3
Protection
Specifications
Operator Style
Internal Circuit
Protection Method
No. of Poles
Rated Voltage (AC/DC)
Note 1
Rated Short-circuit
Capacity
Series Trip
(Current Trip)
Rated Current
Operation Characteristics
Note 2
NC1V Circuit Breakers
Part Numbers
Retractable lever
Series trip (current trip), Relay trip (voltage trip)
Hydraulic magnetic tripping system, Magnetic tripping system (voltage trip)
1-pole
250V AC 50/60Hz, 65V DC
250V AC, 2500A
65V DC, 2500A
2-pole
250V AC 50/60Hz, 125V DC
250V AC, 2500A
125V DC, 2500A
3-pole
250V AC, 50/60Hz
250V AC, 2500A
1-pole
With
—
–
One Auxiliary Contact
One Alarm Contact
—
One Auxiliary Contact
One Alarm Contact
—
One Auxiliary Contact
—
Two Auxiliary Contacts
One Alarm Contact
2-pole
One Auxiliary Contact and
One Alarm Contact
—
One Auxiliary Contact
With
Series Trip
(Current Trip)
Two Auxiliary Contacts
One Alarm Contact
One Auxiliary Contact and
One Alarm Contact
—
One Auxiliary Contact
Two Auxiliary Contacts
—
Three Auxiliary Contacts
One Alarm Contact
One Auxiliary Contact and
One Alarm Contact
3-pole
Two Auxiliary Contacts and
One Alarm Contact
—
One Auxiliary Contact
Two Auxiliary Contacts
Operating Temp.
50°C
55°C
60°C
Derating Factor
0.9
0.8
0.7
Internal
Circuit
No. of
Poles
Inertia
Delay
Auxiliary Contact
Alarm Contact
Code
Part No.
6
Rated
Current
7
Time Delay Curve
8
Voltage Trip Coil
Voltage
NC1V-1100-
6 7
NC1V-1111-
6 7
NC1V-1121
6 7
NC1V-1100F-
6 7
NC1V-1111F-
6 7
NC1V-1121F-
6 7
NC1V-2100-
6 7
NC1V-2111-
6 7
NC1V-2112-
6 7
NC1V-2121-
6 7
NC1V-2131-
6 7
NC1V-2100F-
6 7
NC1V-2111F-
6 7
NC1V-2112F-
6 7
NC1V-2121F-
6 7
NC1V-2131F-
6 7
NC1V-3100-
6 7
NC1V-3111-
6 7
NC1V-3112-
6 7
NC1V-3113-
6 7
NC1V-3121-
6 7
NC1V-3131-
6 7
NC1V-3132-
6 7
NC1V-3100F-
6 7
NC1V-3111F-
6 7
NC1V-3112F-
6 7
NC1V-3113F-
6 7
NC1V-3121F-
6 7
NC1V-3131F-
6 7
NC1V-3132F-
6 7
NC1V-1500-
8
0.1A
0.3A
0.5A
1A
2A
3A
5A
7A
10A
15A
20A
25A
30A
0.1A, 0.3A, 0.5A, 1A, 2A, 3A, 5A, 7A, 10A, 15A, 20A, 25A, 30A
Time delay curve curve M (slow), curve A (medium), S (instantaneous) , Curves M and A are also available with inertia delay option.
30A
24 to 48V DC (at 25°C), Voltage application duration 10 sec maximum, tripping time 0.1 sec maximum (at rated voltage)
125V AC 3A (resistive load), 30V DC 2A (resistive load)
24V DC 1mA (resistive load, reference value)
100MΩ minimum (500V DC megger)
2,000V AC, 1 minute (between terminals when main contacts are open, between live parts of different poles, between live and dead
parts)
600V AC (between terminals when auxiliary circuits are open)
Damage limits: 147m/s (10 to 55Hz) (1-pole, 2-pole), 78m/s (3-pole)
2
2
Operating extremes: 98m/s (1-pole, 2-pole), 78m/s (3-pole)
Damage limits: 490m/s (1-pole, 2-pole), 297m/s (3-pole)
2
Operating extremes: 196m/s (S, A, M types)
10,000 cyles minimum (at rated curent), 10 operations per minute
40°C
−10 to +60°C (no freezing) Rated current is based on an ambient temperature of 40°C. When the operating temperature exceeds 40°C,
derate the rated current by using the factors shown below.
45 to 85% RH (no condensation)
Spring-up, fingersafe terminal: M4 screw (up to 20A), M5 screw (25A and 30A)
M3.5 screw
1-pole: 90g, 2-pole: 170g, 3-pole: 260g
2
2
2
2
Relay Trip
(Voltage Trip)
Note 3
Auxiliary Contact/
Alarm Contact
Insulation Resistance
Dielectric Strength
Rated Current
Trip Voltage
Contact Rating
Minimum Applicable Load
Vibration Resistance
(with rated current applied)
Shock Resistance (S time delay curve: 80% rated
current, A, M time delay curve: 100% rated current)
Electrical Life
Reference Temperature
Operating Temperature
Operating Humidity
Main Circuit Terminal
Terminal Style
Weight (approx.)
Auxiliary/Alarm Contacts,
Voltage Coil Terminal
M (slow)
A (medium)
S (instantaneous)
—
1. 3-pole type is for AC voltage only.
2. For S (instantaneous) tripping curve, humming sound may occur when used in an AC sinusoidal-wave current circuit around 80% of the rated current, however, the
performance of the circuit breaker will not be affected.
To avoid unnecessary tripping, do not use in circuits where inrush currents may be present.
3. Relay trip (voltage trip) type is not equipped with an overcurrent trip function.
Do not use the NC1V circuit breakers in environments where they are exposed to extreme temperature, humidity, dust, corrosive gases, vibration, shock, or in a circuit where
inrush current may be present, otherwise unnecessary operation and damage may occur.
With
Three Auxiliary Contacts
One Alarm Contact
One Auxiliary Contact and
One Alarm Contact
Two Auxiliary Contacts and
One Alarm Contact
Part Number Configuration
Relay Trip
(Voltage
Trip)
1-pole
2-pole
3-pole
—
—
NC1V-2500-
8
NC1V-3500-
8
—
—
DC24V
NC1V - 2 1 00 F - 30A A DC24V
1
Type
NC1V: Lever style
DIN rail and panel mounting
No. of Poles
2
1: 1-pole
2: 2-pole
3: 3-pole
3
Internal Circuit
1: Series trip (current trip)
5: Relay trip (voltage trip)
4
Auxiliary/Alarm Contacts
00: None
11: With one auxiliary contact
12: With two auxiliary contacts
13: With three auxiliary contacts
21: With one alarm contact
31: With one auxiliary contact and one alarm contact
32: With two auxiliary contacts and one alarm contact
8
Voltage Trip Coil Voltage
DC24V: 24-48V DC
-Specified for relay trip only.
7
Time Delay Curve
M: Slow
A: Medium
S: Instantaneous
-For both AC/DC.
-Specified for series trip only.
6
Rated Current
0.1A, 0.3A, 0.5A, 1A, 2A, 3A,
5A, 7A, 10A 15A, 20A, 25A, 30A
-Specified for series trip only.
5
Inertia Delay
Blank: Without
F:
With
-Inertia delay is for AC voltage only.
-Available with medium and slow types
(not applicable with relay trip).
1. Specify rated current, time delay curve, or voltage trip coil voltage in place of
6 7 8
when ordering.
2. Inertia delay is for an AC circuit. Additionally, time delay curve of S (instantaneous) is not available with inertia delay.
3.
8
only applies to voltage trip models.
800.262.4332
www.IDEC.com/circuitbreaker
4
5
Performance
Internal Circuits
1-pole
NC1V-1100
(Without auxiliary/alarm contacts)
LINE
NC1V Circuit Breakers
Time Delay Curves at 40°C
NC1V-1111
(With auxiliary contact)
LINE
NC1V-1121
(With alarm contact)
LINE
NC1V-1500
(Relay Trip)
A
1000
DC (Note)
AC
One auxiliary contact.
One alarm contact.
100
Curve A
(medium)
1000
DC (Note)
AC
100
Curve M
(slow)
B
10
10
Time in sec
C
1
Time in sec
100
200
300
400
500
600
700
800
900
1000
1
LOAD
LOAD
C
N
O
N
C
LOAD
C
N
O
N
C
D
0.1
0.1
2-pole
NC1V-2100
(Without auxiliary/alarm contacts)
LINE
LINE
LINE
0.01
0.01
NC1V-2111
(With auxiliary contact)
LINE
One auxiliary contact.
NC1V-2121
(With alarm contact)
LINE
LINE
One alarm contact.
NC1V-2500
(Relay Trip)
A
A
Also available with two
auxiliary contacts.
Also available with
one auxiliary contact
and one alarm contact.
125
100
125
200
300
400
500
600
700
800
900 1000
Current (percent load of the rated current)
Current (percent load of the rated current)
B
C
B
C
1000
DC (Note)
LOAD
LOAD
LOAD
LOAD
C
N
O
N
C
LOAD
LOAD
C
N
O
N
C
D
D
100
Curve S
(instantaneous)
Note: The entire shaded area applies to AC.
For DC, the shaded area on the right of the dashed line applies.
10
3-pole
NC1V-3100
(Without auxiliary/alarm contacts)
LINE
LINE
LINE
LINE
Time in sec
NC1V-3111
(With auxiliary contact)
LINE
LINE
LINE
NC1V-3121
(With alarm contact)
LINE
LINE
A
NC1V-3500
(Relay Trip)
A
A
1
AC
0.1
800.262.4332
www.IDEC.com/circuitbreaker
0.01
B
C
B
C
B
C
100
D
LOAD
LOAD
LOAD
LOAD
LOAD
LOAD
C
N
O
N
C
125
200
300
400
500
600
700
800
900
1000
D
D
Current (percent load of the rated current)
1000
LOAD
One auxiliary contact. Also available with
two or three auxiliary contacts.
LOAD
LOAD
One alarm contact. Also available with one
auxiliary and one alarm contacts, and two
auxiliary and one alarm contacts.
C
N
O
N
C
1000
100
Curve A
(medium)
With Inertia Delay
100
Curve M
(slow)
With Inertia Delay
Overcurrent-Time Delay Characteristics (sec at 40°C) [vertical mounting]
Item
Time Delay Curve
Percent of Rated Current
100%
NO TRIP
NO TRIP
NO TRIP
NO TRIP
NO TRIP
125%
—
*25 to 240
*60 to 600
25 to 240
60 to 600
150%
*0.005
to 0.1
16 to 140
30 to 200
—
—
175%
0.003
to 0.06
—
—
—
—
200%
0.0027
to 0.05
6 to 32
9 to 60
6 to 32
10 to 60
400%
0.002
to 0.03
0.4 to 4
0.4 to 10
0.8 to 6
0.8 to 10
600%
0.002
to 0.028
0.0055
to 1.5
0.006
to 4.5
0.09
to 3.5
0.06
to 4.5
800%
0.002
to 0.025
0.004
to 0.8
0.004
to 1.8
0.02
to 1.8
0.02
to 3
1000%
10
10
Time in sec
AC (50/60Hz)/DC
S (instantaneous)
A (medium)
M (slow)
With Inertia Delay
A (medium)
With Inertia Delay
M (slow)
0.002
to 0.022
0.004
to 0.65
0.004
to 0.8
0.01
to 1.0
0.01
to 1.75
1
Time in sec
100
200
300
400
500
600
700
800
900
1000
1
0.1
0.1
0.01
0.01
AC (50/60Hz)
125
100
125
200
300
400
500
600
700
800
900
1000
6
*MAY TRIP on DC
Current (percent load of the rated current)
Current (percent load of the rated current)
7
Reliability
Time Delay Curve and Ambient Temperature
NC1V circuit breakers employ an electromagnetic tripping system,
where the rated current (trip current) is not affected by ambient
temperatures. But, the time delay may vary with the oil viscosity in
the oil dash pot. Lower oil viscosity at higher temperatures results in a
shorter delay, whereas at lower temperatures, the delay will be longer.
Temperature Correction Curve
The time delay curves on the preceding page are measured at
40°C. With reference to the following curves, time delays can be
corrected according to ambient temperature.
600
500
400
NC1V Circuit Breakers
Inertia Delay
Inertia delay is designed not to trip on a non-repeating single
pulse of 20 times the rated current (peak value) for a duration
of 8ms. In addition, circuit breakers equipped with inertia delay
do not respond to high inrush currents caused by transformer or
lamp loads, but perform the specified interruption on subsequent
overcurrents. Inertia delay is available on AC circuits, and is not
available with the series trip curve S (instantaneous).
12000
Dimensions (mm)
1-pole
NC1V-1100
12.0
M4 Terminal Screw
(up to 20A)
M5 Terminal Screw
(25A or more)
DIN Rail (BNDN1000)
6.6
66.0
48.3
12.0
NC1V-1111
(Auxiliary Contact),
NC1V-1121
(Alarm Contact)
M4 Terminal Screw
(up to 20A)
M5 Terminal Screw
(25A or more)
DIN Rail (BNDN1000)
6.6
66.0
48.3
71.4
56.0
72.5
44.0
71.4
56.0
72.5
48.4
10000
1. Percent of rated current
Pulse peak current
×100
Protector rated current
2. Sinusoidal or parabolic pulse
17.5
78.8
ON
ON
2-ø4.5 Holes
(for screw mounting)
M3.5 Terminal Screw
5.0
33.0
17.5
2-ø4.5 Holes
(for screw mounting)
Terminal Cover
5.0
33.0
Percent of Rated Current (%)
Pulse peak current
Change of Time Delay (%)
300
200
8000
Pulse width (Duration)
NC1V-1500 (Relay Trip)
DIN Rail (BNDN1000)
12.0
6.6
M5 Terminal Screw (30A)
66.0
48.3
Mounting Hole Layout (M4 Mounting Screws)
12
6000
100
80
60
40
-20
-10
0
10
20
30
40
50
60
70
4000
71.4
56.0
78.8
ON
72.5
48.4
2-M
4
Ambient Temperature (°C)
2000
M3.5 Terminal Screw
17.5
The time delay is based on an ambient temperature of 40°C. Time de-
lays at other temperatures are corrected according to the temperature
correction curve. The time delay of the instantaneous time delay curve
(S) is not affected by the ambient temperature.
When operating temperature exceeds
40°C, derate the rated current by
multiplying the derating factor shown
on the right.
Operating Temp.
Derating Factor
2-ø4.5 Holes
(for screw mounting)
Terminal Cover
5.0
33.0
1
2
3
4
5
6
7
8
9
10
Pulse Width (ms)
2 Pole
NC1V-2100
29.5
M4 Terminal Srew
(up to 20A)
M5 Terminal Screw
(25A or more)
6.6
66.0
48.3
DIN Rail (BNDN1000)
50°C
55°C
60°C
0.9
0.8
0.7
NC1V-2111 (one auxiliary contact), NC1V-2112 (two auxiliary contacts)
NC1V-2121 (one alarm contact), NC1V-2131 (one auxiliary and one alarm contact)
29.5
M4 Terminal Screw
(up to 20A)
M5 Terminal Screw
(25A or more)
DIN Rail (BNDN1000)
6.6
66.0
48.3
71.4
56.0
71.4
56.0
Series Trip (Current Trip) at 25°C
Rated
Current
0.1A
0.3A
0.5A
1A
2A
3A
5A
7A
10A
15A
20A
25A
30A
For AC 50/60 Hz
Impedance (Ω)
Curve S
66.0
6.6
1.92
0.50
0.16
0.07
0.025
0.014
0.007
0.006
0.005
0.004
0.003
Curves A, M
116.0
11.0
3.65
0.93
0.27
0.12
0.050
0.027
0.021
0.010
0.006
0.005
0.004
For DC
Resistance (Ω)
Curve S
43.0
4.1
0.86
0.25
0.11
0.050
0.015
0.011
0.005
0.005
0.004
0.004
0.003
Curves A, M
106.0
10.0
3.40
0.90
0.25
0.11
0.045
0.025
0.020
0.009
0.005
0.005
0.004
Relay Trip (Voltage Trip) at 25°C
Tripping Voltage
24-48V
Tolerance:
±25%
ON
For DC
Resistance (Ω)
100.0
35.0
2-ø4.5 Holes
(for screw mounting)
5.0
33.0
35.0
M3.5 Terminal Screw
2-ø4.5 Holes
(for screw mounting)
Terminal Cover
5.0
33.0
Dimensions shown are for NC1V-2111 and NC1V-2121.
NC1V-2500 (Relay Trip)
29.5
M5 Terminal Screws (30A)
6.6
66.0
48.3
DIN Rail (BNDN1000)
Mounting Hole Layout (M4 Mounting Screws)
29.5
Voltage Drop Due to Coil Resistance or Impedance
Tolerance: ±25% (up to 20A),
±50% (25A and 30A)
The internal resistance or impedance of a circuit breaker tends to be
larger for a smaller-rated current. Therefore, when circuit breakers
with a small rated current are used, voltage drop should be taken
into consideration. Internal resistance also varies with time delay
curves, which should also be considered during installation.
71.4
56.0
72.5
48.4
71.4
78.8
ON
2-M
4
35.0
M3.5 Terminal Screw
2-ø4.5 Holes
(for screw mounting)
800.262.4332
Terminal Cover
5.0
33.0
www.IDEC.com/circuitbreaker
8
78.8
Impedance and Coil Resistance
78.8
ON
72.5
44.0
71.4
72.5
48.4
78.8
9
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