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NC1V Circuit Protectors
IDEC’s original spring-up, fingersafe terminals enhance reliability and safety.
• Integrated electric shock protection structure (IP20).
• Auxiliary/alarm contact terminals and voltage coil terminals on
the relay trip types are equipped with terminal covers.
• Spring-up, fingersafe terminals reduce wiring time.
• Ring terminals can be installed. Captive terminal screws.
• Available with inertia delay
• Available with auxiliary or alarm contacts
• Rated short-circuit capacity: 2500A
• Slim, space-saving housing
1-pole: 17.5mm wide
2-pole: 35.0mm wide
3-pole: 52.5mm wide
• Retractable actuator
• The trip-free mechanism maintains the circuit open even
when the operator is turned on after tripping.
Applicable Standards Certification Mark Certification Organization
(File No.)
UL1077 E68029
CSA C22.2 No. 235 LR83454
EN60934
B07 09 13332 063
European Commission's
Low Voltage Directive
GB17701-1999 No. 2008010307265840
Electrical Applicance and
Material Safety Law
Technical Standard
Series Trip
JET
Relay Trip
Specifications
Operator Style Retractable actuator
Internal Circuit Series trip (current trip), Relay trip (voltage trip)
Protection Method Hydraulic magnetic tripping system, Magnetic tripping system (voltage trip)
No. of Poles 1-pole 2-pole 3-pole
Rated Voltage (AC/DC) (Note 1) 250V AC 50/60Hz, 65V DC 250V AC 50/60Hz, 125V DC 250V AC, 50/60Hz
Series Trip
(Current Trip)
Rated Short-circuit
Capacity
250V AC, 2500A
65V DC, 2500A
250V AC, 2500A
125V DC, 2500A 250V AC, 2500A
Rated Current 0.1A, 0.3A, 0.5A, 1A, 2A, 3A, 5A, 7A, 10A, 15A, 20A, 25A, 30A
Operation Characteristics
(Note 2)
Time delay curve curve M (slow), curve A (medium), S (instantaneous)
Curves M and A are avilable with inertia delay.
Relay Trip
(Voltage Trip)
(Note 3)
Rated Current 30A
Trip Voltage 24 to 48V DC (at 25°C)
Voltage application duration 10 sec maximum, tripping time 0.1 sec maximum (at rated voltage)
Auxiliary Contact/
Alarm Contact
Contact Rating 125V AC 3A (resistive load), 30V DC 2A (resistive load)
Minimum Applicable Load 24V DC 1mA (resistive load, reference value)
Insulation Resistance 100 MΩ minimum (500V DC megger)
Dielectric Strength
2000V 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)
Vibration Resistance
(with rated current applied)
Damage limits: 147 m/s2 (10 to 55 Hz) (1-pole, 2-pole), 78 m/s2 (3-pole)
Operating extremes: 98 m/s2 (1-pole, 2-pole), 78 m/s2 (3-pole)
Shock Resistance
(S time delay curve: 80% rated current,
A, M time delay curve: 100% rated current)
Damage limits: 490 m/s2 (1-pole, 2-pole), 297 m/s2 (3-pole)
Operating extremes: 196 m/s2 (S, A, M types)
Electrical Life 10,000 cyles minimum (at rated curent), 10 operations per minute
Reference Temperature 40°C
Operating Tempperature
−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.
Operating Humidity 45 to 85% RH (no condensation)
Terminal Style
Main Circuit Terminal Spring-up, fingersafe terminal: M4 screw (up to 20A), M5 screw (25A and 30A)
Auxiliary/Alarm Contacts,
Voltage Coil Terminal M3.5 screw
Weight (approx.) 1-pole: 90g, 2-pole: 170g, 3-pole: 260g
Operating Temp. Derating Factor
50°C 0.9
55°C 0.8
60°C 0.7
Note 1: 3-pole type is for AC voltage only.
Note 2: For S (instantaneous) tripping curve, humming sound may be caused when used in an AC sinusoidal-wave current circuit around 80% of
the rated current, however, the performance of the circuit protector will not be affected.
To avoid unnecessary tripping, do not use in circuits where inrush currents may be present.
Note 3: Relay trip (voltage trip) type is not equipped with an overcurrent trip function.
• Do not use the NC1V circuit protectors 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 operations and damage may occur.
Note: TÜV, CE, and CCC marks are applicable for series trip type only.