Circuit Breakers Switches & Pilot Lights Display Lights Relays & Sockets Timers Terminal Blocks NRA Series Circuit Breakers NRA S eries Features: Available in 4 different styles NRAN NRAS Excellent overload and short circuit protection Small size and high-ef ciency Life expectancy of over 10,000 operations UL1077 recognized Supplementary Protectors VDE certi ed to EN60934 License 116381 File No. E68029 NRAR Rocker Illuminated Rocker (with Neon lamp) Speci cations Protection Method Electromagnetic tripping Internal Circuit Series current trip NRAS and NRAN: 1, 2, 3 Number of Poles NRAR: 1 Rated Voltage 250V AC, 50/60Hz, 65V DC 0.3A, 0.5A, 0.75A Rated Tripping Currents 1A, 2A, 3A, 5A, 7.5A, 10A, 15A, 20A, 25A, 30A 250V AC, 50/60Hz, 1,000A Rated Interrupting Capacity 65V DC, 1,000A Auxiliary Contact SPDT microswitch: 250V AC, 5A (resistive load), 50V DC, 1A (resistive load) Alarm Contact SPDT microswitch: 250V AC, 5A (resistive load), 50V DC, 1A (resistive load) Reference Temperature 25C Operating Temperature 40 to +85C (avoid freezing) Insulation Resistance 100M (measured with 500V megger) Between main circuit terminals: 2,000V AC, 1 minute Dielectric Strength Between main circuit and auxiliary contact: 2,000V AC, 1 minute Vibration Resistance 100N (approximately 10G) (10 to 100Hz) Shock Resistance 1,000N (approximately 100G) Life Expectancy Minimum 10,000 cycles (at 6 operations per minute) Main terminal: Quick-connect receptacle 0.250 (accepts M3.5 screw terminal adapter) Termination Auxiliary contact, alarm contact: Quick-connect receptacle 0.080 Illumination Voltage Neon: 120, 240V AC, 50/60Hz (NRAR illuminated units) Not suitable for branch circuit protection. USA: 800-262-IDEC Canada: 888-317-IDEC 883NRA Series Circuit Breakers P art Numbering Guide NRA series part numbers are composed of up to 8 part number codes. When ordering an NRA series part, select one code from each category. Example: NRAR 1 1 11 -F - 30A -AA -1 NRAR 1 1 11 F 30A AA 1 j Model k Poles l Internal m Auxiliary and n Inertia Delay o Rated Current p Time Delay Curve q Pilot Light* Circuit Alarm Contacts Part Number Codes: NRA Series Description Part Number Code Remarks Lever (round cutout) NRAS j Model Lever (rectangular cutout) NRAN Rocker NRAR 1-pole 1 NRAR available in 1-pole only. All multi-pole circuit breakers are simultaneous k No. of Poles 2-pole 2 throw/simultaneous break. 3-pole 3 All levers are mechanically interlocked. l Internal Circuit Series current trip 1 Without 00 m Auxiliary and With auxiliary contact 11 Auxiliary contact switches change state with lever and/or overload condition Alarm Contacts With alarm contact 21 Alarm contact switches change state only with overload condition Without inertia delay Blank n Inertia Delay With inertia delay F 0.3A, 0.5A, 0.75A, 1A, 2A, 3A, 5A, All current ratings must be listed in amps (A). Rated current (current trip) o Rated Current 7.5A, 10A, 15A, 20A, 25A, 30A Example conversion: 300mA = 0.30A. AC curves AA, BA,MA p Time Delay Curve For time delay curves, see page 888. DC curves AD, MD With neon light 120V AC (50/60Hz) 1 *Applicable to illuminated NRAR only. q Pilot Light* With neon light 240V AC (50/60Hz) 2 1. For NRA series accessories, see page 886. 2. For NRA series time delay curves, see page 888. 3. For NRA series dimensions, see page 890. 4. Not suitable for branch circuit protection. 5. UL recognized, applicable standard: UL1077, Supplementary Protectors. 884 www.idec.com Circuit Breakers Terminal Blocks Timers Relays & Sockets Display Lights Switches & Pilot Lights