Essential Components Catalog Circuit Protection, Motor Controls and Pilot Devices Branch, Motor Circuit and Supplementary Protection Molded Case Circuit Breakers Molded Case Switches Motor Circuit Protectors Miniature Circuit Breakers Motor Controllers and Overload Protection Manual Motor Starters Safety Contactors Safety Control Relays Pilot Devices Indicator Lights Push Buttons Selector Switches Excellent Products. Exceptional Value.

Company Overview About us NOARK Electric is a global manufacturer of low-voltage electrical components for industrial applications. We specialize in motor controls and circuit protection for original equipment manufacturers. Our mission is to provide customers with the highest quality products at an exceptional value and back them with worldclass service and support. Every NOARK product is tested and certified to the highest industry standards. Research and Development The entire portfolio of high-quality NOARK products is designed for manufacturing and assembly. Each component is developed in-house...

Molded Case Circuit Breakers UL 489 and UL 60947-4-1 (formerly UL 508) Applications A molded case circuit breaker can be used to provide overload and short circuit protection for cables, control panels, motors and branch circuits. In addition, the National Electrical Code (NEC) requires the following when controlling a motor: A means of disconnecting power from the circuit Short circuit protection for the cables A way to start and stop the motor (typically a contactor) Overload protection for the motor (typically an overload relay) The molded case circuit breaker can provide the means to disconnecting...

Molded Case Circuit Breakers Product Overview Features Molded Case Circuit Breakers, 15-1200 Amperes NOARK Electric offers a complete range of Molded Case Circuit Breakers in six frame sizes: M1 - 150A, M2 - 250A, M3 - 400A, M4 - 600A, M5 - 800A, and M6 - 1200A. Each frame size offers a range of interrupting ratings from 240-690 Vac and 250-600 Vdc. A • High-breaking capacity and a patented arc extinguishing design • Bearing-type spindle reduces the operating force required to open and close the operating mechanism • High quality compact modular design • Fixed and adjustable trip unit settings...

Molded Case Circuit Breakers Line/Load Lug Connection • Terminal lugs are configurations available. See pages 19-20. For higher ratings at 480 Vac and 600 Vac see H version on website na.noark-electric.com Ratings • Available interrupting current • Amperes † For M1-M4 frames using aluminum wire contact NOARK Electric customer service. Most Popular provided standard on all NOARK MCCBs. Catalog Number Catalog Number Catalog Number Cu wire only † 3/0 AWG*- 500 kcmil Cu wire only † 3/0 AWG*- 500 kcmil 1-Hole Cu wire only † #8 AWG*- 350 kcmil 1-Hole Cu wire only † #8 AWG*- 350 kcmil * AWG = American...

Molded Case Circuit Breakers Line/Load Lug Connection • Terminal lugs are provided standard on all NOARK MCCBs. configurations available. See pages 19-20. 80% Rated • Available interrupting current • Amperes Catalog Number Line/Load Lug Connection M4S500T3L 2-Hole Cu wire only † (2) 3/0 AWG*- 400 kcmil Most Popular Cu wire only † (2) 3/0 AWG*- 400 kcmil 2-Hole Al/Cu Wire (2) 250kcmil-600 kcmi 3-Hole Al/Cu Wire (3) 250kcmil-500 kcmil 2-Hole Al/Cu Wire (2) 250kcmil-600 kcmi 3-Hole Al/Cu Wire (3) 250kcmil-500 kcmil Electronic Trip Unit • Available interrupting current • Amperes Catalog Number Catalog...

Molded Case Circuit Breakers M1-M6 Technical Data M1 Rated Current (A) Breaker Type Interrupting Capacity (kA rms) 240 Vac Circuit Breaker Ratings UL 489 CSA C22.2 (kA rms) Vac 50/60 Hz Ultimate Breaking Capacity (Icu = 100% Ics) (kA rms) Alarm Switch Shunt Trip Flange Type Handle Rotary Type Handle Under-Voltage Trip Handle Lock Connection Line/Load Lug Connection Accessories Auxiliary Contact Current Rating (A) @ 104 ºF (40 ºC) A = Adjustable T = Thermal F = Fixed M = Magnetic Thermal-Magnetic Trip Units (Fixed) Circuit Breaker Ratings IEC 60947-2

Molded Case Circuit Breakers M1-M6 Technical Data M1 Impulse Withstand Voltage (Vimp) Operational Voltage (Ve) Utilization Category Mechanical Operating Cycles Electrical Operating Cycles Cable Connection Wire 167 ºF (75 ºC) Cu Wire Only AWG* 310 (35) * AWG = American Wire Gauge M1 - M5 Interruption Polarity for DC Application 2 Poles

Molded Case Switches Product Overview Features Molded Case Switches, 100-1200 Amperes NOARK Electric offers a complete range of Molded Case Switches in six frame sizes: M1 - 150A, M2 - 250A, M3 - 400A, M4 - 600A, M5 800A, and M6 - 1200A. Each frame size offers a range of interrupting ratings at 240-690 Vac and 250-600 Vdc. Molded Case Switches are only used as disconnect switches. Features: • Instantaneous trip ability and a patented arc extinguishing design • Bearing-type spindle reduces the operating force required to open and close the operating mechanism • High-quality compact modular design...

Molded Case Switches Line/Load Lug Connection • Terminal lugs are provided standard on all NOARK MCCBs. Most Popular configurations available. See pages 19-20. Catalog Number • Available interrupting current • Amperes Catalog Number † For M1-M4 frames using aluminum wire contact NOARK Electric customer service. Cu wire only † #8 AWG*- 350 kcmil 1-Hole Cu wire only † 3/0 AWG*- 500 kcmil 2-Hole Cu wire only † (2) 3/0 AWG*- 400 kcmil 4-Hole Al/Cu Wire (4) 3/0 AWG*-500kcmil * AWG = American Wire Gauge Additional products, accessories and higher ratings available. Contact your NOARK representative...

Molded Case Switches M1D - M6D Technical Data M1D Rated Current (A) Switch Type Rated Voltage 50/60 Hz Circuit Breaker Ratings IEC 60947-2 Ultimate Breaking Capacity (Icu = 100% Ics) (kA rms) Circuit Breaker Ratings UL 489-C-SA C22.2 (kA rms) Vac 50/60 Hz Line/Load Lug Connection Insulation Voltage (Vi) Impulse Withstand Voltage (Vimp) Operational Voltage (Ve) Mechanical Operating Cycles Electrical Operating Cycles Weight of Unit lb Lugs lb-in (N.m) *NOTE: When protected by an upstream circuit breaker or fuse, the molded case switch would have a withstand rating.