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NOARK® Electric offers a complete range of 3 pole Molded Case Motor Circuit Protectors (MCPs, magnetic or short circuit protection only) which are used to protect the cables feeding three phase motors in six frame sizes: M1M - 150 A, M2M - 250 A, M3M - 400 A, M4M - 600 A, M5M - 800 A, and M6M - 1200 A. Each frame size offers a range of interrupting ratings at 240-690 Vac and 250-600 Vdc. 5-Year limited warranty.
Unit of Measure

Specifications

Brands

 N/A NOARK®

Continuous Current

 N/A 50 A

Cam Setting

 N/A A B C D E F G

Full Load Current at Cam Setting A

 N/A 19.2 to 22.9 A

Full Load Current at Cam Setting B

 N/A 23.0 to 26.8 A

Full Load Current at Cam Setting C

 N/A 26.9 to 30.6 A

Full Load Current at Cam Setting D

 N/A 30.7 to 34.5 A

Full Load Current at Cam Setting E

 N/A 34.6 to 38.3 A

Full Load Current at Cam Setting F

 N/A 38.4 to 42.1 A

Full Load Current at Cam Setting G

 N/A 42.2 to 43.5 A

Motor Circuit Protection (MCP) Trip Setting  at Cam Setting A

 N/A 250

Motor Circuit Protection (MCP) Trip Setting  at Cam Setting B

 N/A 300

Motor Circuit Protection (MCP) Trip Setting  at Cam Setting C

 N/A 350

Motor Circuit Protection (MCP) Trip Setting  at Cam Setting D

 N/A 400

Motor Circuit Protection (MCP) Trip Setting  at Cam Setting E

 N/A 450

Motor Circuit Protection (MCP) Trip Setting  at Cam Setting F

 N/A 500

Motor Circuit Protection (MCP) Trip Setting  at Cam Setting G

 N/A 550

Rated Current at 480 Alternating Current (AC) Voltage

 N/A 35 kA

Connection Type

 N/A S Interrupting - Bus Bar Connection

Features

Features

 N/A The traditional system used for this purpose is based on three different devices: a circuit breaker for protection against short-circuit, a thermal relay for protection against overload and phase loss or unbalance of phase, and a contactor for motor switching.
In particular, when selecting these devices, different factors must be taken into consideration, such as:
  • The motor power
  • The diagram and type of starting
  • The type of motor: with cage rotor or with wound rotor
  • The fault current at the point of the network where the motor is installed

Certifications

Certifications

 N/A
  • UL 489 Recognized, File Number E355392 (Standard for connection terminals which allows the user to apply field wiring directly to the breaker)
  • Certified for Canada According to CSA Standards 22.2 No.5
  • IEC/EN 60947-2
  • CE Compliant
  • RoHS Compliant

Note

Note

 N/A Bus Bar Connection MCP not sold with (Bus Bar Connection not available through NOARK® Electric) or Terminal Lugs.

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