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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 250 A

Cam Setting

 N/A A B C D E F G

Full Load Current at Cam Setting A

 N/A 96.2 to 115.3 A

Full Load Current at Cam Setting B

 N/A 115.4 to 134.5 A

Full Load Current at Cam Setting C

 N/A 134.6 to 153.7 A

Full Load Current at Cam Setting D

 N/A 153.8 to 173.0 A

Full Load Current at Cam Setting E

 N/A 173.1 to 192.2 A

Full Load Current at Cam Setting F

 N/A 192.3 to 211.4 A

Full Load Current at Cam Setting G

 N/A 211.5 to 217.6 A

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

 N/A 1250

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

 N/A 1500

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

 N/A 1750

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

 N/A 2000

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

 N/A 2250

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

 N/A 2500

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

 N/A 2750

Rated Current at 480 Alternating Current (AC) Voltage

 N/A 100 kA

Connection Type

 N/A H 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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