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Motor Protection Circuit Breaker
J7MN
MPCB system
• Rotary and switch types
• Rated operational current 32 A, 63 A and 100 A
• Switching capacity up to 100 kA/400 V
• Fixed short-circuit release = 13 x I
• Overload release adjustable 0.65 - 1 x I
• Motor protection CLASS 10
• Fulfill all needed standards
Options
• ON/OFF indication
• Trip alarm/indication
• Undervoltage release
• Shunt release
• Three phase busbar system
• Moulded plastic enclosures
• Door coupling rotary mechanisms
• Insulated Link modules
Ordering Information
■ Model Number Legend
1. Motor Protection Circuit Breaker
1)
Motor Protection Circuit Breaker
J7MN-##-###
2)
Type/range
1
2
3
3)
Setting range
2. Options for MPCB
1)
Options MPCB
J77MN-##-###
2)
Auxiliary contacts
1
2
3
T:
U:
S:
DC:
HU:
V:
PF:
3)
Other specifications
3. Busbars, line side terminals and shrouds
1)
Options MPCB
J75-###-###
2)
CPM: Busbars
1
2
3
BTC:
TA:
3)
Other specifications
u
u
Trip indicator
Undervoltage release
Shuntrelease
Door-coupling
DIN-rail adaptors
Link modules
Enclosure
Line side
Shrouds
)
Motor Protection Circuit Breaker
J7MN
I-1
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Summary of Contents for Omron J7MN
-
Page 1: Ordering Information
J7MN MPCB system • Rotary and switch types • Rated operational current 32 A, 63 A and 100 A • Switching capacity up to 100 kA/400 V • Fixed short-circuit release = 13 x I • Overload release adjustable 0.65 - 1 x I •... - Page 2 ■ System overview Motor Protection Circuit Breaker Rated Current In Suitable for Setting range Instantaneous Short Circuit Type motors 3~400 V Thermal Short Circuit Breaking Overload Release Capacity at Release 3~400 V kA (Icu) 0.16 0.10 - 0.16 J7MN-3P-E16 J7MN-3P 0.25...
- Page 3 Enclosure Plastic enclose with rotary operating mechanism, lockable space for aux. contact + release J77MN-PF-3R Enclose with rotary operating mechanism yellow - red, lock space for aux. contact + release J77MN-PFC-3R Door-coupling rotary The door-coupling rotary operating mechanisms consist of...
- Page 4 The sum of all added currents per module must not exeed the above mentioned nominal currents! For more than 5 units (64 A) and 4 units (120 A) the system can be extended accordingly by installing an additional busbar J7MN...
- Page 5 ■ Components for Fuseless Load Feeders, DIN-rail Mounting Type of coordination „1“ 3 x 415 V 10 kA (other conditions on request) Motor Contactor Link-module DIN-rail adaptor Circuit-breaker 3~400 V up to …KW Range Model Model Range J7KNA-09 J77MN-VKA Not needed...
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Page 6: Specifications
The maximum rated current the rated current In of the circuit-breakers. The circuit-breakers can for the back-up fuse is specified in the tables. - Page 7 25,000 Max. operating frequency per hour (motor starts) 1/h Suitable at 690 V for: earthed-neutral systems, overvoltage category I to IV, pollution degree 3 (standard-industry): U = 6 kV. Suitable at 1000 V for: earthed-neutral systems, overvoltage category I to IV, pollution degree 3 (standard-industry): U = 8 kV.
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Page 8: Auxiliary Switches
The tripping characteristic of electromagnetic overcurrent releases (short-circuit releases) The tripping characteristic of the inverse-time delayed overload releases apply for DC and AC with a frequency of 0 to 400 Hz. At operating temperature, the tripping times of the thermal releases are reduced to approximately 25 %. - Page 9 Max. breaker size 400 A Circuit breakers J7MN as "Combination Motor Controller Type E" and " Suitable for Group Installation" Acc to UL508 demands a line-side 1 inch air and 2 inch creepage are approved to UL 508 in combination with the insulation barriers distance for „Combination Motor Controller Type E“...
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Page 10: Wiring Diagrams
Circuit-break- cover can be sealed to prevent unauthorized adjustments to the set ers with a short-circuit breaking capacity of 50 kA or 100 kA at a volt- current. age of 400 V AC are practically short-circuit-proof at this voltage, as... - Page 11 1) Side aux. contact 3P/3R 6) Push-in Lugs for screw mounting 2) Magnetic trip alarm 3R/6R/9R 7) Handle lock in OFF-position ( 5 mm) 3) Shunt or undervoltage release of arcing 8) 4 mm hexagon socket screw 4) Transverse aux. contact 9) 70 mm DIN-rail acc.
- Page 12 1) Max. for shackle diameter for padlock 8 mm ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. In the interest of product improvement, specifications are subject to change without notice.