Page 198 - Lockwell Industrial Catalogue

iMNs Delayed
• Tripsthedevicewithwhichitiscombinedwhenitsinputvoltagedecreases(between 70 % and 35 % Un). Prevents device closing again until its input voltage is restored
• Tripsthedevicewithwhichitiscombinedwhenitsinputvoltagedecreases(between 70 % and 35 % Un). Prevents device closing again until its input voltage is restored
• Not tripping on transient voltage dip (up to 0.2 s)
Reference
A9A26963 A9A27108
iMX Shunt release
• Trips the breaker when powered
Emergency stoppage by normally open push button
Reference
A9A26500
iMNx Independent of the supply voltage
• Tripping of the associated device by opening of the control circuit (e.g. push-button, dry contact)
• A drop in the supply voltage does not trip the associated device bb A locking push-button control allows the circuit protected (e.g. machine control) to be placed in safety configuration
• Emergency stoppage with fail-safe principle
bb Insensitive to control circuit voltage variation to increase service continuity
Reference
A9A26969 A9A26971
Reference
A9A26476 A9A26477 A9A26478
iMX+OF
• Trips the breaker when powered
Includes an open/close contact (OF) to indicate the “open” or “closed” position of the breaker
• Emergency stoppage by normally open push button bb Remote indication of the position of the associated breaker
Reference
A9A26947 A9A26948
198
iMSU Overvoltage release
• Switches off the power supply by opening the breaker with which it is combined, in the event that the phase/ neutral voltage is exceeded (loss of neutral).
• For a four-phase network, use three iMSU tripping auxiliaries
• Protection of equipment against overvoltages on the
electrical network (neutral conductor break)
• bb Voltage monitoring between phase and neutral conductors
DISTRIBUTION & SWITHGEAR