Mechanical interlock NC7-80-95, for contactor NC1 80-95, NXC 75-100_CHINT

Safe reversing: CHINT mechanical interlock for contactors (NC1 80-95, NXC 75-100) A mechanical interlock is a critically important accessory designed to prevent two contactors from closing simultaneously in reversing motor control circuits or in automatic transfer switching (АВР) systems. Using an interlock eliminates the risk of a phase-to-phase short circuit if signals are accidentally applied to both devices at once. Technical specifications This model is specially designed to work with medium and heavy frame-size power devices: Compatibility with the NC1 series: Intended for NC1-80 and NC1-95 contactors. Compatibility with the NXC series: Suitable for the new NXC-75, NXC-85 and NXC-100 contactor models. Interlock type: Purely mechanical (lever type). Material: Impact-resistant, non-flammable plastic, resistant to vibration. Mounting: Fitted into the slots between two contactors, rigidly fixing their mechanisms relative to each other. Operating principle and advantages The mechanical interlock creates a physical barrier to the operation of the electromagnets: Elimination of human error: Even if the operator presses two buttons simultaneously or the controller program issues an erroneous command, only one contactor will close. Reliability: The mechanism always works, even when there is no voltage in the control circuits or when the wire insulation is damaged. Ease of installation: The design allows two standard contactors to be combined into a single reversing unit in a few minutes. Compactness: The accessory hardly increases the overall dimensions of the assembly, as it is located in the space between the housings. Areas of application A mechanical interlock is a mandatory element for the following units: Reversing starters: Control of the direction of rotation of powerful motors (forward/reverse) on conveyors, overhead cranes and hoists. АВР systems (automatic transfer switching): Switching the load between the main incomer and a generator, where simultaneous connection of two power sources is not permitted. Star-delta: Soft-starting circuits for powerful motors that require a strict sequence of contactor operation. Installation instructions Place two compatible contactors (for example, two NXC-85) side by side on a flat surface. Insert the interlock module into the special side openings in the contactor housings. Make sure that the latches of the module have engaged and that the moving parts of the contactors are mechanically linked through the interlock levers. Important: After mechanical assembly it is also recommended to provide an electrical interlock , using the additional normally closed (NC) contacts on the contactors themselves. This will give the system a double degree of protection. Check operation manually: when the plunger of one contactor is pressed, the plunger of the other must be blocked in the open position. Order the CHINT mechanical interlock right now — ensure maximum safety and eliminate the risk of faults in your power circuits!

Manufacturer

CHINT

Shipped from the Almaty warehouse on the day of your request. Across Kazakhstan we ship by freight carriers; the manager will calculate the cost.

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