Description

Elevator contact switch NS131036C0378 MKG131-08 Brief Introduction

Product Name	Elevator contact switch
Model Number	NS131036C0378 MKG131-08
Quality	Original.Brand New
Payment	T/T. Paypal. Western Union
Delivery	3-5 Working Days
Packaging	Packed by carton

Elevator Contact Switch NS131036C0378/MKG131-08 – Nanjing Zhuye Elevatorparts

The elevator car top emergency power supply is a critical safety component that ensures the elevator’s emergency systems (such as lighting, communication, and door opening) operate normally when the main power supply fails. The Elevator Car Top Emergency Power Supply DJW12-4.5/7.0 provided byNanjing Zhuye Elevatorparts is a high-reliability power supply device tailored for mainstream elevator systems. It supports two capacity specifications (4.5Ah and 7.0Ah) to meet the needs of different elevator models, widely compatible with brands such as Schindler, OTIS, and KONE. Crafted with high-performance lithium-ion batteries, intelligent charging management modules, and flame-retardant casings, this emergency power supply meets international elevator safety standards (EN 81-20, GB 7588) and has become a trusted choice for global elevator maintenance teams and manufacturers.

The elevator leveling system is a key component that ensures the elevator car aligns accurately with the floor, providing safe and comfortable access for passengers. The elevator leveling sensor serves as the “eye” of this system, detecting the car’s position in real time. The Elevator Leveling Sensor TNC-121 provided by Nanjing Zhuye Elevatorparts is a high-precision position-sensing component tailored for mainstream elevator systems. It is widely compatible with elevator brands such as Schindler, OTIS, and KONE, suitable for both passenger and freight elevators. This sensor adopts advanced photoelectric sensing technology, featuring high detection accuracy, fast response speed, and strong anti-interference ability, ensuring the elevator stops stably and accurately at each floor. Crafted with high-quality optical components, sealed metal shells, and precision electronic circuits, it meets international elevator safety standards (EN 81-20, GB 7588) and has become a trusted choice for global elevator maintenance teams and manufacturers.

The elevator lock is a core safety component that ensures the elevator car door and landing door remain locked during operation, preventing accidental opening and ensuring passenger safety. The Elevator Lock CV50 180 JK406-001 provided by Nanjing Zhuye Elevatorparts is a high-reliability safety lock tailored for mainstream elevator systems. It is widely compatible with elevator brands such as Schindler, OTIS, and KONE, suitable for both passenger and freight elevators. This elevator lock integrates precise mechanical structure and stable electrical control, achieving reliable locking when the elevator is running and smooth unlocking when it reaches the floor. Crafted with high-strength alloy steel, flame-retardant plastic, and precision electronic components, it meets international elevator safety standards (EN 81-20, GB 7588) and has become a trusted choice for global elevator maintenance teams and manufacturers.

The elevator’s electrical control system is prone to arc generation during switch-on and switch-off of contacts, which may cause damage to electrical components or even fire hazards. The elevator arc extinguisher serves as a “safety barrier” to suppress and eliminate arcs. The Elevator Arc Extinguisher HD1.211 provided by Nanjing Zhuye Elevatorparts is a high-performance arc suppression component tailored for elevator electrical systems. It is widely compatible with mainstream elevator brands such as Schindler, OTIS, and KONE, suitable for arc suppression of elevator contactors, relays, and other electrical contacts. Crafted with high-quality arc-extinguishing materials, flame-retardant shells, and precision structural design, this arc extinguisher meets international electrical safety standards (IEC 60947, GB/T 14048) and has become a trusted choice for global elevator maintenance teams and manufacturers.

The elevator door operator is the “power core” of elevator door opening and closing, and the door operator belt serves as a critical transmission component that connects the motor and door pulley system. The Elevator Door Operator Belt L075 provided by Nanjing Zhuye Elevatorparts is a high-performance transmission belt tailored for mainstream elevator door operator systems. It is widely compatible with elevator brands such as Schindler, OTIS, and KONE, playing a vital role in ensuring smooth, quiet, and stable operation of elevator doors. Crafted with high-strength polyurethane (PU) material and embedded with high-tensile polyester cords, this belt features excellent wear resistance, tensile strength, and flexibility, meeting international elevator safety standards (EN 81-20, GB 7588) and becoming a trusted choice for global elevator maintenance teams and manufacturers.

The elevator contact switch is a key control component that ensures the safe operation of elevator doors and other systems, and its stable performance is closely linked to the door machine pulley system (composed of drive and driven pulleys). The Elevator Contact Switch Series (NS131036C0378, MKG131-08) launched by Nanjing Zhuye Elevatorparts are high-reliability control devices tailored for mainstream elevator systems. They are widely compatible with renowned elevator brands such as Schindler, OTIS, and KONE, accurately controlling the on-off of circuits to coordinate the operation of the door machine pulley system and ensure smooth door opening and closing. Crafted with high-precision contact mechanisms, flame-retardant shells, and anti-corrosion components, these contact switches meet international elevator safety standards (EN 81-20, IEC 60947) and have become a trusted choice for global elevator maintenance teams and manufacturers.

Nanjing Zhuye Elevatorparts has always adhered to the concept of “quality first, safety-oriented,” implementing strict quality control throughout the production process of the NS131036C0378 and MKG131-08 elevator contact switches. Each unit undergoes rigorous testing, including contact on-off performance verification, mechanical durability testing, flame-retardant rating assessment, and anti-corrosion performance trials. The switches adopt a snap-action contact design with a response time of less than 0.05 seconds, ensuring timely circuit switching to coordinate the door machine pulley system. The flame-retardant shell (UL94 V-0 rating) can withstand high temperatures up to 120℃, effectively preventing fire risks. With an IP65 dustproof and waterproof rating and anti-corrosion plating on the contact pins, these switches can adapt to the harsh operating environment of elevator machine rooms and door machines, with a mechanical service life exceeding 10 million operations.

Usage Guide for Elevator Contact Switch NS131036C0378/MKG131-08

Correct installation, debugging, and maintenance of the NS131036C0378 and MKG131-08 contact switches are crucial to ensuring the safe operation of the elevator door system and the coordinated work of the door machine pulley system. Nanjing Zhuye Elevatorparts recommends that only certified elevator electrical technicians perform installation and maintenance to avoid safety hazards.

1. Pre-Installation Preparation

First, confirm that the elevator’s MAC car lighting controller model matches the POWCV24181MH power supply (check parameters such as input voltage, output voltage, output current, and installation dimensions). Consult Nanjing Zhuye Elevatorparts’ technical team if there is any uncertainty about compatibility. Then, cut off the elevator’s main power supply and the secondary power supply for the car lighting system, lock the switch, and place a “Maintenance in Progress” warning sign at the elevator landing doors and machine room entrance. Locate the power supply installation position (usually on the car top or in the car control cabinet) and clean the area to remove dust, debris, and oil stains. Finally, prepare professional tools such as a screwdriver, wire stripper, multimeter, and insulation tester, and check that the new POWCV24181MH power supply from Nanjing Zhuye Elevatorparts is intact (no damage to the shell, no loose pins).

First, confirm that the elevator model matches the selected contact switch model (NS131036C0378/MKG131-08) by checking parameters such as contact type, rated voltage/current, and installation dimensions. Consult Nanjing Zhuye Elevatorparts’ technical team if there is any uncertainty about compatibility. Then, cut off the elevator’s main power supply and door machine power supply, lock the switch, and place a “Maintenance in Progress” warning sign at the elevator entrance. Fix the elevator door in a closed state with wooden wedges to prevent accidental movement. Finally, prepare tools such as a screwdriver, wrench, multimeter, and anti-static gloves, and clean the switch installation area to remove dust and debris. Meanwhile, check the door machine’s drive and driven pulleys for normal operation (record any abnormalities for subsequent maintenance).

2. Installation & Wiring

Locate the original contact switch position (usually on the door machine or elevator car) and take photos to record the wiring direction and fixing method for later reference. Disconnect the wires from the old switch according to the recorded labels and remove the old switch. Take the new contact switch (NS131036C0378/MKG131-08) from Nanjing Zhuye Elevatorparts, install it on the preset bracket, and fasten it firmly with screws. Ensure the switch’s actuator is correctly aligned with the trigger mechanism (e.g., door slider or cam). Connect the wires to the corresponding terminals strictly following the photos and the wiring manual provided by Nanjing Zhuye, ensuring firm connections and correct polarity (wrong connection may cause the switch to fail or damage the door machine pulley drive system). After wiring, use a multimeter to test the contact on-off performance to confirm normal operation.

3. Usage & Daily Maintenance

Remove the wooden wedges fixing the elevator door, restore the power supply, and switch the elevator to inspection mode. Operate the elevator door to open and close repeatedly, observing whether the NS131036C0378/MKG131-08 contact switch is triggered accurately and the door machine pulley system operates smoothly without jitter or stuck. Check the elevator’s control panel—there should be no fault alarms related to the contact switch. After 1 hour of stable operation, check the switch’s temperature and wiring terminals (no abnormal heat or loose wires). For daily maintenance, inspect the switch during weekly elevator patrols: Check if the actuator is flexible, the shell is intact, and the wiring terminals are tight and free of oxidation; clean the switch surface and actuator with a dry cloth. Every 3 months, recheck the contact on-off performance and trigger position; every 6 months, inspect the fixing screws and adjust the actuator position if necessary. At the same time, check the door machine pulley system’s operation—abnormal pulley wear may affect the switch’s trigger accuracy.

Replacement Cycle of Elevator Contact Switch NS131036C0378/MKG131-08

The replacement cycle of the NS131036C0378 and MKG131-08 contact switches is closely related to operating frequency and the working status of the door machine pulley system. Under normal circumstances (elevator daily operation 12-24 hours, door opening and closing times ≤ 1500 per day, dry and low-dust environment), Nanjing Zhuye Elevatorparts recommends a replacement cycle of 2-3 years. This cycle is determined based on long-term field operation data and component aging tests, fully considering the wear of the contact points, fatigue of the actuator, and aging of the internal spring.

For elevators in high-traffic areas (e.g., large shopping malls, airports with daily door opening and closing times ≥ 2000) or harsh environments (high humidity, heavy dust, large temperature fluctuations), the replacement cycle should be shortened to 1-1.5 years. High-frequency triggering accelerates contact wear and actuator fatigue, while harsh environments cause component corrosion. For low-usage elevators (e.g., villa elevators, small office buildings with daily operation time < 8 hours) in stable environments, the cycle can be extended to 3-4 years, but only after inspection and confirmation by Nanjing Zhuye’s technicians that the switch’s performance and coordination with the door machine pulley system meet standards.

Immediately replace the contact switch if any of the following occurs: The switch fails to trigger or is triggered incorrectly, causing the door machine pulley system to misoperate (e.g., door not opening/closing); the contact points are severely oxidized or burned, resulting in unstable circuit connection; the actuator is stuck or deformed, unable to return to its original position; the shell is severely damaged or corroded, losing protective performance; the switch causes frequent elevator fault alarms, and the fault cannot be eliminated after adjustment.

The Elevator Contact Switch Series (NS131036C0378, MKG131-08) from Nanjing Zhuye Elevatorparts integrate high reliability, durability, and strong compatibility, providing a critical control guarantee for elevator door systems and ensuring the stable operation of the door machine pulley system. By following the correct usage, maintenance, and replacement guidelines, you can effectively reduce elevator door faults, improve passenger safety and experience, and extend the service life of the entire door system. Choose Nanjing Zhuye Elevatorparts for 100% authentic NS131036C0378 and MKG131-08 contact switches, as well as professional services including model matching, on-site installation guidance, and timely after-sales support. Trust Nanjing Zhuye Elevatorparts for the stable and safe operation of your elevator.

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