Description

Elevator contact switch AZ14-1KD Brief Introduction

Product Name	Elevator contact switch
Model Number	AZ14-1KD
Quality	Original.Brand New
Payment	T/T. Paypal. Western Union
Delivery	3-5 Working Days
Packaging	Packed by carton

Elevator Contact Switch AZ14-1KD: Reliable Trigger Core from Nanjing Zhuye Elevatorparts

Elevator Contact Switch AZ14-1KD is a critical safety contact component widely applied in elevator systems, primarily used for signal triggering and state detection in key parts such as elevator door locks, safety barriers, and car emergency devices. It features a precision contact structure that can quickly and stably switch on/off electrical signals, ensuring the elevator control system accurately perceives the working state of each component—for example, confirming that the door is fully locked before the elevator starts, or triggering an emergency stop signal when a safety barrier is breached. Compatible with mainstream elevator brands and control systems (including KONE, Thyssenkrupp, and Hitachi), this switch is suitable for residential, commercial, and industrial elevators, serving as a vital “safety gatekeeper” for elevator operation. Exclusively supplied by Nanjing Zhuye Elevatorparts, a professional provider of high-quality elevator electrical components, the Elevator Contact Switch AZ14-1KD fully complies with international elevator safety standards (EN 81-20, GB 7588) and electrical contact switch specifications (IEC 60947-5-1). Manufactured with premium materials and precision machining technology, it boasts excellent contact reliability, wear resistance, and anti-interference performance, maintaining stable operation in harsh shaft environments, and winning trust from global elevator maintenance teams and manufacturers.

Nanjing Zhuye Elevatorparts adheres to the core philosophy of “Precise Contact, Safe Trigger” and implements strict quality control for the AZ14-1KD elevator contact switch. Each unit undergoes multi-stage pre-delivery inspections, including contact resistance testing, mechanical durability verification, insulation performance detection, and environmental adaptability evaluation. The AZ14-1KD contact switch adopts advanced materials and technologies: the shell is made of flame-retardant PA66 engineering plastic with IP65 protection rating, effectively resisting dust, moisture, and slight mechanical impact (-25℃ to 80℃); the contact points are made of silver-cadmium alloy, ensuring low contact resistance (≤ 30mΩ) and strong arc-extinguishing ability, supporting over 200,000 times of reliable switching; the internal return spring is made of high-carbon steel with precision heat treatment, providing stable contact pressure and ensuring consistent trigger action; the wiring terminals adopt a screw-type locking design, ensuring firm wiring and avoiding poor contact caused by vibration. The standardized AZ14-1KD model enables seamless matching with elevator mechanical and electrical systems, simplifying selection and replacement.

Step-by-Step Usage Guide for Elevator Contact Switch AZ14-1KD

To maximize the safety performance, service life, and operational stability of the Elevator Contact Switch AZ14-1KD, strictly follow the professional guidelines provided by Nanjing Zhuye Elevatorparts for selection, installation, and maintenance:

1. Professional Selection & Pre-Installation Preparation

Installation must be performed by certified elevator technicians proficient in elevator electrical systems. Prior to selection, refer to the elevator’s electrical schematic, maintenance manual, or consult Nanjing Zhuye Elevatorparts’ technical team to confirm that the AZ14-1KD switch matches the elevator’s working voltage (AC/DC 24V–250V), current rating (≤ 6A), and installation dimensions. Preparation steps: Cut off the elevator’s main power supply and lock the power switch; place a “Maintenance in Progress” warning sign at the elevator entrance and shaft access door; locate the switch installation position (e.g., door lock assembly, safety barrier bracket) and clean the area to remove dust, oil stains, and rust; prepare professional tools such as a screwdriver, wire stripper, and multimeter.

2. Correct Installation & Trigger Calibration

Old Switch Removal: Disconnect the wiring of the old contact switch (mark each wire’s position with labels to prevent wrong connection) and remove the old switch from the mounting base using a screwdriver. Check the mounting base for deformation or wear; repair or replace it if necessary, and ensure the trigger lever of the matching component (e.g., door lock bolt) moves smoothly.
New Switch Installation: Take the AZ14-1KD contact switch from Nanjing Zhuye Elevatorparts, fix it on the mounting base with screws (torque: 8–12N·m) to ensure the switch is installed vertically without tilting. According to the marked wiring positions and Nanjing Zhuye’s wiring guidelines, connect the wires to the switch’s terminals—tighten the terminal screws firmly to avoid loose wiring, and ensure no exposed wire cores to prevent short circuits.
Trigger Calibration: Adjust the relative position of the switch and the trigger component. For door lock switches, ensure the switch contact is triggered when the door lock bolt is fully extended (door locked) and disconnected when the bolt retracts (door unlocked); for safety barrier switches, ensure the switch is triggered immediately when the barrier is pressed. Manually simulate the trigger action repeatedly, and use a multimeter to test the switch’s on/off state to confirm sensitive and accurate triggering.

3. Post-Installation Testing & Daily Maintenance

Function Testing: Restore the elevator’s power supply and switch to inspection mode. Test the corresponding safety function controlled by the switch: For door lock switches, operate the elevator to confirm it can only start when the door is fully locked, and the door can be opened normally when the elevator stops; for safety barrier switches, trigger the barrier to verify the elevator stops immediately and sends an alarm signal. Use a multimeter to detect the switch’s output signal to ensure it is stable and meets the control system’s requirements.
Daily Inspection: Maintenance personnel should check the switch during daily patrols: Observe the switch’s shell for damage, corrosion, or loose mounting; check the wiring terminals for oxidation, looseness, or wire falling off; manually test the trigger sensitivity to ensure no stuck or delayed action; listen for abnormal sounds during triggering, which may indicate internal contact failure.
Regular Maintenance: Every 3 months, clean the switch’s surface, terminals, and trigger contact with a soft, dry cloth to remove dust and stains (avoid using corrosive cleaning agents). Every 6 months, use a multimeter to test the switch’s contact resistance and insulation performance; recheck the trigger position and adjust if there is any deviation due to vibration. For elevators in high-humidity or dusty environments, shorten the maintenance interval to 1 month.

Recommended Replacement Cycle for Elevator Contact Switch AZ14-1KD

As a core contact component enduring long-term mechanical trigger wear, electrical arc erosion, environmental erosion (humidity, dust, temperature changes), and elevator vibration, the AZ14-1KD elevator contact switch has a specified service life. Timely replacement is crucial to avoiding faults such as poor contact, contact welding, or trigger failure—issues that may lead to elevator misoperation (e.g., starting with the door unlocked) or failure to trigger emergency protection, posing severe safety risks to passengers and maintenance personnel.

1. Standard Replacement Cycle

Under normal operating conditions (elevator daily operation time 12–24 hours, annual trigger times ≥ 80,000, operating environment temperature -25℃ to 80℃, humidity 10%–95%), the recommended replacement cycle for the AZ14-1KD elevator contact switch is 2–4 years. This cycle is determined based on Nanjing Zhuye Elevatorparts’ long-term field operation data, contact wear tests, and global user feedback on elevator safety components.

2. Adjustments for Special Scenarios

High-Frequency Use & Harsh Environments: For elevators in high-traffic locations (e.g., large airports, central shopping malls) with frequent trigger action (annual times ≥ 150,000), or in harsh environments (e.g., coastal areas with high salt spray, industrial sites with strong electromagnetic interference), the replacement cycle is shortened to 1–2 years. Frequent triggering accelerates contact wear and spring aging, while harsh environments cause rapid shell corrosion and contact oxidation.
Low-Frequency Use & Stable Environments: For elevators with low usage frequency (e.g., villa elevators, small office buildings with daily operation time < 8 hours) and stable operating environments (constant temperature and humidity, low dust), the replacement cycle can be extended to 4–6 years—only after Nanjing Zhuye Elevatorparts’ technicians inspect and confirm that the switch’s contact performance, trigger sensitivity, and structural integrity meet factory standards.

3. Immediate Replacement Conditions

Replace the AZ14-1KD elevator contact switch immediately if any of the following issues occur, regardless of its service life:

The switch has poor contact (contact resistance > 100mΩ tested by multimeter), leading to unstable signal transmission or occasional function failure.
The switch contact is welded (permanently on) or stuck (cannot be triggered), resulting in elevator safety function disorders.
The switch’s shell is severely corroded, cracked, or deformed, or the terminals are oxidized and cannot be tightened, affecting basic use safety.
Professional testing confirms that the switch’s insulation performance is unqualified (insulation resistance < 50MΩ), posing a risk of electric leakage or short circuit in the electrical system.

In conclusion, the Elevator Contact Switch AZ14-1KD from Nanjing Zhuye Elevatorparts is a high-quality, highly reliable safety contact component tailored for modern elevator systems. By following the correct selection, installation, maintenance, and replacement guidelines, elevator maintenance teams can effectively ensure the stable operation of the elevator’s safety control system, eliminate potential safety hazards, and safeguard passenger travel safety. Choosing Nanjing Zhuye Elevatorparts means you get 100% authentic AZ14-1KD contact switches, plus professional support—including model matching, on-site installation guidance, and prompt after-sales service. Trust Nanjing Zhuye Elevatorparts for the reliable triggering of your elevator safety system.

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