Description
Elevator car top emergency power supply DJW12-4.5/7.0 Brief Introduction
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Product Name |
Elevator car top emergency power supply |
| Model Number | DJW12-4.5
DJW12-7.0 |
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Quality
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Original.Brand New
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Payment
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T/T. Paypal. Western Union
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Delivery
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3-5 Working Days
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Packaging
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Packed by carton
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Elevator Car Top Emergency Power Supply DJW12-4.5/7.0 – 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.
Nanjing Zhuye Elevatorparts adheres to the core philosophy of “Stable Power Supply, Safe Emergency” and implements strict quality control throughout the production process of the DJW12-4.5/7.0 emergency power supply. Each unit undergoes rigorous testing, including capacity calibration, charging/discharging cycle testing, temperature adaptability assessment, and short-circuit protection verification. The high-performance lithium-ion battery has a cycle life of ≥ 1000 times, ensuring stable power output for a long time. The built-in intelligent management module automatically completes charging, floating charging, and overcharge/overdischarge protection, effectively extending battery life. The flame-retardant ABS casing can withstand high temperatures up to 150℃ and has excellent impact resistance, adapting to the harsh operating environment of the elevator car top.
Usage Guide for Elevator Car Top Emergency Power Supply DJW12-4.5/7.0
Correct installation, debugging, and maintenance are crucial to ensuring the reliable performance of the DJW12-4.5/7.0 emergency power supply. Nanjing Zhuye Elevatorparts emphasizes that only certified elevator maintenance technicians are allowed to perform related operations, as improper use may lead to failure of emergency functions and affect passenger safety.
1. Pre-Installation Preparation
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 DJW12-4.5/7.0 emergency power supply (select 4.5Ah or 7.0Ah based on elevator emergency load requirements; check parameters such as input voltage 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 power supply of the car top system, lock the switch, and place a “Maintenance in Progress” warning sign at the machine room entrance and car top. Use a ladder to reach the car top safely and fix it to prevent sliding. Finally, prepare professional tools such as a screwdriver, wrench, multimeter, and insulated gloves, and clean the installation position on the car top to remove dust, debris, and oil stains.
Debugg2. Installation & Calibration
If replacing the old emergency power supply, first take photos to record its installation position, wiring direction, and terminal connections for later reference. Disconnect the wires from the old power supply according to the labels and remove the old power supply. Take the new DJW12-4.5/7.0 emergency power supply from Nanjing Zhuye Elevatorparts, install it on the preset bracket, and fix it firmly with screws (ensure the power supply is placed horizontally to avoid impact on battery performance). Connect the wires to the corresponding terminals strictly following the photos and the wiring diagram provided by Nanjing Zhuye: Connect the AC input line to the “AC IN” terminal, the emergency output line to the “DC OUT” terminal, and the ground line to the “GND” terminal. After wiring, debug the power supply: Restore the main power supply, check if the charging indicator is on (red light indicates charging, green light indicates full charge); cut off the main power supply to test the emergency output, ensuring the elevator emergency lighting and communication system work normally. Use a multimeter to measure the output voltage, which should be stable at 12V.
Debugg3. Operation & Daily Maintenance
Remove the ladder fixing the car top, restore all power supplies, and switch the elevator to normal operation mode. Operate the elevator to run for 1 hour, then cut off the main power supply to test the emergency power supply’s continuous output capacity (it should maintain normal operation for at least 30 minutes). After the test, restore the main power supply and check if the charging function is normal. For daily maintenance, inspect the power supply during monthly car top patrols: Check if the casing is damaged, the indicator lights work normally, and the wiring terminals are tight; clean the surface with a dry cloth to ensure heat dissipation. Every 3 months, use a multimeter to test the input and output voltage; every 6 months, fully discharge and charge the battery once to activate its performance and extend service life.
Replacement Cycle of Elevator Car Top Emergency Power Supply DJW12-4.5/7.0
The replacement cycle of the DJW12-4.5/7.0 emergency power supply is closely related to usage frequency and operating environment. Under normal circumstances (elevator daily operation 12-24 hours, car top environment dry and low-dust, no frequent power outages), Nanjing Zhuye Elevatorparts recommends a replacement cycle of 2-3 years. This cycle is determined based on long-term field operation data, battery aging tests, and module performance assessments, fully considering the attenuation of battery capacity and the wear of internal electronic components.
For elevators in high-traffic areas (e.g., large shopping malls, airports with frequent power grid fluctuations) or harsh environments (e.g., high humidity, heavy dust, high temperature on the car top), the replacement cycle should be shortened to 1-1.5 years. Frequent charging and discharging accelerate battery aging, while harsh environments affect the stability of electronic modules. 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 battery capacity and output performance meet safety standards.
Replace the emergency power supply immediately if any of the following issues occur, regardless of its service life: The battery capacity drops below 70% of the rated capacity (tested by professional equipment); the power supply fails to output power during emergency situations; the indicator lights are abnormal (e.g., flickering, not lighting up); the casing is severely damaged, deformed, or corroded; the power supply overheats or emits a burning smell during charging or use; the output voltage deviation exceeds ±5% (uncorrectable by debugging).
The Elevator Car Top Emergency Power Supply DJW12-4.5/7.0 from Nanjing Zhuye Elevatorparts integrates stable power supply, durability, and strong compatibility, providing a solid safety guarantee for elevator emergency systems. By following the correct usage, maintenance, and replacement guidelines, you can effectively ensure the elevator’s emergency functions operate reliably when needed, protecting the safety of trapped passengers. Choosing Nanjing Zhuye Elevatorparts means you get 100% authentic DJW12-4.5/7.0 emergency power supplies, as well as professional services including model matching, on-site installation guidance, and timely after-sales support. Trust Nanjing Zhuye Elevatorparts for the safety of your elevator emergency system.












