Description
Elevator car intercom EMA25300F2/B7 Brief Introduction
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Product Name |
Elevator car intercom |
| Model Number | EMA25300F2
EMA25300B7 |
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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 Intercom EMA25300F2/B7 – 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 car intercom is a vital emergency communication component, serving as a lifeline for trapped passengers to connect with the monitoring center or maintenance personnel. The Elevator Car Intercom EMA25300F2/B7 launched by Nanjing Zhuye Elevatorparts is a high-performance communication device specifically designed for mainstream elevator systems, with excellent compatibility with renowned brands like OTIS (especially SWEET series) , Schindler, and KONE. It supports reliable two-way or five-party communication (car, monitoring room, machine room, car top, pit) , featuring clear call quality, low noise, and strong anti-interference ability. Crafted with high-quality flame-retardant plastic, stable electrical components, and a durable call button, this intercom meets international safety standards (EN 81-20, IEC 60947) and has become a preferred choice for global elevator maintenance teams and manufacturers.
Nanjing Zhuye Elevatorparts adheres to the “quality first, safety-oriented” principle, implementing strict quality control throughout the production of the EMA25300F2/B7 elevator car intercom. Each unit undergoes rigorous testing, including communication quality verification, anti-interference performance testing, durability testing, and flame-retardant rating assessment. The intercom adopts a four-wire system design for stable signal transmission, with a maximum communication distance of 1200 meters when using 0.75mm² shielded cables to avoid signal attenuation. The built-in 800mW speaker ensures loud and clear audio, while the waterproof and dustproof structure adapts to the harsh operating environment inside the elevator car. It also supports external emergency call buttons, providing dual guarantee for passenger rescue in emergencies.
Usage Guide for Elevator Car Intercom EMA25300F2/B7
Correct installation, debugging, and operation of the EMA25300F2/B7 elevator car intercom are crucial to ensuring smooth emergency communication. Nanjing Zhuye Elevatorparts emphasizes that only certified elevator maintenance technicians should perform installation and debugging to avoid communication failures caused by improper operation.
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 is compatible with the EMA25300F2/B7 intercom (especially for OTIS SWEET series elevators, consult Nanjing Zhuye Elevatorparts’ technical team for compatibility verification). Prepare necessary tools and materials: the intercom main unit, car sub-unit, RVVP 4-core shielded cable (0.75mm² or above), fixing brackets, screws, a multimeter, and wire strippers. Cut off the elevator’s main power supply, lock the switch, and place a “Maintenance in Progress” warning sign at the elevator entrance. Check the intercom’s appearance for damage and test the basic functions of the main unit and sub-unit through simulated power supply before installation.
Debugg2. Operation & Usage
Install the EMA25300F2/B7 car sub-unit inside the elevator car’s control panel, reserving a sound transmission hole for the microphone and speaker. Fix it firmly with brackets to avoid loosening due to elevator vibration. Route the shielded cable from the car to the machine room along the elevator’s traveling cable, avoiding crossing with strong electric wires to reduce interference. Connect the cable to the corresponding terminals of the main unit in the machine room and the car sub-unit strictly according to Nanjing Zhuye’s wiring diagram—ensure the shielded layer is fully connected to enhance anti-interference performance. After wiring, power on the system, press the call button on the car sub-unit, and check if the main unit in the monitoring room receives the call signal promptly. Test the two-way communication quality to ensure no noise, echo, or disconnection; adjust the volume if necessary until the communication is clear.
3. Daily Use & Maintenance
For daily use, passengers can press the red emergency call button on the EMA25300F2/B7 intercom when trapped; the indicator light will flash to indicate that the call is in progress, and they can communicate with the monitoring room directly after the call is connected. Maintenance personnel should conduct a functional test monthly: press the call button to check if the communication is smooth, inspect the cable connections for looseness or oxidation, and clean the call button and intercom surface with a dry cloth to remove dust. Every 3 months, use a multimeter to test the cable’s continuity and signal strength; every 6 months, open the intercom cover to check for internal component damage, and replace any faulty parts with genuine ones from Nanjing Zhuye Elevatorparts.
Replacement Cycle of Elevator Car Intercom EMA25300F2/B7
The replacement cycle of the EMA25300F2/B7 elevator car intercom is closely related to usage frequency and operating environment. Under normal circumstances (elevator daily operation 12-24 hours, car environment dry and low-dust), Nanjing Zhuye Elevatorparts recommends a replacement cycle of 3-4 years. This cycle is determined based on long-term field data, fully considering the wear of the call button, aging of internal circuits, and attenuation of communication performance.
For elevators in harsh environments (high humidity, heavy dust, or frequent vibration) or high-traffic areas (large shopping malls, airports with daily operation ≥ 20 hours), the replacement cycle should be shortened to 2-3 years. Harsh environments accelerate component corrosion and cable aging, while high-frequency use increases button wear. For low-usage elevators (villa elevators, small office buildings with daily operation < 8 hours) in stable environments, the cycle can be extended to 4-5 years, but only after inspection and confirmation by Nanjing Zhuye’s technicians that the communication quality and emergency response function meet standards.
Replace the intercom immediately if any of the following issues occur, regardless of service life: The call button is stuck or invalid, failing to initiate a call; communication is intermittent, noisy, or disconnected, and the fault cannot be eliminated after debugging; the cable is severely damaged or oxidized, affecting signal transmission; the intercom shell is cracked or deformed, losing protective performance; the main unit or sub-unit fails to work normally after power-on, and professional maintenance cannot repair it.
The Elevator Car Intercom EMA25300F2/B7 from Nanjing Zhuye Elevatorparts integrates reliability, durability, and strong compatibility, providing a critical communication guarantee for elevator emergency rescue. By following the correct usage, maintenance, and replacement guidelines, you can ensure that the intercom works stably when needed, protecting passenger safety and improving rescue efficiency. Choosing Nanjing Zhuye Elevatorparts means you get 100% authentic EMA25300F2/B7 intercoms, as well as professional services including model matching, on-site installation guidance, and 24/7 after-sales support. Trust Nanjing Zhuye Elevatorparts for the safe operation of your elevators.
