Elevator Emergency Lighting Power Supply YW-EP220/12
The YW-EP220/12, part of the YW-EP220 series, is a classic 3-in-1 elevator emergency lighting power supply box widely used in elevator maintenance and modernization projects.
It integrates:
- · Automatic AC-to-battery power switching
- · Stable DC 12V output
- · Three independent power circuits for lighting, intercom, and alarm systems
The YW-EP220/12 is designed to support elevator emergency functions and comply with safety requirements related to emergency lighting and communication during power failure.
It is commonly used in modernization and maintenance projects for many elevator brands.
Product Display
Specifications
|
Item |
Specification |
| Input Voltage | AC 220V ±15%, 50/60Hz |
| Output Voltage | DC 12V regulated output |
| Battery Type | 12V sealed maintenance-free battery |
| Typical Capacity | 12V 1.3Ah / 2.2Ah |
| Switching Time | < 0.5 second |
| Emergency Backup | Typically over 1 hour |
How to Perform Maintenance and Troubleshooting
Emergency Light Flashes or Turns Off
Typical sealed lead-acid battery lifespan. No need to replace the entire power supply box, usually only the battery requires replacement.
Power Indicator Off / No Charging
Check whether the upstream AC 220V breaker to the car top has tripped, or whether the glass fuse (1A/2A) near the AC input inside the power box is blown.
Rocker switch (I/O) risk
The switch is often mistakenly turned off after maintenance, cutting off the discharge/emergency circuit. In a power outage, the emergency system will not activate, leading to inspection failure. It must always stay in “I” (ON) position.
FAQs
To ensure compatibility, please provide the brand, model, or part number of your elevator. You can also send us photos of the existing part, especially the label or connector details. Our technical team will help you verify the correct replacement.
We supply both original brand parts and high-quality compatible replacements for major brands such as KONE, Otis, etc. All products are tested to ensure reliable performance.
Most products support low MOQ or even 1 piece for sample orders. Bulk orders will enjoy better pricing.
We have three strategically located warehouses in Saudi Arabia, Jiangsu, and Xi'an, ensuring stable inventory and fast delivery to meet global customer demands.
We accept T/T, Western Union, Alipay, and other common payment methods, providing flexible options for our global customers.
Yes, most products come with a 1 year warranty.
Yes, we ship worldwide via DHL, FedEx, UPS, air freight, or sea freight, depending on your needs and urgency.
Yes, our experienced team provides pre-sales selection support and after-sales technical assistance to help ensure correct installation and operation.
