How battery lowering works
Understand the roles of the backup device and elevator controller.
Elevator Battery Lowering and Battery Backup Devices
Dynavect manufactures elevator battery lowering devices and battery backup systems for compatible elevator rescue applications. Designed and built in Texas.
Meet the LR750 SeriesBuilt for rescue power
CSA CertifiedLR750 Series
Made in USADesigned and built in Texas
500 WPure sine-wave output
LR750 Series
Elevator Battery Backup Systems
Dynavect LLC designs and manufactures elevator battery lowering devices and emergency rescue power systems in Texas. The LR750 Series supplies 500 W of pure sine-wave emergency power for compatible elevator controllers. Choose a Standard or MRL enclosure and a 200-240 VAC or 400-480 VAC output class. Designed for hydraulic automatic rescue and traction manual rescue applications, with OLED monitoring, CAN communication, and daily battery self-test.
- OLED display for real-time monitoring
- Battery state of charge (SoC)
- CAN communication capability
- Smart charging system
- Daily battery self-test
- Lockable battery disconnect switch
- Separate 200-240 VAC and 400-480 VAC output classes
- Available in Standard and MRL configurations
- CSA Certified
Power for the rescue sequence
A battery lowering device supplies emergency power so the elevator controller can carry out its defined rescue operation. The required loads, voltage, and controller interface determine the right device. Rescue power is different from continued normal elevator service during an outage.
Select your LR750 configuration
Compare voltage classes, enclosure fit, and application requirements.
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Elevator Battery Lowering FAQs
Answers to common questions about elevator battery lowering, battery backup, and selecting the LR750 for compatible rescue applications.
What is elevator battery lowering?
Elevator battery lowering uses stored battery power to support a controlled rescue operation when normal building power is unavailable. The required sequence depends on the elevator and its controller. The LR750 supplies backup AC power for compatible rescue applications; it does not replace the controller’s safety functions or provide normal elevator operation during an extended outage.
What is the difference between battery lowering and elevator battery backup?
Battery backup describes the reserve power source. Battery lowering describes a specific rescue function supported by that power. These terms are related, but the actual operation depends on the elevator type, controller, and connected loads. Choose equipment for the required rescue sequence rather than relying on the product name alone.
Can a standard UPS replace an elevator battery lowering device?
A standard UPS should not be assumed suitable for an elevator rescue application. Selection requires checking the required output voltage, waveform, load demands, controller interfaces, and rescue sequence. The LR750 is designed for compatible elevator rescue-power applications, but suitability must still be verified against the elevator controller and installation requirements.
Can the LR750 be used with hydraulic and traction elevators?
The LR750 supports automatic hydraulic rescue and manual traction rescue when integrated with compatible controllers. The required configuration and operating sequence differ between these applications. Do not assume that every controller is compatible or that manual traction rescue means automatic traction rescue. Review the controller requirements and LR750 documentation before selection or installation.
How do I choose the correct LR750 configuration?
Check the elevator type, controller requirements, connected rescue loads, required output voltage, and installation space. LR750 selection includes separate 200–240 VAC and 400–480 VAC classes, plus Standard and MRL configurations. These are selection choices, not a claim that every unit supports every voltage or application. Confirm the exact configuration before ordering.
How much power does the LR750 provide?
The LR750 is rated at 500 W and provides a pure sine-wave output. Suitability depends on the connected loads and their starting requirements, not just their nominal power ratings. Review the full electrical specifications and controller requirements to determine whether the LR750 meets the needs of the intended rescue application.
Can the LR750 replace an existing battery lowering unit?
The LR750 is a versatile replacement option for many existing battery lowering units and can often be used as a drop-in replacement. Its wiring can also be adapted to suit existing elevator controllers. Confirm the required voltage, rescue loads, controller connections, and mounting space before installation. Share your existing unit and controller details with Dynavect for help selecting the appropriate configuration.
Where can I find wiring information and request a quote?
The LR750 manual and resource pages provide technical information for product selection and installation planning. Use the current documentation together with the elevator controller’s requirements. To request a quote, provide the elevator type, controller details, required voltage class, intended rescue loads, and installation constraints so the appropriate configuration can be reviewed.