MP-STS Series 500kW-4643

Seamless, High‑Reliability Transfer Solution for C&I ESS

The China Moneypro STS‑500 Static Transfer Switch (STS) is a cabinet‑based switching solution designed for commercial and industrial energy storage systems. It delivers ultra‑fast automatic switching between grid‑connected and off‑grid modes, ensuring critical loads remain powered during grid outages and synchronizing smoothly when grid power returns. The STS‑500 supports generator integration and heavy inductive loads, helping enable reliable microgrid and backup energy applications.

UPS‑Level Fast Switching Performance

Maximize Load Continuity

• Delivers UPS‑like on/off grid transfer in under 20 ms, minimizing load interruption during outages.

• Compatible with large‑scale storage systems to ensure uninterrupted power for essential loads.

• Built‑in bypass switch improves system robustness and reliability.

Benefits:

• Rapid backup switch for mission‑critical power continuity.

• Stable microgrid operation with automatic re‑synchronization.

Flexible Integration & Strong Load Support

Industrial‑Level Power Control

• Designed to pair with storage systems such as modular ESS and large hybrid inverters.

• Supports heavy inductive loads such as heat pumps, motors and large HVAC equipment.

• Built‑in branch protection switches eliminate need for extra distribution hardware.

Advantages:

• Simplified system integration with hybrid and on‑grid inverter ecosystems.

• Reduces complexity of installation and control wiring.

Reliable Operation in Outdoor Environments

Robust, Field‑Ready Design

• Cabinet‑level protection suited for demanding commercial and industrial installations.

• Designed for wide‑temperature performance and outdoor‑practical reliability.

• High ingress protection helps ensure durability under varying environmental conditions.

Benefits:

• Long‑term operational stability in harsh outdoor settings.

• Peace‑of‑mind reliability for mission‑critical infrastructure.

Why Choose China Moneypro STS‑500?

• Fast Transfer: UPS‑level switching in under 20 ms for power continuity.

• Strong Load Support: Handles heavy inductive loads and generator integration.

• Seamless Integration: Works with large ESS systems and hybrid inverters.

• Robust Design: Field‑ready, outdoor‑capable cabinet solution.

• Bypass Protection: Built‑in bypass for enhanced safety and reliability.

Core Specifications

• Model: STS‑500 Static Transfer Switch (cabinet system)

• Switching Response: UPS‑level transfer in < 20 ms

• Nominal Output Voltage: 220/380 V or 230/400 V, 3L/N/PE configurations

• Output Voltage Range: ~340 – 440 V (depending on deployment)

• Max. Apparent Power with Grid: ~630 kVA (typical representative)

• Ingress Protection: IP54 industrial‑grade enclosure

• Bypass Switch: Integrated static bypass for system reliability

• Generator Integration: Supported for hybrid microgrid configurations

Typical Applications

• Commercial ESS Backup: Maintain critical loads during grid outages.

• Industrial Microgrids: Seamless grid/off‑grid operation for industrial facilities.

• Generator Hybrid Systems: Cooperate with diesel or hybrid gensets for reliable power.

• Large Impedance Loads: Support HVAC, pumps and heavy motors without interruption.

FAQ – Common Questions

Q1: What is the China Moneypro STS‑500 used for?
It’s a Static Transfer Switch designed to manage on/off‑grid transitions for commercial and industrial energy systems with minimal interruption.

Q2: How fast does the STS switch between grid and backup?
The STS‑500 provides UPS‑level switching in under 20 ms for load continuity.

Q3: Can the STS handle heavy equipment loads?
Yes — it’s engineered to support large inductive loads like heat pumps and motors.

Q4: Is it suitable for outdoor installation?
Yes — the system’s protection and enclosure performance make it reliable in harsh conditions.

Q5: Does this system support generator integration?
Yes — the STS‑500 can integrate with generators in hybrid microgrid setups.