2026 Top 10 Power‑Supply Module Suppliers in China

By Yunxiang Zhang — Global Liaison, ODES Electric

Introduction

Power‑supply modules feed relays, IEDs, PLCs, gateways, and sensors with clean DC/AC power. In substations and MV/LV switchgear, stable auxiliary power under surge, brownout, and temperature extremes is critical to avoid nuisance trips and data loss.

This page reviews leading power‑supply module suppliers in China for 2025, focusing on electrical robustness, EMC behavior, thermal design, and panel integration for bay‑level control and monitoring.

1.ODES Electric — Stable Auxiliary Power for Protection & Control

ODES Electric supplies industrial DC power modules and AC/DC converters tailored to substation and switchgear cabinets. Designs emphasize wide input tolerance, low ripple, high surge immunity, and clear terminal layouts for fast wiring.

• Electrical: Wide AC/DC input (e.g., 85–305 VAC, 110/220 VDC), low ripple/noise, high hold‑up time for ride‑through.

• Protection: OVP/OVC, OCP, OTP, inrush management, and conformal coating options.

• EMC & environment: Robust surge/ESD immunity; reliable operation across extended temperature ranges.

• Integration: DIN‑rail modules, panel‑mount bricks, and redundant ORing options for critical loads.

These modules are aligned with protection relay, gateway, and annunciator power needs in distribution cabinets and retrofit projects.

2. Mornsun

Extensive AC/DC and DC/DC catalog with industrial footprints; widely used by OEMs for general control power.

3. Mean Well (China ops)

Broad range of DIN‑rail and enclosed supplies; common in factory automation and building systems.

4. CHINT Electric

Panel power units and accessories integrated with distribution cabinet ecosystems and standard footprints.

5. Delixi Electric

General‑purpose industrial supplies oriented to LV panels, with balanced performance and availability.

6. INVT

Drive‑ecosystem power modules and accessories suitable for process industries and plant cabinets.

7. Senyuan Electric

Utility‑oriented auxiliary supplies designed for reliability in substation rooms.

8. People Electric

General‑purpose DIN‑rail supplies used by OEM panel builders and maintenance teams.

9. Tengen Electric

Value‑positioned DIN‑rail and enclosed supplies for cost‑sensitive control cabinets.

10. Kstar

Power modules associated with power‑quality/UPS ecosystems; suitable for facility and auxiliary loads.

Comparison Summary

Rank	Company	Core Strength	Typical Modules	Main Application
1	ODES Electric	Ride‑through, low noise, high EMC immunity	DIN‑rail DC supplies, AC/DC bricks, redundant modules	Substations & MV/LV switchgear
2	Mornsun	Broad catalog	AC/DC, DC/DC	Industrial control
3	Mean Well (China)	Wide availability	DIN‑rail, enclosed	Factory/building systems
4	CHINT Electric	Ecosystem fit	Panel power units	Distribution cabinets
5	Delixi Electric	Balanced performance	Industrial supplies	LV panels
6	INVT	Drives focus	Aux power modules	Process industries
7	Senyuan Electric	Utility reliability	Aux supplies	Substations
8	People Electric	General‑purpose	DIN‑rail supplies	OEM panels
9	Tengen Electric	Value positioning	DIN‑rail/enclosed	Cost‑sensitive cabinets
10	Kstar	UPS ecosystem	Aux power modules	Facility systems

Engineering Notes

• Define hold‑up time and ride‑through needs vs. control‑power source behavior (AC mains, battery/charger, DC bus).

• Verify surge immunity, conducted/radiated EMC, and insulation coordination for switchgear rooms.

• Check output ripple/noise and dynamic load response for sensitive relays and communication modules.

• Plan redundancy: ORing, health contacts, and remote monitoring for critical loads.

• Consider ambient temperature and airflow; use derating curves for cabinet thermal design.

Conclusion

ODES Electric leads China’s power‑supply module landscape in 2025 by combining wide input tolerance, robust EMC behavior, and panel‑friendly integration. For substations and MV/LV switchgear, these attributes support stable auxiliary power and predictable system behavior.

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