






YOMIN 4Jaws/4J 320A Single Phase Square Electric Meter Socket Box
The YOMIN 4-jaw meter socket box is a heavy-duty NEMA 3R enclosure for 320A single phase services. Rated 600V AC with a ringless 4-terminal jaw configuration, it is formed from 1.5mm (#16 gauge) galvanized steel (AISI G90) with an epoxy baked gray powder finish. A heavy duty tin lever bypass, tin plated copper jaws, lay-in terminals with pressure plates and convenient side, back and bottom knockouts support both overhead and underground feeds.
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Technical Specifications
| Model Number | YM-320-4J |
|---|---|
| Type | Meter Socket Box (Electric Meter Base) |
| Phase | Single Phase |
| Rated Current | 320A |
| Rated Voltage | 600V AC |
| Jaws / Terminals | 4-jaw, ringless |
| Bypass | Heavy duty tin lever |
| Enclosure | NEMA 3R |
| Material | Galvanized Steel (AISI G90), 1.5mm |
| Finish | Epoxy baked gray powder |
| Feed | Overhead / Underground |
| Application | Residential / General-Purpose |
| Dimensions | 716 x 332 x 132mm |
| Color | Grey |
| Brand Name | YOMIN |
| Place of Origin | Zhejiang, China |
Applications
- Residential & commercial installations
- Industrial power systems
- Energy monitoring & management
- OEM / ODM production
- Export & utility projects
Why Choose Yomin Electric
Zhejiang Yomin Electric Co., Ltd. is a factory-direct manufacturer of precision electrical products since 1996, trusted by buyers in 95+ countries. Every unit is tested before shipping.
- ISO 9001 & CE certified manufacturing
- Factory-direct competitive pricing
- Full OEM / ODM customization support
- Strict QC — every unit tested before shipment
- Fast export logistics to 95+ countries
- Responsive technical support team
Customer Reviews
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