MCCBs & Circuit Protection Products (NY)
NY brand circuit-protection products supplied from Yueqing, including thermal-magnetic and electronic trip-unit options. Ratings, standards information and available documents are checked against the specific model.
NY Product Groups
MCCBs plus automatic changeover switches and remote-operation products.
STM6LY
STM6LE
STM6EY
STM7E
Which STM Series Fits Your Project?
| Series | Type | Typical Models | Best For |
|---|---|---|---|
| STM6 / STM6E | Thermal-magnetic / Electronic | STM6, STM6E, STMRT-1250 | Distribution & motor protection |
| STM6L | Residual current | STM6LY, STM6LE-250, STM7LE-250 | Earth-leakage safety |
| STM6E-LC | Metering intelligent | STM6EY, STM6EY-250MP3 | Utility & energy metering |
| STM6Z | IoT smart | STM6ZY-250M, STM6ZY-400MP | Smart grids & automation |
| STM7 | New energy / PV | STM7-320, STM7DC-630 | Solar & energy storage |
| STM7E | Phase changeover | STM7E-125, STM7E-250 ZB | Grid quality management |
| ECB / DC6 | Prepayment / IoT module | ECB-250, DC6 | Utility & remote retrofit |
Not sure which one you need? Read the MCCB selection guide or ask our engineers.
Why Source NY Circuit Protection
Yueqing-Based Supply
Local coordination for model selection, samples, order details and supplier-side questions.
Model-Matched Documents
We confirm which specifications and compliance files are available for the exact requested model before order.
OEM / ODM Review
Branding, color and packaging options may be available, subject to model, quantity and project review.
Full Accessory Range
Shunt trips, undervoltage releases, auxiliary & alarm contacts, motor operators, rotary handles.
Custom Settings
Adjustable thermal ratings and trip curves to match your protection coordination scheme.
Lead-Time Confirmation
Availability, sample timing and order lead time are stated in the quotation for the model you select.