NOARK · UL 489 MCCB, 800Vac, 100–400A
Product overview
Original NOARK Ex9MHV UL 489 high-voltage AC molded-case circuit breakers. Select M2HV or M3HV, S/N breaking class and the supported current for AC800V distribution.
Technical selection summary
| Manufacturer / series | Original NOARK Ex9MHV |
|---|---|
| Standard | UL 489; 3-pole thermal-magnetic MCCB |
| Published current options | M2HV lug: 100–250A; M3HV lug: 250–400A; discrete catalogue currents |
| Interrupting capacity at 800Vac | S: 35kA; N: 50kA |
| Interrupting capacity at 600Vac | S: 50kA; N: 85kA |
| Connection | Lug line/load terminals; 3P |
| Trip unit | Thermal-magnetic; confirm setting range and coordination for the exact frame |
Published options follow the corrected current column and exact order codes in the current Essential Components catalogue. The older MCCB catalogue contains mismatched current labels in its M3HV table. This page offers the tabulated lug-terminal versions; other terminal forms and M2HV 60/80A versions need separate confirmation.
Typical applications
- Protection of AC800V feeders in suitably rated industrial distribution assemblies.
- High-voltage AC equipment circuits requiring the exact M2HV/M3HV current and interrupting class.
Specify your enquiry
For a focused quotation, include:
- Selected model, poles, current and all applicable configuration options.
- Actual system voltage, frequency, protection duty and required accessories.
- Quantity, installation conditions, destination and required product documentation.
Download NOARK Ex9MHV catalogue (PDF)
Download complete MCCB dimension and accessory catalogue (PDF)
Product reference images and drawings
