NOARK · UL 489 Molded Case Switch, 100–1200A
Product overview
Original NOARK Ex9MD UL 489 molded-case switches in M1D–M6D frames. Select the documented lug-terminal frame, poles and current for a coordinated disconnect assembly.
Technical selection summary
| Manufacturer / series | Original NOARK Ex9MD |
|---|---|
| Standards | UL 489 Listed, file E355396; CSA C22.2 No.5; IEC/EN 60947-2 |
| Rated current | 100–1200A across six frames; exact values depend on frame and poles |
| Voltage | Up to 600Vac; DC use is frame/pole dependent and must follow the exact manufacturer rating table |
| Poles | Documented 2P/3P/4P lug-terminal versions; availability depends on frame |
| Protection duty | Disconnect / switching function with instantaneous trip capability; no thermal overload protection |
| 480Vac withstand classes | M1D–M5D: 65kA; H versions: 100kA; M6D: 65kA; apply the specified upstream protective device |
| Terminals | Catalogue lug line/load versions only; busbar-only codes marked unavailable by the manufacturer are not offered |
A molded-case switch is not a branch-circuit overcurrent protective device. Withstand ratings apply with the coordinated upstream fuse or breaker, as stated in the catalogue. Do not transfer AC ratings to DC or extend a 3-pole DC rating to another pole arrangement.
Typical applications
- Power-circuit disconnecting and emergency-off assemblies with coordinated upstream protection.
- Industrial panels requiring a molded-case switch with the documented voltage, pole arrangement and withstand duty.
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 Ex9MD catalogue (PDF)
Product reference images and drawings
