Description
Manufacturer | ABB |
Brand | ABB |
Series | module |
Part Number | CMA120 3DDE300400 |
Product Type | module |
Quality | 100% New Original |
Stock | In stock |
Delivery time | 1-3 days after Payment |
After-sales Service | Have |
Warranty | 1 year |
Shipping term | DHL / FEDEX/ EMS /UPS/TNT/EMS |
Packaging details: if you need an urgent delivery order, please feel free to contact us, and we will do our best to meet your needs.
Price problem: if you find that other suppliers offer cheaper prices for the same product, we are also willing to provide you with reference prices and give you further discounts.
The power supply units (SD83x) are switch-mode power converters that convert a.c.
mains supply voltage to a regulated 24 V d.c. The mains input supply voltage can
either be 115 V a.c. or 230 V a.c. and is selected using a switch, mounted on the
front panel of the unit.
The power supply units can be used in both redundant and non-redundant
applications. When redundant power supply units are connected to a common load,
a voting device, (SS823), must be used to combine the two outputs to a single
output, via diodes. The redundant power supply units may be connected to
completely separate mains supplies or to the same mains supply, depending on the
configuration selected.
The L- output (0 V) of the power supply units can be used without being grounded.
If grounding is required, the power supply unit L- output (0 V) can be grounded
directly or via a suitable resistor.
The processor unit has no requirement for an uninterruptible power supply in order
to shut down safely. The processor unit has an internal power reservoir that lasts for
5 ms, which is sufficient for it to make a controlled power down. The power supply
units easily handle short power interruptions (<20 ms) that can normally occur
within any industrial environment. Despite this, it is sometimes necessary to protect
certain applications, from brief voltage failures, by installing Uninterruptible Power
Supply (UPS) devices.