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UKIVA Machine Vision Conference



Join us on 15 July 2021 on the MVC Technology Presentation Hub and explore eight online seminar theatres. (more)

PPMA Show 2021

NEC, Birmingham(B40 1NT)

28/09/2021 - 30/09/2021

PPMA Show 2021 will be the UK’s largest ever event dedicated to state-of-the-art processing and (more)

Southern Manufacturing

Farnborough, Hants(GU14 6TQ)

06/10/2021 - 07/10/2021

Southern Manufacturing and Electronics is the most comprehensive annual industrial exhibition in the (more)

Advanced Engineering 2021

NEC Birmingham(B40 1NT)

03/11/2021 - 04/11/2021

Join us in our 12th and most important edition to date, as we invite engineers and management from all (more)

Relec Electronics adds Cotek Systems’ SR-1600-Plus inverter series

Relec Electronics adds Cotek Systems’ SR-1600-Plus inverter series

The SR-1600-Plus Series of DC-AC inverters consists of 1600VA inverter modules for either 24V or 48V inputs, a bespoke 2U subrack and a system controller. There are also options for remote control and maintenance bypass switches.

The inverters have 89 - 91% efficiency in DC-AC mode and also provide line conditioning of the AC input supply, making them particularly suitable for use with modern IT systems where the incoming primary AC supply can be variable or non-sinusoidal, such as from a generator. Power factor is >0.99 and maximum AC efficiency is 95%.

The versatile SR-1600-Plus series can be used as a DC-AC inverter, where the input source is a DC or battery supply, and also as AC mode with DC back up with zero transfer time. The inverters can also power share between the AC and DC sources.

To ensure reliable operation, the SR-1600-Plus Series accepts a wide range of AC inputs (minimum ± 20%) and provide a regulated, adjustable AC output (±2%). The inverters can also split the load between the AC and DC input source. This is particularly suitable for renewable energy applications, where DC supply is not available all the time, or to take advantage of low tariff AC sources.

In addition to SNMP (simple network management protocol), an RS-485 Modbus port in the SR-1600-Plus rack allows users to control and monitor key parameters, such as voltage, output power, internal temperature and protection levels.

Although primarily designed for use with a bespoke 2U subrack, the SR-1600-Plus inverters may be used as standalone units. Blanking panels support unpopulated slots, which can be used for expansion at a later date, as required. Subracks can be supplied with the SN-1 Plus interface for Ethernet support, or CR-21 for programming at a local level.

The SR-2U2-Plus subrack can accommodate up to four SR-1600-Plus modules, providing between 1600VA and 6400VA outputs, with options for redundancy and upgrades. The overall system is scalable with up to eight subracks, or 32 modules connected in parallel capable of supplying up to 51.2kVA.

Each DC-AC inverter has a footprint of just 105 x 83 x 405 mm, operating from a 2U x 509 mm subrack. All units are 100% hot swappable in live systems for uninterrupted operation in sensitive systems during maintenance and system upgrades.


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