Download E-T-A REF 16-S (word file)

October 2012
G1009/ETA
New E-T-A electronic circuit protector saves space and
installation time
E-T-A Circuit Breakers, quality designer and manufacturer of a broad range of electromechanical and electronic products for circuit protection, has introduced a new electronic
circuit protector providing active current limitation for selective protection of load circuits
powered by 24V DC power supplies in industrial and building automation applications.
The new E-T-A REF 16-S is a single pole overcurrent circuit protector with a purely
electronic trip characteristic taking up just 12.5mm width in a control cabinet. Like the
recently introduced E-T-A 2216 it fits the E-T-A 80plus and 81plus sockets, reducing
wiring and installation time. Type REF16-S allows a cost-optimised integration of
overcurrent protection into a compact decentralised control cabinet.
Like the recently introduced E-T-A 2216, the E-T-A REF16-S has specifically been
designed for side-by-side, snap-in installation in new E-T-A rail-mountable sockets - the
80plus (with screwless PT connecting terminals) or the 81plus (with screw terminals). The
sockets allow time-saving power distribution and signalling by means of plug-in type
jumpers. In addition, coding pins ensure ease of allocation between breaker and socket
according to the “lock-and-key principle”. The dimensions of type REF16-S with socket
meet the requirements of the DIN 43880 standard (built-in equipment for electrical
installation).
Selective load protection by the E-T-A REF16-S is available in current ratings 1A, 2A, 3A,
4A and 6A and it only disconnects the faulty path in the event of an overload or short
circuit in the load circuit without any repercussions on the 24V DC supply. Thus voltage
dips are prevented in the event of a failure in one single circuit, without leading to a failure
of all loads connected to the switch-mode power supply.
Type REF16-S limits the short circuit current to typically 1.25 times rated current and
disconnects the faulty path after 800ms at the latest. However, inrush current peaks or
peaks during normal operation will be tolerated. It is therefore no problem to switch
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G1009/ETA
capacitive loads up to 20,000µF. In the event of an overload the integral power MOSFET
disconnects promptly from 1.25 times rated current.
A multi-coloured LED provides visual status and failure indications. Signalling can
optionally be made available by an integral short-circuit-proof status output or auxiliary
contacts. Remote operation is also possible via a remote reset signal or a remote control
signal ON/OFF. The manual ON/OFF button on the device allows intentional start-up of
individual load circuits.
www.e-t-a.co.uk offers further information on E-T-A and its products.
- ENDS Notes to editor
E-T-A designs and manufactures a broad range of electro-mechanical and electronic
products for circuit protection, control and instrumentation, including the world’s largest
range of circuit breakers for equipment (CBEs). E-T-A equipment is specified and
installed by a wide variety of industrial OEMs and end-users, with key markets including
air, sea and land transport, process control, computers and communications, medical
equipment, domestic appliances, machine tools and robotics.
E-T-A is an international company with headquarters in Altdorf, Germany and production
facilities in several other countries, together with marketing, sales and technical
operations throughout the industrial world. Its European, North American and Far Eastern
markets are served by some 1,300 employees.
The World Wide Web site www.e-t-a.co.uk offers further information on E-T-A and its
products.
Press enquiries:
Terry Hilder, Pathway PR
Surrey Technology Centre, 40 Occam Road, Guildford, Surrey GU2 7YG, UK.
Tel: 0845 472 6749. M: 07939 067453 e-mail: [email protected]
Reader enquiries:
Gillian Dennis, E-T-A Circuit Breakers Ltd
Telford Close, Aylesbury, Bucks. HP19 8DG, UK.
Tel: 01296 745154. Fax: 01296 488497. e-mail: [email protected]
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