REX12D Datasheet, PDF (1/6 Pages) ETAL Group – Control, diagnosis and monitoring via IO link

Electronic circuit protector REX12D
Description
The requirements regarding modern machinery and equipment are
constantly growing. System transparency, remote maintenance and
remote access are getting more and more important in international
competition. Early notification in the event of any disturbances and
a fast response to current problems will increase system availability,
save costs and improve the overall stability of the production process.
E-T-A provides the ideal solution for machine and panel builders with
the intelligent protection system comprising the REX12D-T circuit
protector and the EM12D interface module. The system combines
the well-proven quality of DC24V overcurrent protection with the
communication options of the IO link system. It allows complete
transparency of the DC24V power supply and provides all necessary
information for a reliable production process in this sector.
The 12.5 mm wide modules feature push-in technology for wiring
with press release buttons and allow no-tool time-saving and mainte-
nance-free wiring. The supply module is designed for DC 24 V and 40
A and accommodates max. 10 mm² with wire end ferrule as a plus (+)
supply. On the load output side the circuit protector can be wired
with 2.5 mm². It is exactly tailored to the needs of machine and panel
builders. And what is more: no additional accessories are required when
connecting the individual components electrically and mechanically.
This helps save time and money!
Features
Technical data (T_amb = +23 °C, U_B = DC 24 V)
REX12D-TAx-xxx circuit protectors
REX12D-TA1-100-DC24V-xA
REX12D-TA2-100-DC24V-xA/xA
1-channel
2-channel
Operating voltage U_B
Closed-circuit current I₀
REX12D-TA1 1-channel
REX12D-TA2 2-channel
DC 24 V (18...30 V)
in ON condition: typically 7 mA
in ON condition: typically 10 mA
Reverse polarity protection yes
l Control, diagnosis and monitoring via IO link
l Combination of supply module and electronic circuit protector
l Double channel selective load protection by means of electronic
trip curve
l No accessories required for connecting the components
l Width per channel only 6.25 mm (2-channel)
l Fixed current ratings from 2 A, 4 A, 6 A, 8 A and 10 A
l Integral fail-safe element, adjusted to current rating
l Switching capacitive loads up to 20,000 µF
l Manual ON/OFF/reset momentary switch
l Connection via push-in terminals including press release buttons
Benefits
Power failure buffering time up to 10 ms
Current ratings I_N
REX12D-TA1
fixed ratings:
8 A, 10 A
REX12D-TA2
2 A / 2 A, 4 A / 4 A, 6 A / 6 A
current ratings
Visual status indication green:
by LED
load circuit connected

green/orange

blinking:
load current warning limit

reached 50 % – 100 %

orange:
- overload reached, switch-off
delay depending on the load
current, active for max. 3 s
l Increases machine availability through high transparency and
remote diagnosis
l Saves cost – no further accessories equired
l S aves time through innovative and flexible mounting and

- circuit protector was
switched off by the
superordinate control unit,
LED is permanently orange
connection technology

red:
- after disconnection due to
l S aves space – with a width of only 6.25 mm per channel (2-channel)
overload or short circuit
l P rovides flexibility through ease of mounting, disassembly and
modular design

- a fter undervoltage release
of operating voltage in ON
condition with autoreset
Approvals and standards

OFF: Device was switched off via
Approval Standard
authority
Rated
voltage
Current
rating range
ON/OFF momentary switch,
or due to lacking operating
voltage or faulty initialisation
UL
UL 2367
DC 24 V 2 A…10 A
of the circuit protector
UL
UL60947 / cULus508listed DC 24 V 2 A…10 A
Load circuit
under preparation
Load output
power MOSFET switching output

(plus switching)
Load current warning limit typically 0.5 - 1.0 x I_N (parameterisable)
7
(I_WLimit)
hysteresis
typically 5 %
Overload current
disconnection (I_OL)
with trip times (t_OL)

short circuit
trip time (t_SC)

typically I_OL: I_N x 1.05
t_OL: 3s
typically I_OL: I_N x 1.35
t_OL: 0.5,5s
typically I_OL: I_N x 2.00
t_OL: 0.1s
typically I_OL: I_N x 2.50
t_OL: 0.012 s
typically at short circuit (I_SC) t_SC: 0.002 s¹⁾
see time/current characteristic
1) _{depending on the power source}
1646
www.e-t-a.de
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