Electronic circuit protector REX12
Description
The new electronic overcurrent protection REX12 consists of the
supply module EM12-T and the single or double channel electronic
circuit protector REX12-T which allows modular side-by-side mounting.
The modules with a width of only 12.5 mm feature push-in
technology including press release buttons and allow time-saving and
maintenance-free wiring without tools. 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.
The new generation of electronic overcurrent protection REX12
combines flexibility with a compact design. 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
= +23 °C, U = DC 24 V)
amb B
REX12-TAx-xxx circuit protectors
REX12-TA1-107-DC24V-xA
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Combination of supply module and electronic circuit protector
Single and double channel selective load protection by means of
electronic trip curve
1-channel
2-channel
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REX12-TA2-107-DC24V-xA/xA
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Operating voltage UB
DC 24 V (18...30 V)
No accessories required for connecting the components
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Width per channel only 12.5 mm (1-channel) or
Closed-circuit current I0
REX12-TA1 1-channel
REX12-TA2 2-channel
6.25 mm (2-channel)
Fixed current ratings from 1 A to 10 A
in ON condition
in ON condition
typically 5 mA
typically 8 mA
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Integral fail-safe element, adjusted to current rating
Switching capacitive loads up to 20,000 µF
Manual ON/OFF/reset momentary switch
Clear status indication by means of LED and signal contact Si
Reverse polarity
protection
yes
Power failure
buffering time
up to 10 ms
fixed ratings:
1 A, 2 A, 3 A, 4 A, 6 A, 8 A, 10 A
2 A / 2 A, 4 A / 4 A, 6 A / 6 A
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Connection via push-in terminals including orange press release
Current ratings IN
REX12-TA1
REX12-TA2
buttons
Visual status indication
green:
load circuit connected
Benefits
by LED
green/orange blinking:
4
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load current warning limit reached 80 %
Saves cost – no further accessories required
Saves time through innovative and flexible mounting and
connection technology
Saves space – with a width of only 12.5 mm for two channels
Provides flexibility through ease of mounting, disassembly and
modular design
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orange: overload or short circuit until
disconnection
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red:
- after disconnection due to
overload or short circuit
- after undervoltage release
of operating voltage in ON
condition with autoreset
Device switched off by means
of ON/OFF momentary switch
or no operating voltage
Approvals and standards
OFF:
Approval
authority
Standard
Rated
Current
voltage
rating range
Load circuit
UL
UL
UL 2367
DC 24 V
1 A…10 A
1 A…10 A
Load output
power MOSFET switching output
(plus switching)
UL60947 / cULus508listed DC 24 V
under preparation
Load current
typically 0.8 x IN
warning limit (IWLimit
hysteresis
)
typically 5 %
Overview of ordering number codes
Overload current
disconnection (IOL
with trip times (tOL
typically IOL: IN x 1.05
typically IOL: IN x 1.35
typically IOL: IN x 2.00
typically IOL: IN x 2.50
tOL: 3s
)
)
tOL: 0,5 s
tOL: 0.1 s
tOL: 0.012 s
Supply module
EM12-T01-001-DC24V-40A
REX12-TA1-107-DC24V-1A
REX12-TA1-107-DC24V-2A
REX12-TA1-107-DC24V-3A
REX12-TA1-107-DC24V-4A
REX12-TA1-107-DC24V-6A
REX12-TA1-107-DC24V-8A
REX12-TA1-107-DC24V-10A
circuit protectors:
1-channel
Short circuit
typically at short circuti (ISC) tSC: 0,002 s1)
(see time/current characteristic)
1) depends on the power suplly
trip time (tSC
)
Influence of ambient
temperature on
overload disconnection
see temperature factor table
and load current warning limit
circuit protectors:
2-channel
REX12-TA2-107-DC24V-2A/2A
REX12-TA2-107-DC24V-4A/4A
REX12-TA2-107-DC24V-6A/6A
1646
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