EM12-T01-001-DC24V-40A

REX12 Electronic Circuit Protector Description The compact and flexible all-in-one solution REX consists of several perfectly matched components. It comprises the EM12-T supply module for the plus and minus potential via a single or double channel REX12-T electronic circuit protector which can be mounted side by side in any number and the PM12-T potential extension module for plus and minus multiplication. Connection of the only 12.5 mm wide modules is exclusively with push-in terminals which allow no-tool time-saving wiring. Depending on the requirement, up to 16 circuit protectors can be placed on the symmetrical rail and are electrically connected by means of built-in connector system - no further accessories required. The circuit protector REX12-T offers selective overcurrent protection by responding to short circuit or overload faster than the switch mode power supply. Capacitive loads of up to 20,000 µF can be switched on without problems. The circuit protectors are available in all standard current ratings from 1 A to 10 A. Besides the UL508listed approval and NEC Class2, the REX12-T also meets the requirements of cable protection to EN60204-1. Benefits l l Features l l l l l l l l l l l Combination of supply modules, overcurrent protection and power distribution Single and double channel selective load protection by means of electronic trip curve No accessories required for connecting the components Width per channel only 12.5 mm (1-channel) or 6.25 mm (2-channel) Fixed current ratings from 1 A to 10 A 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 Connection via push-in terminals including orange press release buttons l Saves cost – no further accessories required Saves 50 % time through innovative and flexible mounting and connection technology Saves space – with a width of only 12,5 mm per channel Provides flexibility through ease of mounting, disassembly and modular design 4 Preferred types – a short explanation. For more details on all configurations please see ordering number code on page 3 Preferred types are E-T-A products most frequently used by our customers. We manufacture our preferred types in substantial quantities. At the same time our preferred types are supplied at shorter lead times than non-standard versions. Preferred types preferred types short description REX12-TA1 1-channel REX12-TA1-107-DC24VREX12-TA2 2-channel preferred ratings (A) 2 4 6 10 x x x x 2 4 6 10 REX12-TA2-107-DC24V- Approval logos and markings 2/2 4/4 6/6 2/2 4/4 6/6 x x x Data sheet The current data sheet is available on our website: www.e-t-a.de/d359 NEC Class2 1802 www.e-t-a.de 1 REX12 Electronic Circuit Protector Technical data (Tamb = +23 °C, UB = DC 24 V) REX12-TAx-xxx circuit protectors REX12-TA1-107-DC24V-xA 1-channel REX12-TA2-107-DC24V-xA/xA 2-channel Operating voltage UB DC 24 V (18...30 V) Closed-circuit current I0 REX12-TA1 1-channel in ON condition typically 5 mA REX12-TA2 2-channel in ON condition typically 8 mA Reverse polarity protection yes Power failure buffering time up to 10 ms Current ratings IN fixed ratings: REX12-TA1 current ratings 1 A, 2 A, 3 A, 4 A, 6 A, 8 A, 10 A REX12-TA2 current ratings 1 A/1 A, 2 A/2 A, 3 A/3 A, 4 A/4 A, 6 A/6 A Visual status indication green: load circuit connected by LED green/orange blinking: load current warning limit reached 90 % orange: overload or short circuit until disconnection red: 4 Load circuit Load output Load current warning limit (IWLimit) hysteresis - after disconnection due to overload or short circuit - after undervoltage release of operating voltage in ON condition with autoreset OFF: device switched off by means of ON/OFF momentary switch or no operating voltage power MOSFET switching output (plus switching) typically 0.9 x IN typically 5 % Overload current typically IOL: IN x 1.05 tOL: 3s typically IOL: IN x 1.35 tOL: 0,5s disconnection (IOL) with trip times (tOL) typically IOL: IN x 2.00 tOL: 0.1s typically IOL: IN x 2.50 tOL: 0.012 s short circuit typically at short circuit (ISC) tSC: 0.002 s1) trip time (tSC) see time/current characteristic 1) depending on the power source  Note: Selection of current rating of the circuit protector ≤ rating of power supply Influence of ambient see temperature factor table temperature on overload disconnection and load current warning limit Continuous Current IC typically 0.8 x IN (Fail Safe Element is protected by REX12) Fail-safe element IN: 1 A fail-safe IN: 1 A integral IN: 2 A fail-safe IN: 2 A blade fuse IN: 3 A fail-safe IN: 3.15 A adjusted to IN: 3A-CL2 fail-safe IN: 4 A related current rating IN IN: 4 A fail-safe IN: 4 A IN: 4 A-CL2 fail-safe IN: 4 A IN: 6 A fail-safe IN: 6.3 A IN: 8 A fail-safe IN: 8 A IN: 10 A fail-safe IN: 10 A IN: 1 A/1 A fail-safe IN: 1 A/1 A IN: 2 A/2 A fail-safe IN: 2 A/2 A IN: 3 A/3 A fail-safe IN: 3.15A/3.15A IN: 3 A/3 A-CL2 fail-safe IN: 4 A/4 A IN: 4 A/4 A fail-safe IN: 4 A/4 A IN: 4 A/4 A-CL2 fail-safe IN: 4 A/4 A IN: 6 A/6 A fail-safe IN: 6.3 A/6.3 A 2 Technical data (Tamb = +23 °C, UB = DC 24 V) Voltage drop in load circuit at IN and at IN 70 % between LINE+ and LOAD+ IN: 1 A typically 180 mV IN: 70 % typically 125 mV IN: 2 A typically 110 mV IN: 70 % typically 80 mV IN: 3 A typically 120 mV IN: 70 % typically 85 mV IN: 3A-CL2 typically 130 mV IN: 70 % typically 90 mV IN: 4 A typically 115 mV IN: 70 % typically 80 mV IN: 4A-CL2 typically 180 mV IN: 70 % typically 120 mV IN: 6 A typically 170 mV IN: 70 % typically 110 mV IN: 8 A typically 160 mV IN: 70 % typically 105 mV IN: 10 A typically 180 mV IN: 70 % typically 120 mV Operating voltage OFF at typically UB < 16.0 V monitoring ON at typically UB > 19.0 V with regard to low voltage hysteresis typically 2 V with automatic ON and OFF switching Switch-on delay - with power ON channel 1: typically 100 ms channel 2: typically 200 ms - when switching on via channel 1: typically 5 ms ON/OFF momentary switch or channel 2: typically 100 ms - after undervoltage channel 1: typically 5 ms channel 2: typically 5 ms Disconnection of load - manually on the device with the circuit ON/OFF momentary switch - after an overload / short circuit disconnection with storage (no automatic reset) - temporarily at undervoltage - at no operating voltage Switch-on of load circuit - momentary switch device can only be switched on when ON/OFF operating voltage is applied - applying The device starts up with the condition operating voltage last stored. Reset function  A blocked load output (blocked by overload / short circuit) can externally be reset by the ON/OFF momentary switch Leakage current in load typically