Electronic circuit protector ESX10-Sxxx-DC24V-1A-10A Description The model ESX10-Sxxx extends our product group of electronic overcurrent protection devices for DC 24 V applications. At a width of only 12.5mm it provides selective protection for all DC 24 V load circuits. This is achieved by a combination of active elec- tronic current limitation in the event of a short circuit and overload disconnection typically from 1.2 times rated current. The ESX10-S is a plug-in type and thus allows quick and easy installation for groups of devices with several circuits on the power distribution systems Module 17plus and SVSxx. DC 24 V switch-mode power supplies are widely used in automation today. In the event of an overload, however, they turn down the output voltage which is intended to power all connected loads. So if there is a failure in a single load of the system, the supply voltage will break down also in all other load circuits. Not only does this frequently cause ESX10-S undefined fault conditions, but it can even lead to machine stoppages or system downtimes. Technical data (T = 25 C, U = DC 24 V) amb B This is exactly where the ESX10-S comes in by responding to the overload conditions faster than the switch-mode power supply. The Operating data max. possible overcurrent is limited to typically 1.4 times rated current Operating voltage U DC 24 V (18...32 V) B (see table 1). This allows switching on capacitive loads of up to 20,000 F, but a disconnection will only be effected in the event of an over- Current ratings I adjustable ratings: N load or short circuit. For adjustment to the load conditions the current 1 A through 10 A in 1 A steps rating can be selected by means of a rotary switch from 1A to 10A. Standby current I in ON condition: 0 Status and failure indication is by means of a multi-coloured LED, an typically 25 mA with version -103/-115/-125 integral short circuit proof status output (single or group alarms) or via typically 20 mA with version -114/-117/- a potential-free relay contact (change-over contact). Remote actua- 124/-127 tion is possible via a remote reset signal. The manual ON/OFF switch Visual status multicoloured LED: on the device itself allows start-up of certain individual load circuits. indication green: As soon as the ESX10-S detects overload or short circuit in its load - load circuit connected circuit, it blocks the load output transistor and disconnects the current flashing (green/yellow): flow in the faulty circuit. After remedy of the failure, the load output of - load current warning limit reached 80% the ESX10-S is re-activated by an electronic reset signal or manually yellow: by actuating the ON/OFF switch on the device. - overload or short circuit until disconnection US patent number: US 6,490,141 B2 red: - after disconnection due to overload, 4 short circuit or temperature Features and Benefits - after undervoltage disconnection in ON condition of operating voltage with auto- l Selective load protection, electronic trip curve matic reset l All types of loads can be connected (DC 24 V motors upon flashing (red/OFF): request) - upon changed rating adjustment l Active current limitation when switching on capacitive loads OFF: up to min. 20,000 F and in case of overload/short circuit - devices switched off via l Whole-number adjustable current ratings from 1A to 10 A ON/OFF switch by means of rotary switch - no operating voltage with ON/OFF l switch in ON condition Reliable overload disconnection typically from 1.2 x I even with N long load lines or small cable cross sections Load circuit l Manuel ON/OFF switch (S1) Load output power MOSFET switching output l Clear status indication by means of LED, electronic status output (plus switching) SF or signal output F (potential-free auxiliary contact) Load current typically 0.8 x I N l Electronic reset input RE, control input IN warning limit (I ) Limit l Integral fail-safe-element hysteresis typically 5% l Width per channel only 12.5 mm Overload disconnection typically 1.2 x I (1.05...1.35 x I ) N N l Plug-in type mounting on power distribution system Module (I ) (see time/current characteristic) OL 17plus and SVSxx. Short circuit current (I ) active current limitation with I = SC SC typically 2.5 x I , 1 A N typically 1.4 x I , 2 A -10 A N Approvals (see time/current characteristic) Trip times at overload disconnection (I ) = typ. 3 s OL Authority Standard Rated voltage Current ratings at short circuit current (I ) = typically 0.1 s SC (see time/current characteristic) UL UL 2367 DC 24 V 1...10 A Temperature internal temperature monitoring with UL UL 508 DC 24 V 1...10 A monitoring electronic disconnection C22.2 No 14 disconnection typically +100 C hysteresis typically 10 C Operating voltage OFF at typically U < 16.0 V B monitoring with regard ON at typically U > 17.5 V B to low voltage with automatic ON and OFF switching 1646 www.e-t-a.de 1Electronic circuit protector ESX10-Sxxx-DC24V-1A-10A Electronic circuit protector ESX10-Sxxx-DC24V-1A-10A Technical data (T = 25 C, U = DC 24 V) Technical data (T = 25 C, U = DC 24 V) amb B amb B Switch-on delay t typically 0.1 s Reset input RE ESX10-124/-125/-S127 Start - after each ON operation, reset and after Electrical data voltage max. + DC 32 V applying of U B high > DC 8 V DC 32 V low DC 3 V > 0 V - during switch-on delay the load cir cuit is current consumption disconnected. typically 2.6 mA (+ DC 24 V) Disconnection of - manually on the device with the RESET pulse / edge from low > load circuit ON/OFF switch (OFF) 100 ms on high > 100 ms - after disconnection due to overload Reset signal RE By means of the r eset signal the or short circuit electronically locked ESX10-S124/- - temporarily at undervoltage S125/-S127 can be remotely reset via - at excess temperature of the device an external momentary switch or via - upon changed rating adjustment the PLC. A joint reset signal can also - at no operating voltage be applied to more than one device at a Leakage current in load typically < 1 mA time. Devices in ON condition will remain circuit in the OFF condition unaffected. Capacitive loads min. 20,000 F Signal output F ESX10-S103 Free-wheeling diode exter nal free-wheeling diode Electrical data potential-fr ee auxiliary change-over recommended for inductive load contact max. DC 30 V / 0.5 A min. Parallel connection of 10 V / 10 mA several load outputs not allowed Standard condition: SC/SO (13/14) closed Status output SF ESX10-S114 / -S124 SC-SI (13/12) open Electrical data plus switching signal output, load output connected through connects U to terminal SF B Fault condition: SC/SO (13/14) open Rated data: DC 24 V / max. 0.2 A (short SC-SI (13/12) closed circuit proof) The status output is connected load output locked internally with a 10 kOhm resistor against 0 V Signal output F ESX10-S115 / -S125 Status OUT (-S114/-S124) ESX10-S114/-S124 (Signal Status OUT), Electrical data potential-fr ee auxiliary make contact at UB = + 24 V max. DC 30 V / 0.5 A min. 10 V / 10 mA Normal condition: + 24 V S1 is ON, load output connected Normal condition: SC/SO (13/14) closed Fault condition: 0 V S1 is ON, load output blocked load output connected or in the event of manual dis- Fault condition: SC/SO (13/14) open connection (S1 is OFF) red LED load output locked lighted 0 V no operating voltage U General Characteristics B Status output SF ESX10-S117/-S127 Fail-safe-element integral fail-safe-element 15 A Max. rupture capacity of the element is Electrical data plus switching signal output, 4 300 A at 24 V DC connects U to terminal SF B Rated data: DC 24 V / max. 0.2 A Terminals LINE+ / LOAD+ / 0V / (RE / IN+ / SF) or (short circuit proof) (SC / SO / SI) The status output is locked internally Blade terminals 6.3 mm to EN60934-6.3-0.8 with a 10 kOhm resistor Housing material moulded against 0 V. Mounting method plug-in type onto Module 17plus Status OUT (-S117/-S127) ESX10-S117/-S127 (Signal Status OUT and SVSxx inverted), at U = + 24 V B Ambient temperature 0...+50 C (without condensation, Standard condition: 0 V ON/OFF switch is ON, load cf. EN 60204-1) output connected through Storage temperature -40...+70 C Fault condition: + 24 V ON/OFF switch is ON, load output locked Humidity 96 hrs / 95% RH 40C to IEC 60068-2-78-Cab or climate class 3K3 to EN 60721 with manual disconnection ON/OFF switch is OFF Vibration 3g test to IEC 60068-2-6, test Fc , 0 V no operating voltage U Degree of protection IEC 60529, DIN VDE 0470) B operating area IP30 Control input IN+ ESX10-S114 / -S115 / -S117 terminal area IP00 Electrical data voltage max. DC 32 V EMC requirements emission: EN 61000-6-3 High> DC 8 V < DC 32 V (EMC directive, CE logo) susceptibility: EN 61000-6-2 Low < DC 3 V > 0 V Current consumption typically 2.6 mA Insulation co-ordination 0.5 kV / pollution degree 2 (DC 24 V) (IEC 60934) reinforced insulation in operating area Control input IN+ +24 V level (HIGH): device is switched on Dielectric strength max. DC 30 V (load circuit) by a remote ON/OFF signal. Insulation resistance n/a, only electronic disconnection 0 V level (LOW) device is switched off by (OFF condition) a remote ON/OFF signal. Approvals CE logo Switch S1 ON/OFF device can only be switched on when a UL 2367, File E306740, HIGH level is applied to IN+ Solid State Overcurrent Protectors Reset function a blocked load output (blocked by overload/ UL 508, File E322549 short circuit) can externally be reset by the Dimensions (w x h x d) 12.5 x 70 x 60 mm (tolerances to control input For this purpose the control DIN ISO 286 part 1 IT13) input has be switched off for at least 100 ms Mass approx. 40 g and switched on again afterwards. 2 www.e-t-a.de 1646