ESX10-125-DC24V-4A ETA Electronic circuit breaker

The ESX10 unit expands the "electronic overcurrent protection" product group for DC 24 V applications. With a width of only 12.5 mm, it selectively protects all DC 24 V load circuits. This is achieved by a combination of active electronic current limitation in the event of a short circuit and an overload cut-off from 1.1 x IN. In combination with the E-T-A power distributors Modul 17plus and SVSxx, the ESX10 offers fast, convenient and flexible installation. DC 24 V switched-mode power supplies are used very frequently in automation technology. However, in the event of an overload, they regulate the output voltage that is to supply all connected loads. So if a fault occurs in a single load in the system, the voltage also collapses in all other load circuits. Often, this results not only in an undefined fault condition, but even in a standstill of the machine or system. This is exactly where the ESX10 intervenes by reacting faster than the switching power supply to the overload condition. The maximum possible overcurrent is always limited to 1.3...1.8 times the selected rated current (see Table 1). This makes it possible to switch on capacitive loads up to 75,000 µF, but they are only switched off in the event of an overload or short circuit. For adaptation to the load conditions, the nominal current is available in fixed values of 0.5 A...12 A. Operating and fault states are indicated by a multi-coloured LED, an integrated short-circuit-proof status output or individual or group alarms. Remote operation is possible via a remote reset signal or a remote ON/OFF control signal. The manual ON/OFF switch directly on the unit allows targeted commissioning of individual load circuits. As soon as the ESX10 detects an overload or short circuit in its load circuit, it disables the load output transistor and thus interrupts the current flow in the faulty circuit. Once the fault has been rectified, the load output of the ESX10 is reactivated by an electronic reset signal or manually by pressing the ON/OFF switch directly on the unit.

Main features:

• Selective load protection, electronic shutdown characteristic l Active current limitation when switching on capacitive loads up to 75,000 µF and in the event of overload/short circuit
• Rated current selectable in fixed amperages 0.5 A...12 A
• Safe overload cut-off from 1.1 x IN even with long load lines or low line cross-sections (see Table 3)
• Manual ON/OFF switch (S1) l Control input IN+ for remote ON/OFF signal (option)
• Clear signalling by LED, status output SF or signal contact F (can be combined) l Electronic reset input RE (option)
• Integrated fail-safe element
• Width per channel only 12.5 mm
• Can be plugged into bayable power distribution module 17plus, optionally onto power distribution SVS02/SVS04 (see product group Power Distribution Systems)
• Additional versions with ATEX approval available Marking:

Technical data:

Approvals: