ESX10-TC-114-DC12V-2A ETA Electronic circuit breaker

The ESX10-TC unit expands the product group "Electronic Overcurrent Protection" for DC 12 V applications.
It selectively protects all DC 12 V load circuits with a width of only 12.5 mm. This is achieved by a combination of active electronic current limiting in the event of a short circuit and an overload cut-off from 1.1 x IN. The ESX10-TC can be snapped directly onto the top-hat rail and thus offers fast and flexible mounting for groups of units with several circuits.

DC 12 V switched-mode power supplies are very often used in automation technology, e.g. in engine test benches. In case of overload, however, they regulate the output voltage that is to supply all connected loads. If a fault occurs in a single load in the system, the voltage also drops in all other load circuits.

This often results not only in an undefined fault condition, but even in a standstill of the machine or system.
This is exactly where the ESX10-TC intervenes by reacting to the overload condition faster than the switching power supply. 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 rated current is available in fixed values of 1 A...10 A at DC 12 V. Operating and error states are indicated by a multi-coloured LED and an integrated short-circuit-proof status output. 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-TC 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-TC is reactivated by an electronic reset signal or manually by pressing the ON/OFF switch directly on the unit.

Key features:

• selective load protection, electronic switch-off characteristic
• Active current limitation when switching on capacitive loads up to 75,000 μF and in case of overload/short circuit
• Rated current selectable in fixed amperages 1 A...10 A at DC 12 V
• Safe overload cut-off from 1.1 x IN even with long load lines or low line cross-sections
• Manual on/off switch (S1)
• Control input IN+ for remote ON/OFF signal (option)
• Clear signalling by LED, status output SF
• Electronic reset input RE (option)
• Integrated fail-safe element, adapted to the rated current
• Construction width per channel only 12.5 mm
• For direct top-hat rail mounting
• Simple wiring via supply rail LINE+ and 0 V
• Additional versions with ATEX approval available
• Marking: II 3G Ex nA IIB T4 Gc X ESX10-TC-...-E

Technical data:

Approvals: