• Compliant with EN 50155, EN 50121-3-2
• Class I equipment
• Input over- and undervoltage lockout
• Adjustable output voltage with remote on/off

Article number	CK1301-9ERB1
Available stock	1
Manufacturer	Bel Power (Melcher)
Type	DC/DC
Input Voltage	28 – 140VDC
Output voltage	12V
Output current	12A
Total power	144W
Op. temperature	-40 / +71°C
Size	171×47.2x111mm
Weight	1.2kg
Efficiency	82%
Formfactor	Casette
Application	Railway
Specials	Cooling plate, EN60950, EN50155

The K Series of DC-DC and AC-DC converters represents a broad and flexible range of power supplies for use in advanced electronic systems. Features include high efficiency, high reliability, low output voltage noise and excellent dynamic response to load/line changes. LK models can be powered by DC or AC with a wide-input frequency range (without PFC).
The converter inputs are protected against surges and transients. An input over- and undervoltage lockout circuitry disables the outputs, if the input voltage is outside of the specified range. Certain types include an inrush current limiter preventing circuit breakers and fuses from tripping at switch-on.
All outputs are open- and short-circuit proof, and are protected against overvoltages by means of built-in suppressor diodes. The output can be inhibited by a logic signal applied to pin 18 (i). The inhibit function is not used, pin 18 must be connected with pin 14 to enable the outputs.
LED indicators display the status of the converter and allow for visual monitoring of the system at any time. Full input-to-output, input-to-case, output-to-case, and output to output isolation is provided. The converters are designed, built, and safety-approved to the international safety standards IEC/EN 62368-1. They are particulary suitable for railway applications and comply with EN 50155 and EN 50121-3-2.
The case design allows operation at nominal load up to 71 °C with natural cooling. If forced cooling is provided, the ambient temperature may exceed 71 °C, but the case temperature must remain below 95 °C.
A temperature sensor generates an inhibit signal, which disables the outputs when the case temperatureTC exceeds the limit. The outputs are automatically re-enabled, when the temperature drops below the limit.