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100... 140W SINGLE OUTPUT DC/DC CONVERTERS PREMIUM CTS-120 SERIES

Features
  • Designed according to EN50155
  • Fire and smoke: EN45545-2 approved
  • High input-output isolation
  • Standard size Eurocard 3U
  • Adjustable output voltage
  • Input voltage OK LED
  • Output voltage presence LED
  • Remote inhibit
  • Option: remote sensing or alarm
  • Efficiency up to 89%

PREMIUM CTS-120 SERIES

Product Overview

The CTS-120 series consists of DC-DC converters, with a galvanic isolation between input and output. The converters operate at a fixed switching frequency and use push-pull converter topology.

There are two options to choose:

1 - With remote sensing

2 - With low output voltage alarm

For maximum regulation, the remote sensing terminals can be connected to the load. This will allow a power cable voltage drop of up to 0.3 V on each cable to be offset.

The device is protected against overload and short-circuits by means of a current limiting circuit. The device is also protected against reverse polarity input voltage, and the input fuse blows if an improper connection is made.

When a converter input undervoltage condition occurs, the converter is disabled, thus preventing the battery from becoming totally discharged.

Specifications

INPUT
Voltage range See selection table
Undervoltage shutdown 55% to 60% Vi nom
Max allowed input ripple 15% Vin nom (EN50155)
OUTPUT
Output Voltage See selection table.

Output voltage adjustment range:

Vimin>60% Vi nom

Vimin>70% Vi nom

 

-10 % ... +0 % Vo nom

-10 % ... +15 % Vo nom

Line regulation (Io = nom)

< 0,2 % (Io = nom) 

Load regulation (Vin = nom)

< 0,2 % (Vin = nom; Io: 0…100%)

Ripple

< 50 mVpp

Noise (BW = 20MHz)

< 100 mVpp

ENVIRONMENTAL

StorageTemperature

-40°C ... 85°C

Operating temperature range at Io= 100%  -25ºC ... 60ºC(-40°C … 60ºC, see note-1)
Operating temperature at 75% load -25ºC ... 70ºC(-40°C … 70ºC, see note-1)
Operating temperature at 37.5% load  -25ºC ... 85ºC(-40°C … 85ºC, see note-1)
Maximum Relative humidity 95% with no condensation
Shock and vibration EN61373 Category 1 class B body mounted
MTBF 500.000h @ 40°C according to IEC61709
EMC

Emission

EN50121-4, EN50121-3-2

Immunity

EN50121-4, EN50121-3-2

SAFETY

Safety

EN60950-1, EN62368-1, EN50155

Dielectric strength Input/Output

3000Vac, 4200Vdc 1min  

Dielectric strength Input / Earth

1500Vac, 2100Vdc 1min

Dielectric strength Output / Earth

1500Vac, 2100Vdc 1min

Fire and smoke

EN45545-2:2013 +A1:2015

MECHANICAL

Approximate weight

430g

Dimensions

100 x 160 x 38.5mm

CONTROL

Remote inhibit range

5V ... 24V

Remote sense (option)

< 0.3V per pole

Low output voltage alarm (option)

Threshold: 0.85…0.90 Vo nom. Open when alarm Isolated solid state relay: max.100mA, 160V

PROTECTIONS

Against overloads and short-circuits

Current limiting

Against reverse input voltage

Input fuse

Against input under-voltage

Under-voltage lock-out

Against Input over-currents

Input fuse

Note-1: The unit can start up and work at an ambient temperature of -40°C with the following restrictions:

- Do not handle the connection terminals below -25°C.

- The output ripple can rise up to 150mVpp at -40°C

Selection Table

 

PART NUMBERPOWER (W)INPUT (V)INPUT RANGE (V)OUTPUT (V)OUTPUT CURRENT (A)EFFICIENCY(%)
CTS-120-6865 100 24 14,4 - 30 5 20 78
CTS-120-6866 120 24 14,4 - 30 12 10 83
CTS-120-6867 120 24 14,4 - 30 24 5 84
CTS-120-6868 120 24 14,4 - 30 48 2,5 85
CTS-120-6885 100 36 21,6 - 47 5 20 79
CTS-120-6886 120 36 21,6 - 47 12 10 84
CTS-120-6887 140 36 21,6 - 47 24 5,83 86
CTS-120-6888 140 36 21,6 - 47 48 2,92 88
CTS-120-6869 100 48 28,8 - 60 5 20 79
CTS-120-6870 120 48 28,8 - 60 12 10 84
CTS-120-6871 140 48 28,8 - 60 24 5,83 86
CTS-120-6872 140 48 28,8 - 60 48 2,92 88
CTS-120-6873 100 72 43,2 - 90 5 20 79
CTS-120-6874 120 72 43,2 - 90 12 10 84
CTS-120-6875 140 72 43,2 - 90 24 5,83 86
CTS-120-6876 140 72 43,2 - 90 48 2,92 88
CTS-120-6877 100 110 66 - 144 5 20 80
CTS-120-6878 120 110 66 - 144 12 10 85
CTS-120-6879 140 110 66 - 144 24 5,83 87
CTS-120-6880 140 110 66 - 144 48 2,92 89

Technical Illustration

  • Dimensions Dimensions
  • Blocks Diagram Blocks Diagram
  • Connections Connections
  • Typical Output Characteristic Typical Output Characteristic
  • Power De-rating vs Ambient Temp Power De-rating vs Ambient Temp
  • Accessories Accessories
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