Digital Systems


The OPTOTRONIC FIT CS G2 is a constant current LED power supply that has an extensive lifespan, and can be independently mounted with the matching cable clamp kit. You can use it with downlights, spotlights and in LED panels, and in luminaires of protection classes I and II. The many benefits of this product include a high quality of light, thanks to its low output ripple current, lots of flexibility thanks to 4 different output currents, and enhanced levels of efficiency and reliability.


Product data sheet
Product family features
  • Supply voltage: 220…240 V
  • Line frequency: 50 Hz | 60 Hz
  • Line voltage: 198…264 V
  • Safety according to EN 61347-1, 61347-2-13, 62384
  • RI suppression: to EN 55015
  • Line harmonics according to EN 61000-3-2
  • Immunity according to EN 61547
  • Lifetime: up to 50,000 h (temperature at Tc = 70 °C, max. 10 % failure rate)
  • Cable clamp kit for independent mounting
Product family benefits
  • High quality of light thanks to low output ripple current
  • High flexibility due to four different output currents
  • Small housing for flexible luminaire designs
  • High efficiency
Family datasheet

Electrical data

Nominal input voltage 220…240 V
Mains frequency 50…60 Hz
Input voltage AC 198…264 V
Total harmonic distortion < 10 %

At full load, 230 V, 50 Hz / see graphs

Power factor λ 0.98
ECG efficiency 87 %

At full load and 230 V

Device power loss 3.0 W

At 230 V, Input power 24 W max.

Protective conductor current <0.7 mA
Inrush current < 16 A

twidth = 100 µs (measured at 50 % Ipeak)

Max. ECG no. on circuit breaker 10 A (B) 32
Max. ECG no. on circuit breaker 16 A (B) 50
Max. ECG no. on circuit breaker 25 A (B) -
Surge capability (L/N-Ground) 2 kV
Surge capability (L-N) 1 kV
Nominal output voltage 25…42 V
U-OUT (working voltage) 60 V
Nominal output current 250 / 350 / 450 / 500 mA
Output current tolerance ±7.5 %
Output ripple current (100 Hz) < 5 %
Nominal output power 6.5…21 W
Galvanic isolation SELV
Current set DipSwitch

Dimensions & weight

Mounting hole spacing, length 88.0 mm
Mounting hole spacing, width 34.0 mm
Product weight 85.00 g
Cable cross-section, input side 0.5…1.5 mm²
Cable cross-section, output side 0.5…1.5 mm²
Wire preparation length, input side 7…8 mm
Wire preparation length, output side 7…8 mm
Height 29.5 mm
Width 43.0 mm
Length 97.0 mm

Colors & materials

Casing material Plastic

Temperatures & operating conditions

Ambient temperature range -20…+50 °C
Maximum temperature at tc test point 80 °C
Max.housing temperature in case of fault 110 °C
Permitted rel. humidity during operation 5…85 %

Maximum 56 days/year at 85 %


ECG lifetime 50000 / 30000 h

Tc = 70°C, with max. 10% failure rate / Tc = 80°C, with max. 10% failure rate

Additional product data

Encapsulated No


Dimmable No
Overheating protection Automatic reversible
Overload protection Automatic reversible
Short-circuit protection Automatic reversible
No-load proof Yes
Max. cable length to lamp/LED module 2.0 m
Suitable for fixtures with prot. class II
Type of connection, output side Push terminal
Number of channels 1

Certificates & standards

Approval marks – approval CCC / CE / RCM / ENEC 05
Standards Acc. to IEC 61347-1/Acc. to IEC 61347-2-13/Acc. to IEC 62384/Acc. to CISPR 15/Acc. to IEC 61000-3-2/Acc. to IEC 61000-3-3/Acc. to IEC 61547
Type of protection IP20

Logistical data

Temperature range at storage -20…80 °C
Commodity code 850440829000



Dimension l x w x h



4052899435612 UNV
4052899435629 VS
228mm x 208mm x 78mm 1806.00g 3.70dm³