OT FIT 50/220…240/350 D L

Product family benefits
  • Small housing design
  • Fixed current
  • Lifetime: up to 100,000 h (temperature at Tc = 65 °C, max. 10 % failure rate)
  • High quality of light thanks to low output ripple current
  • High efficiency
  • Fulfill safety requirement due to overload, overtemperature, Hot Plug protection
Areas of application
  • Linear lighting for office, education, industry, storage areas and retail
  • Installation in emergency lighting systems according to IEC 61347-2-13, appendix J
  • Suitable for installation in emergency lighting systems according to EN 60598-2-22
  • Suitable for luminaires of protection class I
German innovation awards 2019 winner

Technical Data

Electrical data

Nominal input voltage

220…240 V

Mains frequency

0/50/60 Hz

Input voltage AC

198…264 V

Permitted voltage range

Input voltage DC

176…276 V

Current set

Fixed current

Total harmonic distortion

< 20 %

Power factor λ

> 0.95

Full load at 230 V

Efficiency in full-load

90 %

at 230 V, 50 Hz

Device power loss

5.0 W


Protective conductor current

<2.0 mA

Max. ECG no. on circuit breaker 10 A (B)


Max. ECG no. on circuit breaker 16 A (B)


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

54…150 V

U-OUT (working voltage)

< 250 V

Nominal output current

350 mA


Output current tolerance

±10 %

Output ripple current (100 Hz)

< 10 %

Output PSTLM


Output SVM


Nominal output power

18.9…52.5 W

Maximum output power

52.5 W

Galvanic isolation

Non isolated

Galvanic isolation primary/secondary


Default output current

350 mA

Dimensions & weight

Mounting hole spacing, length

200.0 mm

Product weight

125.00 g

Cable cross-section, input side

0.5…1.5 mm²

Solid or flexible leads

Cable cross-section, output side

0.5…1.5 mm²

Solid or flexible leads

Wire preparation length, input side

8.5…9.5 mm

Wire preparation length, output side

8.5…9.5 mm


30.0 mm


21.0 mm


210.0 mm

Colors & materials

Casing material


Temperatures & operating conditions

Ambient temperature range

-15…+50 °C

Maximum temperature at tc test point

75 °C

Maximum at the Tc-point

Max.housing temperature in case of fault

110 °C

Temperature range at storage

-25…85 °C

Permitted rel. humidity during operation

5…85 %

Maximum 56 days/year at 85 %


ECG lifetime

50000 / 100000 h

At maximum Tc = 75°C / 10% failure rate / At Tc = 65°C / 10% failure rate




Overheating protection

Automatic reversible

Overload protection

Automatic reversible

Short-circuit protection

Automatic reversible

No-load proof


Intended for no-load operation


Max. cable length to lamp/LED module

2.0 m

Output wires must be routed as close as possible to each other

Suitable for fixtures with prot. class


Type of connection, input side

Push terminal

Type of connection, output side

Push terminal

Number of channels


Certificates & standards

Approval marks – approval



Acc. to EN 61347-1/Acc. to EN 61347-2-13/Acc. to EN 55015/Acc. to EN 61547/Acc. to EN 61000-3-2/Acc. to EN 62384/Acc. to EN 62386

Protection class


Type of protection


Logistical data

Commodity code


Environmental information

Information according Art. 33 of EU Regulation (EC) 1907/2006 (REACh)

Date of Declaration


Primary Article Identifier


Candidate List Substance 1


CAS No. of substance 1


Safe Use Instruction

The identification of the Candidate List substance is sufficient to allow safe use of the article.

Declaration No. in SCIP database


Packaging information




Dimension l x w x h



4052899222595 UNV


1 210mm x 30mm x 21mm 125.00g 0.13dm³
4052899222601 VS

Shipping box

20 234mm x 161mm x 101mm 2665.00g 3.81dm³


Information about Family

Optimized price/feature ratio – great featureset for budget pricing.

Remarkable about this product is the small housing which is only 210mm long and the high efficiency of up to 90%. A dedicated current per driver and a low ripple contributing to the lighting quality mark some additional characteristics. This device is also suitable for emergency lighting units.
Product family features
  • Line frequency: 0 Hz | 50 Hz | 60 Hz
  • Versatile scope of application due to output power range of up to 50 W
  • Supply voltage: 220…240 V
  • Available with output current range: up to 350 mA
  • Non-isolated drivers
Ecodesign regulation information:
Intended for use with LED modules.
The forward voltage of the LED light source shall be within the defined operating window of the control gear in all operating conditions including dimming if applicable.

Separate control gear and light sources must be disposed of at certified disposal companies in accordance with Directive 2012/19/EU (WEEE) in the EU and with Waste Electrical and Electronic Equipment (WEEE) Regulations 2013 in the UK. For this purpose, collection points for recycling centres and take-back systems (CRSO) are available from retailers or private disposal companies, which accept separate control gear and light sources free of charge. In this way, raw materials are conserved and materials are recycled.


Sort by:
Nominal output voltage
Nominal output current
Data sheet
OT FIT 30/220…240/125 D L
54…216 V 125 mA 210.0 mm 30.0 mm 21.0 mm
OT FIT 45/220…240/200 D L
54…216 V 200 mA 210.0 mm 30.0 mm 21.0 mm
OT FIT 50/220…240/250 D L
54…216 V 250 mA 210.0 mm 30.0 mm 21.0 mm
OT FIT 50/220…240/300 D L
54…175 V 300 mA 210.0 mm 30.0 mm 21.0 mm
OT FIT 50/220…240/350 D L
54…150 V 350 mA 210.0 mm 30.0 mm 21.0 mm