Service Manual
Operating Lights marLED® E3, E9, E9i, E15, battery and
marLED® E3 on ceiling tube Ø 110 mm
Revision 2 23
5.2.3 Circuit Diagram with integrated ASPS Assembly
For IT systems (voltage supply: Isolated neutral, user protection: grounding (French: Terre),
Gebrüder Martin provides power modules (A1.4) with fuses (F1 and F11) for both voltage-carrying
leads (L1, L2). For standard systems with grounded neutral conductor, the power modules (A1.3) with fused
phase (only F1 for L) must be used.
Power module SMPS 36/9 S3 U L (-N)
100–240 VAC, 50–60 Hz, Input current 3.5–1 A
Output Power max. 290 W (28–36 VDC)
Rotary potentiometer for output voltage
Adjustment across a range of
28–36 VDC, see section 5.2.5 “Adjusting the
F11 for IT systems only (isolated power supply)
Connector Designation Fuse rating
X1 Input 100–240 VAC, 50–60 Hz F1/F11
X3 Input from battery, 24–36 VDC T 5 AH, 250 V
X3 Output 24–36 VDC
X4 Floating relay contact, max. 1 A, for driving
mains/ASPS control LEDs
X5 ASPS LED AC (GN)/DC (RD) in canopy
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