Repair power supplies
PULS DIN-rail
QS20.241 · QT20.241 · CP20.241 · CPS20.241 · ML60.241 MiniLine · SL10.100
Service of PULS Power DIN-rail power supplies — MOSFET transistor section repair, electrolytic capacitors, PWM controllers, OCP/OVP and redundancy circuits. Quote 24h, 12-month warranty.
Diagnostics included in repair
quote 24h
12-month warranty
Courier pickup from all of Europe
110% load test
PULS power supplies — models and repair scope
QS20.241 / QT20.241 (20A / 480W)
Most popular PULS 24V/20A 480W Q-series power supplies. Repair of MOSFET section, electrolytic and film capacitors, PWM controllers, OCP protection and DC OK signalling circuits.
CP20.241 / CPS20.241 — PowerBoost
24V/20A power supplies with PowerBoost function. Repair of power transistors, PowerBoost circuits (peak current 40A/200ms), DSP controllers, capacitors and diagnostic interface.
ML60.241 / ML100.241 MiniLine
Compact 60/100W MiniLine series power supplies. Repair of MOSFET section, transformer, output filter, electrolytic SMD/THT capacitors.
SL10.100 / SL5.100 SlimLine
Slim DIN series. Repair of switching transistor section and passive components. Replacement of electrolytic capacitors, OVP protection.
YR40.241 / YR80.241 — 3-phase power supplies
3-phase PULS 40A/80A power supplies. Repair of rectifier section, PFC, IGBT transistor, controllers, output capacitors and protection circuits.
PULS UB20.241 redundancy modules
Repair of UB/UF buffer modules used for redundant supply of 2× PULS power supplies + ORing modules. Diagnostics of switchover, buffer diodes and control electronics.
Why EFIXLAB?
Specialists in PULS Power power supply service
- Precise stage-by-stage diagnostics — we check every stage of the PULS power supply: input, PFC, converter, feedback, output, protection.
- Premium capacitors — we use 105°C, long-life (10000h) class electrolytic capacitors. PULS power supplies with older capacitors are susceptible to drying out.
- PowerBoost verification — after repair of CP20/CPS20 we test the PowerBoost function at peak current.
- Redundancy module service — comprehensive repair of N+1 systems with PULS UB/UF modules.
- 12-month warranty — on all service work.
How does PULS power supply service work?
Request
online or by phone
Shipping
by courier
diagnostics
PULS
Quote
no obligation
Repair
& testing 110%
Return
with warranty
Report fault power supplies PULS — quote 24h
Provide the full PULS model number (e.g. QS20.241), symptom description (no DC OK, overheating, burning smell) and application. Our power supply specialist will contact you shortly.
Dziękujemy! Your request has been received — our PULS specialist will contact you shortly.Frequently asked questions — PULS
QS20.241 is a single-phase 480W/20A power supply. QT20.241 is a power supply with an extended 3-phase input range (which also works single-phase). Electronics architecture is similar.
Power supplies operated for more than 7–8 years at high temperatures (>40°C) should have their electrolytic capacitors replaced preventively. PULS repair + capacitor replacement is good practice when a power supply arrives after a failure.
Typical QS20.241 repair costs 100–220 PLN. A new PULS QS20.241 costs approx. 350–450 PLN, so repair is cost-effective. Exact quote after diagnostics.
PULS Power Supply Repair — High-Efficiency DIN Rail Units
PULS is a German manufacturer specializing in high-efficiency, compact DIN rail power supplies known for exceptional reliability and power density. Their QT, QS, CP, CS, and ML series power supplies achieve up to 95.6% efficiency, generate minimal heat, and offer best-in-class power density — allowing smaller cabinet designs. PULS supplies are specified by automation system designers who value long MTBF, extended temperature range, and compact form factor for space-constrained installations.
Common PULS power supply failures include output capacitor aging (though PULS uses high-quality capacitors, extended service at high ambient temperatures eventually causes degradation), input stage component failures from severe mains transients, output diode degradation, and fan failures in larger models (QT40 series). The high efficiency of PULS supplies means less internal heat generation and longer capacitor life, but no power supply component lasts indefinitely. Installations in poorly ventilated cabinets with high ambient temperatures may experience earlier-than-expected failures.
EFIXLAB provides PULS power supply repair with attention to their high-quality design. Our service uses extended-life, high-temperature capacitors matching or exceeding original PULS specifications, premium switching transistors, and precision output diodes. We test repaired PULS supplies under full rated load, verify efficiency, output regulation, and dynamic load response to ensure performance meets the high standards PULS products are known for.
PULS power supply repair saves 35–55% versus new unit purchase. Given PULS premium pricing and the high quality of their original design, repair with quality components delivers excellent continued performance. All PULS repairs include comprehensive load testing and our 12-month warranty.