High-voltage KFS1200 Series 1200W AC/DC power supply with 120VDC output, 10A rated current, and 110–132V adjustable range in a compact 108.8 × 278.1 × 41mm housing. Featuring 90–264VAC universal input, peak power up to 3800W for 5 seconds, DC_OK analog signal, and active current sharing, it is well suited for industrial and medical applications, collaborative robots, and linear motor systems.

Input Voltage Range

Single-phase 90VAC - 264VAC

Input Voltage Frequency

50Hz - 60Hz

Output Voltage

120V

Rated Current

0-10A

Peak Output Current

31.7A

Rated Power

1200W

Peak Output Power

3800W @ Vin≥220VAC

Output Ripple

≤1%

Peak Efficiency @230Vac

94% (exclude fan power)

Outline

4.28“x10.95”x1.61“ or 108.8mmx278.1mmx41mm

EMC

CLASS B Conducted and CLASS A Radiated Emissions

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Description

30-Second Fit Check

Output: 120V DC, 10A (1200W)
Trim range: 110–132V (confirm your required setpoint)
Peak current: 31.7A peak
Input: 90–264VAC (47–63Hz)
Controls: DC_OK + remote sense + remote on/off; PMBus/CANBus optional

What It Is & Why It Matters

Higher-voltage DC rail support with a defined adjustment window for commissioning
Remote on/off helps system integrators manage power sequencing at the system level
DC_OK offers a straightforward status hook for serviceability
Isolation and leakage specs are explicitly listed for the series—useful for risk review (verify requirements)

Key Specs

120V / 10A rated output
Series peak: 3800W for 5s when input ≥180VAC
Regulation <3%; ripple 1% p‑p; dynamic response <5% (series)
Isolation (series): primary-to-secondary 3000VAC; primary-to-earth 1500VAC; secondary-to-earth 1500VAC
Leakage (series): touch <100µA; earth <500µA

Integration & Controls

Remote sense compensation + remote on/off
DC_OK analog indication signal
PMBus/CANBus optional (confirm ordering)
Smart fan speed control listed—plan airflow and validate in test

Best for / Not for

Best for: systems requiring a 120V DC rail with an 110–132V trim window
Best for: builds that benefit from remote on/off control and DC_OK monitoring
Not for: fanless-only requirements
Not for: input below 90VAC

Typical Applications & Selection Checklist

Applications: industrial/medical AC/DC systems; collaborative robotics subsystems
Confirm setpoint fits 110–132V
Validate peak events vs 31.7A peak and series peak condition
Plan wiring and remote sense strategy (if harness drop is meaningful)
Validate thermal conditions in end-product verification testing

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