GLC50 Commercial/GLM50 Medical
50 WATT GLOBAL PERFORMANCE SWITCHERS
GLOBAL PERFORMANCE SWITCHERS
Features:
D C P o w e r S u p p l i e s
• Cost-effective power source
• Universal input 90-264 Vac
• 2-year warranty
• Compact (4.25” x 2.50” x 1.25”; meets
1U applications)
• Overload and overvoltage protection
• Conducted EMI exceeds FCC Class B and
CISPR 22 Class B (Commercial models) and
CISPR 11 Class B (Medical models)
• Commercial UL/CSA/IEC60950-1, EN60950 approvals
• Medical UL/EN/IEC60601-1, CSA22.2 No. 601,
• RoHS compliant models available (G suffix)
•
marked to LVD
SPECIFICATIONS
Ac Input
Temperature Coefficient
0.03%/°C typical on all outputs.
90-264 Vac, 47-63 Hz single phase..
Input Current
Output Noise
Maximum input current at 120 Vac, 60 Hz with full rated output load: 1.5 A
0.5% rms, 1% pk-pk, 20 MHz bandwidth, differential mode. Measured with noise
probe directly across output terminals of the power supply.
Hold-Up Time
15 ms minimum from loss of ac input at full load, nominal line (115 Vac).
Transient Response
500 μs typical response time for return to within 0.5% of final value for a 50% load
step change. ∆i/∆t<0.2 A/μs. Maximum voltage deviation is 3.5%. Startup/shut-
down overshoot less than 3%.
Output Power
50 W continuous, 60 W peak. Peak ratings are for 60 s maximum duration,
10% duty cycle. During peak load condition, output regulation may exceed
total regulation limits.
Voltage Adjustment
Built-in potentiometer adjusts V1 5%.
Output Regulation
To maintain specified regulation on multi-output models, output #1 load
power must be at least 1/5th of, and not greater than 5 times output #2 load
power.
EMI/EMC Compliance
All models include built-in EMI filtering to meet the following emissions require-
ments:
Overload Protection
EMI SPECIFICATIONS
COMPLIANCE LEVEL
Fully protected against short circuit and output overload. Short circuit pro-
tection is cycling type power limit on outputs 1 & 2; foldback type on output
3. Recovery after fault is automatic. See output ratings chart for additional
notes or conditions.
Conducted Emissions GLC
Conducted Emissions GLM
Static Discharge
RF Field Susceptibility
Fast Transients/Bursts
Surge Susceptibility
EN55022 Class B; FCC Class B
EN55011 Class B; FCC Class B
EN61000-4-2, 6 kV contact, 8 kV air
EN61000-4-3, 3 V/meter
EN61000-4-4, 2 kV, 5 kHz
EN61000-4-5, 1 kV diff., 2 kV com.
Efficiency
70-85% at full rated load, nominal input voltage, depending on model and
load distribution.
Minimum Load
Commercial Leakage Current
Operating without minimum load will not degrade reliability, but regula-
tion may be affected. Multiple output models require 20% minimum load
on V1 for proper regulation. Single models require 5% minimum load when
a transient load greater than 30% is applied or removed, but will operate
without load.
160 μA 254 Vac @ 60 Hz input (with no deviations).
Commercial Safety
All GLC models are approved to UL1950, CSA22.2 No.
234 Level 3, IEC950 and EN60950.
Medical Leakage Current
100 μA 264 Vac @ 60 Hz input (normal conditions).
Input Protection
Internal ac fuse provided. Designed to blow only if a catastrophic failure oc-
curs in the unit—fuse does not blow on overload or short circuit.
Medical Safety
Inrush is limited by internal thermistors. Inrush at 240 Vac,
averaged over the first ac half-cycle under cold start
conditions will not exceed 37 A.
All GLM50 models are approved to UL/EN/IEC60601-1, CSA22.2 No. 601.
All specifications are typical at nominal input, full load at 25OC unless otherwise stated
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