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ST-05368
IEC 60950-1 / EN 60950-1
Clause
Requirement – Test
Result – Remark
Verdict
TRF No.: IECEN60950_1A
2.5
Limited power sources
Inherently limited output
P
Impedance limited output
N/A
Overcurrent protective device limited output
N/A
Regulating network limited output under normal
operating and single fault condition
operating and single fault condition
P
Regulating network limited output under normal
operating conditions and overcurrent protective
device limited output under single fault condition
operating conditions and overcurrent protective
device limited output under single fault condition
N/A
Output voltage (V), output current (A), apparent
power (VA) .........................................................:
power (VA) .........................................................:
See the Note below
Current rating of overcurrent protective device (A)
Note:
The output of the power supply complies with the requirement of inherently Limited Power Source.
Model: NU40-2240050-I3
Limits: Isc
≤ 8.0 A, S ≤ 100 VA.
Measured Uoc = 24.41 Vdc, Isc = 3.3 A, S = 57.19 VA (23.83 Vdc
× 2.4 A), under the maximum normal
operation
Limits: Isc
≤ 8.0 A, S ≤ 100 VA.
Measured Uoc = 24.29 Vdc, Isc = 3.2 A, S = 57.24 VA (23.85 Vdc
× 2.4 A), under the single fault condition of
U2 (pin1 – pin2) shorted (the worst case).
Model: NU40-2100400-I3
Limits: Isc
≤ 8.0 A, S ≤ 51.55 VA (5 x Uoc).
Measured Uoc = 10.31 Vdc, Isc = 5.24 A, S = 40.17 VA (9.13 Vdc
× 4.4 A), under the maximum normal
operation
Limits: Isc
≤ 8.0 A, S ≤ 51.45 VA (5 x Uoc).
Measured Uoc = 10.29 Vdc, Isc = 5.2 A, S = 41.62 VA (9.46 Vdc
× 4.4 A), under the single fault condition of
U2 (pin1 – pin2) shorted (the worst case).
Model: NU40-2050400-I3
Limits: Isc
≤ 8.0 A, S ≤ 26.0 VA (5 x Uoc).
Measured Uoc = 5.2 Vdc, Isc = 6.9 A, S = 21.53 VA (4.58 Vdc
× 4.7 A), under the maximum normal
operation
Limits: Isc
≤ 8.0 A, S ≤ 25.5 VA (5 x Uoc).
Measured Uoc = 5.1 Vdc, Isc = 6.8 A, S = 21.76 VA (4.63 Vdc
× 4.7 A), under the single fault condition of U2
(pin1 – pin2) shorted (the worst case).
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