Rockwell Automation 1606-XLE960MX-3N Power Supply Reference Manual - Manual (Page 13)

All parameters are specified at 48V, 20A, 3x480Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
Rockwell Automation Publication 1606-RM025A-EN-P — April 2014 13
Bulletin 1606 Switched Mode Power Supplies
16. Protection Features
Output protection Electronically protected against overload, no-load and short-circuits *)
Output overvoltage protection max. 57.2Vdc in case of an internal power supply failure, a redundant
circuit limits the maximum output voltage. The output
shuts down and automatically attempts to restart.
Input overvoltage shutdown typ. 3x 560Vac 1606-XLE960MX-3N
Degree of protection IP 20 EN/IEC 60529
Penetration protection > 3.5mm e.g. screws, small parts
Over-temperature protection yes output shut-down, reset required
Input transient protection MOV (Metal Oxyde Varistor) and active transient blocker
Internal input fuse not included see section 26.4
*) An audible noise may be heard during a no-load, overload or short circuit event.
17. Safety
Input/output separation SELV IEC/EN 60950-1
PELV
double or reinforced insulation EN 60204-1, EN 50178, IEC 60364-4-41
Class of protection I PE (Protective Earth) connection required
Isolation resistance > 5MOhm input to output, 500Vdc
PE resistance < 0.1Ohm between housing and PE terminal
Touch current (leakage current) typ. 0.40mA 1606-XLE960MX-3N: 3x480V, 60Hz, TN mains
< 0.45mA 1606-XLE960MX-3N: 3x524V, 60 Hz, TN mains
18. Dielectric Strength
Fig. 18-1 Dielectric strength A B C
Type test 60s 2500Vac 3000Vac 500Vac
Factory test 5s 2500Vac 2500Vac 500Vac
Field test 5s 2000Vac 2000Vac 500Vac
A
C
B
L1
Input
Earth
Output
-
+
L3
L2
Type tests and factory tests:
Conducted by the manufacturer. Do not repeat these tests in
the field!
Rules for field test:
Use appropriate test equipment which applies the voltage
with a slow ramp! Connect L1, L2 and L3 together as well as
all output poles.
The output voltage is floating and has no ohmic connection to ground. Grounding of output is allowed.
To fulfill the PELV requirements accord ing to EN60204-1 paragraph 6.4.1, RA recommends that either the + pole or
the – pole be connected to the protective earth system. This helps avoiding situations in which a load starts
unexpectedly or cannot be switched off in the occurence of an unnoticed ground fault.