Terminals and wiring, Reliability – Rockwell Automation 1606-XLSBUFFER48 Power Supply Reference Manual User Manual
Page 8
All parameters are specified at 24V, 20A, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.
8
Rockwell Automation Publication 1606-RM027A-EN-P — April 2014
Bulletin 1606 Switched Mode Power Supplies
12. Terminals and Wiring
Power terminal
Type
Bi-stable, quick-connect spring clamp terminals. IP20 Finger-safe construction.
Suitable for field- and factory installation. Shipped in open position.
Solid wire
0.5-6mm
2
Stranded wire
0.5-4mm
2
AWG 20-10AWG
Ferrules
Allowed, but not required
Pull-out force
10AWG:80N, 12AWG:60N, 14AWG:50N, 16AWG:40N (according to UL486E)
Wire stripping length
10mm / 0.4inch
Fig. 12-1 Connecting a wire
Instructions:
a)
Use appropriate copper cables designed
for an operating temperature of 60°C.
b)
Follow national installation codes and regulations.
c)
Ensure that all strands of a stranded wire are fully
inserted in the terminal connection.
d)
Up to two stranded wires with the same cross-
section are permitted in one connection point.
1.
Insert the wire 2. Snap the lever
To disconnect wire : reverse above procedure.
Signal terminal
Type
Plug connector with screw terminal mechanism.
Finger-touch-proof terminal with captive screws for 3.5mm slotted screwdriver.
Solid / stranded wire
0.2-2.5mm
2
AWG 22-14AWG
Ferrules
up to 1.5 mm
2
wire gauge
Wire stripping length
6mm / 0.24inch
Tightening torque
0.4Nm, 3.5lb.in
13. Reliability
Lifetime expectancy
min.
41 000h
40°C, stand-by mode
min.
116 000h
25°C, stand-by mode
MTBF SN 29500, IEC 61709
2 348 000h
40°C, stand-by mode
4 231 000h
25°C, stand-by mode
MTBF MIL HDBK 217F
405 000h
40°C, stand-by mode, ground benign GB40
636 000h
25°C, stand-by mode, ground benign GB25
The Lifetime expectancy shown in the table indicates the operating hours (service life) and is determined by the
lifetime expectancy of the built-in electrolytic capacitors. Lifetime expectancy is specified in operational hours.
Lifetime expectancy is calculated according to the capacitor’s manufacturer specification.
MTBF
means Mean Time Between Failures, which is calculated according to statistics of device failures, and
indicates reliability of a device. It is the statistical representation of the likelihood of failure of a given device, and
does not necessarily represent the life of a product.