7.4 Other Specifications
Enclosure
Form 130B4065
PA 6
Dimensions (H x W x T) [mm]
82.5 x 69.5 x 29.5
Wire connection, solid wire
1 x 0.5–1.5 mm
2
(AWG 20–16 solid wire)
Insulation strip length
8.5–9.5 mm
Protection rating IEC 60529
IP20
Weight
≈
50 g
7.5 Safety Characteristics of the Built-in MCB 112
The safety characteristics include the connection between
output safe stop T37 (output X44/12 on MCB 112) and
terminal 37 input on the control card.
Operating
mode
Hardware
architecture
Fault
tolerance
HFT
Safety
integrity
level
Subsystem
Low
demand
mode
1oo1
0
SIL 2
Type A
device
Table 7.1 Safety Integrity Level SIL (EN 61508)
MCB 112 MTBF
SFF
λ
SD
λ
SU
λ
DD
λ
DU
Ta=40
°
C 44
years
96,5% 2103 x
10
-9
/h
41.8 x
10
-9
/h
1.23 x
10
-9
/h
81.4 x
10
-9
/h
Table 7.2 Safety-related Parameters, Part 1
MCB 112 Proof test
interval
1 year
3 years 5 years 10 years
Ta=40
°
C PFD
avg
3.37E-04 1.01E-03 1.68E-03 3.37E-03
Table 7.3 Safety-related Parameters, Part 2
Observe the proof test interval according to EN 60079-17
for electrical equipment
≤
3 years.
The data of the functional safety stated in
Table 7.1
to
Table 7.3
are valid for an ambient temperature of 40
°
C.
Data for more ambient temperatures can be obtained by
request.
Technical Specifications
VLT
®
PTC Thermistor Card MCB 112
22
Danfoss A/S © 01/2015 All rights reserved.
MG33V302
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