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ATEX Certification with FC 302
The MCB 112 has been certified for ATEX, which means that the FC 302 together with the MCB 112 can now be used with
motors in potentially explosive atmospheres. See the
MCB 112 VLT
®
PTC Themistor Card
for more information.
Figure 9.16 ATmosphère EXplosive (ATEX) Symbol
Electrical Data
Resistor Connection
PTC compliant with DIN 44081 and DIN 44082.
Number
1..6 resistors in series
Shut-off value
3.3
Ω
.... 3.65
Ω
... 3.85
Ω
Reset value
1.7
Ω
.... 1.8
Ω
... 1.95
Ω
Trigger tolerance
± 11 °F [
±
6
°
C]
Collective resistance of the sensor loop
<1.65
Ω
Terminal voltage
≤
2.5 V for R
≤
3.65
Ω
,
≤
9 V for R=
∞
Sensor current
≤
1 mA
Short-circuit
20
Ω≤
R
≤
40
Ω
Power consumption
60 mA
Testing Conditions
EN 60 947-8
Measurement voltage surge resistance
6000 V
Overvoltage category
III
Pollution degree
2
Measurement isolation voltage Vbis
690 V
Reliable galvanic isolation until Vi
500 V
Perm. ambient temperature
-4 °F ... +140 °F [-20
°
C ... +60
°
C]
EN 60068-2-1 Dry heat
Moisture
5–95%, no condensation permissible
EMC resistance
EN61000-6-2
EMC emissions
EN61000-6-4
Vibration resistance
10 ... 1000 Hz 1.14 g
Shock resistance
50 g
Safety System Values
EN 61508 for Tu=75
°
C ongoing
SIL
2 for maintenance cycle of 2 years
1 for maintenance cycle of 3 years
HFT
0
PFD (for yearly functional test)
4.10 *10
-3
SFF
78%
λ
s
+
λ
DD
8494 FIT
λ
DU
934 FIT
Ordering number
130B1137
Options and Accessories
Design Guide
260
Danfoss A/S © Rev. 2014-02-10 All rights reserved.
MG34S222
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Summary of Contents for VLT AutomationDrive FC 300
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