Kessel Comfort PLUS Originalbetriebsanleitung Seite 42

2.5.1 Additional information on ATEX design
The requirements of the standards EN 50014 +
II (1) GD [Ex ia Ga] IIC
A1-A2, EN 50020:2002 are satisfied.
Permissible air humidity
Maximum operating height
Maximum power consumption
(terminals N, L1, L2, L3, PE)
Input circuits
(terminals TF1a, TF2a, TF1b, TF2b)
Output circuit potential-free contact
Power contactor
Control elem. power circuit
The control unit must be operated outside the potentially explosive area. The
necessary classification: Group II, Category (1)G, appropriate operating equipment
for a gas atmosphere.
42
10 to 80%, non-condensing
2000 m above sea level
11 VA Mono / 15 VA Duo systems
Three-phase current
230 V (AC) / 50 Hz +- 10% to supply the
electronics
Thermal inputs Un = 230V
U = 42 V AC DC /0.5 A
Switching contacts U = 400V +-10% <=4kW
(P2), 50Hz
Passive (switches and buttons)
Installation and operating manual
Technical specification (single barrier)
Level circuit in type of protection intrinsic safety Ex ia IIC
Float switch terminals:
Level probe terminals:
Max. values*:
Uo
Io
Ro
Po
Co
Lo
Lo/Ro
*Zener barrier MTL 7787+
EU type approval certificate for the Zener barriers
Standard marking
OFF, ON1, ON2, ALARM
Probe 2 bk + bl
28 V
93 mA
300 Ω
0.65 W
0.083 µF
16 mH
106 µH/Ω
010-700_01