Trimod Besta LTB002X Instrucciones De Servicio página 12

5. Technical data
Safety Integrity Level (SIL)
Types
A..., DA..., HA..., TDA..., U...A..., B..., DB...,
HB..., TDB..., U...B..., etc.
AA..., DAA..., HAA..., TDAA..., U...AA..., BB...,
DBB..., HBB..., TDBB..., U...BB..., etc.
Switching power in AC
Type A...
5 A 250 VAC
Switching power in DC
Type A...
5 A 30 VDC
3 A 50 VDC
1 A 75 VDC
0,5 A 125 VDC
0,25 A 250 VDC
Electrical connection
Power connection must be executed in accordance with local regulations and safety requirements.
For operating temperatures above 100°C cables with appropriate heat-resistant insulation must be
used.
Do not wire for direct starting of motors, but wire in series with operating coils, relays etc.
This equipment has no excess-current cut-out device.
The rated cross-section of the conductor to be considered here must be at least 0,5 mm².
Connection cables may not be bared for a distance of more than 3 mm from the terminal screw. Wire
end ferrules must always be used.
Special conditions for safe use
Level switch without heat exchanger (flat gaskets IP65)
A..., AA..., B..., BB...,
2A..., 2AA..., 2B..., 2BB...,
5A..., 5AA..., 5B..., 5BB..., etc.
www.trimodbesta.com
assembled with
1 microswitch
2 microswitches
Type B...
1)
5 A 250 VAC
The contacts of the microswitches of type B... are gold-plated. Alt-
1)
hough the maximum values according to the table are permitted, the
gold layer will be permanently damaged at electrical values that are
higher than for intrinsically safe circuits or applications with high volt-
age/power.
Type B...
2)
300 mA 30 VDC
2) Only approximate values can be given for the allowable charge of gold
contacts. These must be reduced under unfavourable impedance condi-
tions. The product of current and voltage should not exceed 0,12 VA.
The current should be ≤ 300 mA and voltage ≤ 30 V. For alternating cur-
rents these values must be interpreted as peak values.
Limits
microswitch
T
i
-25°C to 150°C
The combinations of the maximum values are to be avoided!
Limit value combinations according to temperature diagram
12 │ 46
SIL Level
SIL 1 (SIL 3 capable)
SIL 2 (SIL 3 capable)
Ambient
temperature
T
A
0°C to 70°C
3081-009EN in the appendix 1
Operating
temperature
T
0
0°C to 330°C
LTB002X │ 2023/01