11 Technical data
1035831400/02 EN
RS485 interface for Modbus RTU (type TTM)
Wiring 2-wire; half-duplex
Terminal designation Polarity: A=D+; B=D-; COM=common ground
Expected voltage between A and B in the idle state:
>+200mV
Rated insulation voltage 500VDC/1min; terminals to ground
11.3 Micro-switches
Micro-switch technical data
Quantity 1…6 adjustable micro-switches
Minimum switching distance 6% of the measuring range for standard
switch arrangement; <1K for narrowing
Switching hysteresis Approx. 5K (for decreasing temperature)
Protection Miniature circuit breaker 6A, typeC
Rated insulation voltage in accordance
with IEC60076-22-1
2,500VAC/1min; terminals to ground
1,000V AC/1min; between open termi-
nals
Lightning impulse withstand voltage in
accordance with IEC60076-22-1
4,000V; terminals to ground
3,000V; between open contacts
Contact material Standard: silver alloy
Optional: gold-plated contacts
Contact type Change-over contact, normally open
contact