Operation and Installation Manual PBTC-300
21-54C3-7D0002/-
01/2022-EHT-441169
Notice:
Technical data subject to change without notice.
No claims for damage arising from alternations, errors or misprints shall be allowed.
Seite 14 / 49
6.2
Operating Data
Parameter
Values
Nominal operating / control
voltage
80 - 277 VAC (50/60Hz)
U
m
305 VAC
Rated power without load
4,5 W
Ambient temperature T
a
-40°C to 55°C
Storage temperature
-50°C to 70°C
Max. pipe temperature
max. 240°C; Observe max. temperature of heating cable type!
Number of control circuits
1 Heating circuit
Connection RTD temperature
Pt100
3-wire cable, 100 Ohm at 0°C (32°F) Platinum Resistance Temperature Device,
Intrinsically safe input circuit, connection cable resistance max. 14 Ohm
Temperature unit
°C/°F
Temperature control range
0°C to 500°C (32°F to 932°F)
Temperature measuring
range thermostat module
-60°C to 500°C (-76°F to 932°F)
Default temperature warning
thresholds
-40°C and 500°C
Temperature Measuring
Range Resistance Tempera-
ture Device Pt100
-50°C to 200°C; max. operating temperature 200°C
Length of connecting lead Re-
sistance Temperature Device
Pt100
1.5 m
Measurement accuracy
±0.5 % of the entire measuring range
Control method
On/off control
Switching capacity of the load
contact
See table "Maximum heating circuit length/max. heating cable length
Temperature adjustment
by rotary coding switch
Hysteresis
Default 5K (9°F)
Resistance Temperature Device Pt100
The Junction Box with Thermostat Module can also be operated with a different Resistance Temperature Device Pt100 than the one
installed by the manufacturer.
Compliance with the max. permissible connected load at the connection terminal must be ensured:
Max. connected load Resistance Temperature Device Pt100:
Ex ib IIC
Ex ib IIB
Ex ib IIIB
Ex ib IIIC
U
0
6,6 V
I
0
827 mA
P
0
1,28 W
L
0
32 µH
128 µH
C
0
6,7 µF
484 µF
The ground connection of the Junction Box with Electronic Thermostat Module to the equipotential bonding system (PE) must be
connected in accordance with the applicable installation standard EN 60079-14 with a cable cross-section of min. 4mm². There is no
galvanic isolation between intrinsically safe circuits or between intrinsically safe circuits and non-intrinsically safe circuits.
Summary of Contents for PBTC-300
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