Martens TB225 - Temperature Limiter

Auxiliary power
Auxiliary voltage : 18 – 230 V AC/DC
Power consumption : < 5 VA
Rated voltage : 250V AC in accordance with
EN 60730-1: 10/2011,
between input / relay output /
auxiliary voltage, Degree of
contamination 2,
Overvoltage category III
Rated surge voltage 4kV
CE Conformity : 2014/30/EU: EN 600730-1:2011;
EN 60730-2-9:2010
2014/35/EU: EN 60064-1:2007
2011/65/EU: EN IEC 63000:2018
Environmental conditions
Operating temperature : -10..+55 °C
storage temperature : -20..+60 °C
Relative air humidity : < 95 %
Condensation : not permitted
Approvals Title
EN 14597: 2012 : Temperature control devices and
temperature limiters for heat generating
systems
EN 61508:2010 SIL2 : Functional security safety-related
electrical / electronic / programmable
electronic systems
Input
Pt100 : -100.0..600.0°C
Accuracy : 0,2%, ±1 Digit
Temperature coefficient : 0,01%/K
Thermocouple : Type J:Fe-CuNi-100..800°C
Type K: NiCr-Ni -150..1200°C
Type N:NiCrSi-NiSi -150..1200°C
Type S:Pt10RH-PT 0..1600°C
Reference junction compensation
integrated
Accuracy: : <0.3 %, ±1 digit
Temperature coefficient : 0.01 %/K
Analog input : 0/2..10 V DC, 0/4..20 mA
0..10 V und 0..20 mA not allowed for
temperature limiter
Accuracy : 0,2%, ±1 Digit
Temperature coefficient : 0,01%/K
Display : graphic LC display with 32 x 90 pixel,
with white/red background lighting
Outputs
Switching outputs : 2 x relay
Changeover relay : < 250 V AC < 500 VA < 2 A
ohmic load
< 30 V DC < 60W < 2 A ohmic load
Internal main relay secured with 2A
fuse!
Fuse is not interchangeable!
Analog output : 0/4..20 mA load ≤ 500 Ω
0/2..10 V DC load > 500 Ω
electrically isolated.
Output switches automatically
(load-dependent)
Housing : polyamide (PA) 6.6 , UL94V-0,
TS35 in accordance with
DIN EN 60715
Weight : approximately 180 g
Connection : screw terminals 0.14..2.5 mm²
with wire protection
0.14 - 2.5 mm² (AWG 26 - 14)
Protection rating : IP20, BGV A3