Manufacturer: ZIEHL industrie-elektronik GmbH
Model / Type: TR1200
Part Number: T224095
Device Type: Pt100 Temperature Measurement Relay (12-channel)
Power / Supply
Supply Voltage: AC/DC 24 … 240 V, 0/50/60 Hz
Tolerance: DC 20.4 … 297 V, AC 20.4 … 264 V
Power Consumption: < 3 W, < 10 VA
Temperature Inputs & Measurement
Sensor Inputs: 12 × Pt100 RTD (2- or 3-wire)
Measuring Range: −199 °C … +850 °C
Resolution: 1 °C
Tolerance / Accuracy: ± 0.5 % of measured value ± 1 K
Sensor Current: ≤ 0.8 mA
Measuring Time: 0.25 … 3 s (depending on number of sensors)
Interface & Communication
RS485 Interface: Yes (ZIEHL Standard & Modbus-RTU)
Device Address Range: 0 … 96
Baud Rates: 4800 / 9600 / 19200 baud
Parity: N, O, E (none, odd, even)
Max Cable Length: Up to ~1000 m at 19200 baud
Output Relays
Output: 1 × error relay (change-over contact, CO)
Display & Indicators
Display: 3-digit temperature display
LEDs: Indicators for measured channels, error, relay state, interface activity
Mechanical / Environment
Rated Ambient Temperature: −20 °C … +65 °C
Housing Design: V8 housing
Dimensions (W × H × D): 140 × 90 × 58 mm (mounting height ~55 mm)
Protection Class: IP30 (housing) / IP20 (terminals)
Mounting: DIN-rail 35 mm or M4 screws (optional)
Weight: Approx. 350 g
Standards & Approvals
Approvals: UL / CSA, CE declaration of conformity
