This product listing is for the part 6ES7231-5QF32-0XB0, manufactured by Siemens, and is a SIMATIC S7-1200 SM 1231 thermocouple analog input module — 8 thermocouple inputs (TC), 24 V DC supply, measures thermocouples and low‑level mV signals for temperature acquisition..

This product is currently out of stock.

Returns are accepted within 30 days if the item(s) received are not what was ordered or are broken.

Part Specifications:
- Number of inputs: 8 channels
- Module type / designation: SM 1231 TC
- Supported sensor types: Thermocouples (J, K, T, E, R, S, N) and low-level voltage (±80 mV)
- Rated supply voltage: 24 V DC
- Current consumption (24 V DC): 40 mA
- Current consumption (from backplane bus 5 V): 80 mA
- Power dissipation (typical): 1.5 W
- Resolution (voltage): 15 plus sign bits
- Temperature resolution: 0.1 °C
- Cold junction compensation error: ±1.5 °C
- Impedance (input): ≥ 10 MΩ
- Common mode rejection: > 120 at 120 V AC dB
- Noise rejection: 85 (for selected filter setting) dB
- Isolation (field to logic): 707 (type test) V DC
- Channel-to-channel isolation: 120 VAC
- Maximum sensor cable length: 100 m
- Wire resistance (max): 100 Ω
- Module update time: null ms
- Module dimensions (W x H x D): null mm
- Mounting: 35 mm DIN rail
- Operating ambient temperature range: −20 to 60 °C
- Protection rating: IP20
- Measuring principle: Integrating
- Wire break detection interval: 6 s
- Manufacturer part number status: Confirmed active (Siemens 6ES7231-5QF32-0XB0 listings and Siemens documentation)

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Siemens

6ES7231-5QF32-0XB0

SIMATIC S7-1200 SM 1231 thermocouple analog input module — 8 thermocouple inputs (TC), 24 V DC supply, measures thermocouples and low‑level mV signals for temperature acquisition.

Specifications

Physical

Mounting

35 mm DIN rail

Operating ambient temperature range

−20 to 60 °C

Protection rating

IP20

Compliance

Manufacturer part number status

Confirmed active (Siemens 6ES7231-5QF32-0XB0 listings and Siemens documentation)

Technical

Number of inputs

8 channels

Module type / designation

SM 1231 TC

Supported sensor types

Thermocouples (J, K, T, E, R, S, N) and low-level voltage (±80 mV)

Rated supply voltage

24 V DC

Current consumption (24 V DC)

40 mA

Current consumption (from backplane bus 5 V)

80 mA

Power dissipation (typical)

1.5 W

Resolution (voltage)

15 plus sign bits

Temperature resolution

0.1 °C

Cold junction compensation error

±1.5 °C

Impedance (input)

≥ 10 MΩ

Common mode rejection

> 120 at 120 V AC dB

Noise rejection

85 (for selected filter setting) dB

Isolation (field to logic)

707 (type test) V DC

Channel-to-channel isolation

120 VAC

Maximum sensor cable length

100 m

Wire resistance (max)

100 Ω

Measuring principle

Integrating

Wire break detection interval

6 s

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