Honeywell T7412B, T7412C, T7412D, T7412A, T7412E PRODUCT DATA
T7412A,B,C,D,E
ROOM TEMPERATURE SENSOR
PRODUCT DATA
Hon eywe ll
Hon eywe ll
°C
20
25
15
30
Hon eyw el l
-
°C
+
GENERAL
The T7412A,B,C,D,E Room Temperature Sensors are used
for room temperature measurement and remote control-point
adjustment (CPA) or remote setpoint adjustment (SPA) in
heating, ventilating and air conditioning systems.
Models are available with PT1000, PT100, NTC 20kΩ, or
BALCO 500 sensing elements and with or without remote
control or setpoint adjustment.
They are suitable for the following control systems:
• Excel IRC
• Excel Plus and High Performance Excel Plus
• Excel EMC
• Excel 5000
• Excel Classic
• MicroniK 100 and MicroniK 200
or other systems using PT1000, PT100, NTC 20kΩ, or
BALCO 500 sensing elements.
As a passive product, this sensor is not subject to the
requirements of CE.
FEATURES
• PT1000, PT100, NTC20kΩ, or BALCO 500
temperature sensing element
• Sensing range 0...50 °C (32...122 °F)
• High-precision sensor elements
• Attractive housing
• Occupied/unoccupied slide switch
• Fan speed switch
• Push-button for time extension or other purposes and
LED for status indication
SPECIFICATION
Ambient Limits
Operating temperature 0...50 °C (+32...+122 °F)
Transport and storage temp. -25...+70 °C (-13...+158 °F)
Humidity 5...95%rh, non-condensing
Safety
Protection class II
Protection standard IP30
Flame retardant housing V0
Housing Plastic (ABS)
Dimensions (H x W x D) 130 x 80 x 34 mm
(5.12 x 3.15 x 1.34”)
Weight 100 g
Mounting Wall, surface, or European
outlet box
Connections
Screw terminals for 2x1.5 mm
Potentiometer/Switches
CPA/SPA potentiometer circuit see Fig. 1 on page 3
Occupancy switch or extend
push-button Potential-free contact
Occupancy
- occupied closed < 100Ω
- unoccupied open > 40kΩ
Fan speed switch Resistor Network
- auto-OFF-I-II-III
2
conductors
® U.S. Registered Trademark EN0B-0240GE51 R1009
Copyright © 2009 Honeywell Inc. • All rights reserved
T7412A,B,C,D,E ROOM TEMPERATURE SENSOR
Temperature Sensor
Order Numbers
Sensing element PT1000, PT100, BALCO 500,
NTC 20kΩ
Characteristic see EN0B-0476GE51 for
characteristic
Sensing range 0...+50 °C (+32...+122 °F)
Response time τ
≈ 2.5 min
0.5
Resistance
PT1000 1000Ω at 0 °C
PT100 100Ω at 0 °C
BALCO 500 500Ω at 23.3 °C
NTC 20kΩ 20kΩ at 25 °C
Sensitivity
PT1000 ≈ 3.85Ω / K
PT100 ≈ 0.385Ω / K
BALCO 500 ≈ 2Ω / K
NTC 20kΩ non-linear characteristic
Accuracy
PT1000 / PT100 DIN IEC 751 Class B
0.3 K + 0.5% • ⏐t⏐(t in °C)
BALCO 500 ±1Ω at 23.3 °C
NTC 20kΩ 0.3 K at 25 °C
OS no. temperature sensing element*
T7412A1000
T7412A1018 PT1000
T7412A1026 BALCO 500
T7412A1059 PT100
T7412B1008
T7412B1016 PT1000 + CPA
T7412B1024 BALCO 500 + SPA 15...30 °C
T7412B1040 PT1000 + SPA 15...30 °C
T7412B1057 PT1000 + CPA
T7412C1006
T7412C1030 PT1000 + CPA and occ./unoccupied switch
T7412D1004
T7412E1001
T7412E1027
For potentiometer values and circuits, see Fig. 1.
* Other temperature sensing elements and different housing
colors are available, upon request.
Models
NTC 20kΩ
NTC 20kΩ + CPA
NTC 20kΩ + CPA + occ./unoccupied switch
NTC 20kΩ + CPA + Fan Speed Switch
NTC 20kΩ + push-button + C-Bus
connector
NTC 20kΩ + push-button + indication LED
model no. / function
T7412A T7412B T7412C T7412D T7412E
temperature sensor
Ho neyw el l Ho neyw el l
remote setpoint
adjustment
°C
2520
30
15
Ho neyw el l
-
control-point adjustment
occupied/
unoccupied switch
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°C
+
-
fan speed switch
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auto
0123
°C
+
°C
-
+
occupancy extend
push-button
LED or PIT C-Bus
connector
Ho neyw el l
EN0B-0240GE51 R1009
2
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