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1/16 DIN Universal Process Limit Controller with Illuminated Keys

Temperature/Process Limit Controllers 1/16 Din

$447.42

Item# CN7430

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $447.42
10-24 $425.05
25-49 $402.68
50-99 $380.31
100-499 $357.94
500+ $335.57

In stock

Lead Time (If not in stock): 34 weeks
Temperature/Process Limit Controllers 1/16 Din CN7430 CN7430

This product series currently has an extended lead time. For a potential replacement, please see the CNPT-Series

  • Dual Display
  • FM-Approved Limit
  • Universal Inputs
  • Illuminated Keys

CN7430 Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Control Outputs
Additional Feature
Output Type
Measurement Type
Form Factor
Number of Inputs
Input Type
Supply Voltage Type
Display Type


The CN7400 Series temperature/process FM-approved limit controllers set a new standard in 1/16 DIN limit controls. They have universal inputs (10 thermocouple and 4 RTD types, voltage, and current). Standard features include remote reset capability. Outputs include normally open (form 'A') and normally closed (form 'B') relays. Form 'A' and form 'B' relays can be set up for each setpoint output and logically linked to emulate a form 'C' output.

Input Types Range
K Thermocouple -200 to 2500°F (-129 to 1371°C)
J Thermocouple -100 to 1600°F (-73 to 871°C)
T Thermocouple -350 to 750°F (-212 to 398°C)
E Thermocouple -100 to 1800°F (-73 to 982°C)
N Thermocouple -100 to 2372°F (-73 to 1300°C)
R Thermocouple 0 to 3200°F (-17 to 1760°C)
S Thermocouple 0 to 3200°F (-17 to 1760°C)
B Thermocouple 75 to 3308°F (24 to 1820°C)
L (J DIN) Thermocouple -100 to 1600°F (-73 to 871°C)
C Thermocouple 0 to 4208°F (-17 to 2320°C)
Pt100 RTD (0.00385) -200 to 875°C (-328 to 1607°F)
Pt100 RTD (0.00392) -200 to 875°C (-328 to 1607°F)
RTD, 120 Ω Nickel (0.00628) -80 to 320°C (-112 to 608°F)
RTD, Pt1000 (0.00385) -200 to 875°C (-328 to 1607°F)
0 to 20 mA*, 4 to 20 mA* -1999 to 9999
0 to 10Vdc*, -10 to 10 Vdc*,
-10 to 10 mVdc*
-1999 to 9999
SPECIFICATIONS
Selectable Input: 10 thermocouple, 4 RTD, DC voltage or DC current Display: Two 4-digit, 7-segment, 7.62 mm (0.3') high LEDs
Accuracy: ±0.25% of span, ±1 least significant digit
Supply Voltage: 100 to 240 Vac, nominal, 10 to 15%, 50 to 400 Hz; single phase; 132 to 240 Vdc, nominal, 10 to 20%
Power Consumption: 5 VA max
Operating Temperature: -10 to 55°C (14 to 131°F)
Memory Backup: Non-volatile memory
Relay Control Output Ratings:
    Resistive: SPST, 3 A @ 240 Vac
    Inductive: 1.5 A @ 240 Vac
Weight: 227 g (8 oz)
Panel Cut-Out: 45 +0.6 mm square (1.77 +0.02' square)
Maximum Panel Thickness: 6.35 mm (0.25')
Panel Depth: 133 mm (5.24')
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Rated 4 out of 5 by from Good product Good product. Fairly simple setup for the high limit I used it for.
Date published: 2022-02-15
Rated 5 out of 5 by from Good Process Limit Controller I used this model to replace the discontinued model CN63500-R1-AL2 . I combined 2 NO and NC Relays to create a form C Relay similar to old model, also I did required setup to get expected result. This model has various options in setup pages that can be used in any Process Limit Control Application.
Date published: 2021-07-24
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loading all QA

Can you connect two thermocouples measuring approximately the same temperature in parallel to the input?

Asked by: Marina
Hi Marina, Thank you for the inquiry. Connecting 2 TC's in parallel will not provide reliable indication of temperature. Best regards OMEGA
Answered by: Norwalk AE_RS
Date published: 2024-05-18

Does the CN7430 model come with a high temperature alarm? I need it to sound when temperatures exceed the setpoint.

Asked by: Rish
Thank you for your inquiry. The CN7430 does not have a built in audible alarm but you can use the NO relay to connect an external audible alarm to it.
Answered by: NorwalkAE_SP
Date published: 2023-11-02

Can this be connected to a high limit contactor to shut down all power if set temperature is exceeded?

Asked by: Rish
Yes, the usual purpose of a limit Controller is to do just that to prevent damage to product, equipment or possible injury to personnel.
Answered by: ApplicationsEngineerANB
Date published: 2023-11-08

Is this product suitable for a 4-wire 100-ohm RTD?

Asked by: AZMAH
Thank you for your inquiry. This controller supports 3-Wire RTDs. For 4-Wire RTDs, use the CNi16D or CN16DPT Series controllers.
Answered by: Application Engineer CB
Date published: 2023-11-14
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