Product Descriptions

NI-9242: 250 Vrms L-N, 400 Vrms L-L, 50 kS/s/ch, 24-Bit, 3-Phase C Series Voltage Input Module

NI-9244: 400 Vrms L-N, 800 Vrms L-L, 50 kS/s/ch, 24-Bit, 3-Phase C Series Voltage Input Module

Physical Characteristics

Weight

NI-9242 with Screw Terminal

150 g (5.3 oz)

NI-9244 with Screw Terminal

150 g (5.3 oz)

Dimensions

Visit ni.com/dimensions and search by module number.

Screw-terminal wiring

Gauge

0.2 mm2 to 3.0 mm2 (24 AWG to 12 AWG) copper conductor wire

Wire strip length

7 mm (0.28 in.) of insulation stripped from the end

Temperature rating

90 °C minimum

Torque for screw terminals

0.5 N · m to 0.6 N · m (4.4 lb · in. to 5.3 lb · in.)

Wires per screw terminal

One wire per screw terminal

Ferrules

0.25 mm2 to 2.5 mm2

Connector securement

Securement type

Screw flanges provided

Torque for screw flanges

0.5 N · m (4.42 lb · in.)

Environmental

Temperature

Operating

-40 °C to 70 °C

Storage

-40 °C to 85 °C

Ingress protection

IP40

Humidity

Operating

10% RH to 90% RH, noncondensing

Storage

5% RH to 95% RH, noncondensing

Pollution Degree

2

Maximum altitude

5,000 m

Indoor use only.

Hazardous Locations

Explosive atmospheres rating

Ex ec IIC T4 Gc

CCC certificate number

2021312310000312

Safety Guidelines

Operate the product only as described in this document.

  • 1378 Caution—This icon denotes a caution, which advises you to consult documentation where this symbol is marked.
  • 1378 Hazardous Voltage—This icon denotes a warning advising you to take precautions to avoid electrical shock with the product.
    • Caution Do not operate this product in a manner not specified in this document. Product misuse can result in a hazard. You can compromise the safety protection built into the product if the product is damaged in any way. If the product is damaged, return it to NI for repair.

    Safety Guidelines for Hazardous Voltages

    If hazardous voltages are connected to the device, take the following precautions. A hazardous voltage is a voltage greater than 42.4 V peak voltage or 60 V DC to earth ground.

    Caution Ensure that hazardous voltage wiring is performed only by qualified personnel adhering to local electrical standards.
    Caution All wiring must be insulated for the highest voltage used.
    Caution Do not mix hazardous voltage circuits and human-accessible circuits on the same module.
    Caution Ensure that devices and circuits connected to the module are properly insulated from human contact.
    Caution (NI-9242) You must use the NI-9967 connector backshell kit to ensure that the terminals are not accessible.
    Caution (NI-9244) You must use the NI-9969 connector backshell kit to ensure that the terminals are not accessible.

    Safety Guidelines for Hazardous Locations

    These products have been evaluated as Ex ec IIC T4 Gc equipment and are CCC certified. Each product is suitable for use within ambient temperatures of -40 °C ≤ Ta ≤ 70 °C in either nonhazardous locations or Zone 2 hazardous locations. If you are using the products in Gas Group IIC hazardous locations, you must use the device in an NI chassis that has been evaluated as Ex ec IIC T4 Gc equipment.

    Follow these guidelines if you are installing the product in a potentially explosive environment. Not following these guidelines may result in serious injury or death.

    Caution Do not disconnect I/O-side wires or connectors unless power has been switched off or the area is known to be nonhazardous.
    Caution Do not remove modules unless power has been switched off or the area is known to be nonhazardous.
    Caution Substitution of components may impair suitability for Zone 2.
    Caution The system shall only be used in an area of not more than Pollution Degree 2, as defined in IEC/EN 60664-1.
    Caution The system shall be mounted in a CCC-certified enclosure with a minimum ingress protection rating of at least IP54 as defined in GB/T3836.1.
    Caution The enclosure must have a door or cover accessible only by the use of a tool.

    Safety Voltages

    NI-9242

    Connect only voltages that are within the following limits:

    Maximum working voltage

    250 V RMS L-N

    400 V RMS L-L

    Input voltage range (AIx-to-Ground, Neutral-to-Ground, AIx-to-Neutral)

    Typical

    500 V peak

    Minimum

    497 V peak

    Overvoltage withstand

    500 V RMS continuous

    600 V RMS for 10 s

    Maximum working voltage, channel-to earth ground

    Continuous

    250 V RMS, Measurement Category III

    Withstand

    8,000 V peak

    Caution Do not connect the product to signals or use for measurements within Measurement Category IV.

    NI-9244

    Connect only voltages that are within the following limits:

    Maximum working voltage

    400 V RMS L-N

    800 V RMS L-L

    Input voltage range (AIx-to-Ground, Neutral-to-Ground, AIx-to-Neutral)

    Typical

    997.5 V peak

    Minimum

    992 V peak

    Overvoltage withstand

    800 V RMS continuous

    1,000 V RMS for 1 s

    Maximum working voltage, channel-to-earth ground

    Continuous, up to 2,000 m altitude

    400 V RMS, Measurement Category III

    Continuous, up to 5,000 m altitude

    400 V RMS, Measurement Category II or 300 V RMS,Measurement Category III

    Withstand

    8,000 V peak

    Zone 2 hazardous locations applications

    Channel-to-earth ground

    300 V RMS, Measurement Category III

    Caution Do not connect the product to signals or use for measurements within Measurement Category IV.
    Caution Do not connect the product to signals or use for measurements within Measurement Categories III or IV when using the product above 2,000 m altitude with Channel-to-earth ground voltages above 300 V RMS.

    Installing C Series Modules

    Verify that power is not connected to the I/O connector(s) on the C Series module.

    Removing C Series Modules

    Verify that power is not connected to the I/O connector(s) on the C Series module before you remove a module from the chassis.

    Safety Compliance and Hazardous Locations Standards

    This product is designed to meet the requirements of the following electrical equipment safety standards for measurement, control, and laboratory use:

    • IEC 61010-1
    • IEC 60079-0, IEC 60079-7
    • GB/T3836.1, GB/T3836.3
    Note For safety certifications, refer to the product label or the Product Certifications and Declarations section.

    Product Certifications and Declarations

    To obtain product certifications and the DoC for NI products, visit ni.com/product-certifications, search by model number, and click the appropriate link.

    Worldwide Support and Services

    NI corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas, 78759-3504, USA.