CQ4M 03/2 ILME Male insert 3+2p +PE 40 amp crimp Size 21.21

CQ4M 03/2 ILME Male insert 3+2p +PE 40 amp crimp Size 21.21

ILME CQ4M 03/2 is a size 21.21 male CQ-series crimp connector insert combining three 40 A, 400 V main poles, two 10 A, 250 V auxiliary poles and protective earth for compact industrial power and control connections.

SKU: CQ4M03/2Alt SKU: CQ4M03/2MPN: CQ4M 03/2
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Why Choose the ILME CQ4M 03/2 Male Insert?

The ILME CQ4M 03/2 is a compact male industrial connector insert from the ILME CQ series, combining 3 main poles, 2 auxiliary poles and protective earth (3+2P+PE) within the space-saving size 21.21 format. Designed for crimp termination, it provides high-current power connections alongside lower-current auxiliary circuits in one compact heavy-duty connector interface.

The three main contacts are rated at 40 A, 400 V, while the two auxiliary contacts are rated at 10 A, 250 V. This mixed-contact arrangement makes the CQ4M 03/2 particularly useful for machinery and automation applications requiring power and auxiliary control, signalling or monitoring circuits through the same detachable connector.

The insert is supplied without crimp contacts, allowing the appropriate male contacts to be selected according to conductor size. Compatible 40 A contacts accommodate conductors from 1.5–6 mm², while the compact polycarbonate insert provides durable insulation and reliable service in demanding industrial environments.

Key Advantages

  • Combines 3 high-current poles + 2 auxiliary poles + PE in one compact insert.
  • Main contacts rated at 40 A, 400 V for industrial power connections.
  • Auxiliary contacts rated at 10 A, 250 V for control and signalling circuits.
  • Compact size 21.21 format saves installation space.
  • Crimp connection provides reliable, repeatable conductor termination.
  • Separate crimp contacts allow conductor sizes to be matched precisely to the application.

Key Features

  • ILME CQ series male connector insert.
  • 3 main poles + 2 auxiliary poles + PE.
  • Main circuit rating: 40 A, 400 V.
  • Auxiliary circuit rating: 10 A, 250 V.
  • Main circuit impulse withstand voltage: 6 kV.
  • Auxiliary circuit impulse withstand voltage: 4 kV.
  • Crimp termination for secure industrial wiring.
  • Compact 21.21 connector size.
  • Compatible 40 A contacts support 1.5–6 mm² conductors.
  • Designed for at least 500 mating cycles.

Compact Power and Auxiliary Connectivity in One Insert

The ILME CQ4M 03/2 is designed for applications where higher-current power circuits and lower-current auxiliary connections need to pass through the same compact connector. Its three 40 A main poles can handle demanding power circuits, while two dedicated 10 A auxiliary poles provide connections for controls, sensors, interlocks or signalling without requiring a separate connector.

Crimp termination provides a reliable connection method for machinery subject to vibration and repeated servicing. The 40 A male contacts are available for 1.5 mm², 2.5 mm², 4 mm² and 6 mm² conductors and are ordered separately, allowing the connector assembly to be configured for the exact cable requirements of the installation.

Typical Applications

  • Industrial machinery and machine building.
  • Motor and drive connections with auxiliary circuits.
  • Factory automation and production equipment.
  • Robotics and automated machinery.
  • Compact power and control interfaces.
  • Packaging and processing equipment.
  • Conveyors and material handling systems.
  • Industrial equipment requiring combined power, control and protective earth connectivity.

Technical Specifications

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Connection Crimp
Device Type Insert / Module
Frame Size 21.21
Housing Material Thermoplastic
Product Series ILME CQ
Contacts 2P+E
Contact Gender Male
IP Rating IP20, IP65, IP66, IP68, IP69
HS Code 85389099
Country of Manufacture Italy
Manufacturer ILME
Series CQ
Model CQ4M 03/2
SKU CQ4M03/2
Product type Male industrial connector insert
Gender Male
Connection type Crimp connection
Main poles 3 poles + PE
Auxiliary poles 2 poles
Main contact rated current 40 A
Main contact rated voltage 400 V
Main rated impulse withstand voltage 6 kV
Auxiliary contact rated current 10 A
Auxiliary contact rated voltage 250 V
Auxiliary rated impulse withstand voltage 4 kV
Pollution degree 3
Rated voltage according to UL/CSA 600 V
Size 21.21
40 A contact conductor range 1.5–6 mm² / AWG 16–10
40 A contact resistance ≤0.3 mΩ
10 A contact resistance ≤3 mΩ
Insulation resistance ≥10 GΩ
Mating cycles ≥500
Operating temperature -40 °C to +125 °C
Protection rating IP20 without enclosure; IP65/IP66/IP68/IP69 with a suitable enclosure
Main material Polycarbonate (PC)
Gasket material NBR
Colour RAL 7032 grey
Flammability rating UL 94 V-0
Weight 16 g
Reference standard EN 61984
Certifications DNV, BV, EAC
EAN 8015747269513

Frequently Asked Questions

What is the ILME CQ4M 03/2 used for?

The CQ4M 03/2 is a male industrial connector insert designed to combine three high-current power connections, two auxiliary connections and protective earth within a compact size 21.21 heavy-duty connector assembly.

What are the electrical ratings of the CQ4M 03/2?

The three main poles are rated at 40 A, 400 V with a 6 kV impulse withstand voltage, while the two auxiliary poles are rated at 10 A, 250 V with a 4 kV impulse withstand voltage.

Are crimp contacts included with the CQ4M 03/2?

No. The CQ4M 03/2 insert is supplied without the crimp contacts. The appropriate male contacts are ordered separately according to the required circuit and conductor cross-section.

What conductor sizes can the 40 A contacts accept?

Compatible ILME 40 A male crimp contacts are available for 1.5 mm², 2.5 mm², 4 mm² and 6 mm² conductors, corresponding to AWG 16, 14, 12 and 10 respectively.

What size enclosure does the CQ4M 03/2 require?

The CQ4M 03/2 uses the compact ILME size 21.21 format and should be installed in a compatible enclosure designed for this connector size and insert configuration.

Trusted Industrial Connectivity from ILME

ILME CQ compact connector inserts provide machine builders, automation engineers and industrial installers with space-efficient, dependable connectivity for applications requiring power, auxiliary control and protective earth connections within robust detachable industrial connector systems.

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