CQ4M03 Ilme Male insert 3 pole and earth 40 amp crimp Size 21.21

CQ4M03 Ilme Male insert 3 pole and earth 40 amp crimp Size 21.21

ILME CQ4M03 is a compact CQ series size 21.21 male heavy-duty connector insert with 3 poles plus protective earth, a 40 A 400 V rating and crimp termination using separately ordered contacts.

SKU: CQ4M03Alt SKU: CQ4M 03MPN: CQ4M03
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Why Choose the ILME CQ4M03 Male Insert?

The ILME CQ4M03 is a compact 3-pole plus protective earth male connector insert designed for high-current heavy-duty industrial connections. Part of the ILME CQ series, it combines a 40 A, 400 V rating with crimp termination in the space-saving size 21.21 format.

The CQ4M03 is supplied without crimp contacts, allowing the appropriate ILME 40 A male contacts to be selected separately for the conductor size required. Compatible silver-plated CXMA crimp contacts are available for conductors from 1.5–10 mm², providing flexibility for industrial power wiring while maintaining a secure and repeatable termination method.

With a 6 kV rated impulse withstand voltage, pollution degree 3 and mechanical durability of at least 500 mating cycles, the CQ4M03 provides dependable connectivity for industrial machinery and automation equipment. When fitted into a suitable ILME size 21.21 enclosure, the connector assembly can provide high levels of ingress protection for demanding operating environments.

Key Advantages

  • 3 poles plus protective earth for compact three-phase or multipole power connections.
  • 40 A, 400 V rating for demanding industrial power circuits.
  • 6 kV impulse withstand voltage with pollution degree 3.
  • Crimp termination provides secure and repeatable conductor connections.
  • Compatible contacts cover conductor sizes from 1.5–10 mm².
  • Compact size 21.21 format reduces connector installation space.
  • Designed for at least 500 mating cycles for reliable repeated connection and disconnection.

Key Features

  • ILME CQ series heavy-duty connector insert.
  • Male insert configuration.
  • 3 poles + PE.
  • 40 A rated current.
  • 400 V rated voltage.
  • Crimp connection.
  • Supplied without crimp contacts.
  • Size 21.21 connector format.
  • Maximum cable diameter of 7.5 mm.
  • Operating temperature range from -40 °C to +125 °C.

Reliable High-Current Connections in a Compact Format

Industrial machinery often requires detachable power connections capable of carrying substantial current while using minimal installation space. The ILME CQ4M03 combines three power contacts with a dedicated protective-earth connection in the compact size 21.21 format, providing a practical interface for machinery, motors and industrial power distribution.

The separate crimp-contact system allows the appropriate contact to be selected for conductors from 1.5–10 mm² and securely terminated before insertion into the connector body. When paired with the corresponding female insert and installed in a compatible ILME size 21.21 enclosure, the CQ4M03 forms part of a robust heavy-duty connector system for reliable equipment installation and servicing.

Typical Applications

  • Industrial machinery and production equipment.
  • Three-phase motor and machine connections.
  • Factory automation systems.
  • Electrical control panels and cabinets.
  • Conveyor and material handling equipment.
  • Compact high-current detachable power interfaces.

Technical Specifications

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Connection Crimp
Device Type Insert / Module
Frame Size 21.21
Housing Material Thermoplastic
Product Series ILME CQ
Contacts 3 poles
Contact Gender Male
Poles 3-pole
IP Rating IP20, IP44, IP66, IP67, IP68, IP69
HS Code 85389099
Country of Manufacture Italy
Manufacturer ILME
Series CQ
Model CQ4M03
Manufacturer part number CQ4M 03
Product type Heavy-duty connector insert
Gender Male
Number of poles 3 poles + PE
Connection type Crimp connection
Contacts supplied No, crimp contacts ordered separately
Size 21.21
Insert mounting dimensions 21 × 21 mm
Rated current 40 A
Rated voltage 400 V
Rated impulse withstand voltage 6 kV
Pollution degree 3
Rated voltage according to UL/CSA 600 V
Compatible contact conductor sizes 1.5, 2.5, 4, 6 and 10 mm²
Compatible AWG sizes AWG 16, 14, 12, 10 and 8
Maximum cable diameter 7.5 mm
Contact type Male crimp contacts, ordered separately
Contact finish Silver-plated
Main material Polycarbonate
Protection rating IP20 without enclosure; IP44 / IP66 / IP67 / IP68 / IP69 with suitable enclosure
Mating cycles ≥500
Insulation resistance ≥10 GΩ
Contact resistance ≤0.3 mΩ
Operating temperature -40 °C to +125 °C
UL 94 flammability rating V-0
Weight 15.4 g
EAN 8015747222846

Frequently Asked Questions

What is the ILME CQ4M03 used for?

The ILME CQ4M03 is a 3-pole plus earth male heavy-duty connector insert designed for compact high-current power connections in industrial machinery, motors, automation equipment and electrical systems.

What are the electrical ratings of the ILME CQ4M03?

The CQ4M03 is rated at 40 A and 400 V, with a rated impulse withstand voltage of 6 kV and pollution degree 3. Its UL/CSA rated voltage is 600 V.

Are crimp contacts supplied with the ILME CQ4M03?

No. The CQ4M03 is supplied without crimp contacts. Compatible ILME 40 A male crimp contacts must be selected and ordered separately.

What conductor sizes can be used with the CQ4M03?

Compatible ILME silver-plated male crimp contacts are available for 1.5, 2.5, 4, 6 and 10 mm² conductors, corresponding to AWG 16 through AWG 8.

What connector size is the ILME CQ4M03?

The CQ4M03 uses the compact ILME size 21.21 format and should be paired with compatible size 21.21 connector components.

Trusted for Compact High-Current Industrial Connections

ILME CQ connector inserts provide robust multipole connectivity where compact dimensions and high current capacity are essential, with the CQ4M03 delivering a 40 A crimp connection for three poles plus protective earth in the space-saving size 21.21 format.

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