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CKSF04 Ilme Female insert 4 pole and earth 10 amp spring Size 21.21
ILME CKSF04 is a size 21.21 female industrial connector insert with 4 poles plus protective earth, a 10 A 400 V rating and spring terminals for 0.14–2.50 mm² conductors.
£4.24
Why Choose the ILME CKSF04 Female Insert?
The ILME CKSF04 is a compact and reliable female industrial connector insert designed for detachable electrical connections in machinery, automation and control equipment. Part of the ILME CKS series, this size 21.21 insert provides 4 poles plus protective earth (4P+PE) and uses spring terminal technology for fast, secure conductor termination.
Rated at 10 A and 400 V, the CKSF04 provides dependable electrical performance for industrial power and control circuits. Its turned silver-plated copper-alloy contacts provide reliable electrical conductivity, while the polycarbonate insulating body offers robust electrical insulation for demanding industrial connector applications.
The spring terminals accommodate conductors from 0.14–2.50 mm² (AWG 26–14), providing flexibility for a wide range of industrial wiring requirements. With a rated impulse withstand voltage of 4 kV, pollution degree 3 and compatibility with size 21.21 connector enclosures, the CKSF04 provides a compact solution for reliable multipole machine connections.
Key Advantages
- Compact 4 poles + PE female industrial connector insert.
- 10 A rated current for industrial power and control applications.
- 400 V rated voltage for industrial electrical systems.
- Spring terminal connection provides fast and secure conductor termination.
- Accepts conductors from 0.14–2.50 mm² (AWG 26–14).
- Turned silver-plated copper-alloy contacts provide dependable electrical connectivity.
Key Features
- ILME CKS series female connector insert.
- 4 poles + protective earth (4P+PE).
- 10 A rated current.
- 400 V rated voltage.
- 4 kV rated impulse withstand voltage.
- Pollution degree 3.
- Size 21.21 compact connector format.
- Spring socket terminals for 0.14–2.50 mm² / AWG 26–14 conductors.
Reliable Spring-Terminal Connections for Industrial Machinery
Industrial connector inserts such as the ILME CKSF04 provide a removable electrical interface between machinery, control panels and external equipment. The four electrical contacts plus dedicated protective-earth connection allow multiple conductors to be connected through one compact rectangular connector assembly, simplifying machine installation, servicing and component replacement.
The CKSF04 uses spring terminal technology to provide secure conductor retention across a broad range of wire sizes without relying on conventional screw termination. When installed in a compatible ILME size 21.21 hood or housing, the insert forms part of a robust multipole connector system suitable for machine building, factory automation and industrial power and control applications.
Typical Applications
- Industrial machinery and factory automation systems.
- Motor, actuator and equipment connections.
- Control panels and electrical cabinets.
- Machine tools and production equipment.
- Conveyor and material handling systems.
- OEM machinery requiring detachable power or control connections.
Technical Specifications
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| Connection | Spring / axial screw | |
|---|---|---|
| Device Type | Insert / Module | |
| Frame Size | 21.21 | |
| Housing Material | Thermoplastic | |
| Product Series | ILME C-Type | |
| Contacts | 4 poles | |
| Contact Gender | Female | |
| Poles | 4-pole | |
| Manufacturer | ILME | |
| Series | CKS | |
| Model | CKSF04 | |
| Alternative part number | CKSF 04 | |
| Product type | Industrial connector insert | |
| Gender | Female | |
| Number of poles | 4 poles + PE | |
| Number of contacts | 5 contacts including PE | |
| Connection type | Spring terminal connection | |
| Contact type | Spring socket | |
| Rated current | 10 A | |
| Rated voltage | 400 V | |
| Rated voltage according to UL/CSA | 600 V | |
| Rated impulse withstand voltage | 4 kV | |
| Pollution degree | 3 | |
| Size | 21.21 | |
| Wire cross-section | 0.14–2.50 mm² | |
| AWG size | 26–14 | |
| Contact construction | Turned silver-plated | |
| Contact material | Copper alloy | |
| Main material | Polycarbonate (PC) | |
| Colour | RAL 7032 grey | |
| Reference standard | EN 61984:2009-06 | |
| Certifications | CSA, CQC, DNV, BV, EAC | |
| UL category | ECBT2 | |
| RoHS conformity | Compliant with exemption 6(c) | |
| EAN | 8015747164405 |
Frequently Asked Questions
What is the ILME CKSF04 used for?
The CKSF04 is a female industrial connector insert used to provide detachable multipole power and control connections in machinery, automation equipment and industrial electrical installations.
How many poles does the ILME CKSF04 have?
The CKSF04 provides 4 poles plus a protective earth (4P+PE), giving five electrical contacts including the PE connection.
What are the electrical ratings of the CKSF04?
The ILME CKSF04 has a rated current of 10 A, a rated voltage of 400 V and a rated impulse withstand voltage of 4 kV.
What wire sizes can be connected to the CKSF04?
The spring terminals accept conductors with cross-sectional areas from 0.14–2.50 mm², corresponding to AWG 26–14.
What type of terminals does the ILME CKSF04 use?
The CKSF04 uses spring terminal connections with female spring socket contacts, providing secure conductor retention and efficient wiring for industrial connector assemblies.
Trusted for Industrial Connectivity
ILME CKS series connector inserts provide compact and dependable multipole electrical connections for industrial machinery, automation equipment and control systems, combining spring terminal technology with robust construction and reliable electrical performance.
