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Specification & Description
| Specification | Description |
|---|---|
| Part Number | CA4KN40BW3 |
| Manufacturer | Schneider |
| Series | TeSys K |
| Product Type | Control Relay |
| Contact Composition | 4 Normally Open (NO) |
| Rated Operational Voltage | <= 690 V, <= 400 Hz |
| Control Circuit Type | DC Low Consumption |
| Control Circuit Voltage | 24 V DC |
| Coil Technology | Built-in Bidirectional Peak Limiting Diode Suppressor |
| Conventional Free Air Thermal Current | 10 A at <= 50 °C |
| Rated Making Capacity | 110 A conforming to IEC 60947 |
| Associated Fuse Rating | 10 A gG conforming to IEC 60947, 10 A gG conforming to VDE 0660 |
| Rated Insulation Voltage | 690 V conforming to IEC 60947, 750 V conforming to VDE 0110 group C, 690 V conforming to BS 5424, 600 V conforming to CSA C22.2 No 14 |
| Mounting Support | Plate, Rail |
| Connections - Terminals | Screw Clamp Terminals for cables 1.5...4 mm² (solid and flexible) |
| Tightening Torque | 1.3 N.m - with screwdriver flat Ø 6 mm, Philips No 2, Pozidriv No 2 |
| Operating Time | 10...20 ms coil de-energisation and NO opening, 30...40 ms coil energisation and NO closing |
| Mechanical Durability | 30 Mcycles |
| Maximum Operating Rate | 6000 cyc/h |
| Immunity to Microbreaks | 2 ms |
| Inrush Power | 1.8 W at 20 °C |
| Hold-in Power Consumption | 1.8 W at 20 °C |
| Heat Dissipation | 1.8 W |
| Minimum Switching Voltage | 17 V |
| Minimum Switching Current | 5 mA |
| Non-overlap Distance | 0.5 mm |
| Insulation Resistance | > 10 MOhm |
| Dimensions (Height x Width x Depth) | 58 mm x 45 mm x 57 mm |
| Net Weight | 0.235 kg |
| Standards | EN/IEC 60947-4-1, GB/T 14048.4, UL 60947-4-1, CSA C22.2 No 60947-4-1, JIS C8201-4-1 |
| Product Certifications | CBScheme, CCC, UL, CSA, EAC, CE, UKCA |
| IP Degree of Protection | IP2X |
| Protective Treatment | TC conforming to IEC 60068 |
| Ambient Air Temperature for Operation | -25…50 °C |
| Ambient Air Temperature for Storage | -50…80 °C |
| Operating Altitude | 2000 m without derating |
| Flame Retardance | V1 conforming to UL 94, Requirement 2 conforming to NF F 16-101, Requirement 2 conforming to NF F 16-102 |
| Mechanical Robustness | Vibrations: contactor open 2 Gn, 5...300 Hz; contactor closed 4 Gn, 5...300 Hz; Shocks: contactor open 10 Gn for 11 ms; contactor closed 15 Gn for 11 ms |
The Schneider CA4KN40BW3 is a high-performance control relay from the TeSys K series, designed to facilitate the management of control circuits within a diverse range of industrial applications. This relay is engineered to operate with a 24 V DC low consumption coil, making it an energy-efficient choice for modern electrical systems.
With its 4 normally open (NO) contacts and a rated operational voltage of up to 690 V at frequencies up to 400 Hz, the CA4KN40BW3 is a versatile component suitable for a wide array of control circuit tasks. The relay is equipped with a built-in bidirectional peak limiting diode suppressor, enhancing its reliability and longevity by protecting against voltage spikes.
The unit boasts a conventional free air thermal current of 10 A at 50°C and an impressive rated making capacity of 110 A conforming to IEC 60947 standards. This ensures the relay can handle high inrush currents without compromise. Additionally, it is compatible with 10 A gG fuses as per IEC 60947 and VDE 0660, providing further assurance of safe operation.
Mounting and installation are made straightforward with options for both DIN rail and plate mounting, catering to various installation preferences. The screw clamp terminals are designed to accommodate cables ranging from 1.5 to 4 mm² in solid form, and 0.75 to 4 mm² when flexible, with or without cable ends, ensuring secure and reliable connections.
The CA4KN40BW3 control relay is compliant with several international standards, including EN/IEC 60947-4-1, GB/T 14048.4, UL 60947-4-1, CSA C22.2 No 60947-4-1, and JIS C8201-4-1, reflecting its suitability for global use. It also holds product certifications such as CB Scheme, CCC, UL, CSA, EAC, CE, and UKCA, further testifying to its quality and safety.
With an IP2X degree of protection, the relay is safeguarded against the ingress of solid objects, ensuring reliable performance in various environmental conditions. Its robust construction is evidenced by its ability to withstand vibrations and shocks as per IEC 60068-2-6 and IEC 60068-2-27 standards, respectively.
The Schneider CA4KN40BW3 control relay is a testament to Schneider Electric's commitment to quality, reliability, and efficiency, making it an excellent choice for those seeking a dependable solution for their control circuit needs.
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Frequently Asked Questions
What is the utilisation category for this control relay?
The control relay falls under the utilisation categories AC-15 for alternating current and DC-13 for direct current applications.
Can this relay be mounted on a DIN rail?
Yes, it is designed for both DIN rail and plate mounting, providing flexibility for various installation requirements.
What is the rated operational voltage for this relay?
The rated operational voltage for the CA4KN40BW3 is less than or equal to 690 V for systems up to 400 Hz.
What type of control circuit is used in this relay?
This relay utilises a DC low consumption control circuit, which is energy-efficient and suitable for various control applications.
What is the coil technology used in this relay?
The relay features a built-in bidirectional peak limiting diode suppressor coil technology.
What is the conventional free air thermal current rating?
The conventional free air thermal current rating, or [Ith], is 10 A at 50°C.
What are the dimensions of this control relay?
The dimensions of the relay are 58 mm in height, 45 mm in width, and 57 mm in depth.
What is the mechanical durability of this relay?
The mechanical durability of the relay is rated at 30 million cycles, indicating a long operational lifespan under normal conditions.
What is the IP degree of protection for this relay?
The relay has an IP2X degree of protection, ensuring a certain level of protection against the ingress of solid foreign objects.
What is the operating altitude limit for this relay?
The relay can operate without derating at altitudes up to 2000 meters above sea level.
