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Specification & Description
| Specification | Description |
|---|---|
| Part Number | CA3KN31BD |
| Manufacturer | Schneider |
| Series | TeSys CAK |
| Product Type | Control Relay |
| Contact Composition | 3 Normally Open (NO); 1 Normally Closed (NC) |
| Rated Operational Voltage (Ue) | Up to 690 V AC, 400 Hz |
| Control Circuit Voltage (Uc) | 24 V DC |
| Conventional Free Air Thermal Current (Ith) | 10 A at ≤ 50°C (122°F) |
| Rated Making Capacity (Irms) | 110 A conforming to IEC 60947 |
| Associated Fuse Rating | 10 A gG conforming to IEC 60947 and VDE 0660 |
| Rated Insulation Voltage (Ui) | 690 V conforming to IEC 60947, 750 V conforming to VDE 0110 group C, 600 V conforming to CSA C22.2 No 14 |
| Mounting Support | Plate, Rail |
| Connection Terminals | Screw clamp terminals for cables 1.5...4 mm² (solid) and 0.75...4 mm² (flexible) |
| Tightening Torque | 1.3 N.m with screwdriver flat Ø 6 mm or Philips No 2 |
| Operating Time | 10 ms coil de-energisation and NO opening, 25...35 ms coil energisation and NC opening |
| Mechanical Durability | 20 Million cycles |
| Maximum Operating Rate | 10,000 cycles per hour |
| Immunity to Microbreaks | 2 ms |
| Inrush Power | 3 W at 20°C (68°F) |
| Hold-in Power Consumption | 3 W at 20°C (68°F) |
| Heat Dissipation | 3 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 |
| IP Degree of Protection | IP2x |
| Ambient Air Temperature for Operation | -25...50°C (-13...122°F) |
| Ambient Air Temperature for Storage | -50...80°C (-58...176°F) |
| Operating Altitude | Up to 2000 m without derating |
| Flame Retardance | V1 conforming to UL 94 |
| 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 |
| Standards | BS 5424, IEC 60947, NF C 63-140, VDE 0660 |
| Product Certifications | CSA, UL |
The Schneider TeSys CAK Series Control Relay, with the part number CA3KN31BD, is a robust and reliable component designed for seamless integration into control circuits. This control relay is engineered to facilitate the management of electrical circuits within a wide array of industrial applications. It features a 24 V dc coil and offers a contact configuration of 3NO (Normally Open) and 1NC (Normally Closed), making it versatile for various switching operations.
Rated for use in systems with operational voltages up to 690 V ac and suitable for frequencies up to 400 Hz, the CA3KN31BD is built to handle a conventional free air thermal current of 10 A at temperatures up to 50°C. Its associated fuse rating is 10 A gG in accordance with IEC and VDE standards, ensuring protection against overcurrents.
The compact design, with dimensions of 45 x 57 x 58 mm, allows for DIN rail mounting, providing ease of installation and maintenance. The screw clamp terminals accommodate a range of cable sizes and types, ensuring a secure and reliable connection.
Constructed to meet international standards such as BS 5424, IEC 60947, and VDE 0660, and with certifications from CSA and UL, this control relay is compliant with stringent quality and safety benchmarks. It also boasts an IP2X degree of protection, safeguarding against the ingress of solid objects and ensuring continued performance in diverse environmental conditions.
The CA3KN31BD is part of Schneider Electric's Green Premium product range, reflecting a commitment to sustainability without compromising on performance. It is REACh and RoHS compliant, indicating that it is free from hazardous substances and is designed with environmental considerations in mind.
This control relay is a testament to Schneider Electric's dedication to delivering high-quality, durable, and environmentally conscious components for modern industrial applications.
Commonly Asked Questions
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Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.
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Frequently Asked Questions
What is the utilisation category for this control relay?
The control relay is suitable for utilisation categories AC-15 and DC-13, making it versatile for control circuit applications.
Can this relay be mounted on a DIN rail?
Yes, the relay is designed for DIN rail mounting, which facilitates easy installation and maintenance.
What type of connections does this relay support?
The relay supports screw clamp terminals for solid and flexible cables, providing a secure and reliable connection.
What is the control circuit voltage of this relay?
The control circuit voltage for the CA3KN31BD relay is 24 V DC, standard for DC control circuits.
What is the rated operational voltage for this relay?
The rated operational voltage for the relay is up to 690 V for systems up to 400 Hz.
What is the thermal current rating of this relay?
The conventional free air thermal current rating (Ith) for this relay is 10 A at a temperature of up to 50°C.
What is the IP degree of protection for this relay?
The relay has an IP degree of protection of IP2X, offering protection against solid objects larger than 12.5 mm.
What are the dimensions of this relay?
The dimensions of the relay are 45 mm in width, 57 mm in depth, and 58 mm in height.
What is the mechanical durability of this relay?
The mechanical durability of the relay is rated at 20 million cycles, indicating a long operational lifespan under normal conditions.
Is this relay compliant with environmental regulations?
Yes, the relay is compliant with several environmental regulations, including REACh, EU RoHS, and it is a Green Premium product.
