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Specification & Description
| Specification | Description |
|---|---|
| Part Number | CA3KN31BD3 |
| Manufacturer | Schneider |
| Product Range | TeSys |
| Product or Component Type | Control Relay |
| Device Short Name | CA3K |
| Contactor Application | Control Circuit |
| Utilisation Category | DC-13, AC-15 |
| Pole Contact Composition | 3 NO + 1 NC |
| Rated Operational Voltage | <= 690 V, <= 400 Hz |
| Control Circuit Type | DC Standard |
| 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 | Rail, Plate |
| Connections - Terminals | Screw Clamp Terminals for cables 1.5…4 mm² solid and flexible with or without cable end, Screw Clamp Terminals for cables 0.34…1.5 mm² flexible with or without cable end |
| Tightening Torque | 1.3 N.m for screw clamp terminals |
| Control Circuit Voltage Limits | Operational 0.8...1.15 Uc at 50°C, Drop-out 0.1...0.75 Uc at 50°C |
| Operating Time | 10 ms coil de-energisation and NO opening, 30...40 ms coil energisation and NO closing, 15 ms coil de-energisation and NC closing, 25...35 ms coil energisation and NC opening |
| Mechanical Durability | 20 Mcycles |
| Maximum Operating Rate | 10000 cyc/h |
| Immunity to Microbreaks | 2 ms |
| Inrush Power in W | 3 W at 20°C |
| Hold-in Power Consumption in W | 3 W at 20°C |
| 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 (H x W x D) | 58 mm x 45 mm x 57 mm |
| Net Weight | 0.225 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 | CB Scheme, 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 CA3KN31BD3 is a high-performance control relay from the renowned TeSys K series, designed to facilitate the management of electrical circuits within a wide array of industrial applications. This compact and robust relay is engineered to operate with a control circuit voltage of 24 V dc and can handle rated operational voltages up to 690 V ac, making it suitable for a diverse range of operating environments.
With a configuration of 3 normally open (NO) and 1 normally closed (NC) contacts, it offers flexibility in controlling various types of loads. The relay's utilisation categories, DC-13 and AC-15, indicate its capability to reliably switch both DC and AC loads, which is essential for applications that require precise control of power.
The CA3KN31BD3 features a built-in bidirectional peak limiting diode suppressor, enhancing the protection against voltage spikes, thus ensuring the longevity of the relay and the safety of the circuit. The conventional free air thermal current is rated at 10 A at 50°C, with a rated making capacity of 110 A conforming to IEC 60947 standards, which speaks to its ability to handle high inrush currents.
Mounting and installation are made easy with options for rail or plate support, and the screw clamp terminals accommodate a range of wire sizes for solid or flexible cables, ensuring a secure and reliable connection. The relay's mechanical durability is demonstrated by its ability to withstand 20 million cycles, and it can operate at a maximum rate of 10,000 cycles per hour, making it a reliable choice for high-demand applications.
The compact dimensions of 45 x 57 x 58 mm allow for efficient use of space inside control panels, and the IP2x degree of protection ensures that the relay is safeguarded against the ingress of solid objects.
Designed with sustainability in mind, the Schneider CA3KN31BD3 is a Green Premium product, complying with the latest environmental standards and regulations, including REACh and EU RoHS, ensuring that it is free from harmful substances and supports a responsible end-of-life disposal process.
Overall, the Schneider CA3KN31BD3 control relay is a versatile and reliable component that offers both performance and durability for industrial control applications.
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Frequently Asked Questions
What is the control voltage for this relay?
The control relay operates with a control circuit voltage of 24 V dc.
Can this relay be used in high-frequency applications?
Yes, the relay is suitable for applications with a frequency up to 400 Hz.
What are the dimensions of the relay?
The dimensions of the relay are 45 mm in width, 57 mm in depth, and 58 mm in height.
What is the thermal current rating for this relay?
The conventional free air thermal current rating (Ith) for the relay is 10 A at less than 50°C.
What type of contacts does the relay have?
The relay has a contact composition of 3 Normally Open (NO) and 1 Normally Closed (NC).
What is the rated operational voltage for this relay?
The rated operational voltage for the relay is up to 690 V ac.
What is the mechanical durability of the relay?
The mechanical durability of the relay is rated at 20 million cycles.
What is the insulation resistance of the relay?
The insulation resistance of the relay is greater than 10 MOhm.
What standards does the relay comply with?
The relay complies with international standards such as 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.
What is the IP degree of protection for this relay?
The relay has an IP degree of protection of IP2x.
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