C3-R2024D

1.3 Industrial Relays - pluggable C3-R2x 2 pole | changeover contact | remanance Maximum contact load Recommended minimum contact load 10 A/250 V 10 A/30 V 10 mA/10 V 5 mA/5 V Contacts Material Standard Code 0 Optional Code 8 Rated Load Max. inrush current (20 ms) Switching voltage max. AC load fig. 1 DC load AgNi AgNi + 5 µ Au 10 A 30 A 250 V 2.5 kVA see fig. 2 Coil Coil resistance ON pulse power OFF pulse power Pull-in ON OFF AC-1 0.5 A/110 V DC-1 DC-1 0.2 A/220 V DC-1 Code 0 Code 8 Connection diagram see table; tolerance ± 10 % 1.5 VA/W 0.5 VA/W ≤ 0.8 x UN 4 3 8 9 1 11 3 2 6 A1 A3 ON (+) OFF (+) A2 (-) 10 fig. 1 AC voltage endurance + + A3 + + A2 A2 DC DC A1 Coil table 10 6 V AC mA ON mA OFF V DC mA ON mA OFF A1 24 75 12 12 125 41 48 38 6 24 63 21 115 16 2.5 48 31 10 230 8 1.3 110 14 4.5 A3 A3 A2 A2 AC AC Insulation Contact open Contact/contact Contact/coil Insulation resistance at 500 V Insulation, IEC 61810-1 1000 V 2.5 kV 2.5 kV ≥1 G Ω 2.5 kV Specifications Ambient temperature operation/storage Minimum pulse length for ON OFF Mechanical life ops DC voltage endurance at rated load Max. switching frequency at rated load Weight -40.…60 ºC /-40 … 80 °C (no ice) 50 ms 10 Mill. ≥100 000 switching cycles 1200/h 81 g Product References V AC 50 Hz/60 Hz: 24, 48, 115, 230 V DC 12, 24, 48, 110 Other voltages on request AC-1AC1 Cos ϕAC15 0.4 switching cycles x10 6 A1 A3 AC1 AC15 1 0.1 kVA 0.5 1 1.5 2 2.5 fig. 2 DC load limit curve DC1 DC13 10 DC-1 DC1 L/R 40 ms DC13 11 Amps. Internal Diagram: A1 0.1 Volt 50 C3-R20N/AC … V C3-R28N/AC … V C3-R20N/DC … V C3-R28N/DC … V 100 150 200 Dimensions (mm) 31 35 "..."List Coil Voltage to complete Product References 34 Accessories Socket Blanking Plug 52 32 11 A1 A2 10 11 1 8 24 7 6 5 21 35 S3-B, S3-S, S3-PO, S3-M, S3-M0, S3-M1 SO-NP (BAG 10 PCS) Technical approvals, conformities IEC/EN 61810; IEC/EN 60947 42 | WoR 1 2 3 9 4 22 14 12 9 1 Relays & Contactors Industrial Relays General Information Product range ComatReleco offers a wide range of relay types and versions and associated sockets and accessories. Basic identification principle (type designation code electromechanical relays) C n(n) - T X y   z () z  /….V Industrial Relays C2, C3, C4, C5 35 x 35 mm round plug-in relay, 8- or 11-­terminals multipole connector according to IEC 67 with 2 or 3 contacts up to 10 A and different contact types and contact materials. Standard relay 35 x 35 mm with flat blade connectors with up to 4 contacts and up to 16 A with 4 contacts. Ref. nnnn Relays with a reference number are versions with special (e.g. customised) features. These features may relate to special test criteria, tolerances or other properties. Availability of such relays may be limited to certain customers or applications. Industrial Relays C7, C9 22.5 mm series with up to 4 contacts and up to 10 A with 1 or 2 contacts. Nominal coil voltage specification AC … V AC 50/60 Hz, voltage 6 – 250 (400) V AC … V 60 Hz AC 60 Hz, 120, 240 V DC … V DC, voltage 5 – 220 V UC … V AC/DC Interface Relays, C10, C12, C16, C18 Overall width 13 mm with up to 2 electromechanical contacts, or fully electronic switches. Special relays, remanence relays While "normal" relays are monostable, i.e. they return to the idle state when the excitation is switched off, remanence relays are bistable, i.e. the current switching state is retained irrespective of the excitation. Relays of this type are available in different versions. Solid State Relay CSS CSS Relays are suitabe to either switch AC or DC loads up to 6 A. For AC relays a distinction is made between synchronously (zero crossing) and asynchronously switching versions. For switching transformer loads we recommended using asynchronously switching semiconductor switches. For incandescent lamp loads etc. synchronously switching switches are ideal for avoiding high switch-on currents. Accessories Suitable sockets are available for the different relay series for DIN rail mounting or panel mounting. In addition, retaining clips are available for the relays, some of which are included in the scope of supply. Suitable bridges for cost-saving wiring in series are also available. () Special requirements H = Orange button. No lockable function N = Black button. No function P = PCB pins E = Lap transparent cover T = Close transparent cover (lamp) PT = PCB pins, 3.5mm grid, transparent cover PTL = PCB pins, 5mm grid, transparent cover RF-nnnn X = Electric position indicating device with LED Describes the options D = Integrated free-wheeling diode F = Integrated free-wheeling diode and series diode e.g. for common alarm circuits R = RC connection for the coil B = Bridge rectifier PT = Transparent PCB Relay with 3mm Grid PTL = Transparent PCB Relay with 5mm Grid Definition of contact material This code may differ depending on type. Examples: 0 in the standard range stands for AgNi 1–9 see contact material for each type Number of contacts Relay type A = Standard (general-purpose) contact E = Sensitive drive with 500 mW coil power G = Refers to a NO contact H = Single-point contact + twin contact load to signal current circuit for switching state feed back. Mixed contact configuration M = Relay with highly effective neodymium blow magnet for fast quenching of the arc. This relay is particularly suitable for high DC loads. N = Sensitive drive 800 mW coil power R = Code for remanence relays, drive-specific ID S = Sensitive drive with 250 mW exciter input T = Twin contact for signal and control circuit W = With tungsten contact for maximum switch-on currents X = Relay high power, double make contact. B = Single C.O. contact with two pins per connection Basic type refers to the product line Numbers between 2 and 12 and 20, 30 are used. Normal industrial relay code Relays with code R are used for railway series. 8 | WoR 1 1 Relays & Contactors 1 Relays & Contactors Coil accessories General Information Industrial Relays C2-C9 Industrial Relays C10-C18 Protection against transients When the coil is disconnected from an electromagnet, peaks of inverse voltage appear at the terminals which can reach very high values. These pulses can be transmitted down the line associated with the coil and could possibly affect other components. In the case of a realy being operated by such devices as transistors, Triacs, etc; it may be necessary to protect against transients. Transients carried in the line High voltage surges can be carried in the supply line to the relay coil. These may appear in the form of peaks or bursts and are generated by the connection and disconnection of electric motors, transformers, capacitors etc. Normally a relay is unaffected by these pulses, but if a diode is connected in association with the coil, it must be capable of withstanding an inverse voltage higher than those of the incomX ing peaks. X X Protection circuits A protection circuit must efficiently cope with pulses generated by the coil as well as incoming line surges (surges U1.2/50µs.) ComatReleco Relays are available with inteF FX grated protectionF circuits or with modules FX F plugged into sockets S3-M, S3-M0 or S3-M1. X LED indication with rectifier. For DC and AC relays up to 250 V Note: LED connected, in series with the coil @ 220 V DC in QRC types. DX Free-wheeling diode + LED Dampens transients caused by the relay coil on de-energisation. FX Polarity + free wheeling diode + LED A diode in series with the coil protects the relay from reverse connection. BX Bridge rectifier + LED indication Allows the relay to operate in both AC or DC without any polarity inconvience. Available only in voltages up to 60 V. R Resistor and capacitor. D X D F B FXB RD R X DX DX D FX BX BXB DX R D LED and protection circuit connected to coil. X  LED with no polarity, (standard) Coils ≤ 12 V A DC coils LED rectifier bridge in parallel X  LED with no polarity, (standard) Coils ≥ 24 V A DC coils LED rectifier bridge in series FX  LED with polarity A1+ (option) Every DC coil voltage Polarity and Free-wheeling diodes BX  LED with no polarity, (option) Only 24 V and 48 V A DC coils Rectifier bridge for AC/DC relays R  LED not available (option) RC protection against pulses on AC Protection against pulses When a relay coil is disconnected, reverse voltage peaks may arise and reach very high values. DX can transmit to the coil DXSaid peaks associated line and other relays or semiconductors can be affected. If Triac, X≤12V transistor, etc. controls a relay, approBX X≤12V piate stepsX≤12V must be taken to avoidX≤12V orBX decrease peaks down to a non risky level. B R BX BX Both Polarity and Free-wheeling diodes (FX), X≥24V must protect coils, to avoid malfunctions pro-X≥24V X≥24V X≥24V R R vided DC relays in battery are installed. Making or breaking engines, transformers or contactors in FXan industrial environmental, may FX FX generate high voltage pulses, either isolated or burst, through the main line. The voltage level of those pulse may be high enough to affect the isolation of the coil. X≤12V F FX B 1 BX BX X≥24V R FX R WoR 1 | 9 FX 1 Relays & Contactors Industrial Relays General Information Contacts There are different contact types. The main distinction is between single contacts and twin contacts. While single contacts are more suitable for higher loads, twin contacts are significantly more reliable at small loads, i.e. < 24V, < 100mA. Contact Material There is no all-purpose contact! AgNi is used as standard material for a wide range of applications. AgNi contacts with hard gold plating (up to 5µm) are offered for applications in aggressive atmosphere. Relays with gold contacts are approved for relatively high currents (e.g. 6A, 250V), but in practice values of 200mA, 30V should not be exceeded for operation with intact gold plating. Relays with a tungsten pre-contact are available for very high switch-on currents (up to 500A, 2.5ms). For some applications AgNi contacts with gold flashing (0.2µm) are available. The purpose is corrosion protection during storage. Tin oxide is specially appropiated for load with high-inrush current. Minimum load The minimum load value is a recommended value under normal conditions such as regular switching, no special ambient conditions, etc. Under these conditions reliable switching behaviour can be expected. Contact resistance Initial values of resistance of contact can vary with the use, load and others conditions. Typical values when the relay is new is about 50mΩ. Contact spacing Normally all contacts have an air gap between 0.5 … 1.5mm when they are open. They are referred to as µ contacts. According to the Low-Voltage Directive and the associated standards these contacts are not suitable for safe disconnection. For switching of DC loads large contact clearances are beneficial for quenching the arc. See relays with "Cx-Gyz" naming. "G" stands for extended contact gap of 3mm. Switching capacity The contact switching capacity is the product of switching voltage and switching current. For AC the permitted switching capacity is generally high enough to handle the max. continuous AC-1 current over the whole voltage range. For DC the load limit curve must never be exceeded, because this would lead to a remaining switch-off arc and immediate destruction of the relay. The order of magnitude of the DC switching capacity is a few 100W (DC-1). 10 | WoR 1 Drive (coil) The drive of a relay refers to the coil plus connections. The coil has special characteristics, depending on the rated voltage and the type of current. During intermittent operation significantly higher overvoltages temporary may occur for short periods. If in doubt please consult our specialists. Coil design The coil consists of a plastic former (resistant up to about 130°C) and doubly insulated high-purity copper wire, temperature class F. The winding must withstand threshold voltages (EN 61000-4-5) of more than 2000V. This is ensured through forced separation of the start and end of the winding. Ub/U N Coil resistance and other properties Each coil has an ohmic coil resistance that can be verified with an ohmmeter. The specified coil resistance applies to a temperature of 20°C. The tolerance is ±10%. For AC operation the coil current will not match the ohmic value, because self-inductance plays a dominant role. At 230V this may reach more than 90H. When a relay is switched off, self-inductance results in a self-induced voltage that may affect the switching source (destruction of transistors, EMC problems). All Drive voltages A distinction is made between the standardised voltages according to EN 60947 as guaranteed values, and typical values that can be expected with a high degree of probability. Pick-up voltage, Release voltage The pick-up voltage is the voltage at which the relay engages safely. For DC the typical trip voltage is approx. 65% of Unom, for AC approx. 75%. The release voltage, on the other hand, is approx. 25% or 60% respectively. For DC these voltages are strongly temperature-dependent, according to the temperature coefficient of Cu. This is not the case for AC, where the inductive resistance is the controlling factor, which is practically constant over a wide temperature range. With AC, in a certain undervoltage range the relay may hum, and the armature may flutter. This voltage range must be avoided. Operating voltage range Unless specified otherwise, the following characteristic curve applies for the operating voltage range. The upper limit of the coil voltage is determined by self-heating and the ambient temperature. Self-heating through contacts under high load must not be underestimated. It may be higher than the power dissipation in the drive. 1.7 1.5 2 1.3 1.1 0.9 1 0.7 0.5 -20 -5 10 25 40 55 70 T ºC General design ComatReleco Relays are made from highquality, carefully selected materials. They comply with the latest environmental regulations such as RohS. Their meticulous design makes them particularly suitable for industrial applications and installation engineering. They are particularly service-friendly through robust terminals, mechanical position indicating device a standard, manual operation, dynamic, permanent characteristics. Colour coding for manual operation as a function of the coil voltage is another useful feature. Further options such as different coil connections, free-wheeling diode, LED display, bridge rectifier for AC/DC drives etc., and short-term availability of special versions for practically any drive voltage up to DC 220V / AC 400V leave nothing to be desired. Apart from a few special versions, in general, ComatReleco industrial relays feature manual operation (push/pull) and a mechanical position indicating device. For safety reasons, manual operation may be replaced with a black button, if required. Coil connections Different coil connections can be integrated in the relay as an option. For DC a cost-effective free-wheeling diode is available. Please note that the stated release times are generally specified without the coil connection. While an additional LED status indicator has practically no effect, a free-wheeling diode (D) will lead to an increase in release time by a factor 2 to 5, or 10ms to 30ms. For AC VDRs or RC elements may be used. In this case resonance effects may have to be considered. VDRs and common RC elements may increase release times by less than 5 ms. Industrial Relays General Information Standards, conformities All ComatReleco relays feature the CE mark to indicate that CE standards apply e.g. 2kV surge resistance according to EN 61000-4-5. A significant and not generally available characteristic is that the coils and in particular the connections are able to withstand the voltage spikes that may occur in practice. In addition, the relays feature various technical approvals depending on the respective relay code, and they comply with further standards and guidelines. The main technical approvals include cURus, CCC, Lloyd‘s Register, cULus and EAC.The associated information is provided in the data sheets. Switching classes EN 60947 defines different switching classes that specify the suitability of contacts for different load types. Main technical approvals and standards Country Technical approval China Authority: CQC Specification GB14048.5-2001 Russia Authority: KORPORATSIA STANDART Specification TP TC 004/2011 World Wide USA / Canada Authority: UL Specification C 22.2; UL 60947 United Kingdom Authority: GB Lloyd´s Register of Shipping Example: AC-1 = Ohmic AC load AC-3 = Motor loads AC-15 = Power contactors, solenoid valves, solenoids DC-1 = Ohmic DC load DC-13 = DC contactors, solenoids Utilisation categories according to EN 60947-4-1/-5-1 UL60947 contains different technical approval criteria such as general purpose, control application etc. Switching classes are defined based on the electrical switching capacity, e.g. B600 etc. Cat. 2 Occasional conductive contamination, short duration due to moisture condensation Choosing the right Socket For plug-in industry, interface, time, and monitoring relays, we offer sockets with the corresponding pin configuration and various layouts for the terminal connectors. For easy identification, you'll find those symbol referring to the matching socket. Pollution category Cat. 1 Dry, non-conductive contamination without further effect Cat. 3 Dry, non-conductive and conductive contamination with moisture condensation Cat. 4 Contamination with persistent conductivity through conductive dust, rain Protection class IP according to EN 60529 and other standards. Industrial relays and their sockets can be classified as follows: Socket IP20: Contact safety Relay IP40/IP50: not watertight, but protected against ingress of coarse contaminants. Electrical Distributor DIN 45mm All devices with a housing fitting in an electrical distributor with a front of 45mm are marked with the following symbol. Further information and tips The main operational criteria for relays such as number of cycles, switching frequency, ambient conditions, reliability requirements, load type, switch-on current, load switch-off energy must be clarified in order to ensure reliable operation and long service life. Example If the number of cycles is expected to exceed several 100.000 operations per year (e.g. clock generators, fast running machines), an electronic solution is no doubt more appropriate, although we also offer solutions for this type of application. In AC applications crosstalk caused by long control leads is often a problem and can result in constant humming of the relay or even inadvertent triggering due to interference. Different harmless loads may lead to very high switch-on currents or switch-off energy values, resulting in an unacceptable reduction in service life. Particularly tricky are DC inductive loads. Characteristics of various loads: Heating circuits No higher switch-on currents, no higher switch-off loads. Incandescent lamps, halogen lamps Switch-on currents during a few ms in the range 10 … 18 x rated. Switch-off at rated load. Low-energy lamps Very high, but very short switch-on currents due to built-in decoupling capacitors. Contacts have a tendency to fuse. Transformers, AC contactors Switching on during zero-transition may lead to switch-on currents of 8 … 15 x rated. High inductive switch-off energy is possible. The load must be connected, not least due to EMC problems. WoR 1 | 11 1 Relays & Contactors 1 Relays & Contactors 1 1 Relays & Contactors Industrial Relays Full Features System Time module Colour code = coil voltage Manual actuator (lockable) Marking label Retaining clip Mechanical status display Optical status display (optional LED) Coil voltage marking Time cube Five colours for an easier identification of coil voltage This document is our intellectual property. Without our written approval it may neither copied nor provided to third parties. All rights for this document have been reserved. Copyright reserved! © ComatReleco AG Coil and power bridge bus bars Type & options X LED DX Freewheeling diode, LED BX Bridge rectifier, LED FX Polarity protection, freewheeling diose, LED Comprehensive technical label AC red: 230 V AC (North America 120 V AC) If you don´t want to have the lockable function, you can use the orange button. AC dark red: others V AC Orange button, no lockable function, push only UC grey: V AC/DC Black button, no function C3-X10 03 AC 2.8 VA DC 1.3 W 10 A / 250 V AC-1 | 10 A / 30V DC-1 3 9 Coil details Maximum switching capacity according to EN 60947 (IEC 947) 2 A1 A2 10 DC blue: 24 V DC Part number 10A 250 Vac 10A 30 Vdc Aditional circuit diagram for coil Electric diagram showing all additions to the coil Made in India DC dark blue: others V DC Approvals Wiring diagram with sequential and DIN numbers Filename: DvS_C3-X10_IND.ai Revision: Printing color: white 12 | WoR 1 20.05.2015 Ia Last edit: 01.03.2018 Ld 2:1 Reviewed: 01.03.2018 Mi Format State: Released Name: Scale Created: A4 Sheet / Nb 1/1 1 Relays & Contactors 1 Relays & Contactors Industrial Relays Select the correct Relay 1 Symbol Signal relays • Level of switching current and voltage of the application? • DC or AC switching? • Inductive or capacitive load? • Expected number of switching cycles? Voltage Current Use 10 uA…1 mA Low-level signals, Standard signals (0…10 V/ 4…20mA) 100 mV…5 V Type Material Gold-plated double contact AgNi + Au Gold-plated Single Contact AgNi + Au double contact AgNi Gold-plated Single Contact AgNi + Au Frequent, rapid switching procedures Semiconductor Mosfet (DC) Triac (AC) Increased AC or DC loads Single Contact AgNi Electromagnets (utilisation cat. AC-15/DC-13) Single Contact AgSnO2 Frequent, rapid switching procedures, high reliability, noiseless switching Semiconductor Mosfet (DC) Triac (AC) Capacitive loads Early make contact AgNi + W AgSnO2 + W High DC loads, inductive loads Series contacts AgNi AgSnO2 Frequent, rapid switching procedures, high reliability, noiseless switching Semiconductor Mosfet (DC) Triac (AC) PLC inputs, Control circuits Control relays Power relays High-power relays 5 V…30 V 30 V …400 V 12 V …400 V 1 mA…100 mA 100 mA…16 A 100 mA…16 A WoR 1 | 13