VDE VC HEAVY DUTY POWER VC RELAYS RELAYS • Using the VC mounting bracket FEATURES saves even more time on 40 VC power relays are designed 52 installation and maintenance 30 for controlling heavy duty 34 • Min. 250,000 faultless loads safely: operations • Contact gap of 3 mm or more • UL recognized • 2-point contacts for circuits with (File No. E112482: all models) 59 56 high inrush current cUL certified • Large insulation distance (File No. E112482: all models) • Materials used in the terminal TÜV certified and the contact blocks are (R9551921: all VC15 types) flame-retardant (R9551922: all VC20 types) Faston terminal Reliable compact build: • Solenoid contact relays (AC 52 34 type) TYPICAL • The lever mechanism and efficient electromagnet APPLICATIONS configuration allow for a • Air-conditioner substantially more compact • Refrigerator 56 size • Freezer • Quiet operation • Freeze dryer • Flexible mounting orientation • Photocopier (AC type) → 80% of the rated • Numeric control machine voltage is guaranteed • Textile machine mm •Elevator • Power tool Screw terminal SPECIFICATIONS Coil input (AC) Types VC15 VC15S VC20 VC20S 4a, 3a1b, 3a, 2a1b, Contact arrangement 3a, 2a1b 4a, 3a1b 4a, 3a1b 4a, 3a1b 2a2b 2a, 1a1b,1a Maximum contact "a” contact (p.f.=1) 15A 20A current "b” contact (p.f.=1) 3A 3A Terminals #250 quick connector 3.5 mm dia. screw #250 quick connector 4 mm dia. screw Single wire 1.6 mm (AWG14) 2.0 mm (AWG12) Acceptable wire size Stranded wire 2.0 mm² (AWG14) 3.5 mm² (AWG12) 1 phase, 120 V 0.4 kW (8A) UL, cUL 1/3HP 0.75 kW (16A) UL, cUL 1HP Motor loads 1 phase, 240 V 0.75 kW (8A) UL, cUL 1HP 1.5 kW (16A) UL, cUL 2HP 3 phase, 240 V 1.5 kW (8A) UL, cUL 2HP 3.7 kW (16A) UL, cUL 5HP 3 phase, 380 V 1.5 kW (4A) 3.7 kW (8A) 1 phase, 120 V 15A UL, cUL 15A 20A UL, cUL 20A Resistive loads 1 phase, 240 V 15A UL, cUL 15A 20A UL, cUL 20A 3 phase, 240 V 15A UL, cUL 15A 20A UL, cUL 20A Tungsten, lamp loads 1 phase, 240 V 6A UL, cUL 6A 12A UL, cUL 12A Max. operating voltage IEC 380V AC UL, cUL 300V AC Breaking capacity 3 phase, 240 V (p.f.=0.4) 80A 160A ("a” contact) 3 phase, 380 V (p.f.=0.4) 40A 80A Making capacity 3 phase, 240 V (p.f.=0.4) 80A 160A ("a” contact) 3 phase, 380 V (p.f.=0.4) 40A 80A Electrical (max. rated current) 300,000 operations* Expected life Mechanical 1,000,000 operations Unit weight (with bracket) 160g 200g 260g 160g 300g Applicable mounting bracket catalogue No. BW91543 BW91543 BW92043 BW91543 BW92043 ds_24401_0018_en_vc: 110607D 1 VC Coil input (DC) Types VC15 VC20 Remarks Contact arrangement 4a, 3a1b 2a, 1a1b Maximum contact "a” contact (p.f.=1) 15A 20A current "b” contact (p.f.=1) 3A 3A Terminals #250 quick connector Single wire 1.6 mm (AWG14) 2.0 mm (AWG12) Acceptable wire size Stranded wire 2.0 mm² (AWG14) 3.5 mm² (AWG12) 1 phase, 120 V 0.4 kW (8A) UL, cUL 1/3HP 0.75 kW (16A) UL, cUL 1HP Motor loads 1 phase, 240 V 0.75 kW (8A) UL, cUL 1HP 1.5 kW (16A) UL, cUL 2HP 3 phase, 240 V 1.5 kW (8A) UL, cUL 2HP ⎯⎯ 3 phase, 380 V 1.5 kW (4A) ⎯⎯ 1 phase, 120 V 15A UL, cUL 15A 20A UL, cUL 20A Resistive loads 1 phase, 240 V 15A UL, cUL 15A 20A UL, cUL 20A 3 phase, 240 V 15A UL, cUL 15A ⎯⎯ Tungsten, lamp loads 1 phase, 240 V 6A UL, cUL 6A 12A UL, cUL 12A Max. operating voltage IEC 380V AC UL, cUL 300V AC Breaking capacity 3 phase, 240 V (p.f.=0.4) 80A ⎯ IEC AC3 ("a” contact) 3 phase, 380 V (p.f.=0.4) 40A ⎯ Making capacity 3 phase, 240 V (p.f.=0.4) 80A ⎯ IEC AC3 ("a” contact) 3 phase, 380 V (p.f.=0.4) 40A ⎯ Electrical (max. rated current) 300,000 operations* Expected life Mechanical 1,000,000 operations Unit weight (with bracket) 170g 130g Applicable mounting bracket catalogue No. BW91543 BW91543 Note: *Except for 12 A of lamp loads. In this case the expected life is 100,000 operations. CONTACT ARRANGEMENTS No.of No.of No.of Type Contacts Contact Arrangements Type Contacts Contact Arrangements Type Contacts Contact Arrangements poles poles poles A1 A1 A1 13 23 33 43 13 23 33 43 13 23 33 43 4a 4a 4a A2 A2 A2 14 24 34 44 14 24 34 44 14 24 34 44 VC20 4P VC15-DC 4P VC20S A1 A1 13 23 33 41 A1 13 23 33 41 13 23 33 41 3a1b 3a1b 3a1b 4P A2 A2 A2 14 24 34 42 14 24 34 42 42 14 24 34 A1 A1 13 23 33 A1 13 23 13 23 31 41 3a 2a2b 2a VC15 A2 A2 A2 14 24 34 14 24 32 42 14 24 3P 2P VC20-DC A1 A1 A1 13 23 31 13 21 13 23 33 2a1b 1a1b 3a A2 A2 A2 14 24 32 14 22 14 24 34 3P A1 A1 13 23 13 23 31 2a VC20 2a1b A2 A2 14 24 14 24 32 2P A1 A1 13 31 13 23 33 43 1a1b 4a A2 A2 14 32 14 24 34 44 VC15S 4P A1 A1 13 13 23 33 41 1a 1P 3a1b A2 A2 14 14 24 34 42 Note: Inquire separately regarding TÜV certified models. 2 ds_24401_0018_en_vc: 110607D VC COIL DATA (at 20°C) AC coils (EX. 240V AC) VC20 VC15, VC15S, VC20 (4a, 3a1b), Types (2a, 1a1b, 1a) VC20 (3a, 2a1b) VC20S Nominal coil voltage 240V AC 240V AC 240V AC Frequency, Hz 60 50 60 50 60 50 mA 67.5 80.8 87.5 104 133 146 Inrush VA 16.2 19.4 21 25 32 35 Coil input (max.) mA 22.5 26.7 25 30 32.5 38.3 Sealed VA 5.4 6.4 6 7.2 7.8 9.2 Pick-up voltage, V AC (max.) Cold 192 192 192 192 192 192 Drop-out voltage, V AC (min.) 48 48 48 48 48 48 DC coils (24V DC) Types VC15 (4a, 3a1b) VC20 (2a, 1a1b) Nominal coil voltage 24V DC 24V DC Coil capacity (±10%) 3.3W 3.3W Pick-up voltage, V DC (max.) Cold 19.2 19.2 Drop-out voltage, V DC (min.) 2.4 2.4 CHARACTERISTICS (AC, DC common) Max. operate time 25ms* Switching speed 1,200 times/hour Electrical Max. release time 25ms 14,400 times/hour Mechanical Contact bounce time Average 5 ms or less 㨫 㨫 Dielectric strength -10 C to +40 C (max. 85% R.H.) Ambient temp. (max. humidity) 㨫 㨫 Between open contacts 2,500 Vrms (Initial) +40 C to +55 C (max. 75% R.H.) (inc. coil terminal) Between load & source 2,500 Vrms (Initial) with open contacts Insulation resistance Between open contacts Over 100 MΩ (initial) at 500 V DC (inc. coil terminal) Between load & source Over 100 MΩ (initial) at 500 V DC with open contacts Remark: *VC15 DC type: 30 ms. ORDERING INFORMATION Ex. VC15 S 4a AC240V N Terminal type Contact arrangements* Coil voltage Nil: Faston terminal 4a,3a1b,2a2b, AC 24V DC 12V (Quick connection) 3a,2a1b, AC 48V DC 24V S: Screw terminal 2a,1a1b, AC 110V DC 48V (only for 4a or 3a1b 1a AC 120V DC 100V of AC coil types) AC 220V Note: *As to combination availability AC 240V of contact arrangements, refer to etc. contact arrangements in the specifications table. TYPES AC coils (EX. 240V AC) Types Contact VC15 VC15S VC20 VC20S arrangements 4a VC15-4a-AC240V-N VC15S-4a-AC240V-N VC20-4a-AC240V-N VC20S-4a-AC240V-N 4P 3a1b VC15-3a1b-AC240V-N VC15S-3a1b-AC240V-N VC20-3a1b-AC240V-N VC20S-3a1b-AC240V-N ̆ ̆̆ 2a2b VC15-2a2b-AC240V-N 3a VC15-3a-AC240V-N ̆ VC20-3a-AC240V-K-N ̆ 3P 2a1b VC15-2a1b-AC240V-N ̆ VC20-2a1b-AC240V-N ̆ 2a ̆ ̆ VC20-2a-AC240V-N ̆ 2P ̆ ̆ 1a1b ̆ VC20-1a1b-AC240V-N 1a ̆ ̆ VC20-1a-AC240V-N ̆ 1P ds_24401_0018_en_vc: 110607D 3 VC DC coils (EX. 24V DC) Types Contact VC15 VC20 arrangements 4a VC15-4a-DC24V-N ̆ 4P VC15-3a1b-DC24V-N 3a1b ̆ 2a ̆ VC20-2a-DC24V-N 2P 1a1b ̆ VC20-1a1b-DC24V-N DIMENSIONS AC type mm VC15 / VC20 VC15㧔4P㧕 VC15S㧔4P㧕 52 2.5 52 2.5 52 2.5 9.9 33 33 43 13 23 A 1 13 23 A1 31 31 41 13 23 33 43/41 A1 14 24 34 44/42 A2 34 34 44 A2 14 24 A2 14 24 32 32 42 Terminal screw M3.5 7.3 12.5 12.5 14.5 6.8 9.5 9.5 9.5 11.5 AMP 250 series tab AMP 250 series tab 6.35 6.35 VC20㧔4P㧕 VC20S㧔4P㧕 60 2 60 2 13 23 33 43/41 A1 14 24 34 44/42 A2 13 23 33 43/41 A1 14 24 34 44/42 A2 Terminal screw M3.5 7 11.5 11.5 11.5 13.5 11.3 6.35 AMP 250 series tab 50㧕 Mounting brackets 45 2-φ5 mm dia. BW91543 (BW92043) (mounting holes) 35 (included in delivered set) (Midway between Mounting bracket Suitable VC relay mounting holes) 12 VC15(3P) VC15(4P) BW91543 VC15S(4P) VC20(3P) VC20(4P) VC20(2P) BW92043 VC20(4P) VC20S(4P) Dimensions for the BW9204 are given in parentheses ( ). φ3.5 mm dia. hole mm DC type 52 2.7 VC20 VC15 5 9.5 9.5 9.5 11.5 40 43 13 23 33 A㧝 41 23 13 A㧝 21 44 14 24 34 A2 42 24 14 A㧞 22 2.5 16.5 6.5 12.5 14 0.8 AMP 250 series tab 6.35 0.8 AMP 250 series tab 6.35 Nameplate mounting position Nameplate mounting position 35 4 ds_24401_0018_en_vc: 110607D onlinecomponents.com 40 65.5 2 2 33 9 5 6 56 16 58.5 35㧔45㧕 30 34 11 16 37.5 14 30 5 59 30㧔40㧕 40 68 5 33 9 6 2 2 56 16 30 34 2.5 4.8 11 26.7 7.4 6 37.5 13 16 5 59 2 30 2 33 9 6 10 16 60 30 34 VC CAUTIONS FOR USE General Usage Conditions • Avoid using relays in extreme VC15(4P) should not be used with a • Ambient temperature (relative environments, such as locations subject receptacle tab because the insulation humidity): to excessive heat, humidity, dust, distance cannot be guaranteed. –10C°–40C° (45%–85% RH) corrosive gases, vibrations, mechanical 3) Insert the receptacle firmly to prevent it 40C°–55C° (45%–75% RH) shocks, or direct sunlight. from loosening. Removal requires a (No condensation or freezing) • Avoid using relays in locations where pulling force of 2 to 4 kg, so avoid trying • Elevation: 2,000 m or less they could be exposed to rain or water to remove two at the same time. Make • Operating circuit voltage fluctuation spray. (Such conditions could cause sure to remove only one at a time. range: malfunctions.) 4) Avoid applying solder to terminals. 80%–110% of rated voltage (cold state) • As shown in Figure 1, secure the ends Figure 5 • Rated frequency: 50/60 Hz of the mounting plate to the mounting Notes on relay selection bracket using 4 mm screws, then snap • Select a relay such that the load the relay into place. To remove the Straight type Flag type Receptacle tab capacity is within the rating of the relay, carefully pry loose the hook of the combined type solenoid switch. mounting bracket with the tip of a Model AMP 250 series receptacle Straight type, flag type, VC15 • At the maximum rated motor capacity, screwdriver, as shown in Figure 2, and receptacle tab combined type Straight type, flag type, the product has an electrical switching then pull the relay out. (Do not to apply VC20 receptacle tab combined type durability (service life) of 250,000 too much force with the screwdriver to Straight type, flag type VC15 4P operations or more. This is suitable for avoid bending the mounting bracket.) Straight type, flag type, VC20 4P receptacle tab combined type Figure 1 Mounting bracket consumer and light industrial Figure 6 applications. 0.8 6.35 • In certain usage environments (temperature, humidity, oil mist, etc.), Mounting holes Figure 2 the service life of the contacts may be shortened. For applications such as industrial machinery where the usage environment is poor, select a model that • When relays are mounted side-by-side provides some performance margin. Usage precautions horizontally, the operation indicators are Contact your National dealer for • If there is concern that contact problems located on the side. Therefore, they assistance when making a selection. (fusing, open-phase, etc.) or the auto- should be positioned at least 5 mm • These relays are not suitable for reset operation of thermal relays could apart, as shown in Figure 3. In addition, applications such as inching or cause secondary damage, appropriate when they are mounted side-by-side plugging. safeguards should be built into the vertically, as shown in Figure 4, make • Using the wrong coil voltage can cause system. sure to leave sufficient space in the coil to burn out. Particular care • Make sure not to confuse the terminal between them to allow insertion of a should be taken when selecting the coil positions when using relays. The screwdriver to remove the mounting voltage in cases where the main circuit terminals are marked on the nameplate. brackets. and operating circuit have different Be particularly careful regarding the Figure 3 7.5 voltages. positions of terminal b and the coil • When choosing a thermal relay, make terminal. sure the current adjustment range is • Circuits through which current is flowing appropriate for the full load current of continuously for long periods due to the 5 the motor, regardless of the voltage of 10 Figure 4 operation of the relay, etc., should be the main circuit. Operation cannot be designed so that they are in a non- guaranteed if the motor is outside the excited state when left idle. (Examples current adjustment range. include circuits for emergency lamps, • The relays are sealed type units and are warning devices, and fault detectors Wiring connections adjusted at the factory. They are not that reset only in case of emergency • Connections to screw terminals intended to be disassembled by the and use terminal b to issue warnings.) Terminal Terminal Max. conne- Suitable crimp- Standard tighten- user. It is not possible to replace dimensions screw ction wire type terminal ing torque Maintenance and inspection Up terminal individual contacts or coils. • Due to the danger of electric shock, φ 1.6 2-3.5 0.8-1.2N • m • The minimum usable current is the always shut off power when performing 2 2 mm 2Y-3.5 㧔8.2-12.2kgf • cm 7.4 approximate lower limit value at which M3.5 maintenance or inspections. Full-up terminal switching operation is possible at very • Periodically retighten terminal screws to φ 2 1.2-1.8N • m small load levels. The actual minimum 3.5-4 2 prevent the possibility of overheating or 3.5mm 㧔12.2-18.3kgf • cm㧕 8.6 usable current may differ depending on M4 fire due to loosening. factors such as the usage environment. • If there is concern that contact problems • Plug-in terminal connections Relays should therefore be tested at the (fusing, open-phase, etc.) could cause 1) When removing a VC relay from the actual load level before use. secondary damage, perform checks socket, pull it straight out. Pulling the Installation notes regularly and replace relays as soon as relay out at an angle could bend the Mounting any problems are discovered. plug-in terminals. • Mechanical shocks from being dropped, • If a thermal relay is tripped, correct the 2) The receptacles listed in the table etc., can cause malfunctions. Handle problem and then lightly press the reset below may be used with relays having relays with care. button to restart operation. plug-in terminals. However, the ds_24401_0018_en_vc: 110607D 5 10 5.1 7 4.5 3.4 8 VC APPLICATION NOTES ● Wiring 1. Air-conditioner :VC relay Outdoor control unit Indoor control unit Power relay Inverter unit Power switch Short-circuit relay AC 200V Terminal Compressor block Compact power relay for internal frequency switching (JY)1-3 pcs. used Heater relay Solenoid valve Power relay selector switch Indoor fan Relay Relay switching relay Ry 2 Heater (3-4 pcs.) F ■ Features Outdoor fan Outdoor fan switching relays (2 pcs.) Ry 3 ● VC relays were developed for Ry 4-1 Indoor unit (1) Ry 4-2 Liquid side Relay SVL use in air-conditioners. Terminal block solenoid valve Fan Ry 1 SV G Gas side output ● Used for switching the solenoid valve terminal Indoor unit (2) Relay SV L Indoor fan Terminal block compressor and fan ON and OFF. SVO Relay ● Also used in commercial RV Four-way valve Relay Release air-conditioners having separate SVR solenoid valve indoor and outdoor units. ● VC20-AC type is recommended. ● 2. Freezer/Refrigerator Wiring :VC relay Earth leakage breaker MCB Thermistor Fluorescent Power lamp switch T Fluorescent Defrost lamp Ry1 timer Reset switch T switch Solenoid Ry1 Ry2 Timer valve Ry2 Thermal switch Defrost ■ Features heater relay ● Used as relays for compressor C Defrost heater Compressor starting. ● VC20-AC type is recommended. ● Wiring :VC relay 3. Photo copy machine EX.)VC15-4a-DC type used a 1 10-15A (Lamp load) a 2 2A (Motor load) a 3 ML 㧗10㧑 䵊 ■ Features 㧙15㧑 Main interlocking SW ● IEC standards emphasize safety and may require a contact gap of at least 4 mm. a 4 Note: Inquire separately when a contact gap of 4 mm or larger is required. ● Used as power relays of the main circuit. ● VC15-DC type is recommended. 6 ds_24401_0018_en_vc: 110607D onlinecomponents.com