Card Relay E (KRE) V23057 PCB relay for DC voltage, neutral, monostable Features ● Used as a switching element for electrical separation between low-power control circuits and power load circuits ● Clearance/creepage distances between winding and contact ≥ 4 mm (A/B version, make contact or changeover contact) or ≥ 8 mm (C/D version, make contact or break contact) ● Mechanical and electrical characteristics comply with the “Rules for electrical relays in power installations” (VDE 0435/9.72) ● Used for safe electrical insulation in the following applications – open and closed-loop control equipment for domestic use (VDE 0631) – electronic equipment for domestic use (VDE 0860) ● Suitable for fully automated processing Typical applications ● Machine tool control ● Interface modules ● Timer relays ● Elevator controls Siemens AG3 Design – Flat or upright versions with 1 changeover contact or 1 make contact or 1 break contact – Changeover contact assembly with single or double contacts – For printed circuit assembling – Immersion cleanable Approvals VDE VDE Mark of conformity SEV 91.1 12262.04 CSA File LR 89731 UL File E 48393 5146 Card Relay E (KRE) Dimensional drawing (in mm) Flat version ECR0975-B Approx. 1:1 scale Mounting hole layout View on the terminals Terminals in a 2.5 mm and 2.54 mm basic grid to EN 60097 and DIN 40803, fine Terminal assignment View on the terminals Changeover contact Clearance/creepage dist. Š≥ 4 mm Make contact Clearance/creepage dist. Š≥ 4 mm Break contact Clearance/creepage dist.Š ≥ 8 mm Make contact Clearances/creepage dist. Š≥ 8 mm 4 Siemens AG Card Relay E (KRE) Dimensional drawing (in mm) Upright version ECR0975-A Approx. 1:1 scale Mounting hole layout View on the terminals Terminals in 2.5 mm and 2.54 mm basic grid to EN 60097 and DIN 40803, fine Terminal assignment View on the terminals Changeover contact Clearance/creepage dist. Š≥ 4 mm Make contact Clearance/creepage dist. Š≥ 4 mm Make contact Clearance/creepage dist. Š≥ 8 mm Siemens AG5 Break contact Clearance/creepage dist. Š≥ 8 mm Card Relay E (KRE) Contact data Contact category III according to VDE 0435 Part 120/10.81 B Ordering code, block 3/ No. of contacts and type/ contact assembly 1 change. 1 make Ordering code, block 3/ No. of contacts and type/ contact assembly B101 – – B201 – – B401 – – 1 change. – – 1 change. – – 1 change. – – Contact material A101 A102 A103 1 break A201 A202 1 change. 1 make 1 change. 1 make AgNi20 8A Inrush current (max. 4 s for 10% duty cycle) 15 A Maximum switching voltage 440 V~ 300 V– Maximum switching capacity AC voltage DC voltage Note: A402 1 break AgCdO 2000 VA See load limit curve 1 mA, 6 V– 100 mA, 12 V~/V– 500 mA, 12 V~ ≤ 100 mΩ/100 mA/6 V ≤ 100 mΩ/100 mA/12 V ≤ 100 mΩ/1A/24 V Other contact materials and hard gold-plated contacts available on request Load limit curve Load limit curve for relays with single contacts for relays with double contacts I = switching current U = switching voltage Curves: Safe shutdown, no stationary arc > 10 ms. Max. 12.5 operations/s. Curve 1 ––––––– Contact material silver, gold-flashed Curve 2 – – – – – Contact material silver cadmium oxide 6 A403 Double contacts Max. continuous current at max. ambient temperature Contact resistance (initial value)/measuring current/driver voltage 1 break A401 Single contacts AgNi0,15 gold-flashed Recommended for loads > A203 Siemens AG Card Relay E (KRE) Coil data Nominal voltages From 6 V– to 60 V– Special voltages on request Nominal power consumption, typ. 450 ... 500 mW Maximum pull-in power 240 mW Minimum release voltage 10 % of nominal voltage Coil versions Nominal voltage Unom V– Operating voltage range at 20 °C Operate voltage UI V– Resistance at 20 °C Max. voltage UII V– Number of coil Ordering code, block 2 Ω 6 4.2 10.6 80 ± 8 001 12 8.3 21.5 330 ± 33 002 24 16.8 40.0 1200 ± 180 006 48 33.6 79.0 4700 ± 700 013 60 42.0 98.0 7200 ± 1080 023 Other coil versions available on request Data for operating range and class of operative range according to DIN IEC 255 Part 1-00/VDE 435 Part 205 available on request UI = Operate voltage at 20 °C after pre-energizing with UI without contact current UII = Maximum continuous voltage at 20 °C for Tc max = 115 °C without contact loading kI Operating voltage limits UI and UII depend on temperature and can be calculated by: UI tamb = kI · UI 20 °C and UII tamb =kII· UII 20 °C tamb = UI tamb = UII tamb= kI a. kII = Tc max = Ambient temperature Minimum voltage at ambient temperature tamb Maximum voltage at ambient temperature tamb Factors (dependent on temperature), see diagram Maximum coil temperature kII Ambient temperature tamb Siemens AG7 Card Relay E (KRE) General data Operate time at Unom and 20 °C, typ. 7 ms Release time without/with diode in parallel, typ. 3 ms / 10 ms Bounce time, make/break contact, typ. 0.5 ms / 3 ms 1200 min-1 Maximum switching rate without load Maximum switching rate with rated load 30 min-1 Ambient temperature range according to DIN IEC 255 Part 1-00 or VDE 0435 Part 201 -40 °C ... +70 °C Thermal resistance 75 K/W Coil temperature rise due to rated contact current Approx. 10 K Maximum permissible coil temperature 115 °C Protection class according to DIN 40050/IEC 529 Immersion cleanable IP 67 1 x 105 operations Electrical endurance at rated load Approx. 2 x 107 operations Mechanical endurance Flammability according to UL 94 V-0 Solder bath temperature/max. duration 260 °C / 5 s Mounting position Processing information Any Wherever possible, ultrasonic cleaning should not be used; if absolutely necessary, then only after consultation with the manufacturer. Weight 20 g Insulation According to VDE 0110 (2/97): insulation group/rated voltage C/250 B/380 Dielectric test voltage, contact – coil (1 min) 4000 V~rms Dielectric test voltage between open contacts (1 min) 1000 V~rms Clearance/creepage distances Insulation resistance at 500 V (initial value) 8 Changeover contact: 4 mm Make contact: 4 or 8 mm Break contact: 8 mm > 104 MΩ Siemens AG Card Relay E (KRE) Ordering code Block 1 Data position 1 2 3 4 5 Block 2 6 V 2 3 0 5 7 7 8 9 10 11 0 Identifier for Card Relay E (KRE) Design A = flat with clearances/creepage dist. ≥ 4 mm (changeover contact or make contact) B = upright with clearances/creepage dist.≥ 4 mm (changeover contact or make contact) C = flat with clearances/creepage dist. ≥ 8 mm (make contact or break contact) D = upright with clearances/creepage dist.≥ 8 mm (make contact or break contact) Version 0 = Standard Coil number 001 = 6 V– nominal voltage 002 = 12 V– 006 = 24 V– 013 = 48 V– 023 = 60 V– Type of contact A = Single contact B = Double contact (for changeover contact only) Contact material 1 = AgNi0,15, gold-flashed 2 = AgNi20 4 = AgCdO Contact arrangement 01 = 1 changeover contact 02 = 1 make contact 03 = 1 break contact Ordering example: V23057-B0006-A101 Card Relay E, upright, with clearances/creepage distancesŠ ≥ 4 mm, with 1 changeover contact (single contact), contact material AgNi0,15, gold-flashed, coil 24 V nominal voltage Siemens AG9 Block 3 12 13 14 15 Siemens in your area Republic of South Africa Siemens Components Unit 2, Fedlife Park Tonetti Street 1685 Midrand P.O. 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