ITALIANA RELE SERIES B Power Industrial Relays All-or-Nothing relays designed to meet high power switching applications, having up to three changeover contacts, rated 4000 or 7500VA AC1. They are ideally suited for arduous duties where safety and reliability are at premium, being even capable to replace small contactors when switching DIELECTRIC STRENGTH Coil spring set to contacts : Between adjacent contacts : Between open contacts : Ground / live parts : type B1-B3 2500 V RMS 2500 V RMS 2500 V RMS 2000 V RMS resistive loads. The 3mm contact gap version is very popular, meeting the strictest safety standards. Meeting IECCEI-VDE standards, this design includes a dust cover, 0.25 Faston terminals (6.3x0.8 mm) and flame resistant terminal block material. type B2-B4 2500 V RMS 2500 V RMS 2000 V RMS 2000 V RMS OPERATING TIMES (At Rated Voltage) Operate (excluding bounces) : max 15 milliseconds Release (excluding bounces) : max 12 milliseconds max 10 Bounces : milliseconds SPECIFICATION Min. insulation resistance Insulation group (VDE 110) Enclosure classification Type of duty Mechanical life expectancy Max ops./hour @ no load Max ops./hour @ rated load Temperature range Type B4-3 with AC coils Storage temperature Vibration Impulse voltage class Operating class (CEI 41-1) 2x104 ΜΩ @ 500 VDC (all circuits) 1° Gr. C 250 VAC IP 40 (IEC 144) continuous 106 operations 10000 (AC / DC) 1200 (AC / DC) -10 to +55° C -10 to +45° C -25 to +80° C 4 g (N / O contacts) 1 g (N / C contacts) 0 C AVAILABLE TYPES B1-1 1 pole normally open - 16A-250V AC B3-1 1 pole normally open - 30A-250V AC Distance between open contacts: 3 mm Weight: 135 grams B1-2 2 pole normally open - 16A-250V AC B3-2 2 pole normally open - 30A-250V AC Distance between open contacts: 3 mm Weight: 145 grams B1-3 3 pole normally open - 16A-250V AC B3-3 3 pole normally open - 30A-250V AC Distance between open contacts: 3 mm Weight: 155 grams B2-1 1 pole changeover - 16A-250V AC B4-1 1 pole changeover - 30A-250V AC Distance between open contacts: 1 mm Weight: 135 grams B2-2 2 pole changeover - 16A-250V AC B4-2 2 pole changeover - 30A-250V AC Distance between open contacts: 1 mm Weight: 145 grams B2-3 3 pole changeover - 16A-250V AC B4-3 3 pole changeover - 30A-250V AC Distance between open contacts: 1 mm Weight: 155 grams APPROVALS (16A Types only) All dimensions in mm Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom Tel (+44) 01342 835234 - Fax (+44) 01342 834306 - E-mail: [email protected] - Web: http://www.willow.co.uk COIL CHARACTERISTICS DC Rated Voltage V Rated Current mA Resistance R Ω Rated Current mA AC Resistance R Ω 6 270 22 650 2 9 12 135 88 320 8 37 24 68 350 160 32 150 48 34 1400 80 130 600 110 15 7500 35 670 3100 230 - - 17 2900 13500 Resistance values at 20°C ambient temp. Impedance Z Ω Tolerance on R and Z: + 10% CTEISTICSCOCHARACTERISTICS Power supply voltages: 6-12-24-48-110-230-400 VAC 6-12-24-48-60-110 VDC Rated power: 2W (DC) ; 3.9 VA (AC) Operating range: - 20% to + 10% of nominal Minimum hold voltage: 80% of nominal (AC) 50% of nominal (DC) Must release voltage: 15% of nominal (AC) 5% of nominal (DC) Thermic insulation class of winding (IEC 317): F (155°C) CONTACT CHARACTERISTICS Power rating (AC1) : 4000VA (Type B1-B2) 7500VA (Type B3-B4) Rated current : 16A (Type B1-B2) 30A (Type B3-B4) Rated voltage: 250V AC Max. instantaneous current(1) : 30A (Type B1-B2) 35A (Type B3-B4) (1) Make & maintaining only - max. 0.5 sec. Max switched voltage : 400 VAC Max. single-phase motor load : ½ HP (B1-B2) – 1 HP (B3-B4) Switching power (DC1) : see diagram Initial contact resistance (2): max. 30 mΩ standard 5 mΩ Contact material: Ag90% - Ni10% (2) Category of application (EN 60255) : 3 ORDERING INFORMATION B2 - 3 - 230 AC - FS 1 2 3 4 5 1 – Relay Series: B 2 – Contact type: 1 = Normally Open 16A 2 = Changeover 16A 3 = Normally Open 30A 4 = Changeover 30A 3 – Number of poles: 1 - 2 - 3 4 – Coil supply voltage: AC or DC 5 – Fixing options: FS = Fixing tabs on cover (standard) FA = screw mounting on base (M4x8) AD = DIN-rail flange on cover Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom Tel. (+44) 01342 835234 - Fax. (+44) 01342 834306 - E-mail: [email protected] - Web: http://www.willow.co.uk