SIR8 Series

SIR8 Series

Product catalog summary
Features
  • Relay with forcibly guided contacts compliant with IEC 61810-3.
  • Application type A with protective separation.
  • Suitable for print mounting with small outer dimensions.
  • Various contact configurations available: SIR262, SIR442, SIR622, SIR352, SIR532, SIR712.
Dimensions and Mounting
  • Pin dimension: 1.0 x 0.4 mm.
  • Recommended PCB drilling: Ø 1.3 mm.
Coil Data at 20°C
  • Nominal power: 1.3 W, Holding power: 0.39 W.
  • Coil limit temperature: 120°C.
  • Nominal voltage range: 5.0 VDC to 110.0 VDC with corresponding current and resistance values.
Insulation Data
  • Rated insulation voltage: 250 VAC.
  • Double or reinforced insulation with air and creepage distances of 8 mm and 10 mm.
  • Test voltages: 4,000 Vrms and 5,000 Vrms for 1 min.
  • Insulation resistance: Minimum 100 MΩ at 500 VDC.
Mechanical Data
  • Mechanical lifetime: Minimum 10 million operations.
  • Switching frequency: Maximum 15 Hz.
  • Response time: 15 ms (NO closed), Drop-out time: 4 ms (NC closed).
  • Shock and vibration resistance specified for NO and NC contacts.
Environmental and Other Data
  • Operating temperature range: -40°C to +70°C.
  • Protection class: RT II, Flammability class: UL 94 V-0.
  • Approvals: cULus, TÜV.
Contact Data
  • Contact material: AgSnO2 with Au coating.
  • Rated switching power: 2,500 VA, with various voltage and current specifications.
  • Electrical life: 100,000 operations at specified conditions.
Options and Accessories
  • Other coil designs and railway application coils available.
See more

Catalog excerpts

SIR8 Series-1

Contact data - Relay with forcibly guided contacts according to IEC 61810-3 - Application type A - Protective separation (see insulation data) - Suitable for print mounting - Small outer dimensions - Contact mounting SIR262: 2 NO + 6 NC, SIR442: 4 NO + 4 NC, SIR622: 6 NO + 2 NC, SIR352: 3 NO + 5 NC, SIR532: 5 NO + 3 NC, SIR712: 7 NO + 1 NC Contact material AgSnO2 + 0,2, ..., 0,4 μm Au Contact type crown contact Rated switching power 2 500 VA 250 V / 10 A / AC-1 (max.) Electr. life time (0,1 Hz, rel. duty cycle 10%) 100 000 Inrush current 25 A for 20 ms Switching voltage range 5, ..., 250 V DC / AC Switching current range* 10 mA, ..., 10 A Switching power range* 60 mW, ..., 2 500 W (VA) Contact resistance as new (max.) 100 mΩ Short circuit resistance of contacts** 1 000 A with pre-fuse SCPD 10 A gG / gL (fuse) Circuit diagram (top view) * Reference values ** Prospective short-circuit current Electrical life (NO contacts) Insulation data Pin dimension c Recommended drilling on PCB Nominal power (typ.) Holding power (typ.) Coil limit temperature Switching capacity (IEC 61810-1) AC-1: 240 V / 10 A MAX AC-15: 240 V / 5 A MAX DC-1: 24 V / 10 A MAX DC-13: 24 V / 7,5 A / 0,1 Hz MAX Switching capacity (UL 508) Continuous current per contact at load of: 1 or 2 contacts 3 contacts 4 contacts 5 contacts 6 contacts 7 contacts Contact load limit curve (DC) Excitation voltage range Rated insulation voltage (IEC 60664-1) 250 VAC Double or reinforced insulation - Air and creepage distance (min.) 8 mm - Test voltage 4 000 Vrms / 1 min Double or reinforced insulation - Air and creepage distance (min.) 10 mm - Test voltage 5 000 Vrms / 1 min Open contact: Test voltage* 1 500 Vrms / 1 min Creepage resistance CTI 250 Pollution degree 2 Overvoltage category III Insulation resistance (min.) 100 MΩ - Test voltage 500 VDC * Initial value Mechanical data Mechanical lifetime (min.) 10 x 106 operations Switching frequency (max.) 15 Hz Response time (NO closed) (typ.) 15 ms Drop-out time (NC closed) (typ.)* 4 ms Bounce time (typ.) NO: 6 ms / NC: 12 ms Shock resistance (16 ms) (min.) NO: 10g / NC: 6g Vibration resistance (10-200 Hz) (min.) NO: 8g / NC: 2,5g Weight approx. 60 g Mounting position any Mounting distance (min.) 5 mm * without coil wiring  Other data Ambient temperature Thermal resistance Protection class Solder bath temperature Test method (heating) Approvals Flammability class UL File -40 °C, ..., +70 °C 40 K / W RT II 270 °C / 5 s A (group assembly) cULus, TÜV UL 94 V-0 E188 953 Sec. 3 Options, Accessories Other coil designs possible Coils accord. to EN 50155 (railway applications) possible Test conditions: - Graph 1: Contact current 6 A MAX - Graph 2: without previous operation - Free-standing relay on PCB - Duty cycle 100% ELESTA GmbH, Heuteilstrasse 18, CH - 7310 Bad Ragaz, Switzerland Type designation Number of contacts NO Number of contacts NC Connection

 Open the catalog to page 1
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.