SIR10 Series

SIR10 Series

Product catalog summary
Overview: The document provides technical specifications for the SIR10 Series relays by ELESTA GmbH, designed with forcibly guided contacts compliant with IEC 61810-3 standards. These relays are suitable for print mounting and offer protective separation.
Specifications:
  • Contact Assembly: Various configurations ranging from 2 NO + 8 NC to 9 NO + 1 NC.
  • Dimensions: Pin dimension is 1.0 x 0.4 mm with recommended PCB drilling of Ø 1.3 mm.
  • Coil Data: Nominal power is 1.3 W, with a holding power of 0.39 W and a coil limit temperature of 120 °C.
  • Insulation: Rated insulation voltage is 250 VAC with basic and reinforced insulation specifications provided.
  • Mechanical Data: Minimum mechanical lifetime is 10 million operations with a maximum switching frequency of 15 Hz.
Electrical Characteristics:
  • Contact Material: AgSnO2 with gold plating.
  • Rated Switching Power: 2,500 VA with a maximum of 250 V / 10 A / AC-1.
  • Switching Voltage Range: 5 to 250 V DC/AC.
  • Switching Current Range: 10 mA to 10 A.
Environmental and Safety Standards:
  • Ambient Temperature: -40 °C to +70 °C.
  • Protection Class: RT II with a flammability class of UL 94 V-0.
  • Approvals: cULus, TÜV certified.
Options and Accessories: Other coil designs and railway application coils according to EN 50155 are available.
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Catalog excerpts

SIR10 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 - Contact assembly: SIR282: 2 NO + 8 NC, SIR372: 3 NO + 7 NC, SIR462: 4 NO + 6 NC, SIR552: 5 NO + 5 NC, SIR642: 6 NO + 4 NC, SIR732: 7 NO + 3 NC, SIR822: 8 NO + 2 NC, SIR912: 9 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 8 contacts 9 contacts Contact load limit curve (DC) Excitation voltage range Rated insulation voltage (IEC 60664-1) 250 VAC Basic insulation - Air and creepage distance (min.) 4 mm - Test voltage 2 500 Vrms / 1 min Double or reinforced insulation - Air and creepage distance (min.) 8 mm - Test voltage 4 000 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.) 18 ms Drop-out time (NC closed) (typ.)* 5 ms Bounce time (typ.) NO: 8 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

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*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.