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2 Manhasset Ave. Port Washington, NY 11050
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Industrial Test Equipment Co., Inc.
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  3. Hydrogen Silent Relay
Hydrogen Silent Relay
  • Hydrogen Silent Relay

Hydrogen Silent Relay

Model HIC-821SU

Hydrogen Slient Relay

MSRP:
Was:
Now: $320.00
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Hydrogen Silent Relay
Hydrogen Silent Relay

SKU:
HIC-842-1-1
UPC:
pdf:
HIC-821SUdatasheet.pdf
model:
HIC-821SU
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Hydrogen Silent Relay
  • Hydrogen Silent Relay

FEATURES

  • 1-year limited warranty
  • Trip relay for connection to remote or local alarm panel, fan or horn or to shut off gas valve
  • Power requirements are anywhere from 12V to 36V AC/DC. If supply voltage is 120V AC or 230V AC,
    6-watt AC to DC or AC to AC adaptor is needed for transforming voltage down to suitable input voltage range
  • The recommended area for one detector is 10,000 cubic feet.

SPECIFICATIONS

  • INPUT POWER 12V to 36V AC or DC
  • POWER USAGE 4.0 watts at no alarm state; 6.0 watts at alarm state
  • ALARM INDICATORS Dry contact SPDT (5A, 250V) with red LED on enclosure
  • GAS DETECTED and Alarm Setting 20% LEL of Hydrogen for model
Download Datasheet and Operation Instructions for Model HIC-821SU

FEATURES

  • 1-year limited warranty
  • Trip relay for connection to remote or local alarm panel, fan or horn or to shut off gas valve
  • Power requirements are anywhere from 12V to 36V AC/DC. If supply voltage is 120V AC or 230V AC,
    6-watt AC to DC or AC to AC adaptor is needed for transforming voltage down to suitable input voltage range
  • The recommended area for one detector is 10,000 cubic feet.

SPECIFICATIONS

  • INPUT POWER 12V to 36V AC or DC
  • POWER USAGE 4.0 watts at no alarm state; 6.0 watts at alarm state
  • ALARM INDICATORS Dry contact SPDT (5A, 250V) with red LED on enclosure
  • GAS DETECTED and Alarm Setting 20% LEL of Hydrogen for model
Download Datasheet and Operation Instructions for Model HIC-821SU
  • Description

---

Description

Model HIC-821SU

Hydrogen Slient Relay

---

FEATURES

FEATURES

  • 1-year limited warranty
  • Trip relay for connection to remote or local alarm panel, fan or horn or to shut off gas valve
  • Power requirements are anywhere from 12V to 36V AC/DC. If supply voltage is 120V AC or 230V AC,
    6-watt AC to DC or AC to AC adaptor is needed for transforming voltage down to suitable input voltage range
  • The recommended area for one detector is 10,000 cubic feet.

---

SPECIFICATIONS

SPECIFICATIONS

  • INPUT POWER 12V to 36V AC or DC
  • POWER USAGE 4.0 watts at no alarm state; 6.0 watts at alarm state
  • ALARM INDICATORS Dry contact SPDT (5A, 250V) with red LED on enclosure
  • GAS DETECTED and Alarm Setting 20% LEL of Hydrogen for model
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Industrial Test Equipment Co., Inc.

Established in 1952, Industrial Test Equipment Co., Inc. (ITECO) produces AC power supplies and power amplifiers, hazardous gas detectors, wire markers, and engraved nameplates and tags for electrical and industrial applications.

location pin2 Manhasset Ave. Port Washington, NY 11050

phone 516-883-1700 | 516-883-7155

envelope sales@industrialtest.com

      • AC Voltage Sources 80-500 watts
      • AC Voltage Sources 1000-3000 watts
      • RF Power Amplifiers 50-1000 watts
      • AC Current Sources 250-500 watts
      • AC Current Sources 1000-3000 watts
      • Frequency Converters 80-3000 watts
      • AC Power Amplifiers (Voltage Mode)
      • AC Power Amplifiers (Current Mode)
      • Plasma Power Supplies
      • Dedicated AC Power Sources
      • IEEE Controlled Oscillators
      • Plug-in Oscillators
      • Three Phase Linear
      • Cable Markers
      • Engraved Nameplates and Tags
      • Hot Stamped Markers
      • Carbon Monoxide
      • Methane
      • Multi-Gas
      • Telecom
      • Propane
      • Hydrogen
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  • Warranty
  • Contact Us
  • © 2025 ITECO

© 2025 ITECO