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Littelfuse HRDB321 — Time Delay Relays

Littelfuse HRDB321

MPNHRDB321
Active

RELAY TIME DELAY 100SEC 30A 125V

$82.87 – $106.55Ref. price · indicative, final on quote
Littelfuse HRDB321 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jun 2026

Specifications

HRDB321 — Identification
ParameterValue
Relay typeMechanical Relay
SeriesHRDB
HRDB321 — Timing
ParameterValue
FunctionOff-Delay
Delay time range1 Sec ~ 100 Sec
Timing adjustment methodScrewdriver Slot
Timing initiate methodInput Voltage, Trigger Signal
HRDB321 — Electrical
ParameterValue
Supply voltage24VDC
HRDB321 — Output / Contacts
ParameterValue
Contact rating30A @ 125/240VAC
Contact configurationSPDT (1 Form C)
HRDB321 — Mechanical
ParameterValue
Termination styleQuick Connect - 0.250" (6.3mm)
Mounting typeChassis Mount
MPN
HRDB321