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Littelfuse KRDB421 — Time Delay Relays

Littelfuse KRDB421

MPNKRDB421
Active

RELAY TIME DELAY 100SEC 10A 125V

$69.47 – $94.28Ref. price · indicative, final on quote
Littelfuse KRDB421 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jun 2026

Specifications

KRDB421 — Identification
ParameterValue
Relay typeMechanical Relay
SeriesKRDB
KRDB421 — Timing
ParameterValue
FunctionOff-Delay
Delay time range1 Sec ~ 100 Sec
Timing adjustment methodScrewdriver Slot
Timing initiate methodInput Voltage, Trigger Signal
KRDB421 — Electrical
ParameterValue
Supply voltage120VAC
KRDB421 — Output / Contacts
ParameterValue
Contact rating10A @ 125VAC
Contact configurationSPDT (1 Form C)
KRDB421 — Mechanical
ParameterValue
Termination styleQuick Connect - 0.250" (6.3mm)
Mounting typeChassis Mount
MPN
KRDB421