Omron H3CR-A AC24-48/DC12-48 Solid-State Multi-Functional Timer

USD 36.81

Solid-state DPDT timer with NPN/PNP universal input. Specs: 24-48VAC/12-48VDC, 5A switching, 100mΩ max contact resistance, and 0.05s–300h adjustable timing ranges.

SKU Omron-H3CR-A AC24-48/DC12-48 Category
Industrial Control Timers

Omron H3CR-A AC24-48/DC12-48 Solid-State Multi-Functional Timer

Model Identifier H3CR-A AC24-48/DC12-48
Official Part Number H3CR-A AC24-48/DC12-48
GTIN Standard 4548583553279

Technical Overview

The Omron H3CR-A AC24-48/DC12-48 is a versatile, 1/16 DIN (48 x 48 mm) solid-state multi-functional timer engineered for industrial automation sequence control. Designed with an 11-pin plug-in terminal, it accommodates a broad timing range from 0.05 seconds up to 300 hours. The timer offers exceptional flexibility with eight selectable operating modes, including ON-delay, flicker, and interval start functions. Operating reliably across a wide voltage range of 24 to 48 VAC or 12 to 48 VDC, it triggers a 5A DPDT relay output suitable for driving motor contactors or pilot devices. The ecological design features reduced current consumption, and instantaneous output enables simple sequence checking.

Key Features

  • Broad timing range spanning from 0.05 seconds to 300 hours for diverse applications
  • Eight selectable operating modes for 11-pin models including ON-delay, OFF-delay, and flicker configurations
  • Standard 1/16 DIN (48 x 48 mm) footprint for easy panel integration
  • No-voltage (NPN) input compatibility for reliable start/reset signaling
  • Ecological low power consumption design with zero set value instantaneous outputs
  • Worldwide safety compliance including UL, CSA, NK, LR, CCC, EN 61812-1, and CE Marking

Universal 24-48 VAC / 12-48 VDC Control Power with 8 Selectable Timing Modes

Technical Specification Matrix

ParameterValue
Operating Voltage24 to 48 VAC (50/60 Hz) / 12 to 48 VDC
Timing Range0.05 s to 300 h
Output TypeRelay output (DPDT), Time-limit contact
Contact Rating5 A at 250 VAC (Resistive load)
Input TypeNo-voltage input (NPN) for Reset, Start, and Gate
Dimensions48 x 48 mm (1/16 DIN)
Mounting StylePlug-in, 11-pin
Operating Temperature-10°C to 55°C (operating)
Ingress ProtectionIP40 (panel surface)
WeightApprox. 90 g

Industrial Applications

1. Conveyor Sequence Staggering

Utilizing the ON-delay function to stagger the startup times of multiple heavy-duty motors along a conveyor line.

Problem Solved

Prevents catastrophic inrush currents that can trip circuit breakers and destabilize power distribution networks by firing motors in controlled intervals.

ON-delaySequence ControlInrush Current MitigationMotor Contactors

2. Wastewater Sump Pump Cycling

Integrating the timer into a low-voltage DC logic panel (using the 12-48 VDC input) to regulate the duty cycles of submersible pumps in a treatment facility.

Problem Solved

Maintains a strict operational/rest interval for the pump using the 'Flicker' operating modes, preventing motor burnout and extending mechanical lifespan.

Flicker ModeInterval TimingDC Control LogicDPDT Interlocking

3. Industrial Curing Oven Purge Sequence

Implementing an NPN-triggered OFF-delay or One-shot output to ensure blower fans exhaust industrial ovens prior to burner ignition.

Problem Solved

Guarantees a verifiable delay period up to 300 hours (typically set to minutes) allowing complete evacuation of combustible gases to comply with strict safety standards.

OFF-delayOne-shot OutputNPN No-voltage InputSafety Interlock
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