Relè temporizzato a stato solido Omron H3CR-A8

The Omron H3CR-A8 is an 8-pin multi-function solid-state timer relay belonging to the H3CR-A series. It features a 1/16 DIN standard size (48×48 mm), ampio intervallo di tensione, multiple operating modes, and high timing accuracy, suitable for various industrial automation control applications.

1. Specifiche principali

2. Caratteristiche principali & Vantaggi
3. Wide voltage compatibility: Supports AC/DC universal power supply, reducing inventory part numbers.
4. Flexible multi-mode operation: 5 operating modes cover diverse control requirements without device replacement.
5. Extended timing range: 0.05 s to 300 H, satisfying both millisecond-level and long-duration control.
6. High precision timing: Solid-state circuit design ensures stable accuracy, superior to conventional mechanical timers.
7. Eco-friendly & risparmio energetico: Low power consumption design meets modern industrial energy standards.
8. Expandable functions: Supports setting ring (sold separately) to lock time settings and prevent misoperation; optional faceplate available for different design needs.
9. Cablaggio & Note di installazione
10. Pin configuration: 8-pin design, requires dedicated socket (per esempio., P2CF-08-E).
11. Wiring precautions:

Polarity must be observed for DC power terminals.

Input terminals (6-7): ON impedance ≤ 1 kΩ, OFF impedance ≥ 100 kΩ.

Output contacts rated at 5 UN; non sovraccaricare.

3. Montaggio: Standard DIN rail or panel flush mounting; allow space for heat dissipation.
4. Applicazioni tipiche

Motor starting control (star-delta conversion delay)

Sequential equipment control (delayed switching of multiple processes)

Intermittent operation control (periodic start/stop)

Safety protection delay (protezione da sovraccarico, fault delay alarm)

Automated production line process control

Timing control for lighting and HVAC systems

5. Model Variations & Sostituzioni
6. Same-series models:

H3CR-A8: Standard 8-pin type

H3CR-A8S: With instantaneous contact output

H3CR-A: 11-pin type (8 operating modes)

2. Replacement options:

Omron upgraded alternatives: H3CR-F8 / H3CR-G8 (funzioni migliorate)

Other brands: Schneider RE22 series, Siemens 3RP series timer relays

6. Precauzioni per l'uso
7. Supply voltage must remain within rated range; excessive fluctuation may affect accuracy.
8. Do not directly drive high-current loads with output contacts; use a contactor for switching.
9. Confirm the selected time range before setting to avoid incorrect configuration.
10. Ambient operating temperature: -10°C fino a +55°C; evitare l'umidità, polvere, and corrosive environments.
11. Regularly inspect terminal connections to prevent poor contact due to loosening.

Complete Omron H3CR Series Timer Relays & Cross-Reference Models

1. H3CR Series Overview

The Omron H3CR series is a family of 1/16 DA (48×48 mm) solid-state timer relays, including multi-function, dual-function, star-delta, and off-delay types. It is available in 8-pin and 11-pin versions with wide AC/DC voltage ranges and timing accuracy up to ±0.2% FS.

2. Full Series Model Classification

2.1 Multi-Function Timers-H3CR-A Series

Timing range: 0.05 s to 300 H, 18 selectable ranges

Produzione: Timed DPDT relay contacts, 5 Una corrente nominale

2.2 Dual-Function / Star-Delta Timers-H3CR-F Series

Key feature: Independent setting of run/pause time, allowing combination of short and long durations.

2.3 Off-Delay Timers-H3CR-H Series

Key feature: Operates with delay after power interruption, ideal for safe equipment shutdown.

2.4 Special-Function Timers-H3CR-G Series

3. Cross-Reference Models from Other Brands

3.1 International Brand Replacements

Replacement notes:

Schneider RE22 series: Wide voltage (24-240V CA/CC), NFC configuration, ±0.5% accuracy.

Siemens 3RP series: Progettazione modulare, Indicazione LED, 10 intervalli di tempo, Protezione IP40.

ABB CT series: Economico, 3 basic models cover full functions, 0.05 s-300 h range.

3.2 Chinese Domestic Brand Replacements

Vantaggi: Priced at approximately 1/3 A 1/2 of imported brands, compatibile con le reti elettriche domestiche, with local technical support.

4. Key Matching Parameters for Replacement

5. Usage & Linee guida per la sostituzione
6. Abbinamento funzionale: Select equivalent function type to avoid logic errors due to missing features.
7. Wiring compatibility: Pin definitions may vary by brand; always verify wiring diagrams before replacement.
8. Time calibration: Re-adjust timing settings after replacement to ensure accuracy.
9. Environmental suitability: For industrial use, select devices with protection rating ≥ IP20.
10. Conformità alla certificazione: For export equipment, ensure replacements carry UL, CE, CCC or equivalent certifications.