Relais temporisé à semi-conducteurs 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), large plage de tension, multiple operating modes, and high timing accuracy, suitable for various industrial automation control applications.

1. Spécifications de base

2. Principales fonctionnalités & Avantages
3. Large compatibilité de tension: 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 & économie d'énergie: Low power consumption design meets modern industrial energy standards.
8. Expandable functions: Supports setting ring (vendu séparément) to lock time settings and prevent misoperation; optional faceplate available for different design needs.
9. Câblage & Notes d'installation
10. Pin configuration: 8-pin design, requires dedicated socket (par ex., P2CF-08-E).
11. Wiring precautions:

Polarity must be observed for DC power terminals.

Bornes d'entrée (6-7): ON impedance ≤ 1 kΩ, OFF impedance ≥ 100 kΩ.

Output contacts rated at 5 UN; ne pas surcharger.

3. Montage: Standard DIN rail or panel flush mounting; allow space for heat dissipation.
4. Applications typiques

Motor starting control (star-delta conversion delay)

Sequential equipment control (delayed switching of multiple processes)

Intermittent operation control (periodic start/stop)

Safety protection delay (protection contre les surcharges, fault delay alarm)

Automated production line process control

Timing control for lighting and HVAC systems

5. Model Variations & Remplaçants
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. Options de remplacement:

Omron upgraded alternatives: H3CR-F8 / H3CR-G8 (fonctions améliorées)

Autres marques: Schneider RE22 series, Siemens 3RP series timer relays

6. Précautions d'utilisation
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. Température ambiante de fonctionnement: -10°C à +55°C; avoid moisture, poussière, et environnements corrosifs.
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 DEPUIS (48×48 mm) solid-state timer relays, including multi-function, dual-function, étoile-triangle, 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

Plage de temps: 0.05 s to 300 h, 18 plages sélectionnables

Sortir: Timed DPDT relay contacts, 5 Un courant nominal

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 Remplacements de marques internationales

Notes de remplacement:

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

Siemens 3RP series: Conception modulaire, Indications LED, 10 plages de synchronisation, Protection IP40.

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

3.2 Remplacements de marques nationales chinoises

Avantages: Au prix d'environ 1/3 à 1/2 de marques importées, compatible with domestic power grids, with local technical support.

4. Key Matching Parameters for Replacement

5. Usage & Directives de remplacement
6. Correspondance fonctionnelle: Select equivalent function type to avoid logic errors due to missing features.
7. Compatibilité de câblage: 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. Adéquation environnementale: For industrial use, select devices with protection rating ≥ IP20.
10. Certification compliance: For export equipment, ensure replacements carry UL, CE, CCC or equivalent certifications.