The PTF08A is an 8-pin surface-mounting relay socket manufactured by OMRON, designed specifically for the LY series general-purpose relays. It supports both DIN-rail mounting and screw mounting, and is widely used in industrial automation control systems.
- Specifiche principali
| Articolo | Specifica | Osservazioni |
| Modello | OMRON PTF08A | Sostituzione: PTF08A‑E (with finger protection) |
| Compatible Relays | LY1, LY1‑D, LY1F, LY1N, LY2, LY2‑CR, LY2‑D, LY2F, LY2N and other 1‑/2‑pole LY series relays | Not suitable for MY series miniature power relays |
| Number of Pins | 8 pins | For 2‑pole relays (3 contatti + 2 coil pins per pole) |
| Corrente nominale | 10A/15A | Slight variations may exist; refer to OMRON official datasheet |
| Tensione nominale | 240VCA | Complies with industrial control standards |
| Wiring Terminals | Morsetti a vite | Dimensioni del terminale: M3.5×8 |
| Montaggio | DIN‑rail + montaggio a vite | Fits standard 35 Guida DIN da mm |
| Isolamento | Insulation resistance ≥ 100 MΩ (at DC 500 V) | Ensures electrical safety |
| Rigidità dielettrica: AC 2000 V | ||
| Ambiente operativo | Temp: Da -25 °C a +55 °C | For industrial environments |
| Umidità: 5%–85% RH (senza condensa) | ||
| Peso | ca. 55 G | Standard for 8‑pin version |
- Caratteristiche & Vantaggi
- Dual mounting design: Supports fast DIN-rail installation and traditional screw fixing for various applications.
- High compatibility: Perfectly matches 1-/2-pole LY series relays; easy plug-and-play with simple clip locking and ejection.
- Safe and reliable: High dielectric strength (AC 2000 V) ensures safe electrical isolation.
- Durable structure: High-temperature resistant engineering plastic with high mechanical strength and long service life.
- Complete series: Also available in PTF11A (11-spillo, 3-palo) and PTF14A (14-spillo, 4-palo) to meet different pole requirements.
- Installazione & Guida al cablaggio
- Metodi di montaggio
DIN-rail mounting: Clip directly onto standard 35 mm DIN rail without tools.
Montaggio a vite: Secure to panel with M3.5 screws; standard hole spacing.
- Precauzioni per il cablaggio
Scollegare l'alimentazione prima del cablaggio per evitare scosse elettriche.
Coppia di serraggio del terminale: 0.8–1.2 N·m to avoid damage.
Recommended wire: 0.5–2.5 mm² copper conductor.
Clearly distinguish contact terminals from coil terminals to avoid miswiring.
- Modelli sostitutivi & Compatibilità
| Modello | Caratteristiche | Applicazione |
| PTF08A | Standard, no finger protection | Controllo industriale generale |
| PTF08A‑E | With finger protection | Areas with frequent operator access |
| PYF08A | Socket for miniature power relays | For MY series only; not compatible with LY series |
| PTFZ‑08‑E | New replacement series | Compatible with LY series; upgraded specifications |
- Applicazioni tipiche
Industrial automation production line control circuits
Motor starting and protection circuits
Signal conversion in electrical control panels
Logic control for machine tools
Building electrical automation systems
- Acquisto & Suggerimenti per l'uso
- Authenticity identification: PTF08A is an original OMRON product. Counterfeits exist; purchase through authorized channels.
- Precauzioni: When used with relays, ensure contact rating matches load requirements.
- Manutenzione: Regularly check terminal tightness to avoid loose connections.
OMRON PTF Series Relay Sockets-Full Models & Cross-Brand Order Codes
The PTF series is OMRON’s surface-mounting relay socket family designed for LY series general-purpose relays, also compatible with G3H/G3HD solid-state relays. They support DIN-rail/screw mounting and cover 2-pole (8-spillo), 3-palo (11-spillo), and 4-pole (14-spillo) versioni.
Below is the complete model list and cross-brand replacement options.
- Complete PTF Series Model List
1.1 Standard Screw Terminal Type (some discontinued, replaced by PTFZ)
| Modello | Pins | Compatible Relays | Caratteristiche | Stato | Sostituzione consigliata |
| PTF08A | 8 | 2-polo: LY1, LY1‑D, LY2, LY2‑CR, LY2‑D, ecc. | No finger protection | Available | PTFZ‑08‑E |
| PTF08A‑E | 8 | Come sopra | With finger protection | Interrotto | PTFZ‑08‑E |
| PTF11A | 11 | 3-polo: LY3, ecc. | No finger protection | Available | — |
| PTF14A | 14 | 4-polo: LY4, ecc. | No finger protection | Available | PTFZ‑14‑E |
| PTF14A‑E | 14 | Come sopra | With finger protection | Interrotto | PTFZ‑14‑E |
1.2 New PTFZ Series (replaces old -E types, with finger protection)
| Modello | Pins | Compatible Relays | Caratteristiche |
| PTFZ‑08‑E | 8 | 2‑pole LY series | Finger protection, enhanced safety |
| PTFZ‑14‑E | 14 | 4‑pole LY series | Finger protection, enhanced safety |
1.3 PTF-PU Series (Push-In Plus, tool-free, wiring efficiency +60%)
| Modello | Pins | Compatible Relays | Caratteristiche |
| PTF‑08‑PU | 8 | 2‑pole LY series | No release lever, Push‑In Plus terminals |
| PTF‑08‑PU‑L | 8 | 2‑pole LY series | With release lever for easier operation |
| PTF‑14‑PU‑L | 14 | 4‑pole LY series | With release lever, Push‑In Plus terminals |
| PTF‑08‑PU‑L | 8 | For LY2‑CR only | Dedicated version |
1.4 Dimensioni
| Modello | Larghezza | Altezza | Profondità | Peso |
| PTF08A / PTFZ‑08‑E | 37 mm | 78.5 mm | 30 mm | ca. 55 G |
| PTF11A | 37 mm | 78.5 mm | 30 mm | ca. 65 G |
| PTF14A / PTFZ‑14‑E | 55.5 mm | 78.5 mm | 30 mm | ca. 80 G |
- OMRON Internal Replacements
| Originale | Stato | Sostituzione | Motivo |
| PTF08A‑E | Interrotto | PTFZ‑08‑E | Structural upgrade, safer finger protection |
| PTF14A‑E | Interrotto | PTFZ‑14‑E | Structural upgrade, safer finger protection |
| PTF08A | Available | PTFZ‑08‑E | Optional safety upgrade |
| PTF14A | Available | PTFZ‑14‑E | Optional safety upgrade |
| All standard PTF | Optional upgrade | PTF‑XX‑PU series | Push‑In terminals for faster, more reliable wiring |
- Sostituzioni tra marchi diversi (Major Industrial Brands)
3.1 Schneider Electric
| OMRON | Schneider Replacement | Compatible Relay | Pins | Montaggio |
| PTF08A / PTFZ‑08‑E | RXZE1M2C | RXM2 (2-polo) | 8 | Guida DIN |
| PTF11A | RXZE1M3C | RXM3 (3-polo) | 11 | Guida DIN |
| PTF14A / PTFZ‑14‑E | RXZE1M4C | RXM4 (4-polo) | 14 | Guida DIN |
| PTF‑08‑PU | RXZE2M2C | RXM2 | 8 | Guida DIN, spring terminal |
3.2 Siemens
| OMRON | Siemens Replacement | Compatible Relay | Caratteristiche |
| PTF08A / PTFZ‑08‑E | 3RH2911‑1FA10 | 3RT20 (2-polo) | 8‑pin, Guida DIN |
| PTF11A | 3RH2911‑1FA20 | 3RT20 (3-polo) | 11‑pin, Guida DIN |
| PTF14A / PTFZ‑14‑E | 3RH2911‑1FA30 | 3RT20 (4-polo) | 14‑pin, Guida DIN |
3.3 Weidmüller
| OMRON | Weidmüller Replacement | Tipo di terminale | Corrente nominale |
| PTF08A | RCM 24008 | Vite | 10UN / 250VCA |
| PTF08A‑E | RCM 24008‑S | Vite, protected | 10UN / 250VCA |
| PTF‑08‑PU | RCM 24008‑P | Primavera | 10UN / 250VCA |
3.4 Contatto della Fenice
| OMRON | Phoenix Contact Replacement | Caratteristiche |
| PTF08A | RT 3081000 | 8‑pin, Guida DIN, screw terminal |
| PTF14A | RT 3141000 | 14‑pin, Guida DIN, screw terminal |
| PTF‑08‑PU | RT 3081010 | 8‑pin, Guida DIN, spring terminal |
3.5 Chinese Brands (Conveniente)
| OMRON | CINT | DELIXI | Vantaggio di costo |
| PTF08A | JZF08A | CDZ08A | ~1/3 of original |
| PTF14A | JZF14A | CDZ14A | ~1/3 of original |
- Selezione & Linee guida per la sostituzione
- Compatibility Rules
Industrial relay sockets follow international standard dimensions and are interchangeable across brands if:
Pin count matches relay pole number
Corrente nominale (≥10A) meets load
Montaggio (DIN-rail/screw) matches panel design
- Terminal Type Selection
Conventional screw: PTF08A / PTF11A / PTF14A-suitable for low-vibration environments
Finger protection: PTFZ series-suitable for areas with frequent access
Push-In Plus: PTF-PU series-ideal for mass wiring, elevata resistenza alle vibrazioni
- Modelli fuori produzione
PTF08A-E / PTF14A-E are discontinued with limited stock.
Use PTFZ series as the preferred replacement.
> Nota: PTF series sockets are rated 10A/250VAC, dielectric strength AC 2000V, operating temp −25 °C to +55 °C, suitable for 0.5–2.5 mm² copper wires.
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