OMRON PTF08A Relay Socket

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.

1. Core Specifications

2. 特徴 & 利点
3. Dual mounting design: Supports fast DIN-rail installation and traditional screw fixing for various applications.
4. High compatibility: Perfectly matches 1-/2-pole LY series relays; easy plug-and-play with simple clip locking and ejection.
5. Safe and reliable: High dielectric strength (交流 2000 V) ensures safe electrical isolation.
6. Durable structure: High-temperature resistant engineering plastic with high mechanical strength and long service life.
7. Complete series: Also available in PTF11A (11-pin, 3-ポール) and PTF14A (14-pin, 4-ポール) to meet different pole requirements.
8. インストール & Wiring Guide
9. 取付方法

DIN-rail mounting: Clip directly onto standard 35 mm DIN rail without tools.

Screw mounting: Secure to panel with M3.5 screws; standard hole spacing.

2. Wiring Precautions

Disconnect power before wiring to prevent electric shock.

Terminal tightening torque: 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.

4. Replacement Models & 互換性

5. 代表的な用途

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

6. Purchasing & Usage Tips
7. Authenticity identification: PTF08A is an original OMRON product. Counterfeits exist; purchase through authorized channels.
8. 予防: When used with relays, ensure contact rating matches load requirements.
9. メンテナンス: 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-pin), 3-ポール (11-pin), and 4-pole (14-pin) versions.

Below is the complete model list and cross-brand replacement options.

1. Complete PTF Series Model List

1.1 Standard Screw Terminal Type (some discontinued, replaced by PTFZ)

1.2 New PTFZ Series (replaces old -E types, with finger protection)

1.3 PTF-PU Series (Push-In Plus, tool-free, wiring efficiency +60%)

1.4 寸法

2. OMRON Internal Replacements

3. Cross-Brand Replacements (Major Industrial Brands)

3.1 シュナイダーエレクトリック

3.2 シーメンス

3.3 Weidmüller

3.4 Phoenix Contact

3.5 Chinese Brands (費用対効果が高い)

4. Selection & Replacement Guidelines
5. Compatibility Rules

Industrial relay sockets follow international standard dimensions and are interchangeable across brands if:

Pin count matches relay pole number

定格電流 (≥10A) meets load

取り付け (DIN-rail/screw) matches panel design

2. 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, high vibration resistance

3. Discontinued Models

PTF08A-E / PTF14A-E are discontinued with limited stock.

Use PTFZ series as the preferred replacement.

> 注記: PTF series sockets are rated 10A/250VAC, dielectric strength AC 2000V, operating temp −25 °C to +55 ℃, suitable for 0.5–2.5 mm² copper wires.