OMRON PYFZ-08-E Relay Socket

Manufacturer Information of OMRON PYFZ-08-E

1. Brand Owner

OMRON Corporation

Headquarters: Kyoto, Japan

2. Actual Production Plant (Key Information)

The PYFZ-08-E is a matching socket for MY2N-GS relays. Mass production mainly located in China.

Manufacturer: OMRON Electronics Components (Shenzhen) Co., Ltd.

Address: Datianyang OMRON Industrial Park, Bao’an District, Shenzhen, Guangdong Province

Marking on housing: MADE IN CHINA (vast majority of new original units in circulation)

Small batches of legacy stock manufactured in Indonesia (MADE IN INDONESIA), now discontinued.

No mass production version made in Japan. Claims of “Japan imported” from some merchants are misleading.

Model Code Explanation

PYFZ: Front-wiring relay socket series

08: 8-pin base (DPDT, 2NO+2NC)

-E: Finger protection structure (IP20). Prevent accidental electric contact. Round bare lugs are prohibited; fork-type terminals are recommended.

2. Compatible Relays (8-pin MY2 Series)

✅ MY2N-GS / MY2-GS-R / MY2N-D2-GS / MY2N-J (legacy model)

Compatible domestic equivalent: HH52P 8-pin relay

⚠️ Incompatible: MY4N (14-pin), LY2N (large 8-pin)

3. Main Electrical Specifications

4. Mounting Methods
5. 35 mm Standard DIN Rail mounting (standard solution for control cabinets)
6. Screw mounting: 2 × M4 screws

Comes with a yellow relay retaining clip to avoid loosening under vibration.

5. PYFZ-08-E VS PYF08A-E Comparison
6. PYF08A-E: Older version, without finger protection, lower cost
7. PYFZ-08-E: New upgraded version, equipped with finger protection (-E), deeper terminal cavity for higher safety. Direct replacement for PYF08A-E.
8. Pin Definition (Standard MY2 Wiring)

A1(13), A2(14): Relay coil

Common terminals: 9, 12

Normally Open (NO): 5 (9-5), 8 (12-8)

Normally Closed (NC): 1 (9-1), 4 (12-4)

7. Selection Notes
8. Round bare cable lugs are forbidden at terminals to prevent short circuit and electric shock risks;
9. For tool-free spring-cage terminals: Select PYF-08-PU;
10. Optional separate retaining clip accessory: PYC-A1.
11. Supplementary Remarks
12. Intellectual property: Design standards, molds and quality control are fully defined by OMRON Japan. The Shenzhen factory is a wholly-owned OMRON manufacturing base; all products count as genuine original goods.
13. Counterfeit differentiation: Imitated sockets feature similar appearance but lack original OMRON molded markings and valid UL file numbers.
14. How to verify origin from physical unit

Check engraving on the rear of the socket:

MADE IN CHINA → Shenzhen plant

MADE IN INDONESIA → Obsolete Indonesian batch (very limited stock)

Genuine vs Counterfeit Identification Guide for OMRON PYFZ-08-E

(Reference checklist for physical inspection)

1. Engraving on Socket Rear (Most Critical)

✅ Genuine Features

1. Font: Integrally molded or laser engraved; clear, uniform depth without burrs at edges
2. Complete marking content:

`OMRON`

`PYFZ-08-E`

`MADE IN CHINA`

Along with UL certification number & electrical rating (10 A 250 V~)

3. OMRON logo: Standard letter spacing, perfectly circular letter O without distortion;
4. Digit “0” in model `-08-E` has smooth round shape. Counterfeits often print “0” as “8”.

❌ Common Defects on Imitations

Blurry uneven printing; marking peels off when scraped hard (printed instead of molded);

Missing UL code or electrical rating text;

Wrong model markings: `PYFZ-80-E`, `PYF08E` and other invalid codes.

2. Housing Plastic & Mechanical Structure (Unique Finger Protection for PYFZ Series)
3. Genuine Plastic Material

Flame-retardant PA66 raw material, matte black with fine texture; no cheap glossy sheen under strong light.

Deep terminal cavity (upgraded finger protection design exclusive to PYFZ). Metal terminals are nearly concealed to meet IP20 touch-safe requirement.

Most counterfeits copy the shell of legacy PYF08A-E, with shallow cavities and no effective finger protection.

2. Side retaining clip (relay lock)

Genuine yellow clip with proper tightness; firmly locks MY2N-GS without loosening or accidental ejection.

Counterfeit yellow clips use brittle material, prone to cracking after repeated plugging. Color is pale lemon yellow while genuine is dark golden yellow.

3. Terminal Screws & Conductive Metal Parts
4. Screws: M3 galvanized screws with standard regular cross slots;
5. Conductive copper strips: Oxygen-free copper substrate with uniform plating, no impurities on cross-section.
6. Counterfeit defects: Thin recycled copper strips; screws prone to thread slipping; obvious heating under continuous load.
7. DIN Rail Latch (Bottom Rail Lock)

Genuine bottom latch provides strong spring rebound; minimal lateral shake when mounted on 35 mm DIN rail.

Low-grade counterfeit latches have weak spring force; prone to shifting or dropping under cabinet vibration.

5. Packaging Identification
6. Genuine individual pack: Grey OMRON plastic bag printed with model & barcode; master carton is official OMRON carton with outer barcode.
7. Loose stock packed only in transparent plastic bags are highly suspected parallel or counterfeit goods.
8. Important note: Genuine OMRON products do NOT come with pre-attached Chinese adhesive labels. Any Chinese labels are added later by domestic distributors and cannot be used as authenticity evidence.
9. Misleading Sales Pitch Warnings
10. “PYFZ-08-E manufactured in Japan” → False. All new genuine units currently circulating are made in Shenzhen, China.
11. “Indonesian version is superior to Chinese version” → Indonesian batches are discontinued. Most so-called Indonesian stock on market are refurbished counterfeits.
12. “PYF08A-E and PYFZ-08-E are identical”

Structural difference: PYFZ has finger protection and deeper terminal cavity; PYF08A-E has no touch protection. Similar appearance but different molds.

7. Three-Step Quick On-site Inspection
8. Check full model number on rear housing: Must be PYFZ-08-E; PYFZ-80-E does not exist.
9. Inspect depth of terminal cavity to confirm metal terminals cannot be touched by fingers.
10. Verify markings are integrally molded, with complete UL number and electrical ratings.

Application Cases of OMRON PYFZ-08-E (Matched with MY2N-GS 8-pin Miniature Relay)

The socket cannot operate independently. Standard assembly: PYFZ-08-E + MY2N-GS intermediate relay. DPDT 10 A contacts, widely used for signal transfer, power amplification and electrical isolation inside control cabinets.

Advantages: IP20 finger protection, DIN rail mount, suitable for panels accessible by operators and compliant with machinery safety specifications.

Case 1: PLC Output Signal Isolation & Amplification (Most Common Scenario)

Application Background

Transistor outputs of compact PLC have low load capacity (~0.3 A), and cannot directly drive solenoid valves, indicator lamps or buzzers.

Solution

1. PLC output → MY2N relay coil (mounted on PYFZ-08-E)
2. Relay NO contacts switch external AC220 V loads

Wiring Logic

13, 14: Relay coil driven by PLC DC24 V output

9, 12: Common terminals; 8,5 NO contacts control loads

Target Industries

Packaging machinery, conveyor lines, HVAC control cabinets, small injection molding auxiliary equipment

Selection Reason

Finger protection of PYFZ prevents accidental contact during live maintenance; neat arrangement for dense DIN rail layout.

Case 2: Remote Start/Stop Control for Fans & Water Pumps

Application Background

Remote control cabinet sends passive start/stop signals to locally switch AC220 V contactor coils.

Solution

Remote passive switch signal triggers intermediate relay; relay contacts control the coil circuit of AC contactor.

Feature

Electrical isolation between signal circuit and power circuit to avoid interference propagating from field wiring to central control cables.

Applicable to: Building HVAC, small sewage treatment water pumps, workshop exhaust fan control cabinets.

Case 3: Auxiliary Status Feedback for Safety Circuits

Application Background

Safety door switches and emergency stop switches are wired in series into safety relays. Emergency stop status needs passive feedback signal sent to PLC.

Solution

On/off status of safety circuit actuates MY2N relay; contacts on PYFZ-08-E transmit status feedback to PLC.

Caution: This standard intermediate relay shall NOT cut the main safety circuit, only for signal collection. Safety shutdown must rely on safety relays.

Applicable to: Automated production lines, robot guard enclosures, peripheral signal acquisition for stamping machines.

Case 4: Dual Independent Indicator Light Status Display (Full utilization of DPDT contacts)

Application Background

Equipment requires two separate passive signals: “Running” and “Fault”.

Solution

Two isolated contact sets of MY2 relay:

One NO contact: Running indicator lamp;

One NC contact: Normally-on fault lamp, cuts off after equipment startup.

The 8-pin PYFZ-08-E provides two fully isolated contact groups without mutual interference.

Typical equipment: Assembly line control boxes, elevator machine room auxiliary cabinets, small test machines.

Case 5: DC24 V Sensor Signal Conversion for AC220 V Alarm Output

Application Background

Photoelectric / proximity sensors (DC24 V NPN/PNP) detect material shortage and trigger 220 V audible & visual alarm.

Solution

Sensor signal energizes intermediate relay coil; relay contacts switch power supply for alarm.

Industries: Logistics sorting lines, packaging inspection equipment, silo low-material alarm.

Case 6: Passive Dry Contact Conversion for Inverter Fault Signals

Application Background

Fault output of inverter is transistor signal, while upper DCS/HMI system only accepts passive dry contacts.

Solution

Inverter fault output drives MY2N relay; contacts on the socket output passive dry contacts to upper DCS or touchscreen.

Benefit: Achieve strong/weak current isolation and prevent harmonic interference from inverters disturbing communication circuits.

Applicable to: Water supply inverter cabinets, air compressor control cabinets, textile machinery drive systems.

Unsuitable Application Scenarios for PYFZ-08-E (Risk Reminders)

1. Continuous load current  8 A or frequent switching of high-power loads → risk of contact burnout; switch to LY series large relay sockets.
2. Cabinets with heavy dust and high humidity without enclosure: Sealed relays are recommended; standard MY2 relays lack moisture resistance.
3. Main safety shutdown circuit breaking: Standard intermediate relays are prohibited. OMRON G7SA safety relays with matched safety sockets must be adopted.

Standard Bill of Materials for Engineering Use

Relay Socket: PYFZ-08-E

Relay Body: MY2N-GS DC24 V / AC220 V (select coil voltage on demand)

Retaining Clip: PYC-A1 (recommended for equipment exposed to heavy vibration)