Omron PYFZ-08-E Relay Socket — Specs, Review & Buyer's Guide

By Abdullah Zahid
14 min read
Omron PYFZ-08-E 8-pin finger-safe DIN rail relay socket for MY2 and H3YN relays in industrial control panel

Omron PYFZ-08-E Socket, DIN Rail/Surface Mounting, 8-Pin, Screw Terminals (Standard), Finger-Safe — Full Review and Buyer's Guide

If you are specifying or purchasing a relay socket for an Omron MY2, MY2-GS, H3YN, or G3F device and you need DIN rail or panel mounting with finger-safe terminals, the Omron PYFZ-08-E is the part most panel builders reach for first. It is an 8-pin screw-terminal relay socket rated at 10 A class up to 250 VAC, designed specifically for 2-pole DPDT plug-in relays in the Omron MY-series ecosystem. The decision usually comes down to confirming pin count, mounting method, and whether finger-safe construction is required by your site safety standard — and this guide gives you the facts to settle all three quickly.

If you have already confirmed this is the right part, check current pricing and availability at LeadTime.ca — ships worldwide.

Who Should Buy the Omron PYFZ-08-E — and Who Should Not

This socket is the right choice for buyers who meet the following criteria:

  • Your relay is an Omron MY2, MY2-GS, H3YN, or G3F — all 8-pin, DPDT, and officially listed as compatible with PYFZ-08-E in Omron documentation.
  • Your panel uses DIN rail or surface/panel mounting — this socket supports both; PCB-mount installations require a different family.
  • You are wiring with screw terminals — ferrule-terminated stranded or solid conductors are acceptable; push-in spring-clamp terminals are not available on this variant.
  • Your circuit load falls within 10 A class at up to 250 VAC — verify this covers your relay's rated contact load before ordering.
  • Finger-safe construction is required or preferred — either by corporate safety policy, site standards, or for live-panel maintenance access.
  • Your panel dimensions allow approximately 23 mm width, 31 mm height, and 72 mm depth per socket position.

If your relay is a 14-pin, 4-pole MY4-type, you need a 14-pin socket, not the PYFZ-08-E. If your design standard requires push-in terminals, a different PYFZ variant or alternative family applies. Both are discussed in the variant section below.

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What the Omron PYFZ-08-E Actually Does in a Control Panel

The Omron PYFZ-08-E is a relay socket — the mechanical and electrical interface that gets permanently wired into your panel and accepts a plug-in relay. It is not a relay itself. Its job is to hold the relay securely, present the correct 8-pin terminal interface to your field wiring, and allow the relay body to be replaced in seconds without disturbing a single wire. This separation of the relay from the wiring is the entire point of the plug-in socket system, and the PYFZ-08-E delivers it in a finger-safe housing with an integrated hold-down clip and release lever.

The finger-safe construction is the distinguishing characteristic of the PYFZ family compared to open-style PYF sockets. On a PYFZ-08-E, live terminal contacts are shielded from incidental finger contact, which reduces arc-flash and shock risk when technicians work in energized panels. For maintenance-intensive applications — motor starter interlocks, I/O interface relays, conveyor controls — this matters in daily operation, not just on paper. The integrated release lever makes relay removal clean and predictable, which is worth noting for sites where relay replacement happens under time pressure.

The screw terminals accept the conductors that carry coil supply, switched load, and signal connections. Current rating is 10 A class at up to 250 VAC, which covers the vast majority of control circuit relay applications — digital output isolation, signal interposing, small motor contactor control, and timer-driven switching. At approximately 23 mm wide, 31 mm tall, and 72 mm deep, the socket has a compact footprint well suited to dense DIN rail layouts.

Typical System Architecture for the PYFZ-08-E

The PYFZ-08-E sits between the control wiring and the relay body, acting as the permanent field-wiring interface in the relay circuit chain. Here is where it fits in a typical control panel:

  • PLC digital output module or control circuit supply provides coil drive signal and voltage to the socket coil terminals.
  • PYFZ-08-E socket is mounted on DIN rail or panel surface and receives all field wiring at its screw terminals — coil, common, NO, and NC connections are permanently terminated here.
  • Omron MY2, MY2-GS, H3YN timer, or G3F SSR plugs into the socket body and is retained by the hold-down clip.
  • Switched load circuit — motor contactor coil, indicator, solenoid valve, or other control device — is wired to the output contact terminals on the socket.
  • When the relay requires replacement, the technician releases the clip, pulls the relay, and inserts a new one — no rewiring required at any terminal.

Typical Applications and Deployment Scenarios

The PYFZ-08-E is a high-volume, everyday component in industrial panel building. Panel shops and OEM machine builders use it as the standard socket for MY2 relay rows — PLC I/O interface racks where each output channel drives a relay for signal isolation or load switching. The 8-pin DPDT format with 10 A class rating covers most small control loads: pilot lights, contactor coils, solenoids, and timer circuits. Standardizing on a single socket type across a machine range simplifies spare parts stocking and technician training.

In maintenance and retrofit projects, the PYFZ-08-E is frequently specified to replace older open-style relay bases. Sites upgrading to finger-safe hardware as part of an electrical safety program find the PYFZ series a direct mechanical improvement — same relay family, same wiring layout, safer terminal access. The release lever makes relay swaps faster and less error-prone under site time constraints.

For H3YN timer applications, the socket enables the same plug-in convenience — the timer plugs into the same 8-pin socket, so a panel designed for MY2 relays can also host H3YN units without changing the socket or rewiring. G3F solid-state relays similarly use this socket, giving designers the flexibility to mix relay types in one standardized socket row.

Application Typical Deployment
PLC digital output isolation MY2 relay in PYFZ-08-E on DIN rail row, coil driven from PLC output, contacts switching 24 VDC or 120 VAC loads
H3YN timer control circuits H3YN miniature timer plugged into PYFZ-08-E socket on DIN rail in control cabinet, timed output switching downstream devices
G3F solid-state relay mounting G3F SSR in PYFZ-08-E socket, providing plug-in convenience and easy field replacement without load circuit rewiring
Motor starter interlock panels MY2 relay sockets in rows for contactor coil switching and safety interlock signal routing in machinery control panels
Conveyor and packaging machine controls Standardized PYFZ-08-E rows for I/O interposing, simplifying spare parts and relay swap during production maintenance
HVAC and building automation panels MY2 relays in PYFZ-08-E sockets on DIN rail for BMS output isolation and zone control signal switching

Specifications and Variant Comparison for the Omron PYFZ-08-E

Parameter Value
Brand Omron
Catalog Number PYFZ-08-E
Product Type Relay socket / relay accessory
Number of Pins 8
Compatible Relays MY2, MY2-GS, H3YN, G3F
Mounting Method DIN rail and panel/surface mounting
Terminal Type Screw terminals, finger-safe
Rated Current 10 A class at up to 250 VAC
Dimensions (W x H x D) Approx. 23 mm x 31 mm x 72 mm
Color Black

Full technical specifications are available on the product page at LeadTime.ca.

The table below compares the PYFZ-08-E against the most common alternative socket configurations buyers encounter when specifying for MY-series and related relays:

Socket Pin Count Mounting Terminal Type Finger-Safe Compatible Relays
PYFZ-08-E 8 DIN rail / panel Screw Yes MY2, MY2-GS, H3YN, G3F
PYF-08-E (non-finger-safe variant) 8 DIN rail / panel Screw No MY2, H3YN, G3F
14-pin socket (PYFZ-14-E or similar) 14 DIN rail / panel Screw Yes MY4, 4-pole DPDT relays
PCB-mount socket variant 8 PCB direct PCB solder / press-fit Varies MY2 (PCB-mount applications)

If your relay is a 4-pole MY4-type with 14 pins, the PYFZ-08-E will not accept it — the correct socket is a 14-pin variant. Check current availability of the PYFZ-08-E and related sockets at LeadTime.ca.

Expert Verdict: Is the Omron PYFZ-08-E the Right Socket for Your Project?

The Omron PYFZ-08-E is the correct default socket for any panel builder or OEM standardizing on Omron MY2, MY2-GS, H3YN, or G3F plug-in devices. The combination of an 8-pin, 2-pole DPDT interface, finger-safe housing, and dual DIN rail or panel mounting means it fits the overwhelming majority of industrial control relay applications without compromise. The 10 A class rating at up to 250 VAC covers most PLC output isolation, interposing, and timer switching loads. Maintenance teams working in live panels benefit directly from the finger-safe construction and integrated hold-down clip — relay replacement is quick, safe, and tool-light. For sites running large panel relay populations, standardizing on PYFZ-08-E across all 8-pin relay positions reduces spares inventory and simplifies technician training.

There are genuine limitations to be honest about. If your project uses MY4-type 4-pole relays, you need a 14-pin socket — the PYFZ-08-E physically cannot accept them. If your panel design standard mandates push-in or spring-clamp terminals for fast wiring in high-vibration applications, a different socket variant is the right call. PCB-mount relay applications are a separate product family entirely. These are not edge cases to dismiss — they come up in mixed relay populations and in OEM designs that have evolved over time, and ordering the wrong pin count is one of the most common errors this product category sees.

From a procurement standpoint, the PYFZ-08-E is one of the easier parts in industrial automation to source. It is widely stocked across North America and available through specialist automation distributors worldwide, which means lead times are typically short and availability risk is low. Ordering through an automation-focused distributor rather than a general catalog channel adds a practical benefit: a knowledgeable team can cross-reference your relay catalog number, confirm socket compatibility, and flag pin-count mismatches before a wrong part ships to your build. View current stock and pricing for the PYFZ-08-E at LeadTime.ca — available to buyers worldwide.

For volume pricing or to confirm lead time before committing to a build, contact the LeadTime.ca team directly — we ship worldwide.

What Engineers Need to Know Before Ordering the Omron PYFZ-08-E

Community discussion around relay sockets at the exact PYFZ-08-E part number level is sparse — relay sockets rarely generate the forum thread volume that PLCs or drives do. What does appear consistently across r/PLC, PLCTalk, PLCS.net, MrPLC, and distributor Q&A sections is feedback at the Omron PYF and PYFZ family level, and it translates directly to how buyers should approach ordering this part.

The positive picture is consistent: engineers who work with Omron relay sockets regularly describe the PYF and PYFZ families as reliable and straightforward to wire. Terminal numbering is consistent and matches MY-series relay pinouts without ambiguity, which reduces wiring errors during first installation and speeds troubleshooting later. The firm relay retention — relays seat cleanly and the hold-down clip keeps them secure during vibration — is cited repeatedly as a practical advantage in maintenance scenarios. Finger-safe PYFZ variants specifically attract positive mentions in threads where technicians discuss working in energized panels; the reduced exposure to live terminals is a genuine safety improvement that gets noticed in the field. The recurring theme is that these sockets do not generate problems when they are correctly specified and properly installed.

The recurring complaints and ordering mistakes from the community are almost entirely about the selection process, not the product itself. Stripped or damaged screw terminals from overtightening is the most common installation complaint — torque spec discipline matters on screw-terminal components, and the Omron datasheet values should be followed, not estimated. Part number confusion is a persistent source of wrong orders: the similarity between PYF, PYFZ, and PTF families, combined with the 08 versus 14 pin-count distinction in the catalog number, catches buyers who are browsing quickly or comparing catalog listings across distributors. Forum posts repeatedly show engineers ordering an 8-pin socket for a 14-pin MY4 relay, or selecting a PCB-mount variant when the design calls for DIN rail mounting. The guidance from experienced users is always the same: pull the relay datasheet, confirm the Omron-listed compatible socket, and verify the physical format before issuing the purchase order. When community feedback is thin on a specific part number, the right move is to work with a specialist distributor who can do that cross-reference check before the wrong part ships.

Wiring and Installation Overview for the Omron PYFZ-08-E

  • Snap the PYFZ-08-E firmly onto a DIN rail until it locks in place, or secure it to a panel surface using the appropriate mounting screws — verify firm mechanical retention before wiring.
  • Strip conductors to the correct length and, where required by your wiring standard, crimp ferrules onto stranded conductors before inserting into screw terminals.
  • Follow the terminal numbering printed on the socket body and the relay pinout diagram — map coil supply, common, normally open, and normally closed connections correctly before tightening any terminal.
  • Tighten each screw terminal to the torque value specified in the Omron PYFZ-08-E datasheet — do not estimate; overtightening is the leading cause of stripped terminals and intermittent contacts reported by users.
  • Insert the relay or timer into the socket, engage the hold-down clip securely, then apply controlled power and verify correct contact operation before returning the panel to service.

Full wiring diagrams, torque specifications, and conductor size ranges are available in the official Omron PYFZ-08-E datasheet. Engineers requiring complete installation procedures should refer to manufacturer documentation directly.

Compatible Relays and Accessories for the Omron PYFZ-08-E

The PYFZ-08-E is designed to accept the following Omron plug-in devices, as stated in Omron documentation:

  • Omron MY2 — Standard 8-pin DPDT miniature power relay, the primary intended relay for this socket.
  • Omron MY2-GS — Safety-rated variant of the MY2, compatible with PYFZ-08-E for safety relay applications.
  • Omron H3YN — Miniature solid-state timer in the same 8-pin form factor, allowing timer and relay positions to share one socket type on DIN rail.
  • Omron G3F — Solid-state relay in the 8-pin plug-in format, compatible with PYFZ-08-E for SSR applications requiring plug-in convenience.

Accessories associated with the PYFZ-08-E include the integrated hold-down clip and release lever. Confirm which accessories are included with the socket versus what must be ordered separately before finalizing your bill of materials. Marking plates for terminal identification may also be available as separate accessories in the Omron relay socket accessory range.

Wrong-Part Prevention Checklist for the Omron PYFZ-08-E

Before issuing a purchase order for the PYFZ-08-E, verify every item on this checklist against your relay datasheet and panel design documentation:

  1. Confirm the relay is 8-pin, DPDT, and listed by Omron as compatible (MY2, MY2-GS, H3YN, G3F) – do not use with 14-pin or different base relays.
  2. Verify mounting requirements: DIN rail or panel/surface; do not order this socket if you need PCB or direct chassis plug-in types.
  3. Check terminal style: screw terminals are acceptable for your wiring standard and conductor sizes.
  4. Confirm current and voltage ratings (10 A class, up to 250 VAC) are adequate for the relay load and safety standards.
  5. Ensure the panel layout has enough depth and width for the socket plus relay (approx. 72 mm depth, 23 mm width, 31 mm height).
  6. Decide if finger-safe construction is required by corporate or site safety policy; if not required, a non-finger-safe socket variant might be acceptable.
  7. Match any required accessories (e.g., hold-down clip, marking plate) with what is included vs. what must be ordered separately.
  8. Confirm regional approvals and standards (e.g., CE, cULus where applicable) match project and Canadian/North American compliance needs.

If any item on this checklist cannot be confirmed, contact the LeadTime.ca team before ordering — our team can cross-reference your relay catalog number and confirm socket compatibility for your specific application.

Frequently Asked Questions

Is the Omron PYFZ-08-E the right socket for an MY2 relay and an H3YN timer in the same panel?

Yes. Omron documentation lists both the MY2 and H3YN as compatible devices for the PYFZ-08-E. This means you can use a single socket type for both relay and timer positions on the same DIN rail, which simplifies spares stocking and panel standardization. Confirm the specific MY2 and H3YN variants you are using against the current Omron compatibility list before ordering in volume.

What is the difference between the PYF-08-E and the PYFZ-08-E — is the finger-safe version worth it?

The PYFZ-08-E adds finger-safe terminal shielding compared to the open PYF-08-E. Both accept the same 8-pin relays and share the same DIN rail or panel mounting. The finger-safe version is appropriate wherever technicians may access live panels during fault-finding or relay replacement — which is most industrial environments. If your site safety policy or local electrical standards require touch-safe components, the PYFZ-08-E is the correct choice. The PYF-08-E may be acceptable in enclosures that are always de-energized before access.

Is the PYFZ-08-E rated for switching 10 A inductive loads, or does the load type affect the rating?

The socket itself is rated at 10 A class at up to 250 VAC, which defines the maximum current and voltage the terminal contacts can carry. Actual switching ratings for inductive loads depend on the relay inserted into the socket — the relay contact ratings for motor or solenoid loads, not the socket alone, determine the safe inductive load limit. Always check both the relay datasheet and the socket rating together when specifying for inductive load applications, and apply any derating required by your relay's make/break capacity for inductive circuits.

Can I use the PYFZ-08-E for both MY2 relays and G3F solid-state relays in the same row?

Yes. Omron lists both MY2 and G3F as compatible devices for the PYFZ-08-E socket. Mixing MY2 electromechanical relays and G3F SSRs in a single row of PYFZ-08-E sockets is a supported configuration. Verify your specific G3F model number against the current Omron compatibility documentation to confirm the exact variant is covered, as the G3F family includes multiple models.

What happens if I overtighten the screw terminals on the PYFZ-08-E?

Overtightening is the most common installation problem reported across community forums for Omron relay sockets. Excessive torque can strip the terminal screw threads or crack the terminal block, leading to loose connections, intermittent contacts, and potential overheating at the terminal. Always tighten to the torque value specified in the official Omron PYFZ-08-E datasheet and perform a gentle pull test on each wire after tightening to confirm secure seating without over-stress.

Does the PYFZ-08-E work with 14-pin MY4-type relays if I need more pole positions?

No. The PYFZ-08-E is an 8-pin socket and is physically and electrically incompatible with 14-pin relays such as the MY4 family. If your application requires a 4-pole relay, you need a 14-pin socket — the PYFZ-14-E or equivalent. Ordering an 8-pin socket for a 14-pin relay is the most frequently reported misorder in this product category. Always verify the relay pin count before selecting a socket part number.

Why Order the Omron PYFZ-08-E from LeadTime.ca

  • LeadTime.ca ships Omron relay sockets and accessories worldwide — not limited to any single region or country.
  • Automation specialist team can cross-reference your relay catalog number and confirm PYFZ-08-E compatibility before the order ships, reducing the risk of wrong-part returns.
  • Volume pricing available for panel builders and OEMs ordering relay socket quantities — contact for project-specific pricing.
  • Access to related Omron relay and accessory stock, including MY2, H3YN, and G3F devices, simplifying single-source procurement for complete relay socket assemblies.

At-a-Glance Summary

  • Omron PYFZ-08-E is an 8-pin relay socket with finger-safe screw terminals for DIN rail or panel/surface mounting.
  • Officially compatible with Omron MY2, MY2-GS, H3YN, and G3F plug-in relays and timers.
  • Rated at 10 A class at up to 250 VAC — covers the majority of industrial control relay load applications.
  • Approximate dimensions: 23 mm wide, 31 mm high, 72 mm deep — verify clearance in dense DIN rail layouts.
  • Finger-safe construction with integrated hold-down clip and release lever for safer relay servicing in live panels.
  • Not suitable for 14-pin relays (MY4-type), PCB-mount applications, or designs requiring push-in spring-clamp terminals.
  • Widely stocked across North America; available through LeadTime.ca for buyers worldwide.
  • Most common ordering mistake: selecting an 8-pin socket for a 14-pin MY4 relay — always verify pin count before ordering.

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