Force guided relay:
when the module is the RFQ
Separate a force-guided contact relay from a monitored safety relay module so the sourcing sheet asks for the right evidence, not a generic "safety relay" label.
Published 1 November 2026 · By JOYLINKTECH · Definitions cite manufacturer explainers linked in Sources. NEWMAZZ product facts cite the MA9Z family page only.
Buyers often paste "force guided relay" and "safety relay" into the same RFQ line. Manufacturer pages already explain that force-guided contacts are a contact construction, while a safety relay module is a functional device that may use those contacts inside a monitored package. Phoenix Contact states that force-guided relays are sometimes misnamed safety relays, and that a force-guided relay can sit as a basic module inside a safety relay. [1] This page turns that wording gap into a two-path decision, continue/hold checks and a copyable worksheet. It does not publish wiring procedures, SIL claims or JOYLINKTECH lab results.
Two-path fork before you compare quotes
Choose one path and write it on the worksheet. Do not score a bare force-guided relay against a monitored safety module as if they were the same commercial item.
| Path | What you are actually buying | Typical RFQ evidence | Hold when… |
|---|---|---|---|
| A. Force-guided contact relay | An electromechanical relay whose NO and NC contacts are mechanically linked so they cannot both be closed, including after a welding fault. IDEC describes the guide mechanism that keeps the NC open if an NO welds. [2] | Contact arrangement, force-guided / IEC 61810-3 (EN 50205) statement from the candidate datasheet, coil voltage, load side notes. | The RFQ only says "safety relay" but the design needs diagnostics, reset logic or dual-channel monitoring you have not specified. |
| B. Monitored safety relay module | A functional module that monitors inputs (for example E-stop or door channels), applies reset rules and provides safety outputs. It may contain force-guided contacts, but the buy is the module behavior, not the bare relay. | Input type, reset mode, output contact map, mounting, and the module datasheet that names those functions. | A cheaper Path A offer is treated as a drop-in for Path B without a written deviation. |
TE Connectivity notes that evaluating a monitoring contact enables automatic diagnostics each switching cycle, and that force-guided contacts alone do not make a relay "more safe" than an elementary relay for every fault class. [3] Put that caution in the RFQ: ask for the diagnostic story you need, instead of assuming the words "force guided" finish the safety function.
If your buy is a DIN-rail module for monitoring emergency stops or safety door switches, start from the NEWMAZZ MA9Z safety relay module family page. That page lists catalog wording for Category 4 (EN/ISO 13849-1), 3 NO safety contacts + 1 NC auxiliary, dual NPN NC or dual PNP NC input variants, and manual/automatic reset wiring options on the panel description. Those are series catalog statements. Confirm the selected model and its documents before you specify a safety function. [4]
Five continue/hold checks
Mark Path A or Path B on the revision
Input: One sentence naming whether you need a bare force-guided relay for a design you already control, or a monitored module with defined inputs/reset/outputs.
Decision: Continue when the path is explicit. Hold any RFQ that only lists "force guided relay / safety relay" as synonyms.
Evidence to request: The path letter echoed on every supplier reply.
For Path A, demand the force-guided statement on the candidate sheet
Input: Required contact set (at least one NO and one NC in the linked set), coil voltage, and the standard wording you will accept (for example IEC 61810-3 / EN 50205 as printed by the supplier).
Decision: Continue when the datasheet uses force-guided (or forced-contact) language for the offered code. Hold a general-purpose relay quoted as "force guided" without that line.
Evidence to request: Datasheet excerpt. Do not invent a certificate number on behalf of the supplier.
For Path B, demand monitoring behavior, not only contact metal
Input: Which devices feed the module (E-stop, door, light curtain language as applicable), dual-channel expectation, reset mode (manual/automatic/monitored start as your project defines it), and output needs.
Decision: Continue when the module document answers those fields. Hold a Path A relay offered against a Path B bill of materials.
Evidence to request: Module datasheet sections for inputs, reset and outputs. Cross-check the emergency stop safety relay RFQ if E-stop monitoring is the driver.
Separate diagnostics language from marketing adjectives
Input: What restart prevention or feedback monitoring your control design requires, in your own words.
Decision: Continue when the supplier points to a documented feedback/monitoring path. Hold "safe relay" or "SIL relay" as the only answer. TE's note that force-guided contacts support diagnostics when evaluated, rather than replacing design review, is the bar for evidence requests. [3]
Evidence to request: Wiring/application note page for the proposed code (supplier's document, not a blog redraw).
Compare commercial scope on one worksheet revision
Input: Quantity, destination, mounting (for example 35 mm DIN rail for many modules), accessories, and document list.
Decision: Continue to price comparison when each offer lists code, path (A or B), inclusions and deviations. Hold a cheaper conclusion that changed path without a deviation line.
Evidence to request: Itemized quote plus document list. Browse related components on the machine safety catalog.
RFQ worksheet for force-guided vs safety module
Download force-guided relay RFQ worksheet ↓
Project / request revision: Path: A force-guided contact relay / B monitored safety relay module If Path A: contact set, coil voltage, force-guided standard wording required: If Path B: input devices, dual-channel expectation, reset mode, output map: Mounting / enclosure / accessories: Diagnostics / feedback monitoring required (buyer wording): Documents required (datasheet / application note / cert copies if project requires): Quantity / destination / requested delivery date: Supplier response: path, proposed code, deviations, document list Open question | owner | evidence required | resolved date:
For a monitored module oriented to E-stop and door inputs, open MA9Z. For door-side devices that may feed that module, use the safety door switch type map. Send the filled sheet via inquiry or customer@joylinkrobot.com.
Short FAQ
Is a force-guided relay automatically a safety relay module?
No. Phoenix Contact separates the contact construction (force-guided relay) from the functional safety relay device. Ask Path A or Path B explicitly. [1]
Does JOYLINKTECH sell bare force-guided relays as a separate NEWMAZZ family?
The public catalog focus on this site is machine safety families including the MA9Z safety relay module. If you need a Path A discrete relay, say so in the inquiry; do not assume a stocked discrete SKU from these pages.
Will this page give a generic force-guided wiring diagram?
No. Use the supplier document for the proposed code. Generic redraws invent steps this site cannot verify.
References and scope
Checked 1 November 2026. Worksheet and continue/hold steps are JOYLINKTECH procurement compilation. No JOYLINKTECH laboratory testing, stock, price, authorization or AI-citation claims.
- Phoenix Contact: Force-guided relay. Distinguishes force-guided relays from safety relay modules; notes force-guided contacts as a basic module inside safety relays.
- IDEC: What is a force-guided relay?. Mechanically linked NO/NC behavior when an NO contact welds.
- TE Connectivity: Relays in safety-related control systems. Monitoring-contact diagnostics; IEC 61810-3 / EN 50205 context for forced contacts.
- JOYLINKTECH NEWMAZZ MA9Z family page and the 2026 selection manual (PDF). Series catalog claims only; confirm the model.