Schmersal SRB301MC Safety Relay – Obsolete PROTECT Series Spare Part
Schmersal SRB301MC Safety Relay – Obsolete PROTECT Series Spare Part When a safety relay fails on a production line built…
Model: SRB402EM
Product Overview
Commercial availability is handled through direct RFQ, model verification and export-oriented follow-up rather than public cart checkout.
Datasheet Preview
Use attached product manuals when available. If the manual is not public yet, request the full file directly through RFQ.
Commercial Path
Product pages on DRIVEKNMS are designed to verify model, brand and series first, then move the buyer into one clean quotation path.
Technical Dossier
The SCHMERSAL SRB402EM is a dual-channel safety relay designed for emergency-stop and safety-gate monitoring applications across heavy industry. As global supply chains face increasing pressure from component shortages and extended lead times, securing a reliable source for this module is a direct operational risk management decision — not merely a procurement formality.
This model occupies a mid-tier scarcity profile: widely specified in legacy machine safety architectures (particularly in European-origin equipment), yet increasingly difficult to source at competitive prices as OEM production cycles shift. Procurement managers who delay sourcing risk paying 30–60% premiums on spot markets or facing unplanned downtime costs that dwarf the component's unit price.
| Brand | SCHMERSAL |
| Model / Part Number | SRB402EM |
| Category | Safety Relay Module |
| Series | SRB |
| Function | Dual-channel emergency-stop & safety-gate monitoring |
| Safety Category | Up to Category 4 / PLe (EN ISO 13849-1) |
| Supply Voltage | 24 V DC / 24–240 V AC |
| Output Contacts | 3 N/O safety contacts + 1 N/C auxiliary |
| Country of Origin | Germany |
| Inventory Status | Available — subject to real-time stock confirmation |
| Lead Time | Typically 3–7 business days (express); 10–20 days (standard freight) |
| Minimum Order Quantity | 1 unit |
Procurement decisions on safety relays are rarely evaluated on unit price alone. The true cost of a wrong sourcing decision includes:
Q: What are your payment terms?
A: Standard terms are 100% T/T in advance for first-time orders. Net-30 terms available for established accounts with credit approval. LC at sight accepted for orders above USD 5,000.
Q: What is your warranty policy?
A: 12 months from shipment date. DOA (Dead on Arrival) units are replaced or refunded within 7 business days of confirmed return receipt. Warranty does not cover damage from incorrect installation or voltage mismatch.
Q: Do you offer volume discounts?
A: Yes. Tiered pricing applies at 5, 10, and 25+ units. Submit your RFQ with quantity requirements for a formal quotation.
Q: What is your return policy?
A: Returns accepted within 30 days for unused, unopened units in original packaging. Return freight is buyer's responsibility unless the unit is confirmed defective.
Q: Can you source discontinued or end-of-life SCHMERSAL parts?
A: Yes. We specialize in sourcing legacy and discontinued industrial components. If the SRB402EM has been superseded, we will identify the correct replacement and confirm functional compatibility before shipment.