440R-W23219
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Original Packaging
Surplus stock in its original box. Units may have been briefly powered on for verification purposes only.
- No visible signs of wear, use, or physical damage.
- Arrives in the original manufacturer packaging — factory seal may be absent and outer box may show minor shelf wear or labeling.
- All standard hardware and accessories included unless otherwise noted.
- Documentation and instructions not guaranteed.
- Date codes or product series may differ from current factory inventory.
- Packaging language and country of origin may vary.
- Backed by Marci Hardware's 1-year warranty. Original manufacturer warranty does not apply.
Marci Hardware Packaging
Surplus stock repacked and shipped in Marci Hardware-branded packaging. Units may have been briefly powered on for verification purposes only.
- No visible signs of wear, use, or physical damage.
- Ships in Marci Hardware-branded or generic aftermarket packaging — original manufacturer box not included.
- Some accessories, hardware, or documentation included with factory-new units may not be present.
- Date codes or product series may differ from current factory inventory.
- Packaging language and country of origin may vary.
- Backed by Marci Hardware's 1-year warranty. Original manufacturer warranty does not apply.
Refurbished
Previously owned or unused units with minor cosmetic imperfections, restored to full working condition.
- May have prior production or field use.
- Each unit is inspected, tested, and cleaned by Marci Hardware before shipment.
- Some accessories, hardware, or documentation included with factory-new units may not be present.
- Backed by Marci Hardware's 1-year warranty. Original manufacturer warranty does not apply.
Overnight Shipping Available
Rush service is available during checkout, or contact us for expedited shipping options:
Phone Number: (832) 343-0718
Email: sales@marcihardware.com
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Ships from Stafford, TX
The Allen-Bradley Guardmaster MSR310P Safety Relay (440R-W23219) is a compact, industrial-grade safety control relay designed to provide reliable monitoring and switching for machine safety circuits. As part of the Guardmaster (legacy Minotaur/MSR) family, this device is used to implement safety functions such as emergency stop monitoring, safety door monitoring, and safety interlock verification.
It is suitable for applications where machinery must be brought to a safe state under fault or operator-initiated conditions. The relay evaluates inputs from safety devices (such as e-stops and safety gates) and controls auxiliary safety outputs, helping ensure compliance with machine safety requirements.
This particular model has been discontinued by the manufacturer, but units may still be available through surplus or authorized suppliers.
Technical Details
| Specification | Details |
|---|---|
| Product Name | Guardmaster MSR310P Safety Relay |
| Model / Part Number | 440R-W23219 |
| Brand / Family | Allen-Bradley Guardmaster (MSR safety relay series) |
| Coil / Control Voltage | 24 V DC safety-rated input |
| Input Monitoring | Automatic and manual reset options |
| Output Type | Auxiliary outputs (typically 3 normally-open solid-state auxiliary outputs) |
| Number of Safety Outputs | Zero fully-rated safety outputs (relays provide monitored auxiliary outputs) |
| Housing Width | Approx. 35 mm (narrow industrial module) |
| Connection Type | Removable screw terminals |
| Mounting | DIN-rail mountable |
| Safety Category | Category 4 / Performance Level e (high integrity functional safety) |
| Standards | Safety relay functions per machinery safety requirements |
| Indicators | Status LEDs for input/output/operation |
| Environment | Designed for industrial temperature and vibration conditions |
| Discontinued Status | No longer manufactured, replacement safety relay families are recommended |
| Typical Uses | Machine safety circuit monitoring, emergency stop and guard interlock supervision |
I will ship within one business day. International buyers are welcome. IF you want Expedited Shipping we can help you as well. We can ship under your (FedeX, UPS, DHL) Account if you have one. We Do Trade-Ins as well. Customer satisfaction is our priority. Call us 8323430718
1 Year Warranty ( Manufacturer warranty DO NOT apply )