🔍
440R-N23126 440R-N23130 440R-N23131 440R-N23133 440R-N23134 440R-N23135
440R-N23135
  1. 440R-N23126 440R-N23130 440R-N23131 440R-N23133 440R-N23134 440R-N23135
  2. 440R-N23135

Allen Bradley 440R-N23135 Safety Relay

£224.19 inc VAT

In Stock · Delivered in 3–5 Working Days
Estimated UK delivery time, subject to order confirmation, courier services and destination. International delivery times vary.
Technical SpecificationsAllen Bradley
Model 440R-N23135 Allen Bradley
Product Type Single-Function Safety Relay
Series Guardmaster MSR
Supply Voltage 24V AC/DC (50 Hz)
Voltage Type AC/DC
Mounting Type DIN Rail (35mm top hat)
Connection Type Plug-in terminals (removable)
Supply Voltage Range 24V AC/DC ±10%
Input Type Single or dual-channel configuration supported
Housing Type Compact industrial enclosure for control cabinets
✓ Genuine OEM Parts✓ 2-Year Store-Backed Warranty✓ Technical Support

Found a Better Price? We’ll Match or Beat It InstantlySend us the competing price or quote for a personalised offer.

🛡️ 24-Month Drive Outlet Warranty

Every product is 100% new, genuine, and backed by our exclusive 2-year warranty. We are an independent supplier and not an authorised distributor. Manufacturer warranties may not apply. See our Terms and Conditions.

SKU: 440R-N23135 Category: Tag: Brand:
Guaranteed Safe Checkout
Extra Features
  • 100% Brand New & Genuine OEM Product
  • Includes Full 2-Year Warranty for Peace of Mind
  • Fast UK & Worldwide Shipping – Fully Tracked
  • Expert Technical Support from Our In-House Engineers
  • Found a Better Price? We’ll Match or Beat It Instantly

Allen Bradley 440R-N23135 Safety Relay

The Allen Bradley 440R-N23135 (MSR127RP) is a Guardmaster single-function safety relay designed for monitoring emergency stop buttons, magnetic safety switches, and optoelectronic protection devices in industrial environments. Operating at a 24V AC/DC supply , it provides three normally open (N.O.) safety contacts and one normally closed (N.C.) auxiliary output for dependable safety circuit management.

Technical Specifications

Model 440R-N23135 Allen Bradley
Series Guardmaster MSR
Product Type Single-Function Safety Relay
Supply Voltage 24V AC/DC (50 Hz)
Voltage Type AC/DC
Input Configuration 1-channel or 1- and 2-channel monitoring
Safety Outputs 3 N.O. contacts
Auxiliary Output 1 N.C. contact (signalling function)
Reset Mode Manual monitored reset
Performance Level (EN ISO 13849-1) Level e
Stop Category (IEC 60204) 0
Mounting Type DIN Rail (35mm top hat)
Connection Type Plug-in terminals (removable)
Dimensions (W x H x D) 99 x 114.5 x 22.5 mm

Electrical & Performance Details

Supply Voltage Range 24V AC/DC ±10%
Output Configuration 3 N.O. safety outputs + 1 N.C. auxiliary
Input Type Single or dual-channel configuration supported
Reset Function Manual monitored reset for enhanced safety
Stop Function Category 0 (immediate stop)
Performance Level PL e / Category 4 (IEC 62061)
Feedback Circuit Yes, with external contactor monitoring
Start Input Yes (manual start supported)
Relay Contacts Electromechanical type for reliable switching

Mechanical Specifications

Width 99 mm
Height 114.5 mm
Depth 22.5 mm
Mounting 35mm DIN Rail
Connection Type Plug-in removable terminals
Housing Type Compact industrial enclosure for control cabinets

Environmental & Application Suitability

Typical Applications Emergency stop monitoring, magnetic door interlocks, and light curtain safety systems
Monitoring Capability Single or dual-channel with redundancy verification
Stop Function Category 0 for immediate machine shutdown
Suitable For E-stop systems, safety switches, and optical guards
Installation Environment Industrial control panels and safety relay assemblies

Compliance & Certifications

Performance Level PL e (EN ISO 13849-1)
Safety Category Category 4 (IEC 62061)
Stop Category 0 (IEC 60204)
UL / cUL Listed Yes
BG BIA Approved Yes
CE Marked Yes
RoHS Compliant Yes

Related Products & Helpful Links

Frequently Asked Questions

How can I check whether 440R-N23135 is the correct replacement?

Check the exact manufacturer part number, electrical ratings, interface type, mounting and equipment compatibility against your existing equipment and the manufacturer’s datasheet.

How quickly can 440R-N23135 be delivered?

This product is listed as in stock, with estimated UK delivery in 3–5 working days. Delivery depends on order confirmation, courier services and destination.

Where can I check specifications and compatibility?

Review the specification information above and the product’s Downloads or Data Sheets tab, where documents are supplied. Our team can help check part numbers and installation compatibility.

What warranty does Drive Outlet Megastore offer?

Drive Outlet offers its own 2-year return-to-base warranty unless otherwise stated. Manufacturer warranties may not apply; please review the Terms and Conditions before ordering.

Weight 2 kg

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

📄 Download Datasheet

Allen Bradley Supplier UK – Automation Parts & Industrial Controls

Browse Allen Bradley products for industrial automation, PLC systems, PowerFlex drives, SMC soft starters, PanelView HMIs, I/O modules, relays and machine control spares.

⚙️ Genuine OEM Automation Parts
🔎 Search by Part Number
🚚 Fast UK & International Delivery
🛠️ Technical Sourcing Support

Popular Allen Bradley Products

Use the product links below as quick routes into this brand. If you already know your part number, use the search bar for the fastest result.

View Allen Bradley 22-COMM-E PowerFlex 40 Communication Module
View Allen Bradley 1786-RG6 Controlnet RG6 Shield 1000FT Cable
View Allen Bradley 150-F251NBD 251A 400V Soft Start – 132kW
View Allen Bradley 440R-N23117 Single Function Safety Relay
View Allen Bradley 2711P-T7C22D9P Graphic Terminal
View Allen Bradley 20F11NC043JA0NNNNN Inverter Drive – 22kW, IP20

Shop Allen Bradley by Product Category, Series & Specification

Compare Allen Bradley parts by PowerFlex series, ControlLogix or CompactLogix platform, POINT I/O type, voltage, current rating, communication protocol and exact catalogue number.

View Allen Bradley Modules
View Allen Bradley Cables
View Allen Bradley Soft Starts
View Allen Bradley Relays
View Allen Bradley Graphic Terminals
View Allen Bradley PowerFlex 753 Inverters
View All Allen Bradley Products

Need Help Finding the Right Allen Bradley Product?

If you cannot find the exact part number, send us the model code, a photo of the rating plate or the details of the machine it is fitted to. We can help check availability, replacements and suitable alternatives.

Request a Quote / Contact Us

Allen Bradley FAQs

How do I find the correct Allen Bradley product?

The fastest way is to search using the exact manufacturer part number or model code. You can also browse this brand page by product category, series and specification to compare close alternatives.

What should I check before buying Allen Bradley products?

Check the full Allen Bradley catalogue number, series letter, voltage, power rating, firmware or revision requirements, communication option and compatibility with the existing Rockwell Automation system.

Can you help if my exact Allen Bradley part number is not listed?

Yes. Send us the part number, a photo of the label or the machine details and we can check availability, replacement options and suitable alternatives.

Are these products suitable for industrial replacement jobs?

These pages are designed for maintenance teams, panel builders, OEM buyers and engineers who need part-number-led industrial automation spares for repairs, upgrades and breakdown support.

How quickly can you supply Allen Bradley products?

Availability depends on the exact product and quantity required. Check the product page or contact us and we can confirm stock position, lead time and shipping options.

View all Allen Bradley products

440R-N23135_Technical-Data.pdf440R-N23135_Installation-Instructions.pdf

Related products

Need help specifying the correct safety solution?

Share your safety function and wiring requirements — we’ll advise on compatible safety relays/devices.

  • Safety function and wiring guidance
  • Compatible accessories and options
  • Fast quote with suitable alternatives
Request a Quote Speak to an Engineer
Or call: 0161 470 2725