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440R-M23088
440R-M23088
  1. 440R-M23088
  2. 440R-M23088

Allen Bradley 440R-M23088 Safety Relay

£321.94 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-M23088 Allen Bradley
Product Type Monitoring Safety Relay with Delayed Outputs
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 removable terminals
Supply Voltage Range 24V AC/DC ±10%
Output Type Electromechanical relay contacts
Input Type Single or dual-channel monitoring
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Allen Bradley 440R-M23088 Safety Relay

The Allen Bradley 440R-M23088 (MSR138.1DP) is a monitoring safety relay with delayed outputs designed to provide flexible, controlled shutdown functionality for safety-critical applications. Operating from a 24V AC/DC supply , it offers three delayed and two instantaneous normally open (N.O.) safety outputs for both immediate and time-delayed circuit interruption, ensuring personnel and machine safety during emergency or controlled stop conditions.

Technical Specifications

Model 440R-M23088 Allen Bradley
Series Guardmaster MSR
Product Type Monitoring Safety Relay with Delayed Outputs
Supply Voltage 24V AC/DC (50 Hz)
Voltage Type AC/DC
Input Configuration 1-channel or 1- and 2-channel
Safety Outputs (Delayed) 3 N.O. contacts
Safety Outputs (Instantaneous) 2 N.O. contacts
Auxiliary Outputs None
Performance Level (EN ISO 13849-1) Level e
Stop Category (IEC 60204) 1
Release Delay Adjustable 0.5…10 seconds
Mounting Type DIN Rail (35mm top hat)
Connection Type Plug-in removable terminals
Dimensions (W x H x D) 99 x 114.5 x 45 mm

Electrical & Performance Details

Supply Voltage Range 24V AC/DC ±10%
Safety Outputs 3 delayed + 2 instantaneous N.O. contacts
Output Type Electromechanical relay contacts
Input Type Single or dual-channel monitoring
Release Delay 0.5 to 10 seconds adjustable via potentiometer
Safety Category Category 4 / Performance Level e
Stop Function Category 1 controlled stop (IEC 60204)
Feedback Circuit Yes, for external contactor monitoring
Start Input Yes (manual or automatic start supported)
Muting Function No

Mechanical Specifications

Width 99 mm
Height 114.5 mm
Depth 45 mm
Mounting 35mm DIN rail
Connection Plug-in removable terminals with detachable clamps
Construction Compact, modular safety relay housing

Environmental & Application Suitability

Typical Applications Emergency stop monitoring, magnetic interlocks, light curtain systems, and other optoelectronic protection equipment
Stop Function Category 1 controlled stop with delay
Monitoring Capability Single and dual-channel safety device inputs
Suitable For E-stop buttons, magnetic safety switches, and optical guards
Not Suitable For Proximity, position, or tactile sensors
Installation Environment Industrial control cabinets and safety panels

Compliance & Certifications

Performance Level PL e (EN ISO 13849-1)
Stop Category 1 (IEC 60204)
UL / cUL Listed Yes
CE Marked Yes
RoHS Compliant Yes

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Frequently Asked Questions

How can I check whether 440R-M23088 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-M23088 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

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440R-M23088_Technical-Data.pdf

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