ALLEN BRADLEY 440R-M23084

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product origin: America
shipping port: XIAMEN
Lead Time: 3-5 days

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Category Module Brand: Allen Bradley

Allen-Bradley 440R-M23084: Guardmaster Safety Relay (24V AC/DC) with Delayed Outputs for Machine Safeguarding

Product Introduction

The Allen-Bradley 440R-M23084 is a reliable single-function safety relay from the Guardmaster series, engineered to protect personnel and equipment in industrial machine safeguarding systems. It monitors safety input devices like emergency stops, safety gates, and light curtains, triggering controlled shutdowns or alarms when hazards are detected—making it critical for manufacturing, automotive, and material handling sectors.

A key strength is its flexible configuration, supporting 1 or 2 normally closed (N.C.) input circuits or light curtain connections to adapt to diverse safety setups. It features 2 instantaneous normally open (N.O.) safety outputs and 2 N.O. delayed safety outputs (with 0.15–3 seconds adjustable timing), plus 1 N.C. delayed auxiliary output for enhanced control flexibility.

Designed for ease of use, it offers selectable manual or automatic reset and removable terminal blocks for quick wiring and maintenance. LED status indicators simplify diagnostics, while compliance with global safety standards (EN ISO 13849-1, IEC 62061) ensures reliability across international applications. Its compact DIN rail-mount design saves control cabinet space, and 24V AC/DC universal power supply broadens compatibility.

Product Data Attributes

Attribute Category	Specifications
Model Information	Model: Allen-Bradley 440R-M23084 Product Type: Single-Function Safety Relay Series: Guardmaster (MSR138.1 DP / MSR127RP) Core Function: Machine safeguarding & safety circuit monitoring
Electrical Ratings	Power Supply: 24V AC/DC (universal input) Power Consumption: ≤ 4W Contact Rating: 6A @ 24V DC (resistive); 6A @ 250V AC Maximum Input Resistance: 135 ohms Response Time: < 20 ms (instantaneous); 0.15–3 sec (adjustable delayed)
I/O Configuration	Safety Inputs: 1 N.C. contact, 2 N.C. contacts, or light curtain (configurable) Safety Outputs: 2 N.O. (instantaneous); 2 N.O. (delayed) Auxiliary Output: 1 N.C. (delayed) Input Simultaneity: Infinite
Mechanical Specifications	Dimensions (W×H×D): 22.5 mm × 114.5 mm × 45 mm Net Weight: ~0.18 kg (0.4 lbs) Mounting: 35 mm DIN rail Terminal Type: Removable terminal blocks Housing Width: 22.5–45 mm (varies by configuration)
Environmental Ratings	Operating Temperature: -10°C to +55°C Storage Temperature: -40°C to +85°C Humidity: 5–95% RH (non-condensing) Protection Rating: IP20 (enclosure)
Functionality & Diagnostics	Reset Options: Monitored manual or automatic/manual selectable Status Indicators: LED indicators for power, fault, and output status Wiring: Removable terminals for easy installation/maintenance
Safety & Compliance	Certifications: CE, UL, CSA, TÜV Standards: EN ISO 13849-1, IEC 62061, NEMA ICS 6 Safety Category: Compliant with performance level requirements for machine safety
Typical Applications	Emergency stop (E-stop) circuits, Safety gate interlocks, Light curtain monitoring, Safety mat systems, Two-hand control systems, Industrial machine safeguarding Industries: Manufacturing, Automotive, Material Handling, Packaging, Heavy Machinery