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Allen-Bradley 440R-H23176 MSR138DP safety relay, 24V DC, 3 N.O. + 1 N.C., dual-channel, DIN rail mount

Allen-Bradley 440R-H23176

SKU: 440R-H23176
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$2,350.00
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Allen-Bradley 440R-H23176

Overview

The Allen-Bradley 440R-H23176 is a Guardmaster MSR138DP safety relay, designed for monitoring dual-channel safety inputs such as emergency stop buttons, safety gates, or light curtains. With 3 normally open (N.O.) safety outputs and 1 normally closed (N.C.) auxiliary output, this unit supports fail-safe switching in safety-related control systems. Operates on 24V DC and mounts easily on a DIN rail.

Key Features

  • Relay Type: Safety relay

  • Model: MSR138DP

  • Input Channels: Dual-channel with monitoring

  • Safety Outputs: 3 N.O. (redundant contacts)

  • Auxiliary Output: 1 N.C.

  • Supply Voltage: 24V DC

  • Mounting Style: DIN rail

  • Reset Type: Monitored manual or automatic

  • Housing: Compact plastic enclosure

Technical Specifications

  • Catalog Number: 440R-H23176

  • Voltage Supply: 24V DC ±20%

  • Power Consumption: ≤2.5W

  • Contact Rating: 6A @ 250V AC / 24V DC

  • Response Time: <20 ms

  • Operating Temperature: -10°C to +55°C

  • Enclosure Protection: IP40 (housing), IP20 (terminals)

  • Standards Compliance: EN ISO 13849-1, EN 62061, IEC 61508, UL, CE

  • Mounting: 35mm DIN rail

Applications

  • Emergency stop circuits

  • Safety gate monitoring

  • Two-hand control systems

  • Light curtain and safety mat interfaces

  • General machine safety circuits

Why Choose the 440R-H23176

  • Meets high safety standards (PLe/SIL3 capable)

  • Provides multiple redundant safety outputs

  • Fast response time improves system performance

  • Compact design for easy panel integration

  • Compatible with a wide range of safety devices

Order Now

The Allen-Bradley 440R-H23176 MSR138DP safety relay is available and ready to ship worldwide. 

New & Genuine Products – Factory Sealed At PLCpartssolution, all our products are 100% new, genuine, and come in original factory-sealed packaging. We guarantee authentic components that meet the highest industry standards for performance and reliability.
1-Year Warranty Included All new products sold by PLCpartssolution come with a 1-year warranty. We stand behind the quality and reliability of our parts, ensuring coverage against manufacturing defects under normal operating conditions.
Disclaimer: PLCpartssolution is an independent supplier of surplus and refurbished industrial automation products. We are not an authorized distributor, reseller, or representative of the brands listed on this website. All trademarks, brand names, and logos are the property of their respective owners. PLCpartssolution is not affiliated with, endorsed by, or approved by ABB, Fanuc, B&R, Rockwell Automation, Schneider Electric, Siemens, or any other manufacturers mentioned.

Description

Allen-Bradley 440R-H23176

Overview

The Allen-Bradley 440R-H23176 is a Guardmaster MSR138DP safety relay, designed for monitoring dual-channel safety inputs such as emergency stop buttons, safety gates, or light curtains. With 3 normally open (N.O.) safety outputs and 1 normally closed (N.C.) auxiliary output, this unit supports fail-safe switching in safety-related control systems. Operates on 24V DC and mounts easily on a DIN rail.

Key Features

  • Relay Type: Safety relay

  • Model: MSR138DP

  • Input Channels: Dual-channel with monitoring

  • Safety Outputs: 3 N.O. (redundant contacts)

  • Auxiliary Output: 1 N.C.

  • Supply Voltage: 24V DC

  • Mounting Style: DIN rail

  • Reset Type: Monitored manual or automatic

  • Housing: Compact plastic enclosure

Technical Specifications

  • Catalog Number: 440R-H23176

  • Voltage Supply: 24V DC ±20%

  • Power Consumption: ≤2.5W

  • Contact Rating: 6A @ 250V AC / 24V DC

  • Response Time: <20 ms

  • Operating Temperature: -10°C to +55°C

  • Enclosure Protection: IP40 (housing), IP20 (terminals)

  • Standards Compliance: EN ISO 13849-1, EN 62061, IEC 61508, UL, CE

  • Mounting: 35mm DIN rail

Applications

  • Emergency stop circuits

  • Safety gate monitoring

  • Two-hand control systems

  • Light curtain and safety mat interfaces

  • General machine safety circuits

Why Choose the 440R-H23176

  • Meets high safety standards (PLe/SIL3 capable)

  • Provides multiple redundant safety outputs

  • Fast response time improves system performance

  • Compact design for easy panel integration

  • Compatible with a wide range of safety devices

Order Now

The Allen-Bradley 440R-H23176 MSR138DP safety relay is available and ready to ship worldwide. 

Condition

New & Genuine Products – Factory Sealed At PLCpartssolution, all our products are 100% new, genuine, and come in original factory-sealed packaging. We guarantee authentic components that meet the highest industry standards for performance and reliability.

Warranty

1-Year Warranty Included All new products sold by PLCpartssolution come with a 1-year warranty. We stand behind the quality and reliability of our parts, ensuring coverage against manufacturing defects under normal operating conditions.

Disclaimer

Disclaimer: PLCpartssolution is an independent supplier of surplus and refurbished industrial automation products. We are not an authorized distributor, reseller, or representative of the brands listed on this website. All trademarks, brand names, and logos are the property of their respective owners. PLCpartssolution is not affiliated with, endorsed by, or approved by ABB, Fanuc, B&R, Rockwell Automation, Schneider Electric, Siemens, or any other manufacturers mentioned.
Allen-Bradley 440R-H23176

Allen-Bradley 440R-H23176

$2,350.00
Add to wishlist
Allen-Bradley 440R-H23176

Allen-Bradley 440R-H23176

Your Price:
$2,350.00
Item Added to Your Cart
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