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Allen-Bradley 440R-D23171 MSR138DP safety relay, 24V DC, 3 N.O., 1 N.C., dual-channel, DIN rail mount.

Allen-Bradley 440R-D23171

SKU: 440R-D23171
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$390.00
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Allen-Bradley 440R-D23171

Overview

The Allen-Bradley 440R-D23171 is a Minotaur MSR138DP safety relay designed to monitor dual-channel safety input devices 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 24V DC relay supports Category 4 and PLe safety circuits. Its slim DIN rail form factor and LED diagnostics make it ideal for machine builders and integrators.

Key Features

  • Series: Minotaur MSR138DP

  • Control Voltage: 24V DC

  • Inputs: Dual-channel monitoring with cross-fault detection

  • Outputs:

    • 3 N.O. safety outputs

    • 1 N.C. auxiliary output

  • Reset Modes: Manual or automatic reset selectable

  • Mounting: DIN rail

  • Status LEDs for power, input, and output

  • Safety Rating: PLe, SIL 3, Category 4 (EN ISO 13849-1)

Technical Specifications

  • Catalog Number: 440R-D23171

  • Power Supply: 24V DC ±10%

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

  • Response Time: < 25 ms

  • Mounting Width: 22.5 mm

  • Operating Temperature: -10 to +55 °C (14 to 131 °F)

  • Enclosure Type: Open (IP20)

  • Standards: UL, CE, cULus, TÜV, SIL 3, PLe

Applications

  • Emergency stop and interlock switch monitoring

  • Light curtain safety circuits

  • Safety gate and door interlocking

  • Machine shutdown control

  • Industrial safety compliance for OEMs

Why Choose the 440R-D23171?

  • High-integrity safety design with dual-channel monitoring

  • Compact DIN rail design saves panel space

  • Simple wiring with integrated cross-fault detection

  • Flexible reset options (manual or automatic)

  • Meets international safety standards for machinery

Order Now

The Allen-Bradley 440R-D23171 MSR138DP safety relay is in stock and ready to ship. 

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-D23171

Overview

The Allen-Bradley 440R-D23171 is a Minotaur MSR138DP safety relay designed to monitor dual-channel safety input devices 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 24V DC relay supports Category 4 and PLe safety circuits. Its slim DIN rail form factor and LED diagnostics make it ideal for machine builders and integrators.

Key Features

  • Series: Minotaur MSR138DP

  • Control Voltage: 24V DC

  • Inputs: Dual-channel monitoring with cross-fault detection

  • Outputs:

    • 3 N.O. safety outputs

    • 1 N.C. auxiliary output

  • Reset Modes: Manual or automatic reset selectable

  • Mounting: DIN rail

  • Status LEDs for power, input, and output

  • Safety Rating: PLe, SIL 3, Category 4 (EN ISO 13849-1)

Technical Specifications

  • Catalog Number: 440R-D23171

  • Power Supply: 24V DC ±10%

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

  • Response Time: < 25 ms

  • Mounting Width: 22.5 mm

  • Operating Temperature: -10 to +55 °C (14 to 131 °F)

  • Enclosure Type: Open (IP20)

  • Standards: UL, CE, cULus, TÜV, SIL 3, PLe

Applications

  • Emergency stop and interlock switch monitoring

  • Light curtain safety circuits

  • Safety gate and door interlocking

  • Machine shutdown control

  • Industrial safety compliance for OEMs

Why Choose the 440R-D23171?

  • High-integrity safety design with dual-channel monitoring

  • Compact DIN rail design saves panel space

  • Simple wiring with integrated cross-fault detection

  • Flexible reset options (manual or automatic)

  • Meets international safety standards for machinery

Order Now

The Allen-Bradley 440R-D23171 MSR138DP safety relay is in stock and ready to ship. 

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-D23171

Allen-Bradley 440R-D23171

$390.00
Add to wishlist
Allen-Bradley 440R-D23171

Allen-Bradley 440R-D23171

Your Price:
$390.00
Item Added to Your Cart
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