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440R-M23084 | Allen-Bradley Guardmaster MSR138.1DP Safety Relay 24V AC/DC
- Regular price
- $312.00
- Sale price
- $312.00
- Regular price
-
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Product Description P/N: 440R-M23084
Description
The Allen-Bradley 440R-M23084 is a Guardmaster MSR138.1DP single-function safety relay designed for machine safeguarding and emergency-stop monitoring. Operating at 24V AC/DC, this relay provides reliable safety functionality with flexible input options, delayed output capability, and robust safety-rated contacts for demanding industrial environments.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Series | Guardmaster Safety Relays |
| Part Number | 440R-M23084 |
| Product Type | Single-Function Safety Relay |
| Power Supply | 24V AC/DC |
| Power Consumption | 4 W |
| Input Options | 1 N.C., 2 N.C., or Light Curtain |
| Input Simultaneity | Infinite |
| Max Input Resistance | 135 Ω |
| Reset Type | Monitored Manual or Auto/Manual |
| Safety Outputs (Instant) | 2 N.O. |
| Safety Delayed Outputs | 2 N.O., 1 N.C. |
| Time Delay | 0.15–3 ms |
| Series | MSR138.1DP |
| Dimensions (W x H x D) | 99 mm x 114.5 mm x 45 mm |
| Application | Machine Guarding & E-Stops |
| Manufacturer | Rockwell Automation |
Information About 440R-M23084
The Allen-Bradley 440R-M23084 Guardmaster MSR138.1DP is a universal, single-function safety relay engineered for applications requiring Category-rated protection and dependable monitoring of safety devices. It supports three input configurations—including 1 N.C. contact, 2 N.C. contacts, or safety light curtains—making it adaptable for emergency stops, guard monitoring, and optical safety devices. The relay features two instantaneous safety N.O. outputs for direct safety control and two delayed N.O. outputs plus one delayed N.C. output for controlled stopping or staged shutdown sequences. Reset functions can be configured as monitored manual or auto/manual to suit system requirements.
Key Features:
- Supports 1-NC, 2-NC, or safety light curtain inputs
- Two N.O. safety outputs (instantaneous)
- Two N.O. and one N.C. delayed safety outputs
- 24V AC/DC power with low 4W consumption
- Configurable reset: monitored manual or auto/manual
- Infinite input simultaneity
- Max allowable input resistance of 135 Ω
- Universal housing for simple panel integration
- Ideal for E-Stops, guard switches, and light-curtain applications
- Guardmaster MSR138.1DP 24V AC/DC single-function safety relay with 4 N.O. outputs (instant and delayed).
Designed for 24V AC/DC operation with a low 4W power consumption, the 440R-M23084 offers infinite input simultaneity, 135-ohm allowable input resistance, and fast switching response of 0.15–3 ms. Its slim housing and standardized wiring layout simplify integration into existing Guardmaster safety architectures.
Description
The Allen-Bradley 440R-M23084 is a Guardmaster MSR138.1DP single-function safety relay designed for machine safeguarding and emergency-stop monitoring. Operating at 24V AC/DC, this relay provides reliable safety functionality with flexible input options, delayed output capability, and robust safety-rated contacts for demanding industrial environments.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Series | Guardmaster Safety Relays |
| Part Number | 440R-M23084 |
| Product Type | Single-Function Safety Relay |
| Power Supply | 24V AC/DC |
| Power Consumption | 4 W |
| Input Options | 1 N.C., 2 N.C., or Light Curtain |
| Input Simultaneity | Infinite |
| Max Input Resistance | 135 Ω |
| Reset Type | Monitored Manual or Auto/Manual |
| Safety Outputs (Instant) | 2 N.O. |
| Safety Delayed Outputs | 2 N.O., 1 N.C. |
| Time Delay | 0.15–3 ms |
| Series | MSR138.1DP |
| Dimensions (W x H x D) | 99 mm x 114.5 mm x 45 mm |
| Application | Machine Guarding & E-Stops |
| Manufacturer | Rockwell Automation |
Information About 440R-M23084
The Allen-Bradley 440R-M23084 Guardmaster MSR138.1DP is a universal, single-function safety relay engineered for applications requiring Category-rated protection and dependable monitoring of safety devices. It supports three input configurations—including 1 N.C. contact, 2 N.C. contacts, or safety light curtains—making it adaptable for emergency stops, guard monitoring, and optical safety devices. The relay features two instantaneous safety N.O. outputs for direct safety control and two delayed N.O. outputs plus one delayed N.C. output for controlled stopping or staged shutdown sequences. Reset functions can be configured as monitored manual or auto/manual to suit system requirements.
Key Features:
- Supports 1-NC, 2-NC, or safety light curtain inputs
- Two N.O. safety outputs (instantaneous)
- Two N.O. and one N.C. delayed safety outputs
- 24V AC/DC power with low 4W consumption
- Configurable reset: monitored manual or auto/manual
- Infinite input simultaneity
- Max allowable input resistance of 135 Ω
- Universal housing for simple panel integration
- Ideal for E-Stops, guard switches, and light-curtain applications
- Guardmaster MSR138.1DP 24V AC/DC single-function safety relay with 4 N.O. outputs (instant and delayed).
Designed for 24V AC/DC operation with a low 4W power consumption, the 440R-M23084 offers infinite input simultaneity, 135-ohm allowable input resistance, and fast switching response of 0.15–3 ms. Its slim housing and standardized wiring layout simplify integration into existing Guardmaster safety architectures.