Allen-Bradley 440R-N23132-R Guardmaster MSR127TP Safety Relay, 24V AC/DC, Series B
Allen-Bradley 440R-N23132-R is an earlier production revision of the 440R-N23132 Guardmaster safety relay (type MSR127TP, Series B). This revision has been discontinued by the manufacturer and superseded by the current 440R-N23132 series, which it matches functionally and electrically.
Overview
The 440R-N23132-R provides three normally open safety outputs and one normally closed auxiliary output on a 24 V AC/DC control supply with monitored manual reset, accepting 1 N.C., 2 N.C. or light curtain input contacts through fixed screw terminals. Units supplied are original Allen-Bradley Series B production, marked Made in Germany.
Key Features
- Earlier revision of the MSR127TP safety relay family, Series B
- Discontinued by manufacturer — superseded by 440R-N23132 (current series)
- 24 V AC/DC rated control supply, 50/60 Hz, 2 W
- 3 N.O. immediate safety outputs + 1 N.C. auxiliary output
- Monitored manual reset; input contact 1 N.C., 2 N.C. or light curtain
- Contact rating AC15 250 V 5 A / DC13 24 V 3 A
- Fixed screw terminals, 22.5 mm wide, IP40
Technical Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Product Line | Guardmaster Safety Relays (440R) |
| Part Number / Catalog No. | 440R-N23132-R |
| Series | B |
| UPC | 662074607744 |
| Product Type | Single-Function Safety Relay (MSR127TP) |
| Rated Supply Voltage | 24 V AC/DC, 50/60 Hz, 2 W |
| Safety Outputs | 3 N.O. (immediate) |
| Auxiliary Outputs | 1 N.C. |
| Reset Type | Monitored Manual Reset |
| Input Contact | 1 N.C., 2 N.C. or Light Curtain |
| Contact Rating | AC15: 250 V 5 A / DC13: 24 V 3 A |
| Terminals | Fixed Screw |
| Enclosure Width | 22.5 mm; IP40 |
| Replacement | 440R-N23132 (current series) |
| Availability | Discontinued by Manufacturer |
| Dimensions | 13 x 13 x 4 cm (5.1 x 5.1 x 1.6 in) |
| Weight | 0.56 lbs (0.26 kg) |
Applications
Typical uses are drop-in replacements in existing Guardmaster installations wired for the original 440R-N23132-R: interlocked guard doors and light-curtain protected access points that require supervised manual reset. For new designs, specify the current 440R-N23132 series.
Why Buy from Us
This safety relay is available new in original factory packaging, fully tested and backed by a standard warranty of 1 year. We ship worldwide with careful protective packaging and fast dispatch. Quantity discounts and repair/exchange options are available on request.
Documents
| Resource | Title | Link |
|---|---|---|
| Publication | 440R-IN079 — MSR127T / MSR127TP / MSR127R / MSR127RP Safety Relays Installation Instructions (English) | 440r-in079_-en-p.pdf |
| Publication | 440R-TD001 — Guardmaster Safety Relays Technical Data (English) | 440r-td001_-en-p.pdf |
| Data Sheet | MSR127TP Safety Relay Specification Sheet | MSR127TP.PDF |
