Allen Bradley Guardmaster MSR127TP 440R‑N23130 Safety Relay 230VAC 3NO+1NC USED

Red Allen‑Bradley Guardmaster MSR127TP monitoring safety relay for single‑zone emergency stop or light curtain applications, powered at 230 V AC with three safety outputs and one auxiliary output, in good used condition. Designed as a Category 4, PL e, SIL 3 capable relay for Stop Category 0 safety functions with automatic or manual reset.

What’s included

• 1 x Allen‑Bradley Guardmaster MSR127TP safety relay, 230 V AC, Cat. No. 440R‑N23130, Series B.

• Built‑in DIN‑rail mounting foot and fixed terminals; no original packaging, key, or manuals.

Key specifications

• Brand: Allen‑Bradley / Rockwell Automation Guardmaster.

• Model: MSR127TP, Minotaur monitoring safety relay, 22.5 mm housing.

• Supply: 230 V AC, 50/60 Hz, approx. 2 W.

• Inputs: 1 NC or 2 NC safety channels or PNP light curtain (S11‑S12, S21‑S22) with monitored feedback loop via S34.

• Outputs: 3 N/O safety contacts (13‑14, 23‑24, 33‑34) and 1 N/C auxiliary contact (41‑42).

• Contact ratings: AC‑15 250 V 5 A; DC‑13 24 V 3 A; UL B300, R300.

• Safety data: up to PL e, Cat. 4 (EN ISO 13849‑1) and SIL CL 3 (IEC 62061/61508) when installed per Rockwell guidelines.

Condition notes

• Good used condition with only light handling marks on the red plastic housing; label and markings remain clean and fully legible.

• DIN‑rail clip and screw terminals are intact with typical screwdriver marks but no cracks or missing plastic.

• Removed from a working installation; not re‑tested under load by the seller, therefore sold as used, working when removed.

Applications

• Ideal for machinery emergency stop circuits, safety gate switches, or light curtains requiring a compact 230 V AC safety relay with 3 safety outputs and monitored reset.

• Direct drop‑in replacement wherever a 440R‑N23130 / MSR127TP relay is already installed in Rockwell Guardmaster systems