Allen-Bradley 440R-H23178 safety relay Guardmaster MSR220P safety relay

Here is the parameter information of the Allen-Bradley 440R-H23178 safety relay:

General Information

Manufacturer: Allen-Bradley / Rockwell Automation

Model Number: 440R-H23178

Product Name: Guardmaster MSR220P safety relay

Life Cycle Status: Discontinued since 2017 - 12 - 31

Replacement Product: 440R-D22R2

Electrical Parameters

Power Supply: 24 VDC

Contact Rating: Not applicable for DC (DCL NA)

Output: There are no specific safety or auxiliary output values given. It is an input module, and the output is usually 0, 0, 0, 0 (possibly indicating no active output in a default state).

Power Consumption: 2W.

Mechanical Parameters

Enclosure Width: 17.5 mm

Mounting Type: Rail - mounting, suitable for 35 - mm DIN rail.

Function and Feature Parameters

Input Type: Supports diverse inputs including safety gates, emergency - stop buttons, safety mats, light curtains, and switches. It has two input circuits, which can be safety gate, emergency - stop or safety mat inputs. There are also specific input types like one SIPHA input, two 1 - NC inputs, two 1 - NO and 1 - NC inputs, two 2 - NC inputs, two 3 - NC inputs, and two safety mat inputs. NO (normally open) and LC (light curtain) inputs are not supported.

Diagnostic and Communication Functionality: Can deliver output and error status over a fieldbus network to an HMI. It has four diagnostic status indicators.

Reset Type: Not applicable / None (It is not clearly mentioned that it has a specific reset function, or it may be that the reset function is not a standard feature of this module).

Certification Parameters

CE Marked: For all applicable directives.

C - tick: Compliant.

C - UL US Listed: Compliant.

TÜV Certified: Compliant.

Safety Classification

It is rated as Category 4 per EN 954 - 1 (ISO 13849 - 1), suitable for applications requiring high - level safety protection.