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Guardmaster Safety Relays

Allen Bradley Guardmaster Safety Relays

Guardmaster Safety Relays from Allen Bradley are industrial safety system components. They monitor safety devices like emergency stop buttons and light curtains to detect potential hazards. When a safety device activates, the connected relays swiftly initiate a safety response, such as stopping machinery or activating alarms, to prevent accidents and protect users and equipment. The Guardmaster Safety Relays series includes general-purpose relays and special-purpose relays. Each Guardmaster Safety Relay comes with 4 removable terminal blocks.

Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Browse Guardmaster Safety Relays

Browse available units in our catalog of Guardmaster Safety Relays.

440R-N23126

This safety relay features three normally open (N.O.) safety outputs along with one normally closed (N.C.) auxiliary output. The input contacts consist of two N.C. options and support a light curtain.

In Stock Ships Today
5.0

MSR138.1DP

This safety relay is designed with a maximum input resistance of 135 ohms and operates effectively within an enclosure rated IP40. Its contact material is silver tin oxide, and it functions at frequen

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5.0

440K-A11095

This actuator is a part of the 440 series and is compatible with interlock switch accessories. It allows for effective mounting options. It can thrive in various conditions and is designed to function

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4.8

GD2-FRS21DC

This safety switch features an IP68 enclosure rating, providing excellent protection against dust and water. It has a temperature operational range of -25 to 100 degrees Celsius, ensuring reliability

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5.0

440N-Z21S16A

This non-contact switch has a sensing distance of 15 mm and operates at 24 VDC. Designed from polycarbonate material, it offers protection against short circuits, overloads, reverse polarity, and over

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5.0

440C-ENET

This module operates as an Ethernet plug-in module with multiple connectivity options, including USB and RS-232 interfaces. It is designed to mount on a DIN rail and requires a 24 VDC power supply. Th

Available
5.0

440R-N23135

This relay operates with a rated voltage of 24 V for both AC and DC applications. The device includes three immediate safety outputs (normally open) and one auxiliary output (normally closed). It feat

In Stock Ships Today
5.0

440G-TZS21UPRH

This interlock switch is designed for use with 24 V AC/DC solenoid systems and offers a robust holding force of 2000 N (450 lbs). It includes two normally closed safety contacts and one normally open

Available
5.0

440R-W23218

This input module is equipped with two PNP solid-state auxiliary outputs for effective interfacing. It supports removable terminal blocks and is designed for DIN-rail mounting. The device has a minima

In Stock Ships Today
4.5

440N-G02094

This non-contact safety switch is equipped with a single NC safety contact and one NO auxiliary contact. It features a rectangular housing made of plastic, rated IP67 for dust and water resistance, an

Available
5.0
Showing 11-20 of 138 results