- Bad communication ports
- Broken selector/key switches
- Dead batteries/Bad Battery connections
- Solid or Blinking RED OK Status Light
- Solid or Blinking RED RUN Status Light
- Solid or Blinking RED Fault Status Light
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Allen Bradley Guardmaster Safety Relays Repair
We offer extensive repairs for your Guardmaster Safety Relays. We keep many spare parts in stock so that we can repair your Guardmaster Safety Relays as efficiently and effectively as possible. Our standard repair lead time is 3-5 days. However, we can often repair your unit much faster if necessary. We can repair most issues and if for some reason we cannot repair your unit we will do our best to offer a refurbished unit at the repair cost, so that you can get a working unit back as soon as possible!
- 2 Year DO Supply Warranty
- Fast repairs at low costs
- No surprises or up-charges for difficult repairs
- Standard lead time of 2-4 weeks
- Extensive quality control and testing
Get a repair quote
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.
Learn more
Hardware issues & error codes we repair
We repair all of the following hardware issues and error codes with your Guardmaster Safety Relays parts.
- Bad analog inputs or ouptus
- Bad digital input or outputs
- Bad relays (stuck on/off)
- Incorrect voltages on inputs or outputs
- Incorrect current on inputs or outputs
- DF1, DH-485, DH+, Profibus, Remote I/ (RIO) failures and more!
- Intermittent communication
- Solid RED/Blinkging RED communication lights
- Devicenet, Ethernet, ControlNet, RS232 ports.
- Missing CJC Jumpers
- Incorrect readings
- Failed inputs
- Dead power supplies
- Incorrect voltage
- Broken Plastic
- Poor Connections
- Bad Slots
Browse Guardmaster Safety Relays Repairs
Browse our catalog of repairable Guardmaster Safety Relays parts to get a quote.
440K-C21090
This interlock switch presents a 3 N.C. contact configuration without auxiliary contacts. Rated at IP67, it offers excellent protection against dust and water ingress. The connection type is an M12 mi
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440K-H11160
This tongue interlock switch operates with a thermal current capacity of 10 amps and includes two normally-closed safety contacts. It comes equipped with a 6-meter connection cable and supports flamep
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440K-MT55102
This interlock switch has a Break-Before-Make (BBM) contact action and is rated IP67 for protection against dust and water. It functions efficiently in temperature ranges between 0 °C and 40 °C and ca
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440K-T11146
This tongue switch features a rated thermal current of 10A and offers one normally open (NO) auxiliary contact. The product is designed with an actuator made of stainless steel and can operate within
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440K-T11207
This device utilizes break before make contact functionality and includes two normally-closed safety contacts. It has two entry slots for actuator options, offering four different actuator entry confi
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440K-T11267
Designed for robust safety solutions, the 440K-T11267 tongue interlock switch has a plastic enclosure and operates effectively with standard actuators. It features a connection type compatible with 1/
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440K-T11273
This model supports thermal currents of up to 10 Amps and operates at a maximum actuation frequency of 2 cycles per second. The 440K-T11273 is classified as a standard model with M20 conduit compatibi
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440K-T11368
This device is designed with a plastic housing and a GD2 style metal head. The 440K-T11368 contains a total of 6 pins for connection. It is available in a red color type, indicating its safety functio
Available
440L-R4D1200-N
This safety light curtain receiver has a resolution with a beam spacing of 30 mm, ensuring precise area coverage. With an impressive operating range from 0.1 to 8 m, it combines fast response times of
In Stock Ships Today
440L-R4JL440YD
This receiver boasts a maximum protective height of 1440 mm and supports a 14 mm resolution. It is rated IP65 for dust and water protection. Designed to operate efficiently in ambient temperatures fro
In Stock Ships Today
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