EATON ESR5 Series Safety Relays
Eaton ESR5 Series safety relays provide reliable monitoring of emergency-stop buttons, light curtains, safety doors and controls. They provide safety functions like emergency shutdown, monitoring of movable guards, monitoring of exposed hazardous areas, safe operation with two-hand control, del...ayed & instantaneous contact expansions and shutdown with off delay.Read more
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E| Style | Model | Product Width | Product Height | Body Height | Body Depth | Body Width | Input Voltage | Voltage | No. Of Terminals | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | ESR5-NO-31-24VAC-DC | - | - | 3.9" | 4.51" | 0.88" | 24V AC/DC | - | 24 | - | RFQ
|
| B | ESR5-NO-31-AC-DC | - | - | - | - | - | - | - | - | €685.14 | |
| A | ESR5-NO-21-24VAC-DC | - | - | 3.9" | 4.51" | 0.88" | 24V AC/DC | - | 24 | - | RFQ
|
| C | ESR5-NV3-30 | 4 1/2" | 2" | 2" | 5" | 4.5" | 24V DC | 24V DC | 16 | €821.39 | |
| D | ESR5-VE3-42 | 4 1/2" | 2" | - | - | - | - | 24V DC | - | €1,142.46 | |
| A | ESR5-NE-51-24VAC-DC | 4 1/2" | 2" | - | - | - | - | 24V AC/DC | - | €894.44 | |
| E | ESR5-NZ-21-24VAC-DC | 4 1/2" | 2" | 2" | 5" | 4.5" | 24V AC/DC | 24V AC/DC | 16 | €709.40 | |
| A | ESR5-NO-41-24VAC-DC | 4 1/2" | 2" | 2" | 5" | 4.5" | 24V AC/DC | - | 24 | - | RFQ
|
| A | ESR5-NO-31-230VAC | 5" | 2 1/2" | - | - | - | - | 230V AC | - | - | RFQ
|
Working Mechanism
- The safety relays' internal logic monitors the safety circuits and activates the enabling-current paths in the absence of any faults.
- The enabling-current paths are disabled if the safety device has been engaged or if there is a fault.
Standards and Approvals
- CE
- UL
- cUL
- CSA
- IEC
Frequently Asked Questions
What is the difference between an electromechanical safety relay and a solid-state safety relay?
An electromechanical safety relay uses mechanical components to perform its safety functions, while a solid-state safety relay uses electronic components.
What is the difference between a safety relay and a general relay?
A safety relay specifically provides safety functions in response to safety inputs, while a general relay is designed for general-purpose switching applications.
When should I use a safety relay?
Use a safety relay when the load cannot be activated directly by a safety controller that is not able to handle the power needed to switch the load or when more contacts are needed to be driven by the same control signal.
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