steve
Got hold of Sime for a Carrier card for…
Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
3 weeks ago
ESR3-NO-31
Moeller ESR3-NO-31 available at EU Automation. Get in touch today for a quick price.
Based on over 4900 reviews
Full 12-month warranty
Available for dispatch immediately
We deliver worldwide
What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
All orders are subject to product availability. See our T&Cs.
Ask our team
What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Moeller ESR3-NO-31 is a robust and reliable safety relay designed for emergency stop and safety gate applications. Conforming to DIN EN 60204-1 and EN 954-1 standards, this device ensures high-level safety with its dual-channel operation and self-monitoring capabilities. It features three normally open (NO) safety contacts and one normally closed (NC) control contact, providing comprehensive control and monitoring of safety circuits. The ESR3-NO-31 operates with a rated voltage of AC 230V and is equipped with a green LED indicator for power supply status, as well as additional LEDs for monitoring the operational state of the internal relays. With a compact design and easy installation on a DIN rail, this safety relay is an ideal choice for enhancing the safety of machinery and equipment in industrial environments.
| Specification | Description |
|---|---|
| Part Number | ESR3-NO-31 |
| Alternative Part Number | ESR3NO31 |
| Manufacturer | Moeller |
| Rated Voltage | AC 230 V |
| Rated Power | 2.5 W / 3.2 VA |
| Rated Frequency | 50 Hz to 60 Hz |
| Operating Range | 0.8 to 1.1 x UN |
| Control Circuit | Galvanic isolation between supply circuit and control circuit |
| Output Voltage | DC 24 V for inputs Y12, Y13, Y14, Y31 |
| Response Time | 80 ms with reset button monitoring, 500 ms without reset button monitoring |
| Release Time | 50 ms in case of emergency stop, 100 ms in case of power failure |
| Contacts | 3 NO safety contacts, 1 NC control contact |
| Switching Voltage | AC/DC 230 V |
| Max Current | 6 A per safety contact, 18 A total for all contacts |
| Protection Degree | Housing/Terminals: IP 40 / IP 20 |
| Ambient Temperature | -25°C to +55°C (operating), -25°C to +75°C (storage) |
| Weight | 0.36 kg |
| Connection Cross Sections | 2x0.75 mm² to 2.5 mm² single-wired or 2x0.5 mm² to 1.5 mm² fine-wired with connector sleeve |
| Description | The Moeller ESR3-NO-31 is a dual-channel safety switching device designed for emergency stop applications. It features self-monitoring on each ON-OFF cycle and positively driven relays, ensuring reliable operation. The device is suitable for use in safety circuits, providing three enabling current paths and one control contact. It is equipped with LED indicators for power supply and relay status, and it can be operated with or without reset monitoring. The ESR3-NO-31 is ideal for safeguarding machinery and personnel by monitoring control units in emergency stop devices and protective guards. |
What are the main applications of this part?
The Moeller ESR3-NO-31 is primarily used for emergency stop and safety gate applications, ensuring the safety of machinery by monitoring control units and providing emergency stop functions.
What is the rated voltage and power consumption of this part?
The rated voltage for the Moeller ESR3-NO-31 is AC 230V, with a power consumption of 2.5 W / 3.2 VA.
What is the operating temperature range for this part?
The Moeller ESR3-NO-31 operates within a temperature range of -25°C to +55°C, making it suitable for various industrial environments.
How does the emergency stop function work?
The emergency stop function of the Moeller ESR3-NO-31 is activated by interrupting the current to the K2 and K3 relays, opening the enabling current paths and closing the control contact.
What type of contacts does this part have?
The Moeller ESR3-NO-31 features 3 normally open (NO) safety contacts and 1 normally closed (NC) control contact.
What is the maximum current rating for the contacts?
The maximum current rating for each safety contact of the Moeller ESR3-NO-31 is 6A, with a total maximum current for all contacts of 18A.
Can this part be used with both single and dual-channel emergency stop circuits?
Yes, the Moeller ESR3-NO-31 can be configured for use with both single and dual-channel emergency stop circuits, providing flexibility in safety applications.
What is the response time for the relays in this part?
The response time for the relays K2 and K3 in the Moeller ESR3-NO-31 is 80 ms with reset monitoring and 500 ms without reset monitoring.
What is the protection degree of the housing and terminals?
The housing of the Moeller ESR3-NO-31 has a protection degree of IP40, while the terminals have a protection degree of IP20.
What is the weight of this part?
The Moeller ESR3-NO-31 weighs approximately 0.36 kg, making it lightweight and easy to handle during installation.
- Emergency stop applications in industrial machinery
- Safety gate monitoring and control
- Integration into safety circuits for machinery protection
- Use in dual-channel safety systems for enhanced reliability
- Monitoring of control units in emergency stop devices
- Ensuring safe operation of automated systems
- Implementation in safety-related equipment on machines
- Protection against accidental activation in industrial settings
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Delivery
- Logistic partners UPS, FedEx and DHL
- International delivery available
- Premium nine hour delivery service available to anywhere in Europe
- Same day dispatch from group stock
Warranty
All parts new or reconditioned are covered by EU Automation 12 month warranty
Returns
No hassle returns policy
Dedicated customer support team
Payment
Trade CreditWe understand that credit is a necessary part of business and offer credit agreements on request, subject to status.
Payment optionsWe accept Bank transfers and the following methods of payment:
All transactions are handled securely by HSBC and HSBC Merchant Services. For more information, please visit our dedicated payments page.
Services
Sourcing your part
Global supplier of quality automation and control components
Service Exchange
Dispose of your old unit by exchanging it for a working part.
Repair
A comprehensive repair service for faulty equipment.
Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
2 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
2 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
2 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
3 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
4 months ago
Be a Factory Hero.
Get parts fast.
You don’t need tights and a cape to be a hero.
Get parts fast and feel like a legend, just like Jeff.