Allen Bradley 440S-S560010 GuardMaster Safety Limit Switches
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||

Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Allen-Bradley |
| Manufacturer | Rockwell Automation |
| Product Series | Guardmaster 440S |
| Product Model | 440S-S560010 |
| Product Name | Guardmaster Sigma Snaplock Safety Limit Switch |
| Product Type | Mechanical Safety Limit Switch |
| Switch Family | Sigma Snaplock Series 600 |
| Switch Configuration | Standard switch |
| Contact Arrangement | 1 NO + 1 NC |
| Contact Type | Snap-action contacts |
| Switching Function | Quick-break switching |
| Actuator Type | Roller lever |
| Rated Continuous Current | 10 A |
| Inrush Current | 20 A |
| Operating Voltage | Depends on AC/DC load and switching conditions; refer to the electrical rating table |
| Electrical Connection | Metric cable entry |
| Housing Material | Metal |
| Housing Finish | Powder-coated |
| Protection Rating | IP66 |
| Safety Auxiliary Contacts | 0 |
| Mounting | Mechanical mounting with supplied backplate arrangement |
| Application | Safety interlocking, machine guarding and position monitoring |
| Overall Dimensions | 114 × 83 × 76 mm |
| Weight | 1.06 kg |
| Product Status | Discontinued according to distributor listings |
FAQ
1. What is the main function of the Allen-Bradley 440S-S560010 Guardmaster limit switch?
The 440S-S560010 is a mechanical limit switch from the Guardmaster Sigma Snaplock Series 600. It detects the position or movement of a machine component through mechanical actuation and changes its electrical contact state. It is commonly used in machine guarding, safety interlocking and position-monitoring applications.
2. What does the 1 NO + 1 NC contact configuration mean?
The 1 NO + 1 NC configuration means the switch provides one normally open contact and one normally closed contact. When the actuator changes position, the contacts change state according to the switch’s operating mechanism. This arrangement allows the switch to provide complementary signals to a control or monitoring circuit. The actual safety circuit must be designed and validated for the required machine safety level.
3. How does the Snaplock switching mechanism work?
The Snaplock mechanism uses a quick-action contact arrangement. When the roller lever is mechanically actuated, the internal mechanism changes the contact state rapidly rather than relying solely on the speed of the external movement. This helps provide consistent switching behavior in applications involving repeated mechanical operation.
4. What electrical loads can the 440S-S560010 handle?
The switch has a listed continuous current rating of 10 A, with an inrush rating of 20 A in the applicable electrical specifications. Its allowable switching capacity depends on the supply voltage, AC or DC load type, and whether the load is inductive or non-inductive. For motor, solenoid or other inductive loads, check the manufacturer’s electrical rating table before connecting the switch.
5. What is the purpose of the roller lever actuator?
The roller lever allows a moving machine component or mechanical cam to operate the switch through physical contact. The roller helps reduce friction between the actuator and the moving target, making it suitable for repeated position detection. During installation, ensure that the target contacts the roller correctly and does not apply excessive force or travel.
6. What does the IP66 protection rating mean for this limit switch?
The IP66 rating indicates that the enclosure provides complete protection against dust ingress and protection against powerful water jets. This makes the switch suitable for many demanding industrial environments. However, the cable entry and cable gland must be installed and sealed correctly; otherwise, the overall protection of the assembly may be reduced.
7. What should be checked if the 440S-S560010 fails to change contact state?
First, inspect the roller lever for mechanical obstruction, excessive wear or incorrect alignment. Then isolate the circuit and use a suitable meter to check continuity across the NO and NC contacts while operating the actuator manually. Also inspect the cable entry, terminal connections and external wiring for looseness or damage. Replace the switch if the contacts remain unreliable after these checks.
8. Can the 440S-S560010 be replaced with another Guardmaster limit switch?
Replacement should not be based on the Guardmaster series name alone. The new switch must match the original contact arrangement, actuator style, mounting dimensions, electrical ratings and environmental protection requirements. Since the 440S-S560010 is reported as discontinued by distributors, verify the proposed replacement’s technical documentation and validate the complete machine safety circuit before returning the equipment to service.
Allen Bradley 440S-S560010 GuardMaster Safety Limit Switches is in stock. Please contact us for a quick quote and competitive pricing.
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Company Introduction
Xiamen Shengruite Trading Co., Ltd. is a company specializing in the supply of industrial PLC spare parts.
We provide high-quality PLC spare parts to customers in the global manufacturing, energy and power, chemical and other fields.
Since its establishment in 2011, after 13 years of rapid development, the cumulative global shipments have reached 223,650 pieces, with an annual output value of US$50 million.
Successfully served more than 500 customers in more than 100 countries and regions including Saudi Arabia, UAE, the United States, Europe, Africa, and Southeast Asia
Our Mission
Provide customers with the best quality PLC spare parts and the fastest delivery service to ensure that their industrial automation systems are always in the best operating condition.
We provide a 1-year warranty service, and we support returns and exchanges for any issues to ensure your rights and interests are fully protected.
We can provide detailed product images upon request, and our team can arrange warehouse photos for confirmation to ensure you have all the information you need before making a purchase.
Shipping times vary depending on your location. With the support of our 16 global warehouses, we strive to deliver orders as quickly as possible. Contact us to get an estimated delivery time for your specific location.
The minimum order quantity (MOQ) is typically one unit. However, for larger orders, please contact us for potential discounts and pricing details.
Yes, we offer competitive pricing for bulk purchases. Please reach out to our sales team with the specifics of your order to receive a custom quote.
We accept various payment methods for wholesale orders, including bank transfers (T/T), letters of credit, and other options upon agreement. For large transactions, please contact us directly for payment terms.
Yes, we offer flexible ordering options for both small and large quantities. Whether youre looking for a single unit or a large batch, we can accommodate your needs.
We occasionally offer promotional discounts for new wholesale customers. Contact us to learn more about any current offers available for first-time buyers.
If you are unsure of compatibility with your existing setup please provide your system details and our support team can verify compatibility prior to purchase.
Returns are accepted within 30 days if the product is unused, unopened, and in its original packaging. Please note that return shipping and associated costs are the buyer\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\’s responsibility.
Yes, we offer technical support for the installation and integration of our products. Our team can assist with setup, configuration, and troubleshooting to ensure a smooth installation.








