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440G-T27121 Allen Bradley
by Allen-Bradley
Read verified buyer reviews ↓OverviewThe Allen-Bradley 440G-T27121 Guardmaster Safety Interlock Switch is an essential part for any industrial setting that prioritizes security and operational effectiveness. This interlock switch is designed to the highest standards, ensuring strong machine guarding by stopping entry to dangerous areas until machinery is safely turned off. Its superior design, with a durable stainless steel casing and an IP69K rating, guarantees dependable performance even in the most demanding conditions, including those needing frequent cleaning or exposure to extreme temperatures and corrosive substances. Running on a 24V DC supply, the 440G-T27121 easily integrates into modern control systems, providing an advanced solution for intricate safety needs. This model is exceptionally well-suited for industries where strict safety and cleanliness rules are crucial, such as food and beverage processing, pharmaceuticals, and heavy manufacturing. With its small size and high safety ratings (SIL 3 / PLe), this Guardmaster switch offers both peace of mind and improved productivity by reducing downtime and maximizing human protection.Key Features 24V DC Operation: Optimized for compatibility with modern industrial automation and control systems. Strong Stainless Steel Casing: Offers outstanding resistance to corrosion, chemicals, and physical impact, ensuring a long operational life. IP69K Rated Protection: Provides the highest level of protection against dust entry and high-pressure, high-temperature water jets, ideal for sanitary environments. Compact and Adaptable Design: Allows for simple integration into complex machinery and setups with limited space. Advanced Safety Compliance: Adheres to strict safety standards, including SIL 3 and PLe, for superior personnel and machine protection. Wide Operating Temperature Range: Works reliably from -25°C to 70°C, accommodating diverse industrial environments. M12 Quick-Disconnect Connector: Simplifies installation and maintenance, reducing setup time and potential wiring errors. Technical Specifications Model Number: 440G-T27121 Voltage Supply: 24V DC Material: Stainless Steel Ingress Protection: IP69K Safety Ratings: PLe (Performance Level e), SIL 3 (Safety Integrity Level 3) compliant Operating Temperature Range: -25°C to 70°C (-13°F to 158°F) Connector Type: M12 Quick-Disconnect Application Suitability: Guard locking for both hinged and sliding doors Applications Food & Beverage Processing: Vital for maintaining cleanliness and safety in washdown environments, adhering to strict sanitation rules. Pharmaceutical Manufacturing: Guarantees sterile conditions and operator safety in sensitive production zones. Heavy Industry & Manufacturing: Provides critical safeguarding for high-risk machinery, protecting personnel from severe industrial hazards. Packaging & Automated Systems: Improves operational safety and efficiency by preventing unauthorized access during automated processes. Chemical Processing Plants: Perfect for corrosive environments where standard materials would quickly deteriorate, thanks to its stainless steel makeup. Why Choose This Model? Uncompromising Safety: The 440G-T27121 delivers leading safety with SIL 3 and PLe ratings, ensuring maximum protection for your workforce and valuable equipment. Extreme Durability: Made from high-grade stainless steel and featuring an IP69K rating, this interlock switch is built to endure the harshest industrial conditions, offering exceptional longevity and reliability. Seamless Integration: Designed for modern industrial systems, its 24V DC operation and compact form factor enable easy and efficient integration into current or new control configurations. Cost-Effective Operation: By preventing accidents and reducing downtime through superior machine guarding, this switch contributes to significant operational savings and increased productivity. Brand Trust: As a product from a renowned manufacturer, it ensures dependability and supports your operational goals. Order NowEnhance your industrial safety protocols today. Contact us for pricing and availability of the 440G-T27121 Guardmaster Safety Interlock Switch.FAQWhat are the primary safety ratings of the 440G-T27121?This switch holds PLe (Performance Level e) and SIL 3 (Safety Integrity Level 3) compliance, representing top-tier safety performance.Can this safety switch be used in environments requiring frequent cleaning?Yes, with an IP69K rating, it offers exceptional protection against high-pressure, high-temperature water jets, making it perfect for washdown settings.What type of connector does the 440G-T27121 use for installation?It utilizes an M12 Quick-Disconnect connector, which streamlines both installation and maintenance procedures.What voltage supply is required for this interlock switch?The 440G-T27121 operates on a 24V DC power supply, ensuring compatibility with most modern industrial control systems.In which industries is this safety interlock particularly recommended?It is highly recommended for sectors such as food and beverage processing, pharmaceuticals, heavy industry, packaging systems, and chemical plants due to its robust design and high safety standards.
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440G-T27121 Allen Bradley
Overview
This is a genuine Allen-Bradley component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.
Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.
Key Features
- Genuine Allen-Bradley catalog part
- Tested before shipment
- Backed by PalmPartsSolution warranty
- Cross-reference and revision assistance available
- Compatible with the broader Allen-Bradley automation ecosystem
Compatibility
When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:
- Input/output voltage and current rating
- Communication protocol and network role
- Mounting form factor and footprint
- Operating temperature, humidity, and IP rating
- Required certifications (UL, CE, ATEX, marine, etc.)
Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.
Replacement Information
Three ways to source this part through PalmPartsSolution:
- Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
- Form-fit-function equivalent — alternate revision or build that drops in without code changes
- Engineered migration — current-generation Allen-Bradley platform with documented conversion notes
Contact our engineering team if you need help choosing between these tracks.
Technical Specifications
- Model Number: 440G-T27121
- Voltage Supply: 24V DC
- Material: Stainless Steel
- Ingress Protection: IP69K
- Safety Ratings: PLe (Performance Level e), SIL 3 (Safety Integrity Level 3) compliant
- Operating Temperature Range: -25°C to 70°C (-13°F to 158°F)
- Connector Type: M12 Quick-Disconnect
- Application Suitability: Guard locking for both hinged and sliding doors
Applications
- Food & Beverage Processing: Vital for maintaining cleanliness and safety in washdown environments, adhering to strict sanitation rules.
- Pharmaceutical Manufacturing: Guarantees sterile conditions and operator safety in sensitive production zones.
- Heavy Industry & Manufacturing: Provides critical safeguarding for high-risk machinery, protecting personnel from severe industrial hazards.
- Packaging & Automated Systems: Improves operational safety and efficiency by preventing unauthorized access during automated processes.
- Chemical Processing Plants: Perfect for corrosive environments where standard materials would quickly deteriorate, thanks to its stainless steel makeup.
Why Choose the 440G-T27121?
- Uncompromising Safety: The 440G-T27121 delivers leading safety with SIL 3 and PLe ratings, ensuring maximum protection for your workforce and valuable equipment.
- Extreme Durability: Made from high-grade stainless steel and featuring an IP69K rating, this interlock switch is built to endure the harshest industrial conditions, offering exceptional longevity and reliability.
- Seamless Integration: Designed for modern industrial systems, its 24V DC operation and compact form factor enable easy and efficient integration into current or new control configurations.
- Cost-Effective Operation: By preventing accidents and reducing downtime through superior machine guarding, this switch contributes to significant operational savings and increased productivity.
- Brand Trust: As a product from a renowned manufacturer, it ensures dependability and supports your operational goals.
Availability & Shipping
- ▸In stock: 440G-T27121 ready for immediate dispatch from our Florida warehouse.
- ▸Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
- ▸Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
- ▸Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
- ▸Buy with confidence: Every 440G-T27121 ships with a 1-Year PALM Parts warranty and a 30-day return window.
Frequently Asked Questions — Allen-Bradley
Machine down? We ship parts the same day.
New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.
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Independent Supplier Notice
PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.
Product Condition & Firmware
All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.