Allen Bradley
Allen Bradley 440G-TZS21UPRH Guardmaster Safety Switch
Allen Bradley 440G-TZS21UPRH Guardmaster Tongue Actuated Safety Switch.
● In Stock
12-Mo Warranty
Same-Day Dispatch
Ships Worldwide
🎖 Veteran-Owned
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Response within 1 business hour
12-month warranty
All units tested
Same-day dispatch
Order by 2pm CST
Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
Tongue actuated for reliable interlocking
Positive break contacts (2 N/O, 1 N/C)
Robust IP67 rated housing
Designed for machine guarding
Durable construction
Meets safety standards
Product description
The Allen Bradley 440G-TZS21UPRH is a Guardmaster safety switch with tongue actuation, designed for hazardous machine guarding applications. It provides a robust mechanical interlock to ensure guards are closed before machinery can operate.
This safety switch is ideal for use in industries such as automotive, material handling, and packaging, where reliable safety interlocks are essential to prevent accidents. It is commonly installed on machine doors, gates, and access panels.
Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Allen Bradley 440G-TZS21UPRH. Secure your safety components from a trusted provider.
Technical specifications
| Actuation Type | Tongue |
| Type | Safety Switch |
| Series | Guardmaster |
| Contacts | 2 N/O, 1 N/C |
| Voltage | 230V AC |
| IP Rating | IP67 |
| Mounting | Surface Mount |
Common applications
Machine Guarding
Safety Interlocks
Gate Monitoring
Access Panel Control
Industrial Safety
Automotive Manufacturing
Packaging Lines
Compatible systems
Compatible with safety relays and controllers that accept standard N/O and N/C contacts
Also known as
Guardmaster Safety Switch, AB 440G-TZS21UPRH, 440G TZ S21UPRH, Tongue Interlock Switch
Replaces / compatible with
The Guardmaster 440G series provides reliable mechanical interlocking solutions for machine safety.
Technical note
Expert tip
The 440G-TZS21UPRH safety switch should be used in conjunction with a safety relay or safety PLC to ensure complete safety system functionality.What happens next?
1
Email confirmation
Immediate receipt acknowledgment sent to you
2
Account manager assigned
Confirms your part's spec and condition
3
Your quote delivered
Tailored to your specific requirements
Frequently asked questions
What type of actuation does the Allen Bradley 440G-TZS21UPRH safety switch use?
The Allen Bradley 440G-TZS21UPRH Guardmaster safety switch uses tongue actuation. This requires a specific actuator (tongue) to be inserted into the switch to allow for contact closure and machine operation.