Allen Bradley Guardmaster 440N Series RFID Non-Contact Safety Switch, 24V dc, Plastic Housing
- RS Stock No.:
- 751-0945
- Mfr. Part No.:
- 440N-Z21U16A
- Brand:
- Allen Bradley Guardmaster
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Subtotal (1 unit)*
£154.44
(exc. VAT)
£185.33
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- Plus 2 unit(s) shipping from 27 October 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £154.44 |
*price indicative
- RS Stock No.:
- 751-0945
- Mfr. Part No.:
- 440N-Z21U16A
- Brand:
- Allen Bradley Guardmaster
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Allen Bradley Guardmaster | |
| Supply Voltage | 24V dc | |
| Housing Material | Plastic | |
| Actuator Type | Unique Coded | |
| Safety Category | 4 | |
| Sensor Principle | RFID | |
| Actuator Included | Yes | |
| Series | 440N | |
| Range | Sensaguard | |
| Switching Distance | 15 mm | |
| IP Rating | IP69K | |
| Width | (Dia) 18mm | |
| Length | 67.06mm | |
Select all | ||
|---|---|---|
Brand Allen Bradley Guardmaster | ||
Supply Voltage 24V dc | ||
Housing Material Plastic | ||
Actuator Type Unique Coded | ||
Safety Category 4 | ||
Sensor Principle RFID | ||
Actuator Included Yes | ||
Series 440N | ||
Range Sensaguard | ||
Switching Distance 15 mm | ||
IP Rating IP69K | ||
Width (Dia) 18mm | ||
Length 67.06mm | ||
RoHS Status: Exempt
- COO (Country of Origin):
- DM
Allen Bradley Guardmaster Sensaguard 440N RFID Cylindrical Non-Contact Safety Switch
Optimise your guard door and improve machine safety with the Sensaguard 440N RFID Cylindrical Non-Contact Safety Switches by Allen Bradley Guardmaster. These switches ensure a superior level of security and protection to reduce risk of injury, damage to equipment, and overall downtime.
The Sensaguard safety switches feature advanced latest generation Radio Frequency Identification technology for coding and inductive technology for sensing, which makes them highly reliable and tamper-resistant. These switches are designed to be installed on machine guard doors, offer tolerance to door misalignment, and have a large sensing range. These versatile switches can meet a broad range of industrial applications.
These safety interlock switches can be connected standard safety relays, SmartGuards and safety I/O blocks to suit your needs. They also maintain PLe, SIL 3, Cat 4 rating even with multiple units connected in series. They have a high IP69K rating, which ensures that they can withstand powerful jets of water and are fully protected against dust ingress. The Sensaguard switches are a cost-effective solution and are perfectly suited for use with sliding, hinged, and lift-off machine guard doors.
Features and Benefits:
• 3 x PNP outputs (including 1 auxiliary)
• Excellent IP69K environmental protection rating
• Highly tamper-proof due to secure RFID sensing
• No dedicated controller is required
• LED indication for door status and fast troubleshooting
• Can be connected in series with other safety components (light curtain, E-stops, key interlock switches)
• Superior reliability due to short-circuit and over-voltage protection
• Uses the standard proximity brackets
• Multiple sensing directions offers greater flexibility
• Excellent IP69K environmental protection rating
• Highly tamper-proof due to secure RFID sensing
• No dedicated controller is required
• LED indication for door status and fast troubleshooting
• Can be connected in series with other safety components (light curtain, E-stops, key interlock switches)
• Superior reliability due to short-circuit and over-voltage protection
• Uses the standard proximity brackets
• Multiple sensing directions offers greater flexibility
Note: Supplied with actuator. Stainless steel version is suitable for use in harsh environments.
Standards: IEC60947-5-3, IEC 61508, EN954