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Allen Bradley Guardmaster Safety Relays 440J-N21TNPM-NP

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440J-N21TNPM-NP

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The 440J-N21TNPM-NP is a Guardmaster safety enabling switch from Allen Bradley. This 3-position enabling switch features a total of two normally closed contacts and one auxiliary contact, along with functions for jogging or resetting.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 440J-N21TNPM-NP

ManufacturerAllen Bradley
Product TypeGuardmaster Safety Enabling Switch
Product LineGuardmaster Safety Relays
Part Number440J-N21TNPM-NP
Weight5.00 lbs (2.27 kg)
Switch Type3-Position Enabling Switch
Number of Contact Configuration2 N.C. (Normally Closed)
Number of Auxiliary Monitoring1 N.C. Auxiliary contact
Integrated Jog ButtonJog or 'Reset' functions
Reset TypeManual Reset
Number of Monitoring Contacts2 N.O. monitoring contacts
Operating Voltage AC250 VAC
Operating Voltage DC30 VDC
Thermal Current3.0 A
Minimum Operating Temperature-10°C
Maximum Operating Temperature60°C
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The part number 440J-N21TNPM-NP represents a Guardmaster safety enabling switch manufactured by Allen Bradley. This device is categorized as a 3-position enabling switch, which is critical in various automated environments. Designed for reliable operation, it includes two normally closed (N.C.) contact configurations and one N.C. auxiliary contact for additional functionality.

An integrated jog button allows users to engage jog or reset operations, enhancing control during setup or troubleshooting. Manual reset capability provides a straightforward and effective way to ensure safety protocols are followed before re-engaging with machinery. Additionally, the switch features two normally open (N.O.) monitoring contacts, which contribute to its operational feedback capabilities.

The 440J-N21TNPM-NP operates efficiently under alternating current of up to 250 VAC and direct current of 30 VDC. It can handle a thermal current rating of 3.0 A, further reinforcing its suitability for robust applications. This Guardmaster switch is designed to function across a temperature spectrum from a minimum of -10°C to a maximum of 60°C, ensuring it can be deployed in a variety of industrial conditions.