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Allen Bradley Guardmaster Safety Relays 440T-MSSSE22JB

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440T-MSSSE22JB

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The 440T-MSSSE22JB from Allen Bradley is a trapped key interlock designed for safety applications. It features robust operational ratings and includes one normally-open auxiliary contact, ensuring reliability in critical environments.

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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 440T-MSSSE22JB

ManufacturerAllen Bradley
Product TypeTrapped Key Interlock
Product LineGuardmaster Safety Relays
Part Number440T-MSSSE22JB
UPC885630177618
Rated Insulation Voltage500 V
Pollution Degree3
Minimum Switching Current5 mA @ 5 V DC
Thermal (Continuous) Current Rating10 A
Rated Impulse Withstand Voltage2,500 V
Auxiliary Contacts1 Normally-Open (NO)
Maximum Switching Current / Load500 VA
Actuator Travel for Positive Opening5 mm
Maximum Actuation Frequency2 Hz
Maximum Actuation Speed1 m/s
Maximum Holding Force2,000 N
Minimum Break Contact Force12 N
Maximum Releasable Load100 N
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The Allen Bradley 440T-MSSSE22JB functions as a trapped key interlock, built to enhance safety in various industrial settings. With a rated insulation voltage of 500 V, it is designed to withstand demanding conditions. The pollution degree rating is 3, indicating its suitability for environments subject to contaminants. On the switching front, the interlock handles a minimum current of 5 mA at 5 V DC and can maintain a continuous thermal current rating of 10 A for reliable operation under load. Additionally, it has a maximum switching capacity of 500 VA.

The device incorporates a rated impulse withstand voltage of 2,500 V, which provides resilience against transient voltage spikes. It includes one normally-open auxiliary contact to facilitate additional circuit connections. The actuator ensures definitive operation with a travel distance of 5 mm for positive opening, capable of achieving a maximum actuation speed of 1 m/s and an actuation frequency of up to 2 Hz. Furthermore, the interlock can generate a maximum holding force of 2,000 N, with a minimum break contact force of 12 N required to release the lock. The maximum load that can be managed by the interlock is 100 N, making it suitable for managing specific safety mechanisms in machinery and equipment.