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Allen Bradley Guardmaster Safety Relays 440T-MSSSE22JA

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440T-MSSSE22JA

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The 440T-MSSSE22JA from Allen Bradley is a trapped key interlock used for safety applications. With a rated insulation voltage of 500 V and a thermal current rating of 10 A, it ensures reliability under operational stress.

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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-MSSSE22JA

ManufacturerAllen Bradley
Product TypeTrapped Key Interlock
Product LineGuardmaster Safety Relays
Part Number440T-MSSSE22JA
UPC885630167718
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
StandardCCC, KC
Key CodeJA
Humidity Tolerance95% RH (non-condensing)
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The 440T-MSSSE22JA model is classified as a trapped key interlock, developed by Allen Bradley as part of their Guardmaster Safety Relays series. It offers a rated insulation voltage of 500 Volts which indicates its capacity to handle electrical demands effectively. This interlock has a thermal current rating of 10 Amperes, showcasing its suitability for continuous operation in various environments.

With a focus on safety, it operates under pollution degree 3 conditions and guarantees reliable performance with a minimum switching current of 5 mA at 5 Volts DC. It features one normally-open auxiliary contact, which aids in effective circuit management. The maximum load capacity for switching stands at 500 Volt-Amperes, presenting flexible options for integration into existing systems.

The unit is designed for positive opening action with an actuator travel distance of 5 millimeters, ensuring precise function. The interlock can be actuated up to a frequency of 2 Hertz, with a maximum actuation speed of 1 meter per second. Additionally, it adheres to standards set by CCC and KC, showcasing its compliance for safety in industrial applications. It is also rated for high humidity environments, tolerating conditions up to 95% relative humidity (non-condensing). The key code assigned to this interlock is JA, providing added specificity for applications needing key management.