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Allen Bradley Guardmaster Safety Relays 440G-L07257

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440G-L07257

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The 440G-L07257 Guard Locking Switch is a safety relay module manufactured by Allen Bradley, specifically designed for use in safety applications. It operates at a rated voltage of 110 volts for both AC and DC supplies, ensuring versatility in different electrical 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 440G-L07257

ManufacturerAllen Bradley
Product TypeGuard Locking Switch
Product LineGuardmaster Safety Relays
Part Number440G-L07257
Weight2.75 lbs (1.25 kg)
Rated Voltage (AC)110 V AC
Rated Voltage (DC)110 V DC
Number of Solenoid Contacts N.C1 (N.C) Solenoid Contact
Number of Solenoid Contacts N.O2 (N.O) Solenoid Contacts
Number of Auxiliary Contacts (NO)1 Auxiliary Contact
Number of Safety Contacts (NC)2 Safety Contacts
Actuator TypeStandard
Module TypeStandard
Conduit Entry1/2 inch NPT Adapter
Min. Storage Temperature Rating0 °C
Max. Storage Temperature Rating40 °C
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The Allen Bradley 440G-L07257 is categorized as a guard locking switch in the Guardmaster Safety Relays series. Designed for reliable operation in safety applications, this device accepts a rated voltage of 110 V AC and 110 V DC, making it versatile for various installation situations. It provides a total of three solenoid contacts, consisting of one normally closed (N.C) contact and two normally open (N.O) contacts. Additionally, the module includes two safety contacts (N.C) and one auxiliary contact (N.O). This design ensures the product can meet safety compliance requirements effectively.

The actuator type is a standard design, contributing to its ease of use in typical applications. In terms of installation, the relay is equipped with a conduit entry adapter sized at 1/2 inch NPT, facilitating straightforward connections. The operating temperature range for the 440G-L07257 varies from a minimum storage temperature of 0 °C to a maximum of 40 °C, allowing for flexibility in different operating conditions. This combination of features makes the 440G-L07257 a robust choice for scenarios requiring effective machine safeguarding.