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Allen Bradley Guardmaster Safety Relays 440G-T27252

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440G-T27252

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The Allen Bradley 440G-T27252 guard locking switch is designed for applications requiring secure safety mechanisms. This unit features a power-to-release locking mechanism and operates at 24 V AC/DC.

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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-T27252

ManufacturerAllen Bradley
Product TypeGuard Locking Switch
Product LineGuardmaster Safety Relays
Part Number440G-T27252
Weight1.00 lbs (0.45 kg)
UPC781180060090
Locking MechanismPower to Release
Solenoid Rated Voltage24 V AC/DC
Safety Contacts (Actuator)2 N.C. Contacts
Auxiliary Contacts (Actuator)1 N.O. Contacts
Solenoid Contacts1 N.O. and 1 N.C. Contacts
Contact Action TypeBreak Before Make (BBM)
Actuator TypeFully-Flex Tongue Actuator (Included)
Maximum Holding Force2000 N
Minimum Operating Temperature-25 °C
Maximum Operating Temperature60 °C
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The 440G-T27252 model from Allen Bradley's Guardmaster Safety Relays series functions as a guard locking switch. It ensures that machines operate safely by incorporating a power-to-release locking mechanism. When powered at 24 volts AC/DC, the switch's design includes safety contacts that consist of two normally closed (N.C.) contacts.

In addition to safety features, the device has an auxiliary contact, which is a normally open (N.O.) type, further enhancing its capabilities. The solenoid contacts feature one N.O. and one N.C. contact, which adhere to the break before make (BBM) action type. This specific action type is crucial in preventing accidental overlapping of contacts during operation.

Included with this locking switch is a fully-flex tongue actuator, designed to facilitate smooth engagement and disengagement. The 440G-T27252 is capable of delivering a holding force of up to 2000 newtons, making it suitable for demanding applications.

Performance-wise, the switch operates effectively in temperature conditions ranging from -25 °C to a maximum of 60 °C. This temperature range ensures reliability in various settings, capable of withstanding different operational environments. The combination of these features positions the 440G-T27252 as a dependable choice for enhancing safety measures in industrial applications.