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Allen Bradley Guardmaster Safety Relays 440G-T27178

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440G-T27178

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The 440G-T27178 is a Guardlock switch manufactured by Allen Bradley, suitable for safety applications. It features one normally closed (NC) contact and one normally open (NO) contact, facilitating effective monitoring and control in various safety circuits.

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Ships from Raleigh, NC
2 Year DO Supply Warranty
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 440G-T27178

ManufacturerAllen Bradley
Product TypeGuardlock Switch
Product LineGuardmaster Safety Relays
Part Number440G-T27178
Weight0.88 lbs (0.40 kg)
UPC611320489521
MaterialPlastic
Actuator TypeGD2 Standard Actuator
NC Contacts1 NC Contact
NO Contact1 NO Contact
Solenoid Voltage Rating100 VAC/DC
Switch MechanismBreak Before Make
Minimum Operating Temperature-20°C
Maximum Operating Temperature55°C
Minimum Storage Temperature-25°C
Maximum Storage Temperature75°C
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The Allen Bradley 440G-T27178 Guardlock switch is engineered as a critical component in safety systems. With a construction of durable plastic, it ensures longevity in various operational settings. The switch operates with a GD2 standard actuator type, providing efficient engagement and disengagement.

This model incorporates one normally closed (NC) contact and one normally open (NO) contact for versatile interfacing options. Its solenoid voltage rating is designated at 100 VAC/DC, allowing compatibility with numerous electrical setups. The switch mechanism is designed as a break before make, which prevents simultaneous contact closure, thereby enhancing system safety.

Operating effectiveness of the 440G-T27178 exists within a temperature spectrum between -20°C and 55°C, making it suitable for diverse conditions. When not in operation, it can be stored within a temperature range of -25°C to 75°C, ensuring functionality remains intact even in less favorable environments.