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Allen Bradley Guardmaster Safety Relays 440K-B04026

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440K-B04026

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The Allen Bradley 440K-B04026 functions as a manually operated bolt interlock switch designed for safety-critical applications. It incorporates robust contact configurations and achieves high durability ratings across its intended operational scope.

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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 440K-B04026

ManufacturerAllen Bradley
Product TypeManually Operated Bolt Interlock Switch
Product LineGuardmaster Safety Relays
Part Number440K-B04026
Weight5.00 lbs (2.27 kg)
UPC611320168679
Rated Thermal Current10 Amperes
Contact Configuration2 Normally Closed (NC) safety contacts and 1 Normally Open (NO) auxiliary contact
Ingress Protection RatingIP66
Mechanical Life SpanUp to 1,000,000 operations
Locking Shaft MaterialStainless steel
Rated Impulse Withstand Voltage2,500 Volts
Contact MechanismBreak before make
Housing MaterialHeavy-duty red painted zinc-based die-cast alloy
Rated Insulation Voltage500 Volts AC
Shaft Movement To Achieve Contact Operation0.078 inches (22 millimeters)
Electrical EnduranceUp to 1,000,000 operations
Connection TypeM20 conduit
Maximum Switched Load500 volt-amperes
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The 440K-B04026 from Allen Bradley is engineered as a manually operated bolt interlock switch, ideal for safety applications. It is rated for a thermal current of 10 Amperes. This switch includes a combination of two normally closed (NC) safety contacts and one normally open (NO) auxiliary contact to facilitate various control schemes.

Designed for extensive usage, the switch offers an impressive mechanical lifespan of up to one million operations. It also has an electrical endurance equivalent to the same cycle count, providing significant value in frequent operation scenarios. The switch's locking shaft is crafted from stainless steel, contributing to the overall durability.

Enclosed in a robust housing made of heavy-duty red painted zinc-based die-cast alloy, the switch is well-protected from environmental factors, achieving an ingress protection rating of IP66. Its rated insulation voltage stands at 500 Volts AC, ensuring it operates safely under load.

For added durability, the switch can withstand impulse voltages of up to 2,500 Volts, enhancing its reliability in demanding conditions. The mechanism features a break-before-make configuration, which positively prevents electrical faults during operation. Operating the switch requires a movement of the shaft by 0.078 inches (22 millimeters). The connection type for this unit is an M20 conduit, and it has a maximum switched load capacity of 500 volt-amperes. The 440K-B04026 is a solid choice for ensuring safety in industrial settings.