440K-MT55029 | Allen-Bradley Tongue Interlock
Allen-Bradley · HMIs & Displays
Description The 440K-MT55029 is a tongue interlock switch from Allen-Bradley, designed for safety applications requiring position monitoring of guards and access doors. Part of the Guardmaster line, it features a compact, rugged housing and a mechanical tongue actuator, ensuring secure machine access control. Technical Specifications Condition New/Never Used Surplus Brand Allen-Bradley Category Safety Systems Part Number 440K-MT55029 Subcategory Safety Interlock Switch Actuator Fully-Flex BBM or MBB Break Before Make Conduit Entry/Connection Type 1/2in NPT Conduit Contacts (Safety/Auxiliary) 3 Normally Closed, 1 Normally Open Housing Type Metal Model Type Standard Product Family MT-GD2 Weight 1.20 lbs Information About 440K-MT55029 The 440K-MT55029 is a compact tongue interlock switch from Allen-Bradley’s Guardmaster Series, designed to enhance machine safety by ensuring access doors or guards remain closed before operation. With a mechanical key (tongue) actuator and robust enclosure, this safety switch is ideal for monitoring the position of sliding or hinged guards in industrial environments. Rated to IP67, it withstands dust, moisture, and vibration, making it a reliable component in safety interlock systems for machinery and automation equipment. Key Features: Compatibility: Allen-Bradley Guardmaster Series safety systems Switch Type: Tongue interlock switch for mechanical key actuation Safety Function: Prevents machine operation when guard doors are open or misaligned Contact Configuration: 2 N.C. safety contacts + 1 N.O. auxiliary contact (typical) Housing Material: Rugged, compact enclosure (plastic or metal) Mounting Orientation: Suitable for hinged or sliding guard doors Ingress Protection: IP67 – dust tight and water-resistant Actuator Type: Mechanical tongue/key (must be inserted to operate) Electrical Ratings: Compatible with low-voltage safety control circuits Standards Compliance: ISO 14119, IEC 60947-5-1, UL, CSA, CE certified This tongue interlock switch is ideal for OEMs, machine builders, and safety system integrators requiring a dependable, tamper-resistant solution to help protect personnel from access to hazardous machine areas during operation.
Brand: Allen-Bradley · Category: HMIs & Displays
Key features
- Compatibility: Allen-Bradley Guardmaster Series safety systems
- Switch Type: Tongue interlock switch for mechanical key actuation
- Safety Function: Prevents machine operation when guard doors are open or misaligned
- Contact Configuration: 2 N.C. safety contacts + 1 N.O. auxiliary contact (typical)
- Housing Material: Rugged, compact enclosure (plastic or metal)
- Mounting Orientation: Suitable for hinged or sliding guard doors
- Ingress Protection: IP67 – dust tight and water-resistant
- Actuator Type: Mechanical tongue/key (must be inserted to operate)
- Electrical Ratings: Compatible with low-voltage safety control circuits
- Standards Compliance: ISO 14119, IEC 60947-5-1, UL, CSA, CE certified
Specifications
| Manufacturer part number | 440K-MT55029 |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | Safety Systems |
| Part Number | 440K-MT55029 |
| Subcategory | Safety Interlock Switch |
| Actuator | Fully-Flex |
| BBM or MBB | Break Before Make |
| Conduit Entry/Connection Type | 1/2in NPT Conduit |
| Contacts (Safety/Auxiliary) | 3 Normally Closed, 1 Normally Open |
| Housing Type | Metal |
| Model Type | Standard |
| Product Family | MT-GD2 |
| Weight | 1.20 lbs |
| Product type | Tongue Interlock |
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