ITW Linx MCO4X4-60 towerMAX CO/4x4 4-Line RJ-11/45 Surge Protector

ITW Linx MCO4X4-60 towerMAX CO/4x4 4-Line RJ-11/45 Surge Protector

The ITW Linx MCO4X4-60 towerMAX CO/4x4 is a secondary central office (CO) telecom surge protection module designed to protect four RJ-11/45 phone and data lines simultaneously. It provides 8-wire protection with a voltage limiting threshold of 260 volts and is specifically configured to protect CO line Pins 4 and 5. The unit is UL Listed as a Secondary Telephone Protector.

Specifications & What's Included

• Model: MCO4X4-60
• Comcode: 407228923
• Type: Secondary Telecom Protector — Central Office (CO) Protection Module
• Number of Lines Protected: 4 CO Lines
• Wire Protection: 8-Wire
• Voltage Limiting: 260 Volts
• Pins Protected: Pins 4 & 5
• Input/Output: RJ-11/45 Compatible
• Compatible With: Key Systems (Pins 4 & 5 equipment)
• Certifications: UL Listed – Secondary Telephone Protector (7VA6)
• Includes: Unit (sealed in original plastic), instruction manual, mounting screws with brass eyelet, and 4 telephone patch cables

Applications

The towerMAX CO/4x4 is used in business telephone environments — particularly key systems and small PBX installations — where central office lines enter a building and need protection from lightning-induced surges and electrical transients before reaching sensitive phone system equipment. Secondary telecom protectors like this one are installed downstream of a primary protector (at the point of entry) to provide a second layer of defense at the telephone equipment itself. The RJ-11/45 interface makes it compatible with standard telephone wiring, and the 4-line, 8-wire design suits multi-line business phone systems. This type of protector is standard in commercial installations where uninterrupted phone service is critical and direct exposure to outside plant wiring creates surge risk.