ITW Linx UltraLinx UP3B-235 66-Block Surge Protection Module

The ITW Linx UltraLinx UP3B-235 is a 66-block surge protection module designed to safeguard telephone, voice/data, fax/modem, and PBX lines connected to 66 punchdown blocks from electrical surges, lightning-induced transients, and power cross events. It delivers solid-state transient suppression with 235 V clamping voltage and fast response to protect critical telecommunication infrastructure.

Featuring primary and secondary protection, sneak current protection, and dual LED status indicators for Protection OK and Ground OK, the UP3B-235 provides reliable line defense while enabling quick visual assessment of its operational status. It integrates easily with legacy 66 block wiring closets and structured cabling installations.

Key Features & Benefits

• 66-Block Surge Protection — Protects analog voice and data lines at punchdown blocks.
• 235 V Clamping Voltage — Effective protection threshold for telco and signal circuits.
• Primary & Secondary Protection — Dual stage protection against surges and spikes.
• Sneak Current Protection — Helps prevent fire risks due to power cross events.
• LED Status Indicators — Visual confirmation of Protection and Ground status.
• Fast Solid-State Response — Reacts in nanoseconds to transient surges.
• Compact 66 Block Design — Integrates directly on standard telecom punchdown blocks.
• 5-Year Product Warranty — Confidence in long-term protection.

Technical Specifications

Compatibility & Use Cases

The UP3B-235 is ideal for:

• Telephone systems, PBX & voice circuits
• Fax/modem and legacy analog data lines
• 66 block wiring closets and telco rooms
• Campus telecom entrance protection

⚠ Ensure proper grounding per installation guidelines for effective surge suppression.

Why Buy From Multilink

✔ Authorized ITW Linx distributor
✔ Genuine surge protection modules
✔ Fast shipping with secure packaging
✔ Pre- and post-sale technical support
✔ Business & volume pricing options

Frequently Asked Questions (FAQ)

Q: What is 66-block surge protection?
A: It guards telephone and data lines connected through 66 punchdown wiring blocks from electrical transients and surges entering the building.

Q: What do the LEDs indicate?
A: One LED confirms protection is active, and the other confirms a proper ground connection, essential for effective surge suppression.

Q: Can this be used on digital data lines?
A: Yes, it’s designed for analog voice and data circuits typically found on legacy telecom infrastructures using 66 blocks.