Allen-Bradley 700-HLT1U1 Bulletin 700-HL Terminal Block Relay

Product Overview

The Allen-Bradley 700-HLT1U1 functions as a high-density interface solution for modern control cabinets. This terminal block relay combines a slim profile with powerful switching capabilities, allowing seamless interposing between low-level PLC outputs and high-power field loads. It features a replaceable relay module and an integrated socket system to simplify maintenance and reduce downtime. We supply this product as 100% brand new and original to ensure maximum electrical service life in your automation system.

Technical Specifications

The 700-HLT1U1 utilizes a compact architecture to deliver the following technical performance:

• Product Type: Terminal Block Relay with Socket

• Supply Voltage: 110-125V AC/DC

• Contact Output: SPDT (1 C/O - Changeover)

• Nominal Current: 6 Amps

• Connection Type: Secure Screw Clamp Terminals

• Protection: Built-in Coil Surge Protection

• Status Indication: Standard Integrated LED

• Enclosure Rating: IP20

• Maintenance Features: Replaceable relay module with built-in retainer clip

• Weight: 0.05 lbs (Extremely lightweight for high-density DIN rail mounting)

Engineering Advantages

• Space-Saving Slim Design: The 6.2mm width allows engineers to pack dozens of relay channels into minimal DIN rail space. This solves the industrial pain point of overcrowded control panels and enables the use of smaller, more cost-effective enclosures.

• Simplified Maintenance: The built-in retainer clip secures the relay module against high-vibration environments while allowing for tool-free replacement. You can swap a failed relay module without disturbing the field wiring at the screw clamps.

• Universal Voltage Compatibility: The 110-125V AC/DC coil rating accommodates both AC and DC control circuits. This versatility reduces inventory requirements for facilities operating mixed-voltage control architectures.

• Integrated Circuit Protection: The onboard surge protection clamps inductive back-EMF spikes at the source. This protects sensitive PLC transistor outputs from electrical noise and voltage transients without the need for external diodes or varistors.

• Secure Terminations: Detachable screw clamp terminals provide high-torque retention for field wiring. This connection method ensures gas-tight contacts that resist loosening in applications subject to constant industrial vibration.

FAQs

• Can I replace only the relay part without replacing the entire base? Yes. The 700-HLT1U1 features a modular design. You can pull the replaceable relay module from the socket using the retainer clip, keeping the original base and wiring intact.

• Does this relay provide visual status for troubleshooting? Yes. A standard integrated LED illuminates whenever the coil receives power, allowing maintenance personnel to verify signal flow at a glance without using a multimeter.

• What is the maximum current this relay can switch? The SPDT contacts support a nominal current of 6 Amps. For inductive loads, always verify the derating curves found in the Bulletin 700-HL technical data sheet to ensure long-term contact reliability.

• Is it possible to use this with a bridging system? Yes. This series supports 2-way through 20-way center jumpers, which allows you to distribute common power or ground across multiple 700-HLT1U1 units quickly and cleanly.