HPL 4 NO Add On Block-AU-4

The HPL 4 NO Add On Block (AU-4) is a reliable modular auxiliary contact block designed to expand the control capabilities of HPL power contactors. It provides four Normally Open (NO) contacts, making it ideal for additional signaling, interlocking, or control circuits without changing the main contactor. Easy to mount on top, compact in design, and built for industrial environments, this add-on block ensures flexibility and efficient panel wiring with trusted HPL quality from HPL Electric & Power Ltd.

Key Features at a Glance

• Four Normally Open auxiliary contacts

• Modular add-on design – no contactor replacement needed

• Easy and quick top mounting

• Supports signaling, control & interlocking circuits

• Compact and space-saving

• Reliable performance for industrial panels

Why Choose This Product

The HPL AU-4 add-on block is a cost-effective way to increase the functionality of your existing contactors. Its modular design reduces downtime, simplifies wiring, and ensures consistent performance in control panels. Backed by HPL’s proven manufacturing standards, it’s a dependable choice for both OEMs and panel builders.

Ideal For

• Industrial control panels

• Motor control centers (MCC)

• Automation systems

• Signaling and indication circuits

• Electrical panel upgrades

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FAQs

Q1. What does 4 NO mean in this add-on block?
It means the block has four Normally Open auxiliary contacts used for control and signaling.

Q2. Is the AU-4 compatible with all HPL contactors?
It is designed for HPL power contactors. Compatibility depends on the specific contactor series.

Q3. Can this be installed without replacing the main contactor?
Yes, it is a modular top-mounted add-on, so no replacement is required.