ABB 3HAC023621-004 Shrink Boot Adapter, Shell Size 16

ABB 3HAC023621-004 Shrink Boot Adapter, Shell Size 16 for UTOW Connectors

ABB 3HAC023621-004 is the shrink boot adapter, ABB type designation UTO16AD, for UTOW shell-size-16 connectors in ABB robot cabling. It is a defined ABB accessory rather than a generic heat-shrink sleeve, so it has to be matched by the connector type designation and shell size called out in your cabling documentation. Send us that designation and we will confirm the fit before you order.

Specifications

Industrial Applications

• Strain relief and environmental sealing at the cable entry of UTOW shell-size-16 connectors in ABB robot cabling.
• Replacement of a cracked, hardened or split boot on an existing shell-size-16 connector assembly.
• Preventive maintenance where connector boots are inspected and renewed on a schedule in oily, dusty or washdown environments.
• Cable-run repair and re-termination work where the original boot has to be cut away and renewed.
• Cells where the cable flexes close to the connector backshell — the point where unsupported flex first damages conductors.

Design Purpose

A circular connector on a moving robot is only as reliable as its cable entry. Two things attack that point at once: repeated flexing, which works the conductors loose right where they enter the backshell, and the environment — coolant, oil and dust — which reaches the contacts once the seal is gone. ABB fits a defined shrink boot adapter (UTO16AD) on UTOW shell-size-16 connectors to deal with both: the adapter supports the cable so the flex load is taken by the adapter rather than the termination, and it closes the entry against the environment.

Because the adapter is defined by shell size and connector type, it is a fitment-specific accessory rather than a universal heat-shrink sleeve. A boot that looks close enough in diameter may not seat on the backshell or may not seal, and a poorly seated adapter simply moves the failure back to the cable entry. 3HAC023621-004 is therefore matched by the type designation and shell size called out in the cabling or spare-parts documentation — the same discipline as the connector it fits.

Common Failure Modes

• Boot cracking, hardening or splitting from heat, oil or ageing.
• Loss of seal, allowing coolant, oil or dust to reach the connector contacts.
• Strain-relief failure — the cable flexing at the backshell because the adapter is loose, damaged or the wrong size.
• Mechanical damage from cable pull or routing that loads the adapter against the manipulator structure.
• Wrong boot fitted (shell-size or type mismatch) that seats poorly or does not seal.
• Contamination sealed in behind the renewed adapter because the connector face was not cleaned before fitting.

Send us the fault code shown on your controller display and we will look at the diagnosis and the matching spare part with you.

Installing and handling it — what to check before and after fitting:

• Isolate and lock out robot power before working on cabling or connectors, and verify zero voltage on the affected circuit.
• Identify the exact connector by type designation (UTO16AD) and shell size 16 from the cabling documentation. ABB UTOW accessories are shell-size- and application-specific; do not substitute by appearance.
• Follow the ABB assembly procedure for the adapter, with the correct tools and the specified tightening of the knurled section, so it seats and seals as designed.
• Keep the contact area clean and dry; protect the connector face while the adapter is renewed, and check the seating and sealing before returning the robot to production.
• Restore the original cable routing, bend radius and clamp positions, so the adapter is not carrying a side load.
• Carry out safe isolated checks on the circuit before the robot goes back into production.

Why Choose Us

• Specialized in industrial robot spare parts for ABB, FANUC, KUKA and YASKAWA.
• Fitment confirmation before quotation: we check the type designation and shell size against your connector and cabling documentation, so the adapter matches the connector actually installed.
• We can supply the matching UTOW shell-size-16 connector (3HAC023819-004) with the adapter, so both halves of the connection arrive together.
• Each unit is inspected before shipment, with secure export packaging and full order tracking from Shanghai.
• Multiple payment methods accepted — PayPal, T/T, and Alibaba Trade Assurance.

Related Products

• ABB 3HAC023819-004 UTOW 26-pole bayonet pin connector (UTOW61626PH, shell size 16) — the connector this adapter fits.
• ABB 3HAC029896-001 IRB 2600 manipulator harness, axes 1-6, customer connection — a different part from this one.
• ABB 3HAC029000-001 manipulator harness, axes 1-6, customer body cable — a different part from this one.
• ABB 3HAC024479-001 CP/CS cable harness for the IRC5 controller cabinet — a different part from this one.
• More ABB cabling in the ABB robot cables category.

Send us the type designation on the connector in your robot, the article number on the part you are replacing, and the quantity you need. We will confirm the matching article and give you a quotation.