Technical overview of ABB 1SDA100721R1 in its equipment series

ABB 1SDA100721R1 is the exact ordering identity for this XT6 molded-case circuit breaker. It belongs to Tmax XT6 molded-case breakers. The intended project task is to protect the engineered XT6 feeder. A common category image is reference imagery only; the supplied item must be identified from its label and full ABB 1SDA100721R1 code.

Technical data and configuration ledger

The table records ABB 1SDA100721R1 identity and manufacturer text. Values that depend on a specific installed option, local standard or host equipment still need to be checked against the actual unit. Do not treat another code in the ABB Tmax XT6 molded-case breakers family as a drop-in replacement merely because it looks alike.

How does the component fit the assembly?

Place ABB 1SDA100721R1 in the exact assembly position shown on the approved drawing. Review conductor access, mounting orientation, enclosure space and nearby devices as applicable to this XT6 molded-case circuit breaker.

Compare each full code against the coordination study. For ABB 1SDA100721R1, record the host revision, matched accessories and any installation restrictions before work begins.

What should receiving staff compare?

On delivery, compare ABB 1SDA100721R1 on the packaging and nameplate with the order. Check quantity, intact terminals or connectors, damage and any included mounting pieces.

Quarantine an item marked differently from ABB 1SDA100721R1 until its exact identity is resolved. The invoice description or a reference image alone cannot establish technical equivalence.

Which safety preparations come first?

Before work on ABB 1SDA100721R1, follow the site's isolation, lockout and stored-energy procedure. Qualified personnel should review the installation instructions relevant to the host equipment.

If ABB 1SDA100721R1 interfaces with a protected or hazardous circuit, preserve the approved protective coordination and area requirements. Never infer permission to energize from the spare-part designation.

How is the installed result accepted?

After installing ABB 1SDA100721R1 under the approved method, verify trip settings, isolation and operating sequence. Check the normal operating state and the applicable alarm, alternate or isolated state.

Write the test observation for ABB 1SDA100721R1 in the equipment record, including settings, measured values and sign-off where required. A visual fit alone is not an acceptance test.

What should be retained for future purchases?

Keep the complete ABB 1SDA100721R1 order code with the equipment tag, revision and accepted settings. This lets future buyers distinguish the correct configuration from a related item.

For ABB 1SDA100721R1, also retain the manufacturer product reference, delivery documentation and any approved deviation. These details reduce repeat investigation in later maintenance cycles.

How are similar codes treated?

Other order codes from Tmax XT6 molded-case breakers may share a mechanical or functional family with ABB 1SDA100721R1. They are references for search and enquiry, not a statement that their ratings or approvals match.

Use ABB 1SDA100721R1 as the representative page while checking each related code separately for the actual frame, electrical data, connection and duty. Do not combine distinct product series simply because their stock numbers are adjacent.

What must be identified before ordering?

For ABB 1SDA100721R1, capture the equipment tag, panel drawing, old part marking and full code. These establish whether the proposed part serves the same functional position in the installation.

When asking for ABB 1SDA100721R1, describe the electrical role as XT6 molded-case circuit breaker and include any accessories that are separate line items. A family name by itself does not identify a finished configuration.

Which specification creates the main selection risk?

The central ABB 1SDA100721R1 check is N/S/H breaking class, 800/1000 A current, pole count and Ekip Dip trip function. Confirm it using the manufacturer data and the actual equipment schedule before committing to a replacement.

Record the outcome for ABB 1SDA100721R1 in the purchase file. Differences in duty, pole count, terminal form, frame size or control interface require an engineering decision, even when the exterior is similar.

Related ABB order codes in the same series

The ABB 1SDA100721R1 page also references these verified codes. They remain separately identifiable variants and will not be given duplicate standalone product pages. Compare each code's ABB designation before substituting.

• 1SDA100732R1
• 1SDA100741R1
• 1SDA100742R1

Final purchase reference

State ABB 1SDA100721R1 in full when requesting the XT6 molded-case circuit breaker and provide the equipment context.

Confirm ABB 1SDA100721R1 against the marked delivered item before closing the order.