ABB 1SDA058991R1 component specification

ABB 1SDA058991R1 is the full order identity for this Emax /MS switch-disconnector. It serves classic Emax /MS switch-disconnectors and is intended to restore the specified E3 or E4 isolation function. The category image is a reference view only; the delivered ABB 1SDA058991R1 label, hardware and host documentation determine the exact configuration.

Manufacturer data and field limits

For ABB 1SDA058991R1, distinguish the official manufacturer description from checks required at the installation. A source that identifies only a spare-part type does not establish its voltage, current, dimensions or approvals for every host; confirm those on the marked item and the relevant equipment manual.

Procurement evidence

Record ABB 1SDA058991R1 exactly on the enquiry and purchase order, along with the host equipment, quantity and required accessories. Check whether the official product text describes a finished item, subassembly or kit.

For ABB 1SDA058991R1, ask the supplier to confirm the marked delivered version. Packaging photographs and a category image are useful for orientation but cannot replace the complete order code.

Product boundary

Use ABB 1SDA058991R1 only in the assembly position for which it was specified. Note the plant equipment tag, approved drawing number and the removed component's complete designation.

A name that resembles ABB 1SDA058991R1 does not make another part compatible. The decisive comparison is E3N/MS 2500/3200 versus E4H/MS 4000 frame and withdrawable construction, and differences should be referred to the responsible engineer.

Pre-installation hold point

Before installing ABB 1SDA058991R1, apply the authorized lockout, isolation and stored-energy procedure. Qualified personnel should review the host manual and site-specific hazards.

Inspect ABB 1SDA058991R1 for damage, revision differences and missing accessories. A mismatch should remain on hold until it is resolved; do not force a mechanical fit or bypass an interlock.

Interface map

Trace where ABB 1SDA058991R1 connects electrically and mechanically. Compare terminals, fasteners, connector keys, clearances and protective coordination with the current equipment drawing.

The E3 and E4 frames belong to an /MS family but require their own matched cubicles. Capture any software, control-voltage or environmental requirement affecting ABB 1SDA058991R1 before releasing work.

Commissioning evidence

Install ABB 1SDA058991R1 to the approved drawing and then verify racking, isolation and indication. Record observed behavior, settings and measured values that the site procedure requires.

For ABB 1SDA058991R1, include both normal operation and a relevant alarm, isolated or alternate state. A successful power-on indication by itself does not prove the full function.

Variant decision

The classic Emax /MS switch-disconnectors family can contain size, voltage, pole-count or connector variants. ABB 1SDA058991R1 is the representative code for this page, not a universal substitute for every variant.

Compare each related ABB 1SDA058991R1 family code with its own official designation. Functional or physical differences can make two similar codes unsuitable for the same position.

Service continuity

Retain the ABB 1SDA058991R1 code, delivery information, equipment tag and acceptance record together. This supports a future replacement without guessing from appearance.

When ABB 1SDA058991R1 is ordered again, include the verified host version and any matched companion parts. Keep evidence of a formally approved substitution separate from ordinary related-model references.

Other order codes represented on this series page

The codes below share the verified classic Emax /MS switch-disconnectors grouping with ABB 1SDA058991R1. They are listed here instead of receiving separate product pages. Check each full code's distinct frame, rating and installation interface; this list does not declare interchangeability.

• 1SDA058987R1 E3N/MS25003pWMPnew
• 1SDA059005R1

Final identification

Use ABB 1SDA058991R1 in full on the receiving and maintenance record.

Archive the ABB 1SDA058991R1 installation and functional result with the equipment history.