Electrical Distribution · 18 attributes

Safety switch product attributes

Safety switch attributes for catalogs: fusible vs non-fusible, fuse class accepted, SCCR by fuse type, horsepower ratings and NEMA enclosure type.

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Safety switches, also called disconnect switches, look straightforward: an amperage, a voltage, a pole count and an enclosure. The complexity comes from how those combine with fuses and motors. A fusible switch may accept one fuse class as shipped and another only with a rejection kit, and its short-circuit current rating changes with the fuse installed. Horsepower ratings are published as standard and maximum values that depend on the fuse type.

Supplier data tends to lose these distinctions. Fuse class is written as a list without saying which clips are installed. Horsepower is given as one number without the voltage, phase or fuse basis. General duty and heavy duty switches are mixed in one list despite different ratings and applications. Enclosure types are sometimes given as IP codes even though NEMA types and IP codes are not directly equivalent.

This template captures duty, protection method, ratings, fuse compatibility, terminals and listing evidence in separate fields. A buyer can then match the switch to the motor, the fuses and the location, and a reviewer can check every value against the manufacturer's ratings label or selection guide.

The safety switches & disconnects attribute template

18 candidate fields in 5 groups, ordered the way a record gets built: identify the item, capture its specifications, then record fit and the evidence behind any claim. 8 are marked Core: without them the item cannot be identified or filtered. Example values show the expected format only; they do not describe a real SKU.

Identity

Which exact item, variant and pack this record describes.

Check before use: Preserve leading zeros and punctuation, validate against the manufacturer record, and check the GTIN check digit and packaging level before linking.

Attribute Type Priority Example format
Manufacturer Part Number (Catalog Number) manufacturer_part_number_catalog_number Identifier Core SS-HD-60F-3-4X
GTIN / UPC gtin_upc Identifier Channel / evidence 00812345060300

Technical specifications

Measured or rated values that must travel with their unit and test conditions.

Check before use: Store the number and unit separately. Convert only when the source unit and test conditions are known.

Attribute Type Priority Example format
Current Rating current_rating Number · A Core 60
Voltage Rating (AC) voltage_rating_ac Controlled list · V AC Core 600V AC
NEMA Enclosure Type nema_enclosure_type Controlled list Core Type 4 / 4X / 5
Short-Circuit Current Rating (SCCR) short_circuit_current_rating_sccr Text · kA Buyer decision 10 kA with Class H fuses; 200 kA with Class R or J fuses
Horsepower Rating (Std / Max) horsepower_rating_std_max Text · hp Buyer decision 480 V AC, 3-phase: 20 hp Std / 40 hp Max
DC Voltage Rating dc_voltage_rating Controlled list · V DC Buyer decision 250V DC

Selection attributes

The type, material and option choices buyers filter and compare on.

Check before use: Map supplier wording to a governed vocabulary only after checking the source text and which variant it applies to.

Attribute Type Priority Example format
Switch Duty switch_duty Controlled list Core Heavy Duty
Protection Method protection_method Controlled list Core Fusible
Poles / Wires poles_wires Controlled list Core 3 Pole / 4 Wire
Enclosure Material enclosure_material Controlled list Core 304 Stainless Steel
Fuse Class Accepted fuse_class_accepted Controlled list Buyer decision Class H standard; Class R with rejection kit
Neutral Assembly neutral_assembly Controlled list Buyer decision Insulated groundable, factory installed

Fit & compatibility

What the item mounts to, mates with, replaces or works alongside.

Check before use: Keep model and series qualifiers. A similar-looking part is not a verified fit until a source says so.

Attribute Type Priority Example format
Line / Load Lug Wire Range line_load_lug_wire_range Text · AWG / kcmil Buyer decision #14 to #2 AWG (Al/Cu)

Evidence & compliance

Listings, standards, classifications and origin claims that need a document behind them.

Check before use: Link the manufacturer document or label with its edition or date. Never copy a certification from a neighboring SKU.

Attribute Type Priority Example format
Service Entrance Rated service_entrance_rated Controlled list Channel / evidence Yes
Listing Standard (UL 98) listing_standard_ul_98 Text Channel / evidence UL 98 listed
Country of Origin country_of_origin Controlled list Channel / evidence Mexico

Normalize supplier values

The same value arrives in many spellings. Map each raw string to one governed value, and keep the raw text beside it so a reviewer can see what the supplier actually wrote.

NEMA Enclosure Type

3RNEMA 3RType 3RRainproofNEMA-3R OutdoorTYPE-3R

Normalized to Type 3R

Protection Method

Non-FusibleNonfusibleNon FusedNFWithout FusesUnfused

Normalized to Non-Fusible

Fuse Class Accepted

Class RRCL RClass RK1/RK5R Fuse ClipsClass R Rejection

Normalized to Class R

Often missing from supplier files

These fields are commonly absent from price lists and basic feeds, even though the information usually exists in a datasheet, label or installation manual. Treat an empty value as a request for evidence, not as permission to fill it from a similar model.

  • Short-Circuit Current Rating (SCCR)
  • Fuse Class Accepted vs. Clips Installed
  • Horsepower Rating (Standard vs. Maximum)
  • Service Entrance Rated
  • DC Voltage and DC Horsepower Rating

Questions the record must answer

Buyers and counter-sales reps choosing safety switches & disconnects ask questions like these. Each one needs a specific field, sourced for the exact variant.

  • Does this switch ship with Class R rejection clips, or is that a separate kit?
  • Is it rated for a 20 hp motor at 480 V three-phase?
  • Can this disconnect be used as service equipment?
  • What short-circuit rating can I claim with the fuses I plan to install?

From supplier file to record

  1. Resolve identity first. Link the supplier SKU, manufacturer part number and packaging identifiers without merging distinct variants or pack sizes.
  2. Extract with the source attached. Pull values from rows, tables and datasheets, keeping the raw text, unit and page or row reference.
  3. Map to your classification. Assign the ETIM, ECLASS, UNSPSC or internal class your company licenses, and keep the supplier's original terms.
  4. Review, sync and watch. Hold conflicts and safety-related values for a category expert, write approved values to ERP or PIM, and recheck when the supplier sends a new file.

For the full method, see how to build a category attribute template and the category catalog gap audit.

FAQ

Why store SCCR when the switch already carries a listing?

A listing confirms the switch was evaluated to its standard; it does not tell a designer how much fault current the switch can withstand in a particular installation. That value, the short-circuit current rating, often depends on the fuse class installed, with a low value for general fuse classes and a much higher one with specified current-limiting fuses. Store each SCCR together with its fuse basis and voltage, taken from the manufacturer's label or documentation, so the right value can be compared with the available fault current.

How should standard and maximum horsepower ratings be stored?

Store them as separate rows linked to voltage, phase and the fuse type each value assumes. Manufacturers typically publish a standard rating and a higher maximum rating that applies with time-delay fuses. A single horsepower number without that context can lead to a switch being selected for a motor it only serves with a particular fuse. A small table with voltage, phase, AC or DC, fuse basis and horsepower keeps quote logic accurate. Take the values from the manufacturer's ratings table rather than a reseller summary.

Can general duty and heavy duty switches share one schema?

Yes, provided switch duty is a required controlled field and the schema allows for ratings that only one class carries. Heavy duty switches are typically offered in higher voltage ratings, larger amperages and more enclosure options, with horsepower and short-circuit ratings suited to industrial use; general duty switches are aimed at lighter residential and commercial applications. A shared attribute set keeps filtering consistent, and the duty field prevents one class being offered as a substitute for the other.

Can an IP code be derived from a NEMA enclosure type?

Not reliably. NEMA enclosure types include requirements such as corrosion resistance, construction details and, for some types, external icing, which IP codes do not cover, while IP codes grade dust and water ingress in more detail. Published comparison charts work in one direction only: a NEMA type may meet or exceed a certain IP code, but an IP code does not establish a NEMA type. Store the NEMA type as stated, and store an IP code only when the manufacturer explicitly declares one.

Claro

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Claro runs this automatically: resolve identity, fill missing attributes, validate updates, and write clean records back into your PIM/ERP. Upload a sample supplier file for a free catalog audit.

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