Engineering & supplier tools
Find the part, then check it against the manufacturer.
Find parts and quote them in one place — by order code, by rating, or as a pasted parts list — then check anything against the manufacturers' own documentation and selection tools. Those are theirs, not ours, and are labelled as such.
Find parts and build your quote
Three ways in, one quote. Type an order code or the rating you need, filter the catalogue by its own values, or paste a whole parts list. Whatever you add lands in your quote request beside it, where you can check it, change it and send it without leaving this page.
Code or description
An order code, part of one, or the ratings you need: current, poles, voltage, coil, enclosure. Every answer is a part on this site, and where it differs from what you asked for, the difference is named.
Results are read from this catalogue and ranked by how closely they match. Written explanations are not enabled on this site.
What this searches
It matches only against the products published on this catalogue. A part RMS can supply but has not published here will not appear — send that one to us directly and we will source it.
These aids search and filter what is published on this catalogue. They do not see your installation — not the supply, the fault level, the ambient temperature, the cable, the duty or the standard you are designing to — and they make no allowance for any of it. Nothing they return is a design calculation, a compliance check, or a substitute for competent engineering design by a suitably qualified person. Check every result against the manufacturer's own documentation and the applicable standard before you order or build.
Filter by rating
What this filters on
Only on attribute values actually recorded against products on this catalogue. A product whose rated current has not been captured is excluded from a filter on rated current, so removing a filter can reveal more valid options, not fewer. It applies no derating, no coordination and no selectivity check.
These aids search and filter what is published on this catalogue. They do not see your installation — not the supply, the fault level, the ambient temperature, the cable, the duty or the standard you are designing to — and they make no allowance for any of it. Nothing they return is a design calculation, a compliance check, or a substitute for competent engineering design by a suitably qualified person. Check every result against the manufacturer's own documentation and the applicable standard before you order or build.
Paste a parts list
Paste a schedule straight out of a spreadsheet, or type the lines. Every line is matched against this catalogue, with price, stock and an alternative where needed, and anything that cannot be matched is carried into your request for the sales desk.
| Part number or description | Qty |
|---|---|
No part numbers to hand? Describe what you need instead.
How finding and quoting works on RMS-SE.Africa
- A code is matched exactly firstAn order code is looked up as written, then without the spaces and hyphens suppliers add. A single mistyped character is corrected only when exactly one part in the catalogue is that close; two candidates is a guess, and a guess on an order code ships the wrong part.
- A rating is matched against the parts' own dataCurrent, poles, voltage and the rest are compared with what is recorded against each product. A part that meets some of it but not all is shown as a possible match, with what differs named.
- A pasted list keeps every lineEach line is matched, and anything that cannot be is carried into the request as text for the sales desk to source. A suggestion is always labelled as a suggestion, never as a confirmed equivalent.
- The request is checked by a personPrices shown are list prices in rand excluding VAT. Every line is confirmed against stock and current pricing before a formal quotation is issued, and nothing is charged.
Questions about quoting
Can I quote a whole bill of materials at once?
Yes. Paste it as it comes out of a spreadsheet, one part per line: the order code and the quantity, separated by a tab, a comma, a space or an "x". Up to 250 lines go in at once. Signed in, every line is matched against the catalogue; otherwise the first 50 are, and the rest go to the sales desk as you wrote them.
What if a part is not on this site?
It goes into the request as text and the sales desk sources it, or call +27 11 708 2811. Nothing is offered in its place unless it is labelled as an alternative.
Do I need an account?
No. A name and an email address are enough for a quotation. Signed in, your quotations are also kept under Quotations in your account.
Compare ranges
The same duty across several ranges, at the ratings each manufacturer publishes — with this site's prices on its own order codes.
- 3-pole contactors compared: ABB AF vs Schneider TeSys D vs Lovato BF The three contactor ranges the RMS storefronts stock most, lined up by AC-3 rated current — the rating a motor starter is chosen on. Each cell is one order code at that rating (the 100–250 V AC/DC or 230 V AC coil where the range offers it); every range has other coil voltages and auxiliary-contact builds on its product pages.
- Acti9 iC60a vs iC60N vs iC60H vs iC60L: which breaking capacity do you need? Four miniature circuit breakers with the same frame, curves and ratings, separated by breaking capacity — the fault current the device is tested to clear. Lined up by pole count and rating (C curve), each cell names the order code and states the capacity the manufacturer gives it under both standards.
- Single-pole C-curve MCBs compared: ABB S200 vs Schneider Acti9 iC60N vs Hager One row per rating, one order code per range, with the breaking capacity each manufacturer states for it. The C curve is the general-purpose characteristic for mixed resistive and inductive loads; each range also offers B and D curves.
- 3-pole moulded case circuit breakers compared: ABB Tmax XT / Tmax T vs Schneider ComPact / EasyPact vs ElectroMechanica MCCB One row per frame rating, one order code per range, with the breaking capacity each manufacturer states for it. Ratings are the manufacturer's own; a range that does not publish a figure at a rating is left blank rather than filled in.
- 3-pole motor protection circuit breakers compared: ABB MS range vs Schneider TeSys GV2/GV3 One row per motor rated current, with the order code each range offers at it. A motor protection breaker is sized on the motor's full load current, so that is what keys the table — check the adjustment band in the order code covers it.
- 3-pole air circuit breakers compared: ABB Emax 2 vs Schneider MasterPact vs ElectroMechanica ACB One row per frame rating, with the breaking capacity each manufacturer states for it. An air circuit breaker is the incomer on a main board: the rating here is the frame, and the trip unit inside it is set to the actual load.
Calculation aids
Motor starter selector — contactor and overload by motor rating
Enter the motor rating on the nameplate. We list the order codes whose own published AC-3 rating covers it, on this site, with prices.
Searching 179 contactors on this site whose manufacturer states an AC-3 motor rating (up to 450 kW) and 70 overload relays with a printed setting range. Both nameplate figures are on the motor; we do not calculate one from the other.
Assumptions
Every rating shown is the manufacturer's own published figure for that order code — the AC-3 motor rating at 400 V for a contactor, and the printed setting range for an overload relay. Nothing on this page converts kW into amps: no power factor or efficiency is assumed, because the motor's full-load current is on its nameplate and that is the number an overload relay is set from. Direct-on-line starting of a standard cage induction motor is assumed for the AC-3 duty; star-delta, soft-start, plugging, inching and switched-capacitor duties change the selection and we will quote them.
These aids search and filter what is published on this catalogue. They do not see your installation — not the supply, the fault level, the ambient temperature, the cable, the duty or the standard you are designing to — and they make no allowance for any of it. Nothing they return is a design calculation, a compliance check, or a substitute for competent engineering design by a suitably qualified person. Check every result against the manufacturer's own documentation and the applicable standard before you order or build.
Manufacturer tools and documentation
These are the manufacturers' own tools, hosted on their own sites. RMS does not operate them and cannot change what they return. Every link below leaves this site and opens in a new tab.
| Tool | Manufacturer | Type | What it does |
|---|---|---|---|
| ABB DriveSize Opens ABB DriveSize on abb.com, in a new tab | ABB | Selection tool | Dimensions an ABB drive and motor against a load profile and reports the resulting selection. |
| ABB Library Opens ABB Library on library.abb.com, in a new tab | ABB | Document library | Datasheets, catalogues, manuals, certificates and declarations for ABB products, searchable by product code. |
| ABB low-voltage product pages Opens ABB low-voltage product pages on abb.com, in a new tab | ABB | Manufacturer catalogue | The manufacturer's own pages for the low-voltage range: ratings, ordering data and technical descriptions. |
| ElectroMechanica catalogues Opens ElectroMechanica catalogues on em.co.za, in a new tab | ElectroMechanica | Document library | The published catalogues for the ElectroMechanica range, by product family. |
| ElectroMechanica certification Opens ElectroMechanica certification on em.co.za, in a new tab | ElectroMechanica | Compliance documents | Certificates and compliance documentation published by ElectroMechanica for its range. |
| ElectroMechanica downloads Opens ElectroMechanica downloads on em.co.za, in a new tab | ElectroMechanica | Document library | Datasheets, manuals and software downloads published by ElectroMechanica. |