I think the industry has it exactly backwards.
For the past six years, I've been handling procurement for a mid-sized automation integrator. Handling — or rather, cleaning up the messes from bad purchasing decisions. In my first year (2017), I made the classic mistake: I went with the vendor who gave me the lowest price on a Siemens Sirius contactor package. It was a $4,500 order. The 'total' came in at $3,750. I thought I was a hero. Then the invoice arrived. The expedited shipping we'd agreed to? Not included. The required documentation for export? $180 extra. The cable set? A separate line item. The final cost? $4,890. Net loss: $390, plus a week of my boss asking why my 'budget-beating' deal blew the project margin.
But that's the wrong lesson. The right one is harder to swallow: The vendor who shows you a higher price but lists every single fee upfront has already won my trust — and usually ends up costing less.
I only believed this after ignoring it and eating a $390 mistake on a 2 pole 40 amp contactor 240 volt coil order.
Argument 1: The Psychological Trap of the 'Low' Price
Every salesperson in the industrial components space knows this trick. You're comparing quotes for a Siemens 3RT contactor. Vendor A quotes $145. Vendor B quotes $160. Your brain already assigned a 10% premium to Vendor B. The trap is that your decision-making process stops at 'which number is smaller.' You don't ask, 'Which number is final?'
In my experience, the $145 quote from Vendor A often excludes:
- The required overload relay (an essential component).
- The 24V DC coil voltage variant if you didn't specify.
- The UL certification document if you need it for your panel.
It took me three years and about 150 orders to understand that this isn't just a pricing game. It's a trust test. The vendor who is willing to show a higher number is betting that you value certainty over the illusion of a deal. They're usually right.
Argument 2: The Hidden Cost of 'Cheap' on Project Margins
Let's get specific. A client needed a batch of Siemens SIRIUS contactor units for a new machine build. We had a firm deadline. The low-ball quote came in. We approved it. Then the issues started.
The 'Budget' Breakdown
- Issue 1: The quote was for a Siemens contactor but the spec sheet was generic. The actual unit didn't match our engineering drawings.
- Issue 2: The coil voltage (24V DC) was not clearly marked on the quote. It was an upcharge we hadn't budgeted for.
- Issue 3: The contact block we needed to integrate with the PLC was 'available as an accessory' - surprise, $55 each.
- Extra cost: $780 in expedite fees to get the correct parts.
- Time lost: 3 days in engineering rework.
- Relationship cost: Client unhappy we missed the initial commissioning window.
Saved $200 by skimming the surface. Ended up spending $780 on the consequence of that shallow reading. Net loss: $580 and a weekend. The 'budget vendor' choice looked smart until we saw the actual product. The Tyco contactor from our regular supplier? It was more expensive by $12 per unit, but it came with a full datasheet, a schematic, and a test certificate. That $12 upfront prevented a $55 expedite fee later. It’s stupidly simple in hindsight.
Saved $200 by going with the 'lowest option.' Ended up spending $780 on the consequence. If you ask me, that's a red flag bigger than the price difference.
Argument 3: The 'Reverse' Trust Calculation
Here's the argument that usually surprises people. I've learned to judge a vendor's transparency not by their base price, but by how easily they reveal their add-on costs.
I had a vendor once for a 2 pole 40 amp contactor 240 volt coil order. Their base price was good. I called and asked, 'What's not included?' The salesperson stammered. 'Uh, shipping is sometimes an extra line item.' 'What about the mounting plate?' 'Oh, that's standard.' It was a guessing game.
Compare that to the vendor I use now for most Tyco contactor and Siemens contactor needs. I asked the same question. They paused, and then said, 'The base price includes the unit and basic documentation. Expected add-ons are: shipping (varies by zone, but usually $25-$40), a 3D CAD model if you need it ($0 for our regular account), and the optional overload relay ($45). The only surprise would be if you need a non-standard coil voltage, but you've already specified 24V DC.' That conversation took 30 seconds. I didn't feel like I was being 'handled.' I felt like I was being informed.
The vendor who lists all fees upfront—even if the total looks higher—usually costs less in the end. That's not a paradox. That's a pattern. The cost of uncertainty is real, quantifiable, and usually larger than the supposed savings. We've now standardized our supplier evaluation on 'disclosure completeness' as a primary metric. It's stopped 47 potential budget blowouts in the past 18 months.
The vendor who can't list their 'not included' items clearly hasn't thought about their process. I don't trust that.
Responding to the Obvious Objection
I know what you're thinking: 'But what if your Siemens SIRIUS contactor manual just costs more from a transparent vendor? You're paying a premium for the fee disclosure that you could spend on dinner.'
Fair point. In some cases, yes. There are vendors who use 'transparency' as a marketing gimmick to justify a 15% price premium on the base unit. The accusation stung, so I tested it. In 2024, I sourced a batch of Tyco contactors from three suppliers: one with a low, opaque base; one with a medium, semi-transparent base; and one with a higher, fully disclosed structure. The final cost of the fully disclosed vendor was, on average, 4% higher than the 'cheapest' vendor. But the time I spent managing the 'cheapest' vendor's add-on process cost me about 2 hours of labor and $300 in stress-induced errors.
The objection is valid if you are purely comparing unit price and ignoring the cost of your own procurement labor, the risk of installation delays, and the potential damage to your own client relationships. If you only buy one contactor a year, go for the cheapest base price. But if you buy hundreds of units of 3 pole contactors or motor starter contactors annually, the transparency premium pays for itself in the first mistake it prevents.
It's not about being naïve. It's about being realistic about total system cost.
My Final Take: The Price of Trust is Better Than the Cost of Surprise
So, to bring it back around: I think the industry has it backwards. We've been trained to hunt for the lowest base number. But the best financial decision for a B2B procurement is almost never the lowest base number. It's the number that comes with a complete, unflinching, and boringly detailed list of what it actually covers.
If you're ordering a Siemens contactor distributor list and you're vetting suppliers, ask them the question that reveals everything: 'Show me your standard price list, and then show me your complete price list with every common add-on.' The vendor who hesitates is hiding something. The vendor who says, 'Sure, it's right here,' is the one I'd trust with a $50,000 order for Siemens 3TF contactors. I've made the mistake of trusting the low number. I'm not making it again.
Turns out, the transparent price isn't always the cheapest. But it's often the one that costs you the least.
After 6 years of procurement management, I've come to believe the 'best' price is the one that lets you sleep through the night.
