We Asked 100 Factory Owners: What Was Your Biggest Motor-Related Loss? The Answers Were Shocking

Last year, our field team visited factories across Uttar Pradesh, Rajasthan, Punjab, Haryana, and Maharashtra.

We were not trying to sell anything. We were asking one simple question to every factory owner, plant manager, and production head we met:

"What is the biggest loss your factory has suffered because of a motor or motor starter problem?"

We expected to hear about burnt motors. We expected to hear about downtime. We expected stories of expensive repairs.

What we did not expect was the scale of what people told us. Or how similar the stories were across completely different industries, in completely different states, from factories of completely different sizes.

Here is what 100 factory owners told us.

Before reading further, it helps to understand how motor protection is supposed to work: What Is a Motor Starter? Function, Types and Working

Who We Spoke To

The 100 factory owners we interviewed came from a range of industries and factory sizes. Here is the breakdown:

Industry types: Food processing (23), Textile and garments (19), Auto parts and fabrication (17), Plastic and packaging (14), Pharma and chemicals (11), Paper and printing (8), Construction materials (8).

Factory size: Small factories with 10 to 50 workers made up 61 percent of the sample. Medium factories with 51 to 200 workers made up 29 percent. Larger factories above 200 workers made up the remaining 10 percent.

Location: Uttar Pradesh (38), Rajasthan (22), Punjab and Haryana (21), Maharashtra (19).

Every conversation was conducted in person by our field team. No online surveys. No telephonic interviews. We sat across from these people in their factories, their offices, and sometimes in their production floors and we listened.

The First Surprise: Almost Everyone Had a Loss Story

We expected maybe 60 to 70 percent of factory owners to have a significant motor loss story. Something that cost them real money and real time.

The actual number: 94 out of 100.

Ninety-four factory owners had experienced at least one motor-related loss that they considered significant. Significant meaning a loss that disrupted production, cost them more than the price of the motor itself, or created a safety incident on the factory floor.

Only 6 out of 100 said their motor-related losses had been minor and contained.

When we asked those 6 what was different about their setup, four of them pointed to having invested in proper motor protection panels with digital protection systems. The other two credited dedicated in-house electricians who monitored the motors closely.

The pattern was already becoming clear before we even looked at the individual stories.

What They Lost: The Numbers

We asked every owner who had a significant loss story to estimate the total cost of that single incident. Not cumulative losses over years. Just the one worst incident they could recall clearly.

Here is what the numbers looked like:

• Losses below 50,000 rupees: 21 factory owners.
• Losses between 50,000 and 2,00,000 rupees: 38 factory owners.
• Losses between 2,00,000 and 5,00,000 rupees: 27 factory owners.
• Losses above 5,00,000 rupees: 8 factory owners.

The average single-incident loss across the 94 owners who had significant stories: approximately 1,85,000 rupees.

To put that in perspective: the cost of a properly protected Smart Motor Control Panel for the same application typically ranges from 6,000 to 35,000 rupees depending on HP rating and features.

In most cases, the protection that could have prevented the loss cost less than 2 percent of the loss itself.

Also read: This Factory in UP Lost 3 Lakh in One Summer The Reason Was a 1,500 Rupee Starter

The Stories That Stayed With Us

Numbers tell part of the story. But what people actually said told the rest.

Here are eight accounts from our conversations, shared with the owners' permission and with identifying details kept general to protect their privacy.

Account 1 Food processing factory, Kanpur, UP

"Our cold storage compressor motor burned in June. Middle of summer. We had 40 tonnes of finished product in cold storage. The motor burned at night. Nobody noticed until morning. By the time we arranged a replacement motor and got it rewound and installed, two days had passed. We lost the entire stock. That was 14 lakh of product. The motor rewinding cost 18,000 rupees. But the real loss was the stock. All because the starter had no proper protection and nobody knew the motor was running hot."

Account 2 Textile mill, Ludhiana, Punjab

"We have 34 motors running our looms. In one monsoon season, 6 of them burned due to single phasing during a storm. The electricity board feeder had a line fault at 3 AM. Six motors ran on two phases for about 20 minutes before the night shift worker noticed something was wrong. Six motors. All needed rewinding. Total cost was around 2.8 lakh. Plus 11 days of reduced production. All 6 had thermal overload relays. Not one of them tripped in time."

Account 3 Auto parts fabrication, Faridabad, Haryana

"My biggest loss was not a motor burning. It was a safety incident. A loose connection inside a cheap starter caused a spark. The spark ignited some packaging material near the panel. We contained the fire in about 4 minutes. The panel was destroyed. Some machinery was damaged. One worker had minor burns on his hand. Total loss about 4.5 lakh. But honestly the loss I think about is not the money. It is that worker. He was with us for 9 years. He took 3 weeks off to recover. That is not something you put a number on."

Account 4 Plastic packaging factory, Jaipur, Rajasthan

"Every summer we lose at least one motor. Every year. It has become budgeted into our annual expenses. I told our accountant: keep 80,000 rupees reserved for motor repairs in April, May, June. That is how normal it has become for us. We never questioned whether it was preventable. We just accepted it as a cost of doing business in Rajasthan in summer. Your field team was the first to tell me that this is not normal. That good protection should eliminate this completely."

Account 5 Paper mill, Meerut, UP

"The loss that I remember most was not the biggest in money. It was the most avoidable. Our electrician had increased the overload relay setting on our main paper pulper motor because it was giving frequent trips. He thought the motor was fine and the relay was oversensitive. Three weeks later the motor burned completely. It needed full rewinding, 28,000 rupees. But more than that, we lost 6 production days because the motor had to be sent out for rewinding and we had no replacement. That motor had a thermal relay that was malfunctioning in summer heat. The electrician did not know. Nobody told him."

Account 6 Pharmaceutical packaging, Baddi, Himachal Pradesh

"We are in a regulated industry. When a motor fails and production stops, it is not just lost output. It is a batch documentation failure. We had a situation where a tablet coating machine motor failed mid-batch. The entire batch 1.2 lakh tablets had to be rejected because the batch record showed an equipment failure during processing. Motor rewinding was 12,000 rupees. Batch rejection was 6.8 lakh rupees. This is the number nobody talks about in pharma. Equipment reliability is not a maintenance cost. It is a quality cost."

Account 7 Construction materials, Alwar, Rajasthan

"We run stone crushers. The motors run at full load continuously for 10 to 12 hours a day. In two years we have replaced 4 motors completely. Rewinding was not enough each time, the burnout was too severe. Each replacement motor was between 35,000 and 60,000 rupees. Plus we lost daily production of around 18,000 rupees on every day the crusher was down. Our biggest single incident was a 7-day downtime. Do the maths. Our electrician kept saying the motors are too old. When your team came and checked our starters, you found that the contactors inside were under-rated for the actual load. The contactor was rated for 7.5 HP continuous duty. We were running a 10 HP motor at full load all day."

Account 8 Cold storage and food processing, Agra, UP

"I want to share a number that I have never shared publicly before. Over 5 years, I have spent approximately 9.4 lakh rupees on motor rewinding, motor replacement, starter replacement, electrician call-outs, and production losses due to motor-related failures. 9.4 lakh over 5 years. Last year I invested 42,000 rupees in proper digital protection panels for all my motors. In the last 11 months since installation, my motor-related maintenance cost has been 4,200 rupees. One capacitor replacement. That is all. I wish someone had shown me this comparison 5 years ago."

The Three Root Causes That Appeared Again and Again

Across 94 loss stories, three root causes appeared with striking consistency.

Root Cause 1: Thermal overload relay failure in summer conditions

This was the single most common factor, appearing in 67 of the 94 significant loss stories. The thermal overload relay either gave false trips that led to the setting being increased, or it failed to trip in time due to ambient temperature effects. In either case, the motor lost its protection at the moment it needed it most.

Root Cause 2: No effective single phasing protection

Present in 51 of 94 stories. A phase was lost due to a storm, a blown fuse, or a feeder fault. The starter's protection did not respond in time. The motor burned on two phases.

Root Cause 3: Under-rated components inside the starter

Present in 43 of 94 stories. The contactor or the internal wiring was not rated for the actual continuous load being placed on it. Overheating, loose connections, and premature failure resulted.

In 38 of 94 cases, two or more of these root causes were present simultaneously. The motor and the starter were both operating outside safe parameters, and neither the owner nor the electrician knew.

What the Factory Owners Said They Wished Someone Had Told Them Earlier

We ended every conversation with one more question: "If you could go back and tell yourself one thing before that biggest loss happened, what would it be?"

The answers grouped into four categories:

"I wish I had understood that the cheapest starter is never actually the cheapest option." said by 31 owners in various words.

"I wish I had known that thermal relays stop working correctly in summer heat said by 28 owners.

"I wish I had understood what single phasing actually does to a motor and how fast it happens said by 22 owners.

"I wish I had measured the actual cost of motor failures before making a decision about what protection to buy said by 13 owners.

Every one of these answers points to the same gap: the Indian electrical market sells motor starters heavily but educates buyers almost not at all about what motor protection actually requires in Indian conditions.

What Proper Motor Protection Should Actually Include

Based on what 94 factory owners lost, and based on the three root causes that drove those losses, here is what motor protection for Indian industrial conditions must include.

The overload protection must be temperature-independent. A bimetallic thermal relay is not adequate for Indian industrial and agricultural conditions. The protection system must use electronic or microcontroller-based current sensing that works identically at 25 degrees Celsius and at 55 degrees Celsius. Subtech's MPU (Motor Protection Unit) uses exactly this approach: microcontroller-based current sensing with no thermal element that can be affected by ambient temperature. It cannot give false trips from heat. It cannot be neutralized by increasing a setting.

The single phasing protection must respond within seconds. Not minutes. Not after the thermal relay eventually responds to increased current. The protection must independently monitor all three phases and cut power to the motor within seconds of a phase loss. Subtech's double single-phasing protection does this on both the input side and the output side of the panel.

The contactor must be correctly rated for the actual continuous duty load. Not the next HP class down. The actual rated HP, at the actual ambient temperature, at the actual duty cycle. Subtech's PMC (Pre-Magnetic Contactor) uses a DC coil that eliminates coil burning due to voltage fluctuation and carries a 5-year warranty on the coil. It operates correctly from 140V to 480V, covering the full range of Indian supply conditions.

The panel must have a digital display that shows what is happening. When a fault occurs, the display must show an error code that tells the electrician exactly what protection triggered and why. This alone eliminates the guesswork that leads to relay settings being increased inappropriately. Subtech panels display voltage, current, run hours, and fault codes. Ninety percent of complaints are resolved over the phone when the electrician can read the display.

The One Number Every Factory Owner Should Calculate

Before you decide what to spend on motor protection, calculate this number first.

Add up all your motor-related costs over the last 3 years: motor rewinding, motor replacement, electrician call-outs, and an honest estimate of production value lost during downtime.

Divide that number by 3 to get your annual motor-related loss.

Now compare that number to the cost of replacing your current starters with properly rated protection panels.

For most of the 94 factory owners we spoke to, the protection investment pays for itself within 4 to 8 months of the first prevented motor failure.

The factory owner from Agra who shared his 9.4 lakh figure over 5 years spent 42,000 rupees on new protection. His annual saving based on his previous average: approximately 1,88,000 rupees per year. His payback period was less than 3 months.

These are not theoretical numbers. They are what people told us when we sat in their factories and asked honest questions.

Contact Subtech to get an assessment of your current motor protection setup and a cost-benefit analysis for your specific installation.

Frequently Asked Questions

How do I calculate the real cost of motor failures in my factory?

Add four numbers: motor repair or replacement cost, electrician call-out charges, value of production lost per hour multiplied by downtime hours, and any product loss or quality rejection caused by the unplanned stoppage. Most factory owners significantly underestimate this total because they only count the repair bill and not the production impact.

Is investing in better motor protection worth it for small factories?

The survey data shows that small factories with 10 to 50 workers actually suffered proportionally larger impacts from motor failures than larger factories, because they have fewer backup systems and less capacity to absorb downtime. A small factory losing one motor and 6 production days in peak season can lose a month's profit in a single incident. The protection investment is typically more important, not less important, for smaller operations.

My electrician says our current starters are fine. How do I know if they actually are?

Ask your electrician four specific questions: What is the ambient temperature rating of the overload protection? Has the overload relay setting ever been increased? What happens to the motor if one phase is lost at 3 AM when nobody is present? What error information does the starter display when it trips? If the answers are vague or your starter has no display at all, your protection may not be as complete as assumed.

How often should motor protection panels be checked and serviced?

Digital motor protection panels with microcontroller-based protection require minimal maintenance compared to thermal relay-based systems. A basic annual check covering connection tightness, contactor contact condition, and panel cleanliness is typically sufficient. Thermal relay-based systems should be checked and calibrated every 6 months, and especially before summer begins, because their calibration drifts with temperature and age.