ABB MS116-1.6 1SAM250000R1006 Manual Motor Starter – Critical Spare Part for Industrial Control Systems

Technical Dossier

Product Details And Specifications

ABB MS116-1.6 1SAM250000R1006 Manual Motor Starter – Secure Your Critical Spare Before the Line Goes Down

When a motor protection circuit breaker fails inside a live production environment, the clock starts immediately. Sourcing a replacement through standard distribution channels can take days or weeks. For facilities running legacy control panels built around ABB's MS116 series, that delay translates directly into lost production output. A single unplanned line stoppage in a mid-scale manufacturing facility routinely costs between $50,000 and $500,000 USD per day in lost throughput, labor waste, and contractual penalties. The ABB MS116-1.6 (part number 1SAM250000R1006) is a compact, field-proven manual motor starter rated for motor protection in the 1.0–1.6 A current range. DriveKNMS maintains verified stock of this component specifically to serve facilities that cannot afford to wait.

Technical Specifications

Solving the Critical Spare Parts Problem in Industrial Control Systems

The ABB MS116 series has been a standard component in motor control centers (MCCs), pump control panels, conveyor drive cabinets, and HVAC control systems for over two decades. Its compact footprint and reliable thermal-magnetic trip mechanism made it the default choice for panel builders across Europe, Asia, and the Americas throughout the 2000s and 2010s. Thousands of installed panels still depend on this exact form factor.

The practical problem is not that the MS116-1.6 has been discontinued — it has not. The problem is that authorized distributors frequently carry insufficient buffer stock for low-amperage variants, and lead times from ABB's standard supply chain can stretch to 8–16 weeks during periods of high demand or component shortages. For a facility with a failed motor starter in a critical pump or conveyor application, a 16-week lead time is operationally equivalent to a discontinued part.

Maintaining a local buffer stock of MS116-1.6 units is the lowest-cost insurance policy available to a maintenance manager responsible for aging control infrastructure. The cost of holding two or three spare units is measured in hundreds of dollars. The cost of a single unplanned stoppage waiting for a replacement is measured in multiples of that figure — every hour.

Facilities that have extended the operational life of their existing motor control panels by 5 to 10 years beyond the original design horizon consistently report the same strategy: they identified the ten to fifteen components most likely to fail, secured a verified local stock of each, and established a direct relationship with a specialist supplier capable of sourcing hard-to-find variants on short notice. DriveKNMS exists to serve that function.

Condition & Reliability Assurance

Every MS116-1.6 unit shipped by DriveKNMS passes a structured 5-step inspection protocol before dispatch:

• Step 1 – Visual and mechanical inspection: Housing integrity, handle operation, and terminal condition are checked against OEM reference standards. Units with cracked housings, deformed terminals, or seized trip mechanisms are rejected.
• Step 2 – Bimetal element assessment: The thermal trip element is inspected for signs of heat stress or prior overload events that may have altered calibration. Units showing evidence of sustained overload are quarantined.
• Step 3 – Contact surface examination: Main contact surfaces are inspected under magnification for pitting, arc erosion, or oxidation that would affect contact resistance and long-term reliability.
• Step 4 – Trip mechanism functional test: Manual trip and reset function is verified. The magnetic instantaneous trip response is confirmed operable.
• Step 5 – Firmware and label verification: Part number label (1SAM250000R1006) and current setting markings are cross-referenced against ABB's published documentation to confirm authenticity and correct variant.

Units that pass all five steps are individually bagged, labeled with inspection date and technician reference, and shipped in anti-static protective packaging.

Key Features for System Maintenance

• Drop-in replacement: The MS116-1.6 is dimensionally and electrically identical to all prior units of the same part number. No panel modification, re-wiring, or re-programming is required. Swap the failed unit, reset the current setting dial to the motor nameplate FLA, and restore power.
• No engineering rework: Replacing a failed MS116-1.6 with a verified OEM unit avoids the engineering cost and downtime associated with retrofitting an alternative motor protection device with a different footprint or terminal arrangement.
• Accessory compatibility preserved: The MS116 series accepts ABB's standard auxiliary contact blocks, shunt trip coils, and undervoltage releases. A like-for-like replacement maintains full compatibility with any accessories already installed on the failed unit.
• Regulatory compliance maintained: Using the correct OEM replacement part preserves the panel's original CE, UL, or other regional certification status. Substituting a non-equivalent device may require re-certification of the panel assembly.

FAQ

Q: What warranty applies to MS116-1.6 units supplied by DriveKNMS?
A: All units carry a 12-month warranty against defects in materials and workmanship from the date of shipment. Warranty claims require return of the suspect unit for inspection.

Q: Are these new or refurbished units?
A: DriveKNMS supplies both new-in-box OEM units and professionally inspected surplus stock, depending on current inventory. The condition of each unit is stated explicitly on the invoice and packing documentation. We do not mix conditions within a single order without prior written agreement.

Q: How should a facility approach long-term spare parts planning for motor control panels?
A: Identify every motor starter and circuit breaker in the panel by part number and current setting. Prioritize spares for motors driving critical processes — cooling water pumps, compressors, conveyor drives — where a failure causes an immediate production stop. For each critical position, holding a minimum of one spare unit on-site is standard practice. For facilities with more than ten identical units installed, a ratio of one spare per five installed units is a reasonable starting point. Contact DriveKNMS to discuss volume pricing for planned spare parts programs.

Q: Can DriveKNMS source other variants in the MS116 series?
A: Yes. The MS116 series covers current ranges from 0.1 A to 16 A across multiple variants. Contact us with your full part number or current setting requirement.