Technical illustration. Published product/series reference; confirm the exact configuration and supplied appearance. Images are for reference only. The supplied part’s appearance may differ.
1SAM401923R1003 — Main line branch terminal
Electrical & controlsPart number: 1SAM401923R1003
ABB 1SAM401923R1003 (S2-M3-50) is a three-phase power infeed block with screw terminals. It is listed for the MS165 and MO165 motor starter ranges and has a rated current of 125 A under IEC and 120 A under UL/CSA.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAM401923R1003 |
| Category | Electrical & controls |
| Product Net Width | 54 mm |
| Product Net Height | 65 mm |
| Product Net Depth / Length | 59.3 mm |
| Product Net Weight | 0.172 kg |
| Rated Operational Voltage | 690 V AC |
| Rated Operational Current (I e ) | 125 A (IEC) |
| Number of Poles | 3 |
| Degree of Protection | IP20 |
| Terminal Type | Screw terminals |
| Connecting Capacity Main Circuit | Flexible: 1 × 10–50 mm² |
| Tightening Torque | Main Circuit 6 N·m |
| Wire Stripping Length | Main Circuit 16 mm |
| Maximum Operating Voltage UL/CSA | 600 V AC |
| Connecting Capacity Main Circuit UL/CSA | Flexible or stranded: 1 × AWG 8–0 |
| Tightening Torque UL/CSA | Main Circuit 54 in·lb |
| Ambient Air Temperature | Operation: −25 to +60 °C when mounted singly; −25 to +40 °C with PS2-xxx-125 busbar |
| Published component type | Main line branch terminal |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Rated Operational Current UL/CSA | 120 A |
Catalogue information may contain errors or be out of date. Full specifications and verified details are available on request. Confirm the part number and equipment fitment with us before ordering.
Product questions
What is ABB 1SAM401923R1003 used for?
ABB 1SAM401923R1003 is the S2-M3-50, a three-phase power infeed block with screw connections. It is a feeder accessory, not a motor starter.
Which motor starters are listed for the S2-M3-50 feeder block?
ABB lists the S2-M3-50 for the MS165 and MO165 ranges. Confirm the exact starter model and configuration before ordering; provide its serial number if the identification is uncertain.
What are the current ratings for this infeed block?
The S2-M3-50 is rated at 125 A under IEC and 120 A under UL/CSA. Check the complete assembly and applicable installation requirements when selecting components.
What conductor size does the S2-M3-50 accept?
The main-circuit flexible conductor range is one conductor of 10–50 mm²; ABB also lists one flexible or stranded conductor of AWG 8–0 for UL/CSA. Confirm conductor type and installation requirements for the intended application.
Does using the S2-M3-50 with a PS2 busbar affect its operating temperature?
Yes. ABB lists an operating ambient range of −25 to +60 °C for single mounting, but −25 to +40 °C when used with a PS2-xxx-125 busbar.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.