Overview
The ABB S1-M1-25 power infeed block is a flat-mounted, three-phase feeder terminal designed to connect larger cable cross-sections to ABB MS116 and MS132 series manual motor starters. With a rated current of 65A and operational voltage of 690V AC, this terminal block provides a reliable interface for distributing 3-phase power in industrial motor control systems.
Key Features
- 3-Phase Configuration: Supports simultaneous connection of all three power phases.
- Cable Capacity: Accepts rigid conductor cross-sections up to 25mm², enabling efficient power distribution without multiple parallel connections.
- Flat Mounting Form: Compact profile allows direct mounting on MS116 and MS132 starters without additional hardware.
- Screw Terminal Connections: Secure, field-serviceable terminal design with straightforward wiring.
- Wide Operating Range: Functions reliably in ambient temperatures from -25°C to +70°C.
- Industrial Certifications: Meets IEC/EN 60947-1 and UL 60947-1 standards; RoHS, CSA, cUL, and CE compliant.
Technical Specifications
- Rated Current: 65A
- Rated Voltage: 690V AC / 250V DC
- Cable Cross-Section: Up to 25mm² (rigid conductor)
- Terminal Type: Screw-clamp, main circuit
- Mounting Form: Flat
- Degree of Protection: IP20
- Tightening Torque: 2.5 N·m (main circuit)
- Operating Temperature: -25°C to +70°C
- Storage Temperature: -50°C to +80°C
- Dimensions: 38mm (H) × 44mm (W) × 25.5mm (D)
- Weight: 0.038 kg
- Standards: IEC/EN 60947-1, IEC/EN 60947-4-1, UL 60947-1, UL 60947-4-1
Typical Applications
The S1-M1-25 is used in:
- Three-phase motor starter assemblies with ABB MS116/MS132 manual starters.
- Industrial machinery requiring secure 690V power distribution.
- Control panels and switchboards where space and current capacity are critical.
- Machine tools, pumps, compressors, and other medium-voltage motor applications.
Compatibility & Replacements
The ABB S1-M1-25 is designed exclusively for ABB MS116 and MS132 manual motor starters. Alternative internal product code: 1SAM201907R1101. This terminal block serves as an OEM accessory and is not directly interchangeable with other manufacturers’ blocks. For upgraded configurations or higher current requirements, ABB offers the S1-M2-25 variant with modified geometry. Verify compatibility with your specific starter model before ordering.
