Siemens Circuit breaker for starter combination, size S2, 32A

Product Overview

Circuit breaker size S2 for starter combination Rated current 32 A N-release 416 A screw terminal Standard switching capacity

Key Features

• Size: S2 (55 mm width)
• Rated Current: 32 A
• Short-circuit Release: 416 A (N-release)
• Connection System: Screw-type terminal
• Number of Poles: 3-pole
• Rated Operational Voltage: Up to 690 V AC
• Rated Frequency: 50/60 Hz
• Application: Starter combination circuit breaker (magnetic only)

Technical Specifications

Standards Compliance:

• IEC 60947-1, EN 60947-1
• IEC 60947-2, EN 60947-2
• IEC 60947-4-1, EN 60947-4-1
• UL 508, UL 60947-4-1
• CSA C22.2 No. 14, CSA C22.2 No. 60947-4-1
• UL 489, CSA C22.2 No. 5
• ATEX, IEC Ex approved

Operating Conditions:

• Ambient Temperature: -20°C to +60°C
• Storage Temperature: -50°C to +80°C
• Degree of Protection: IP20
• Installation Altitude: Maximum 2,000 m above sea level
• Relative Humidity: 10-95% during operation
• Net Weight: 2.293 lb (1.04 kg)

Performance Features:

• Magnetic short-circuit protection (no overload protection)
• Suitable for starter combinations
• Reliable screw terminal connections
• Climate-resistant construction
• Low heat loss design
• Optimized for IE3/IE4 motors

Screw Terminal Connection System

• Tool Required: Standard screwdriver
• Tightening Torque: 3-4.5 N·m for main contacts
• Thread Design: M6 for main contacts
• Vibration Resistant: Secure connection in industrial environments
• Temperature Independent: Consistent connection across temperature ranges
• Reliable Connection: Proven screw terminal technology

Conductor Cross-sections:

• Solid and stranded: 2 x (1 to 35) mm², 1 x (1 to 50) mm²
• Finely stranded with end sleeve: 2 x (1 to 25) mm², 1 x (1 to 35) mm²
• AWG cables: 2 x (18 to 2), 1 x (18 to 1)
• Maximum conductor compatibility for high-current applications

Applications

• Starter combination protection
• Short-circuit protection for motor feeders
• Plant protection applications
• Load feeder protection
• High-current motor protection (up to 15 kW)
• IE3/IE4 motor switching applications
• Direct current switching applications
• Industrial automation and control systems

Motor Power Ratings

• 230V AC: 7.5 kW (10 HP)
• 400V AC: 15 kW (20 HP)
• 500V AC: 15 kW (20 HP)
• 690V AC: 15 kW (20 HP)

Physical Dimensions

• Height: 140 mm (5.51 inches)
• Width: 55 mm (2.17 inches)
• Depth: 149 mm (5.87 inches)
• Package Dimensions: 2.441 x 5.787 x 6.575 inches

Short-Circuit Breaking Capacity

• 65 kA at 400V AC (Icu)
• 65 kA at 480V (UL489/CSA rating)
• Magnetic trip technology for fast response
• Standard switching capacity for reliable operation

Installation

• Mounting: 35 mm DIN rail according to DIN EN 60715
• Side-by-side mounting capability
• Snap-on mounting for easy installation and removal
• Top and bottom terminal arrangement
• Any mounting position acceptable

Compliance & Environmental

• Country of Origin: Germany
• RoHS Compliance: Since 10/15/2014
• UL/CSA Approvals: Available for North American applications
• REACH Regulation: Contains lead >0.1% w/w
• Returnable: Yes
• WEEE Compliance: Take-back obligation applies

Motor Protection Benefits

• Prevents equipment damage from short-circuit conditions
• Protects against overcurrent in starter combinations
• Extends equipment life through precise protection
• High current rating (32A) for high-power applications
• Magnetic trip elements for fast response to fault conditions
• S2 size provides enhanced current handling capacity

Advanced Protection Features

• Magnetic Short-Circuit Protection: Fast response to fault conditions
• Starter Combination Design: Optimized for motor starter applications
• High Current Rating: 32A for high-power motor applications
• Enhanced Breaking Capacity: 416A N-release for maximum safety
• Climate-Resistant Construction: Optimized for demanding environments
• IE3/IE4 Motor Compatibility: Specially designed for energy-efficient motors
• Standard Switching Capacity: Reliable operation across applications

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