Siemens 5SJ4104-7HG40 Miniature Circuit Breaker 1P 4A C 14kA 240V UL489

The Siemens 5SJ4104-7HG40 (MLFB: 5SJ4104-7HG40) is a 1-pole miniature circuit breaker from the SENTRON 5SJ4 range, rated 4A with tripping characteristic C and a short-circuit breaking capacity of 14kA at 240V AC per UL 489. Designed for infrastructure and industry applications, it provides reliable overcurrent and short-circuit protection in a compact 70mm depth format.

Technical specifications:

• MLFB: 5SJ4104-7HG40
• Manufacturer: Siemens
• Product line: SENTRON
• Design: Miniature circuit-breaker 5SJ4
• Number of poles: 1 (1P)
• Rated current: 4A at 30°C and 40°C
• Tripping characteristic: C (Ii = 7.5 x In)
• Operating voltage (AC, UL 489): 240V / 120V max
• Operating voltage (DC): 60V max
• Insulation voltage (Ui): 440V AC
• Breaking capacity (UL 1077 / CSA): 14kA
• Breaking capacity (IEC 60947-2): 15kA
• Breaking capacity (EN 60898): 10kA
• Power loss per pole: 1.8W
• IP rating: IP 0 in handle range
• Operating temperature: -25°C to +55°C
• Storage temperature: -40°C to +75°C
• Dimensions (WxHxD): 18 x 90 x 70 mm
• Installation depth: 70 mm
• Net weight: 162g
• Mounting: Standard DIN rail
• Mounting position: Any
• Terminals: Combined terminals top and bottom; tightening torque 3.5 Nm
• Conductor cross-section: 0.75 mm² to 25 mm²
• Standards: IEC/EN 60947-2, UL 489, CSA C22.2 No. 5-02
• Mechanical service life: 10,000 operating cycles (typical)
• Overvoltage category: 3
• Degree of pollution: 3

Features and benefits:

• Halogen-free, silicon-free construction suitable for demanding environments
• Touch protection included for safe handling during installation
• Sealable design supports tamper protection and compliance sealing
• Compatible with supplementary devices for extended functionality
• Suitable for both AC and DC circuits within rated limits
• Equal polarity design per UL 489 requirements

Applications:

• Branch circuit protection in industrial control panels rated for North American markets
• Overcurrent protection in infrastructure switchboards and distribution boards
• Machine and equipment protection where UL 489 certification is required
• DC circuit protection up to 60V in battery or control systems

Compliant with IEC/EN 60947-2, EN 60898, UL 489, and CSA C22.2 No. 5-02. Part of the Siemens SENTRON range.

Also known as: Siemens 5SJ4104-7HG40, Siemens SENTRON 5SJ4 1P 4A MCB, Siemens miniature circuit breaker UL489 14kA.