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Siemens Energy & Automation, Inc.

iniature circuit breakers to UL 489. M. Siemens Energy & Automation, Inc. Miniature Circuit Breakers to UL 489. What is UL 489?

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Siemens Energy & Automation, Inc.

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  1. iniature circuit breakers to UL 489 M Siemens Energy & Automation, Inc.

  2. Miniature Circuit Breakers to UL 489 • What is UL 489? • UL 489 is the UL Standard for Safety for Molded-case Circuit Breakers, Molded-case Switches and Circuit Breaker Enclosures. The requirements are specifically intended to provide Service Entrance, Feeder and Branch Circuit Protection in accordance with the National Electrical Code, NFPA 70. • The 5SJ4 series of Miniature Circuit Breakers meet the requirements for Branch Circuit or Feeder Protection and are intended to protect electrical wires from catching fire in an application.

  3. 5SJ4...-.HG425SJ4…-.HG41 5SJ41..-.HG40 5SJ4...-.HG4. Mini Circuit Breakers (mCB) There are three variations of the Siemens 5SJ4 Miniature Circuit Breaker Series . . .

  4. 5SJ4110 - 7HG42 a b c 2) d e 5SJ4...-.HG4. Mini Circuit Breakers (mCB) Catalog Number Nomenclature1) a Frame Style b Number of Poles c Rated Current Code2) d Tripping Characteristic Curve eVersion HG40: 240 VAC, Same Polarity HG41: 240 VAC HG42: 480Y / 277 VAC 1) For specific nomenclature designations refer to the 5SJ4…-.HG4. Product Profile 2) Exceptions are 05, 11, 14, 15, & 18

  5. 5SJ4...-.HG41 5SJ4...-.HG42 5SJ4...-.HG40 5SJ41..-.HG42 5SJ4...-.HG4. Mini Circuit Breakers (mCB) • 1-Pole 1-, 2- & 3-Pole • Thermal / magnetic overcurrent protection • Intended for General Use (Branch Circuit Protection) • UL Listed (UL 489) • Certified to Canadian Standards (CSA 22.2 No. 5-02) • cULus to UL File E243414 • Include a manual means for opening a circuit • Not ambient compensated

  6. 5SJ4...-.HG41 5SJ4...-.HG42 5SJ4...-.HG40 5SJ41..-.HG42 5SJ4...-.HG4. Mini Circuit Breakers (mCB) • B, C & D C & D (Trip Characteristics per IEC/EN 60 898) • UL 489 Rated Voltage – HG40 • 240 VAC Max. 1-Pole • 60 VDC Max. 1-Pole • UL 489 Rated Voltage – HG41 • 240 VAC Max. • 60 VDC Max. 1-Pole • 125 VDC Max. 2- & 3-Pole • UL 489 Rated Voltage – HG42 • 277 VAC Max. 1-Pole • 480Y VAC Max. 2- & 3-Pole • 60 VDC Max. 1-Pole • 125 VDC Max. 2- & 3-Pole

  7. 5SJ4…-.HG40 5SJ4…-.HG41 Tripping Characteristic Type In (A) Interrupting Rating Tripping Characteristic Type In (A) Interrupting Rating AC 240 V DC 60/125 V AC 240 V DC 60 V C HSJ 0.3 – 40 A 14 kA 10 kA 0.3 – 63 A NSJ B 14 kA C NSJ 45 – 63 A 10 kA C HSJ 0.3 – 40 A 14 kA 10 kA D HSJ 0.3 – 20 A 14 kA C NSJ 45 – 63 A 10 kA D NSJ 25 – 63 A 10 kA D HSJ 0.3 – 20 A 14 kA D NSJ 25 – 63 A 10 kA 5SJ4…-.HG42 Tripping Characteristic Type In (A) Interrupting Rating AC 480Y V DC 60/125 V C NSJ 0.3 – 40 A 10 kA 10 kA 5SJ41..-.HG42 0.3 – 32 A D 10 kA NSJ 5SJ4...-.HG4. Mini Circuit Breakers (mCB)

  8. 5SJ41..-.HG42 5SJ4...-.HG4. Mini Circuit Breakers (mCB) Technical Specifications

  9. 5SJ4...-.HG4. Mini Circuit Breakers (mCB) Dimensions

  10. Miniature Circuit Breakers per UL • All 5SJ4 Designs have the following features. • Features to UL 489 – • Suitable for Branch Circuit and Feeder Protection Applications • UL Listed and Certified to Canadian Standards (cULus, File E243414, Volume 1, Section 1) • HACR Rated • 40° C Calibration Base (Industrial Applications) • Can be used for “field wiring” applications; AWG 14 to AWG4, Copper (Cu) Only • Suitable for “Reverse Feed” applications • Visible Indicator for ON and OFF/Trip • Finger Safe Design • DIN Rail Mounting (Standard 35 mm) • Identical Wire Screw Connections on Line and Load Sides • Smaller Size than Traditional MCCBs

  11. Miniature Circuit Breakers per IEC • 5SJ4 Miniature Circuit Breakers are also CE marked according to EN 60898 and EN 60947-2 making them suitable for use in International applications. Features include: • 30° C Calibration Base • Maximum Rated Voltage of 440 VAC / 60 VDC per pole (EN 60898) • High Interrupting Rating (Icu) of up to 15,000 Amps (EN 90947-2) • Tripping Characteristics (B, C and D depending on the device selected) • B: Designed for the protection of computers, electronic equipment, … , etc. • C: Designed for general device protection in control circuits and all other miniature circuit breaker systems • D: Designed for high inrush loads

  12. Accessories to UL 489 Accessories for 5SJ4…-.HG4. mCBs

  13. 5ST301.-0HG Auxiliary Contact (AS) 5SJ4 mCB 5ST302.-0HG Fault Signal Contact (FC) 5ST303.-0HG Shunt Trip (ST) 5ST36 Busbar 5ST36 Busbar Accessories Accessories for 5SJ4…-.HG4. mCBs

  14. Picture • Brief Description • Contact Arrangement • Abbrev. • Catalog No. • Signals the mCB’s Trip Mechanism Position • 1NO + 1 NC • 2 NO • 2 NC • Auxiliary Switch (AS) • 5ST3010-0HG 5ST3011-0HG 5ST3012-0HG • Signals the automatic tripping of the mCB & the Trip Mechanism‘s Position • 1NO + 1 NC • 2 NO • 2 NC • Fault Signal Contact (FC) • 5ST3020-0HG 5ST3021-0HG 5ST3022-0HG • Used for the Remote Tripping of a mCB • 110 – 480 VAC • 24 – 60 V AC/DC • Shunt Trip (ST) • 5ST3030-0HG 5ST3031-0HG 5SJ4_HG MCB Accessories Auxiliary Devices to UL 489 UL File No. E321559

  15. 5SJ4_HG MCB Accessories • Auxiliary Switch (AS) and Fault Signal Contact Advantages • Siemens Miniature Circuit Breakers do not have to be derated • Siemens Auxiliary Switch and Fault Signal Contacts are UL Listed and Certified to Canadian Standards to 480 VAC maximum. • Many Competitive Auxiliary Switches and Fault Signal Contacts when used with a MCB require the MCB to be derated to 300 VAC Maximum. • This means that many competitive MCBs DO NOT have Auxiliary Devices available at 480 VAC. • Siemens 1NO + 1NC contacts are separate and can be used at the same time • Many Competitive Auxiliary Switches have a Form C contact. • A Form C contact can be used as a NO or a NC, but not both at the same time.

  16. Selection and Assembly Metal Fastening Strips 5ST30.. Auxiliary Trip Mechanism 5SJ4 MCB Select any 1-, 2- or 3-pole 5SJ4…-.HG4. Miniature Circuit Breaker and ensure that the trip mechanism is in the down position Select any 5ST30..-0HG Auxiliary Accessory and ensure that the trip mechanism is in the down position. Also ensure that the metal fastening strips are moved as far right as possible 5SJ4_HG MCB Accessories

  17. Locating Pin Find the locating pin on the accessory and place it into the locating pin hole in the miniature circuit breaker. Secure both metal fastening strips. 5SJ4_HG MCB Accessories Selection and Assembly

  18. Accessories for 5SJ4…-.HG4. mCBs Auxiliary Devices to UL 489

  19. Shunt trip Auxiliary switch, Fault signal contact Accessories for 5SJ4…-.HG4. mCBs Dimension (mm)

  20. Accessories for 5SJ4…-.HG4. mCBs

  21. Accessories for 5SJ4…-.HG4. mCBs Busbar to UL 4891) UL File No. E321559 All unused busbar terminals must be covered with touch protection cover 5ST3666-1HG.

  22. Accessories for 5SJ4…-.HG4. mCBs Busbar to UL 4891) UL File No. E321559 5ST3666-0HG 5ST3666-2HG 5ST3666-1HG1) 1) All unused busbar terminals must be covered with touch protection covers 5ST3666-1HG.

  23. Accessories for 5SJ4…-.HG4. mCBs Busbar & Connection Terminals to UL 489

  24. Accessories for 5SJ4…-.HG4. mCBs Dimension (mm)

  25. Always cover all exposed busbar terminals with touch protection covers 5ST3666-1HG Insert 3-Pole / 3-Phase Busbar into the terminals of a 3-Pole MCB and tighten the screw terminals of the MCB. Connect one end of terminal connector 5ST3666-2HG to a busbar terminal and the other end to a power conductor and tighten the terminal connector screws. Accessories for 5SJ4…-.HG4. mCBs Application Example: Center Feed using Busbar Terminal Connection 3-Pole Busbar with 3-Pole MCB 5ST3665-1HG

  26. 5ST3665-1HG The busbar and the terminal connectors are rated at 115 A maximum. Using the center feed method allows up to 115A maximum to flow. Accessories for 5SJ4…-.HG4. mCBs Application Example: Center Feed using Busbar Terminal Connection 3-Pole Busbar with 3-Pole MCB The sum of the current per pole in both directions must not be greater than 115 A. Connect the other end of the power conductors to the power source

  27. Insert 3-Pole / 3-Phase Busbar and MCB Terminal Connector into the terminals of a 3-Pole MCB and tighten the screw terminals of the MCB. Accessories for 5SJ4…-.HG4. mCBs Application Example: End Feed using MCB Terminal Connection 3-Pole Busbar with 3-Pole MCB Remember to always cover all exposed busbar terminals with touch protection covers 5ST3666-1HG 5ST3665-0HG Connect one end of a power conductor to the MCB Terminal Connector and tighten the screw. Connect the other end of the conductor to the power source.

  28. Accessories for 5SJ4…-.HG4. mCBs Application Example: End Feed using MCB Terminal Connection 3-Pole Busbar with 3-Pole MCB The busbar and the MCB terminal connectors are rated at 115 A maximum per pole. 115A max. per pole Always cover all exposed busbar terminals with touch protection covers 5ST3666-1HG

  29. iniature circuit breakers to UL 489 M Siemens Energy & Automation, Inc.

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