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M iniature circuit breakers to UL 489

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1 M iniature circuit breakers to UL 489
On this page, only the title and product photos should be changed. 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...-.HG4. Mini Circuit Breakers (mCB)
5SJ4...-.HG SJ4…-.HG41 5SJ41..-.HG40 There are three variations of the Siemens 5SJ4 Miniature Circuit Breaker Series . . .

4 5SJ4...-.HG4. Mini Circuit Breakers (mCB)
Catalog Number Nomenclature1) 5SJ HG42 a b c 2) d e CHECK THE VOLTAGE RATING of the 5SJ4 miniature circuit breaker against the system voltage. If the 5SJ4 has a slash voltage rating, i.e. 480Y/277 volts, be sure it will be properly applied. For instance, a 5SJ4…-.HG42 rated 480Y/277 volts can not be used on a 480 volt high resistance grounded wye system, 480V corner grounded delta system, or a 480V ungrounded system. It can only be applied on a 480/277 volt solidly grounded wye system. a Frame Style b Number of Poles c Rated Current Code2) d Tripping Characteristic Curve e Version HG40: 240 VAC, Same Polarity HG41: 240 VAC HG42: 480Y / 277 VAC 1) For specific nomenclature designations refer to the 5SJ4…-.HG4. Product Profile ) Exceptions are 05, 11, 14, 15, & 18

5 5SJ4...-.HG4. Mini Circuit Breakers (mCB)
1-Pole , 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 5SJ41..-.HG42

6 5SJ4...-.HG4. Mini Circuit Breakers (mCB)
B, C & D C & D (Trip Characteristics per IEC/EN ) UL 489 Rated Voltage – HG40 240 VAC Max. 1-Pole 60 VDC Max. 1-Pole UL 489 Rated Voltage – HG41 240 VAC Max. 125 VDC Max. 2- & 3-Pole UL 489 Rated Voltage – HG42 277 VAC Max. 1-Pole 480Y VAC Max. 2- & 3-Pole 5SJ41..-.HG42 CHECK THE VOLTAGE RATING of the 5SJ4 miniature circuit breaker against the system voltage. If the 5SJ4 has a slash voltage rating, i.e. 480Y/277 volts, be sure it will be properly applied. For instance, a 5SJ4…-.HG42 rated 480Y/277 volts can not be used on a 480 volt high resistance grounded wye system, 480V corner grounded delta system, or a 480V ungrounded system. It can only be applied on a 480/277 volt solidly grounded wye system.

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

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

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 and EN 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 ) 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 for 5SJ4…-.HG4. mCBs
Accessories to UL 489 Product Description Planned for… According to norm Auxiliary switches 1NO + 1NC 2NO 2NC Available Now! UL 489 Fault signal contacts Shunt trips 24 – 60 V AC/DC 110 – 480 V AC Busbars 1, 2 and 3 poles with 6,12 or 18 terminals Feeder terminals  Terminals up to 115 A Busbar touch protection

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

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

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 Metal Fastening Strips
5SJ4_HG MCB Accessories Selection and Assembly 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 Metal Fastening Strips 5ST30.. Auxiliary Trip Mechanism

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

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

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

20 Accessories for 5SJ4…-.HG4. mCBs

21 Accessories for 5SJ4…-.HG4. mCBs
Busbar to UL 4891) Length (mm) Order No. Busbars to UL 4891) For use with all 5SJ4…-.HG4. Fixed lengths, cannot be cut. 1-Pole Busbar For 6 MCB, 1-Pole For 12 MCB, 1-Pole For 18 MCB, 1-Pole 2-Pole Busbar For 3 MCB, 2-Pole For 6 MCB, 2-Pole For 9 MCB, 2-Pole 3-Pole Busbar For 2 MCB, 3-Pole For 4 MCB, 3-Pole For 6 MCB, 3-Pole 100 205 310 5ST3663-0HG 5ST3663-1HG 5ST3663-2HG 5ST3664-0HG 5ST3664-1HG 5ST3664-2HG 5ST3665-0HG 5ST3665-1HG 5ST3665-2HG 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 Order No. Connection terminal to UL 489 For use only with SJ4…-.HG4. Infeed to MCBs 35mm2 (14 – 2 AWG) Infeed to Busbars 50 mm2 (14 – 1 AWG) Touch protection covers for Busbars to UL 489 3 x 1 pin 5ST3666-0HG 5ST3666-2HG 5ST3666-1HG 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 Accessories for 5SJ4…-.HG4. mCBs
Application Example: Center Feed using Busbar Terminal Connection Pole Busbar with 3-Pole MCB 5ST3665-1HG 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.

26 Connect the other end of the power conductors to the power source
Accessories for 5SJ4…-.HG4. mCBs Application Example: Center Feed using Busbar Terminal Connection Pole Busbar with 3-Pole MCB The sum of the current per pole in both directions must not be greater than 115 A. 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. Connect the other end of the power conductors to the power source

27 Accessories for 5SJ4…-.HG4. mCBs
Application Example: End Feed using MCB Terminal Connection Pole Busbar with 3-Pole MCB Remember to always cover all exposed busbar terminals with touch protection covers 5ST3666-1HG 5ST3665-0HG 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. 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 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 M iniature circuit breakers to UL 489
On this page, only the title and product photos should be changed. Siemens Energy & Automation, Inc.


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