PBS 3

option of fuse link state indication by neon indicator tube
labelling area on bus bar terminals acces covers
labelling clip
bottom terminal shroud labelling area

Item
fuse-base size	-
Rated thermal current I_th	A
Rated voltage U_n	V
Rated insulation voltage U_i	V
Rated frequency	Hz
rated power dissipation	W
peak current	kA
Mechanical durability	-
weight	kg
Protection degree	IP
Size of fuse links	-

Item	PBS 3
fuse-base size	-	3
Rated thermal current I_th	A	630
Rated voltage U_n	V	690
Rated insulation voltage U_i	V	1000
Rated frequency	Hz	50-60
rated power dissipation	W	60
peak current	kA	100
Mechanical durability	-	1000
weight	kg	5,00
Protection degree	IP	20*
Size of fuse links	-	3

Silver plated contacts provide low power loss. Depending on clamp type,
PBS fuse bases enable user to connect circular or sector-shaped cables or cables with lug terminals. PBS fuse bases of size 1-3 could be equipped with additional fuse link shrouds providing protection degree of IP20. Additionally offered adapters enable to install PBS fuse bases of different sizes on common bus bar system.

Application

PBS fuse bases are designed for the distribution of electricity and protection against short circuits and overloads in three phase alternative current circuits with maximum operating voltage of 690 V. They are intended for direct installation on horizontal or vertical bus bar system. Due to their modern and compact design installing is easy and gives much saving of space in substations and distribution boards. Each type is suitable for top cable terminal connection when installed on horizontal bus bar system. Removal of the fuse link provides clearly noticeable, large isolating distance in the circuit. Easy installation of earthing devices is another advantage.

Operating conditions

to be installed in the room free of any dust, aggressive or explosive gases
altitude up to 2000 meters above sea level
outdoor - in cabinets with protection degree > IP 34
ambient temperature from -25°C to +55°C - but in case of use of disconnectors in temperature from +41°C to +45°C current value Ith should be reduced by 5% and within temperature range of +46°C to +55°C current value I_th should be reduced by 10% ,
relative humidity of the air should not be higher than 50% at temperature of +40°C

Versions

Version		Designation	Part number
PBS 3/630 A	V-shaped cable terminal, 3 x V-terminal clamp (70 - 300 SW)	PBS 3-V	63-811639-021
PBS 3/630 A	V-shaped cable terminal, 3 x V-terminal clamp (70 - 300 SW) , 3 x fuse link shroud	PBS 3-V-O	63-811720-021
PBS 3/630 A	A M12 screw terminal, 3 x M12 screw	PBS 3-M	63-811639-041
PBS 3/630 A	M12 screw terminal, 3 x M12 screw, 3 x fuse link shroud	PBS 3-M-O	63-811720-041
PBS 3/630 A	V-shaped cable terminal, 3 x double V-terminal clamp (2 x 50 - 240 mm²)	PBS 3-2V	63-811639-061
PBS 3/630 A	V-shaped cable terminal, 3 x double V-terminal clamp (2 x 50 - 240 mm²), 3 x fuse link shroud	PBS 3-2V-O	non-standard
PBS 3/630 A	left side bus bar terminal	PBS 3-NL	63-811673-021
PBS 3/630 A	left side bus bar terminal, 3 x fuse link shroud	PBS 3-NL-O	non-standard
PBS 3/630 A	right side bus bar terminal	PBS 3-NR	63-811673-041
PBS 3/630 A	right side bus bar terminal, 3 x fuse link shroud	PBS 3-NR-O	non-standard

PBS 3-V

PBS 3-V-O

PBS with double V-terminal clamps - 2 x 240 mm²

PBS with lateral bus bar terminal

Clamps

Designation	PBS 3-V (630 A)		PBS 3-M (630 A)	PBS 3-2V (630 A)		PBS 3-NL/NR
Clamp	V-terminal clamp 70-300 SW		M12 screw terminal	HS 2/50-240		M12 screw
Picture of clamp
Cross-section of cable conductors	V-terminal clamp to direct fixing of conductor with bare end with cross-section:		cable terminal	V-terminal clamp to direct fixing of two conductors with bare end with cross-sections:		lateral bus bar terminal: left/right side
	- 50- 120mm²	- 70 - 150mm²		- 35- 150mm²	- 35 - 185mm²
	- 70 - 240 mm²	- 95 - 300 mm²		- 50 - 185 mm²	- 50 - 240 mm²
Tightening torque	30 Nm		56 Nm	40 Nm		56 Nm
Bus bars of maximum width of 40 mm and maximum thickness of 8 mm can be fixed to M type screw clamps when protective barrier between phases is applied.