Best Price Electrical High Performance 24kv Air Load Break Switch with Fuse

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Model NO.: NALF
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: Insert
• Structure: Load Break Switch
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Overcurrent Protection
• Certification: ISO9001-2000, CE, ISO14001
• Rated Voltage: 24kv
• Rated Current: 630A, 1250A
• Mechanism: Spring
• Mechanical Life: 2000
• Rated Frequency: 50/60Hz
• Standard: IEC62271, 60625
• Transport Package: Carton/Wooden
• Specification: base, contacts, contacts base
• Trademark: TENLEE
• Origin: China
• HS Code: 853590090
• Production Capacity: 500sets/Month

Product Description

 

Product Description

General introduction
NAL load break switch and NALF load break switch-fuse combination, are high voltage and high performance load break switch that combines gas pressure arc extinguishing and gas generation arc extinguishing. So far, more than 600,000 units have been installed and put into use around the world. 
NALF load break switch- fuse combination has the advantages of load break switch and fuse. Load break switch can break any load current up to its rated breaking current. The fuse and its impact device break 
any overcurrent up to the rated short circuit breaking current.

Applications:
The main areas of application of NAL/NALF switch-disconnectors are as:

• Line and transformer switch in medium voltage power distribution system
• Electrical motor switch
• Capacitor switch

certificate
ISO 9001, ISO14001 
standards
IEC 60625, 62271-105, ANSI C37.20.4, GOST 1T16.3-96, GOST 17717-79, CSA C22.2 No.193

Detailed Photos

structure

Indoor switch-disconnector type NAL with earthing switch type E
1 - switch disconnector 
2 -  opening side
3 - closed position
4 - open position
5 -  pivot side
6 - closed position
7 - earthing switch
8 - open position

 

 

Product Parameters

 
 

Rated voltage        kV		12	17.5	24	36
Rated frequency       Hz		50/60
Rated current         A		400/630/1250			630/8 00
Lightning impulse withstand voltage KV	Phase‐phase/phase‐ earth	75	95	125	170
	Across           isolating distance	85	110	145	195
1     min     power      frequency withstand voltage KV	Phase‐phase/phase‐ earth	42	45	55	80
	Across           isolating distance	42	60	70	88
Rated short circuit making current (peak)KA		67	50	50	50
Rated peak withstand voltage     KA		82	82	82	66
Short time withstand voltage      KA/S		31.5/1 25/2 20/3	31.5/ 1 25/2	31.5/ 1 25/2 16/3	25/2
Rated active load breaking current      A		400/630/1250			630/8 00
Max. breaking capacity in co‐operation with fuses     A		1600	1600	900	300
Mainly inductive breaking capacity cosφ= 0.15       A		16	16	16	16
Max fuse current     A		125	125	80	40
Pole distance     mm		150, 170, 210	170, 210	170*, 235, 275	360
Mechanical life          times		More than or equal to 2000
Manual operation, manual operation with shunt, motor operation and motor operation with shunt are optional.

*with insulating barriers

 

Packaging & Shipping

 

Company Profile

  
Combining manufacturing experience, new technology and industrial knowledge, TENLEE aims to build advanced power distribution and protection systems. 
TENLEE is specialized in manufacturing a comprehensive range of solutions from 12kv to 40.5kv for indoor/outdoor systems: gas insulated switchgears 
ring main unit
sf6 free switchgears
vacuum circuit breakers
sf6 circuit breakers
reclosers 
load break switches
disconnectors
distribution transformers/power transformers
substations 
 

FAQ

1. What is the delivery date?
Usually within a month for a HQ.
2. Do you have tyoe tests?
Yes, we have type test in China and we also pass type test in Europe. 
3. Do you have other voltage ranges?
Yes, we have 12kv, 24kv and 36kv.