Pole mounted air load break switch

Breaking Capacity
High Voltage Circuit Breakers
Electric Type
Normal Type Circuit Breaker
Arc-extinguishing Medium
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RTS type Outdoor on load break switch (switch disconnector) are destined to switch stub lines and ring main lines or transformers( It can be equipped with MV HRC fuse links as short circuit protection function) or for switching under on load conditions.


RTS type pole mounted on load break switch is adopt a air pressure extinguish technology, which is old design technology,It is widely used in non-extreme big fault network or not important area. like rural grid,etc..


RTS type pole mounted load break switch is a less electrical life switch, It can not be used for frequent operation area. (if you need frequent operation LBS pls choose RLW type VLBS) .


RTS type switch comply with IEC/IEEE and DVE-recommendation standards.

Especially comply with DIN VDE 0670 part 3 and IEC publication IEC-60265, IEC62271-103.


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Technical data

No. Item Unit Data
1 Rated voltage kV 12 24 36
2 Rated frequency Hz 50/60
3 Rated current A 200/400/630
4 Rated short circuit withstand current (1S) kA 20
5 Rated peak withstand current (1S) kA 50
6 Rated making current kA 31.5-50


Rated insulation level(HV)
lightning impulse
75/85 125/145 170/195
Power frequency withstand 45 55/75 75/100

Rated short circuit breaking capacity cos. Φ(0.7)
Without maintenance of contacts

- for active circuits
20 breakings

630 630 400
30 breakings 400 400 300
40 breakings 300 300 250
50 breakings 250 250 170
75 breakings 170 170 160
120 breakings 110 110 110
200 breakings 65 65 65
280 breakings 50 50 50


++++Service environment
a) Air temperature: Maximum temperature: +75℃; Minimum temperature:-45℃
b) Humidity: Monthly average humidity 95%; Daily average humidity 90% .
c) Altitude above sea level: Maximum installation altitude: 2500m
d) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.

e) No frequent violent shake

Features and benefits
• Compact design
• All steel parts either in stainless steel or hot-dip galvanized
• Solid and stable base frame
• Main contact with icing protection
• Insulators available in porcelain or alternatively in silicone
• Minimal sag for the line-connection thanks to the two fixed terminals
• Completely maintenance antirust AL alloy -Arc chamber
• Switching-off procedure without external arc
• Short circuit making capacity under specific conditions possible
• Fixing on the supporting structure either by clamping (free setting) or screwing (holes in the base frame)
• Easy on-site installation and setting
• High reliability: up to 1’000 cycles (depending on the making current)
• All conducting parts either silver, nickel or tin-plated
• Practically maintenance-free

Drawing and dimension

Pole mounted air load break switch

Pole mounted air load break switch

Pole mounted air load break switch


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