415V IF2 AIR CIRCUIT BREAKER RETROFIT
WHIPP & BOURNE CIRCUIT BREAKER
In recognising the customers needs to support old and obsolete circuit breakers, SIM have developed a (RET IF2-AR212S) for the 415V IF2 Whipp & Bourne Circuit Breaker
The retrofit consists of installing a Terasaki AR212S ACB within the existing Whipp & Bourne carriage. The existing switchboard protection can be retained by using a Non-Automatic type ACB or a new programmable protection relay which can be incorporated with the ACB.
The main interlocks have been retained in the modification to prevent the retrofit being installed or removed from the switchboard whilst in the closed position. By carrying out the retrofit this way it alleviates the necessity to modify the main switchboard busbars.
A Cost effective solution which guarantees future support and reliability for many years.
As part of the retrofit package, customers drawings are updated on CAD to the latest standards producing standard drawings for each circuit type.
– Efficient Upgrade For Aging Equipment
– Guaranteed Future Support
– Innovative Method Saves Time & Money
– Updated CAD Drawings
TECHNICAL DATA VACUUM ACB TYPE AR212S
Rated Current : 1250A
690V Symmetrical rms : 50kA
440V Symmetrical rms : 65kA
415V Symmetrical rms : 65kA
690V Asymmetrical Peak : 105kA
440V Asymmetrical Peak : 143kA
415V Asymmetrical Peak : 143kA
Short-Time Withstand : 65kA/1 Sec rms
50kS/3 Sec rms
Mechanical (With Maint.) : 30000
Mechanical (No Maint.) : 15000
Electrical (No Maint. AC 460V) : 12000
Electrical (No Maint. AC 690V) : 10000
Breaking Time : 0.03 Sec Maximum
Spring Charging Time : 10 Sec Maximum
Closing Time : 0.08 Sec Maximum