Rajdhani Enterprises supplies Oil Circuit Breaker - OCB with Heavy Duty Contacts. Rajdhani Enterprises has obtained ISO 9001:2000 certifications. Oil Circuit Breaker - OCB with Heavy Duty Contacts is a non draw out oil immersed manually operated device. Oil Circuit Breaker - OCB with Heavy Duty Contacts has been provided in 100 amps to 1250 amp. This OCB with heavy duty contacts has been provided in COCBN type. These OCB devices are ideal for industrial and agricultural applications.