Moulded Case Circuit Breaker (Thermal Magnetic Adjustable)

Characteristics of Moulded Case Circuit Breaker (Thermal Magnetic Adjustable)
1. ZLM30T/A and ZLM30RT Moulded case circuit breaker (thermal magnetic adjustable) is usually used in low-voltage grid with AC 50Hz, rated operating voltage up to 690V, rated operating current up to 800A.
2. Our moulded case circuit breaker (thermal magnetic adjustable) can be equipped with many accessories, such as under-voltage trip, shunt trip, auxiliary switch, alarm switch, motor operator and rotary handle, among others.
3. Our ZLM30RT-250 moulded case circuit breaker (thermal magnetic adjustable) can offer overload protection and instantaneous protection, through adjusting the operating value of overload current and instantaneous current. The adjustable scope for overload protection in thermal magnetic adjustable breaker is 0.8-1.0In and the adjusting scope for instant protection in distribution type breaker is 6-10In.

Specifications of Moulded Case Circuit Breaker (Thermal Magnetic Adjustable) ZLM30RT-250

Frame (A)		250
Type		ZLM30T/A, RT-250S		ZLM30T/A, RT-250H
Rated current In (A)		63-80,80-100,100-125, 125-160,160-200,225-250		63-80,80-100,100-125, 125-160,160-200,225-250
Number of poles		3	4	3	4
Rated voltage Ue (V)		AC400V
Rated insulation voltage Ui (V)		AC690V
Short-circuit Interrupting Capacity Icu/1cs	AC400V	50/35		80/50
Operation life (cycle)	ON	3000
	OFF	7000
Dimensions (mm)	a	105	140	105	140
	b	165		165
	c	68		91
	ca	92		115
Weight (kg)		5.7	7.5	5.7	7.5
Electrical-operation device (MD)		●		●
External rotary handle		●		●
Automatic tripping device		Thermal-magnetic		Thermal-magnetic