What is the primary function of this part?
The primary function of the Siemens 3VA9978-0AB11 is to act as a trip alarm switch with changeover contacts, designed as an accessory for 3VA4/5/6 circuit breakers.
What type of circuit breakers is this part compatible with?
This part is compatible with 3VA4, 3VA5, and 3VA6 circuit breakers.
What is the rated operational voltage for this part?
The rated operational voltage for the Siemens 3VA9978-0AB11 is 600 V for AC and 250 V for DC.
What is the thermal current limit of this part?
The thermal current limit (Ith) of the Siemens 3VA9978-0AB11 is 10 A.
What are the dimensions of this part?
The Siemens 3VA9978-0AB11 has a width of 14 mm, which corresponds to 2 slots.
What is the degree of pollution and overvoltage category for this part?
The Siemens 3VA9978-0AB11 has a degree of pollution of 3 and an overvoltage category of III.
What is the tightening torque range for the screw-type terminals?
The tightening torque for the screw-type terminals ranges from 0.4 N·m to 0.5 N·m.
What are the operating current ratings for this part at different voltages?
The operating current ratings for the Siemens 3VA9978-0AB11 vary by voltage: at AC-12, it is 10 A for 12 V, 24 V, 48 V, 125 V, and 220/240 V; 6 A for 380/400 V; and 2 A for 600 V. At DC-12, it is 6 A for 12 V and 24 V; 2 A for 48 V; 0.6 A for 110 V; and 0.3 A for 250 V. At DC-13, it is 3 A for 12 V and 24 V; 0.8 A for 48 V; 0.2 A for 110 V; and 0.1 A for 250 V.
What is the wire stripping length for this part?
The wire stripping length for the Siemens 3VA9978-0AB11 is 15 mm (0.6 inches).
What are the certifications associated with this part?
The Siemens 3VA9978-0AB11 has general product approvals including EMC Declaration of Conformity.