Fuse protection

External protection, CE-compliant

WARNING

Fire hazard due to overload of the connection cable!

The following data refer to stand-alone devices. Please note the sum current of all connected devices in a multi-axis system.
The recommended fuses are designed for line protection. The servo drives feature integrated self-protection.

Single-phase:

	AX5101	AX5103	AX5106	AX5201	AX5203	AX5206
AC supply *)	10 AT	10 AT	16 AT	10 AT	16 AT	20 AT
24 V supply	5 AT
Braking resistor	electronic

*) Application class "gG" mains fuses according to IEC 60269 or "C" type automatic circuit-breakers must be used.

Three-phase:

	AX5101	AX5103	AX5106	AX5112	AX5118	AX5125	AX5140	AX5201	AX5203	AX5206
AC supply *)	6 AT	6 AT	10 AT	20 AT	35 AT	35 AT	50 AT	10 AT	10 AT	20 AT
24 V supply	5 AT
Brake resistor	electronic

*) Application class "gG / gL" mains fuses according to IEC 60269 or "C" type automatic circuit-breakers must be used.

Internal protection, CE-compliant

Circuit	Fuse
24 V system voltage	3.4 AF
24 V peripheral voltage	electronic
Braking resistor	electronic

External protection, UL-compliant

The integrated protection against short circuit is no substitute for the external mains protection. The mains protection must comply with the vendor's specification and the national and international regulations and laws.

Can be used in power supply systems with a maximum current carrying capacity of 18000 A at 480 V.

For alternatives to UL Class RK5 fuses, be sure to refer to UL Standard UL 508 A, Chapter SB4.2.3, Exception No. 1. For further questions regarding UL fuses, please contact the appropriate certificate authority.

Single-phase:

	AX5101	AX5103	AX5106	AX5201	AX5203	AX5206
AC supply (max.) *)	6 A	12 A	20 A	12 A	20 A	20 A
24 V supply (max.)	3 A
Braking resistor	electronic

*) Only UL approved line fuses are to be used.

Three-phase:

	AX5101	AX5103	AX5106	AX5112	AX5201	AX5203	AX5206
AC supply (max.) *)	6 A	12 A	20 A	20 A	12 A	20 A	20 A
24 V supply (max.)	3 A
Braking resistor	electronic

*) Only UL-approved mains fuses must be used.

NOTICE

AX5112!

Protection only by UL-approved fuses with a nominal current of 20 A and 480 V min.

Internal protection, UL-compliant

Circuit	Fuse
24 V system voltage	3.4 AF
24 V peripheral voltage	electronic
Braking resistor	electronic

External drive system protection

Rule of thumb:	Determine the nominal sum currents of the devices, multiply with the correction factor and round up to the next higher standard level.
Example:	1 x AX5103 + 2 x AX5201 + 2 x AX5203 3 A + 6 A + 12 A = 21 x 1.1 = 23.1 A --> selected 25 A

NOTICE

Special requirements for a drive system

Please consult our applications department with respect to the special requirements for a drive system with UL approval.

Residual current circuit breaker

Servo drives with built-in mains filters generate a small leakage current (fault current) due to the capacitors in the filter. This fault current is responsible for malfunctions in standard residual current circuit breakers. For this reason so-called AC/DC sensitive residual current circuit breakers must be used, which also take into account DC currents.