FSU

Self-regulating heating cable for high temperatures
250°C: maximum tolerance temperature with both powered and unpowered cable
Automatically varies power output as temperature changes
Up to 90W/m at 10°C
Does not produce dangerous overheating or deterioration even when overlaid

Notes on operation:

Maximum tolerance temperature with powered and unpowered cable: 250°C
Minimum installation temperature: -40°C
Minimum operating temperature: -65°C
Power supply voltage: 220-277 V a
W/m available: 15, 30, 45, 60, 75

Examples of application:

Temperature maintenance of even highly corrosive fluids at high temperatures
Antifreeze function of products with high design temperatures
Installation in zones with explosion and fire hazards (ATEX)

Temperature classes:

15, 30, 45 and 60 W/m

T3 (200°C)

75 W/m

T2 (300°C)

Model	Nominal dimensions (mm)	Minimum bending radius	Safe zone cable gland	ATEX cable gland
FSU NF	12,1 x 5,4	35mm	M25	M20
FSUw NF	14,4 x 5,6	35mm	M25	M25

FSU N
Version with metal mechanical protection sleeve and earthing braid for explosion-proof zones

FSU(w) NF

Version with metal mechanical protection sleeve and earthing braid and subsequent fluoropolymer coating for explosion-proof zones and in the presence of highly corrosive vapours and solutions.

Maximum circuit length in metres depending on the size of the circuit breaker used and 230V ac power supply:

Model	Starting temperature	10A	16A	20A	32A	50A
15FSU	10°C	76	122	154	172	172
	0°C	70	112	140	172	172
	'-20°C	62	98	122	172	172
	'-40°C	52	82	102	164	172
30FSU	10°C	52	82	102	122	122
	0°C	46	74	92	122	122
	'-20°C	40	66	82	122	122
	'-40°C	34	54	68	110	122
45FSU	10°C	38	62	76	100	100
	0°C	34	56	70	100	100
	'-20°C	30	50	62	98	100
	'-40°C	22	34	44	70	100
60FSU	10°C	30	50	62	86	86
	0°C	28	44	56	86	86
	'-20°C	20	32	40	62	86
	'-40°C	12	18	24	38	60
75FSU	10°C	22	34	44	70	76
	0°C	16	26	34	54	76
	'-20°C	12	18	24	38	60
	'-40°C	8	12	14	22	36

With differential circuit breaker protection 30 mA curve C according to IEC60898

FAILSAFE FSU is a self-regulating heating cable with semi-conductive matrix suitable for high operating temperatures up to 250°C.
Its inherent ability to self-limit its temperature to a value below the maximum allowed by the materials used in its construction allows it to be used without any need for thermostatic control. Furthermore, the cable is manufactured using FAILSAFE technology and does not produce power at its maximum operating temperature.
For this reason, the maximum operating temperature is the same whether the cable is powered or not. Installation is quick and easy as it can be cut, branched and terminated to size directly on site without the need for special equipment.

Temperature curve:

The graph shows the power rating supplied with a 230 V ac power supply and the cable installed on a suitably insulated metal pipe and dimensioned according to standards IEC 62395 and IEC 60079-30.

Certifications

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