Frequently asked questions

MARKING SYSTEM

Which are the marking tags dimensions for ASI terminal blocks ?
Is there any compatibility with marking systems of other Brands or made by specialized Companies ?

For the ASI terminal blocks the following marking systems are available:

CODE	DESCRIPTION	POSITIONINS ON TERMINAL	DIMENSIONS mm
			Height	Pitch
MTU	10 tags strip, white color, printed or unprinted	Side	3	6,5
TNP	50 tags sheet, white color, printed or unprinted	Side	5	5
TNM	50 tags sheet, white color, printed or unprinted	Side	6	6
TNU	100 tags sheet, white color, printed or unprinted	Side	6	6,5
TNS	40 tags sheet, white color, printed or unprinted	Top	10	4,5
TNB / TNG	56 tags sheet, white or yellow color, printed or unprinted	Side	10	5

The marking system is fully compatible with worldwide Brands like:
– Weidmuller
– Conta-Clip
– Allen Bradley

ASI terminal blocks can be marked with marking systems made by :
– 3M-GRAFOPLAST
– CEMBRE
– BRADY-MODERNOTECNICA

The suitable codes can be provided by us upon request for an easy identification.

CROSS CONNECTION BRIDGES

Are the push-in cross connectors usable on all ASI terminal blocks ?
The PE cross connectors are usable on USC 2,5 screw terminal block only; on all other USC sizes the cross connections shall be made by using the CVR sleeve with screw together with PR cross connectors.
The PEM cross connectors are usable on all ACF spring terminal blocks ; the original insulating voltage is decreasing to 400 V.

Is it possible to cut off the cross connection bridges to the needed lenght (pole number) ?
The screw bridges could be cut off to the needed lenght; in this case the use of end plate or separating plate is firmly required to guarantee the original insulating voltage.
Also the push-in bridges could be cut off to the needed lenght: in this case attention must be paid to alive ends.

Which types of cross connections could be obtained by using push-in connectors?
Thanks to terminals double slot feature, the push-in connectors are providing the following cross connections solutions:

NORMAL –
POLE SKIP –
ADJACENT –
FLEXIBLE CHAIN –
CROSSED –

CERTIFICATIONS

Are ASI terminal blocks provided of CE Mark ?
All ASI terminal blocks are provided with CE Mark, in compliance with 2014/35/UE Directive.

Are the ASI Terminal Blocks in compliance with CE and RoHS Directives?
Yes, they are made in compliance with 2014/35/UE (CE Mark) and 2011/65/UE (RoHS) Directives.

COLOURED TERMINAL BLOCKS

Does ASI products range include terminal blocks in different colours, in compliance to CEI EN 60204-1 Directive?

Yes, in our product range the following coloured feed-through terminals with relevant end plate are available:
– USC 2,5 _
– USC 4 _
– USC 6 _
– USC 10 _
– DFE 2,5-10 _

The following colours are available:

COLOUR	CODE	FUNCTION DESCRIPTION
Orange	O	Identifying live circuits inside the switchboard even when main switch is OFF
Red	R	Control circuits, AC current
Yellow	Y	–
Green	G	–
Black	K	Power circuits, AC and DC current
Grey	E	Control circuits, DC current
White	W	It could be used as additional wiring identification

FUSE HOLDER TERMINAL BLOCKS

Which are fuses dimensions to be used with ASI terminals ?
Is there a feature outlining the fuse breakage ?
The suitable fuses are:

FUSE	TERMINAL CODE	TERMINAL DESCRIPTION
Ø 5 x 20 mm	USC 4 PF USC 10FT/20	By lever fuse holder terminal – 4 mm² Cap fuse holder terminal – 10 mm²
Ø 5 x 25 mm	USC 10FT/25	Cap fuse holder terminal – 10 mm²
Ø 6,3 x 32 mm (¼” x 1 ¼ ”)	USC 10FT/32	Cap fuse holder terminal – 10 mm²

All the fuse holder terminals are also available with a red LED that indicate fuse breakage.
Available Voltages are: 12V, 24V, 48V 110V, 220V, 400V.

PRODUCTS SAFETY

Which is the self extinguish rate of ASI terminal blocks ?
All the insulating housings of ASI terminal blocks are made by 66 polyamide with self extinguish rate UL 94 – V0.

What is the operative temperature range for ASI terminal blocks ?
The ASI terminal blocks are studied to be employed in a wide range of operative temperature ( – 50 ÷ + 125 °C).