ASK series

ASK Current Transformer

The plug in busbar family, frame by frame. Twenty five published bodies from a 49.5 mm wide ASK231.5 up to a 250 mm wide ASK129.10 taking a 120 × 90 mm busbar at 7500 A.

Primary ranges30 A to 7500 A depending on frame
Secondary1 A or 5 A
MountingFoot mounted or busbar mounted
Terminal coversSnap fit secondary terminal covers
Busbar screwsInsulated ends to busbar pinch screws

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Product Overview

ASK plug in current transformers are foot mounted or busbar mounted with snap fit secondary terminal covers and insulated ends to the busbar pinch screws. Each frame is defined by transformer width, maximum conductor diameter, maximum busbar size and primary range, with 1 A or 5 A secondaries throughout.

Application Scenarios

Low voltage switchboard metering
High current busbar systems
Panel builds standardising on a plug in frame

Technical Features

Foot mounted or busbar mounted
Snap fit secondary terminal covers
Insulated ends to busbar pinch screws
1 A or 5 A secondaries on every frame

Specifications

Frame ladder

Frame	Width	Max conductor / busbar	Primary range
ASK231.5	49.5 mm	28 mm dia. / 30 × 10 mm	50 A to 600 A
ASK31.3	60 mm	26 mm dia. / 30 × 10 mm	50 A to 750 A
ASK31.5	60 mm	28 mm dia. / 2 × 20 × 10 mm or 30 × 10 mm	40 A to 600 A
ASK318.3	60 mm	26 mm dia. / 31 × 18 mm	60 A to 750 A
ASK41.3	60 mm	26 mm dia. / 40 × 12 mm or 32 × 18 mm	100 A to 800 A
ASK41.4	70 mm	32 mm dia. / 40 × 10 mm or 2 × 30 × 5 mm	50 A to 1000 A
ASK412.4	70 mm	30.5 mm dia. / 40 × 12 mm or 30 × 15 mm	50 A to 800 A
ASK51.4	85 mm	44 mm dia. / 2 × 40 × 10 mm or 50 × 12 mm	100 A to 1200 A
ASK541.4	85 mm	32 mm dia. / 2 × 30 × 5 mm or 40 × 10 mm	30 A to 1000 A
ASK561.4	85 mm	44 mm dia. / 60 × 10 mm or 2 × 50 × 10 mm	200 A to 1200 A
ASK61.4	95 mm	44 mm dia. / 63 × 10 mm or 2 × 50 × 10 mm	200 A to 1600 A
ASK63.4	95 mm	44 mm dia. / 60 × 30 mm or 50 × 40 mm	300 A to 2000 A
ASK63.6	88 mm	30 mm dia. / 60 × 30 mm	200 A to 2000 A
ASK81.4	120 mm	55 mm dia. / 80 × 10 mm, 60 × 30 mm or 2 × 60 × 10 mm	400 A to 2000 A
ASK101.4	130 mm	70 mm dia. / 100 × 10 mm or 2 × 80 × 10 mm	500 A to 2500 A
ASK103.3	172 mm	85 mm dia. / 2 × 100 × 10 mm or 3 × 80 × 10 mm	800 A to 3000 A
ASK103.41	199 mm	103 × 41 mm	400 A to 2000 A
ASK105.6	129 mm	100 × 55 mm	600 A to 2000 A
ASK105.6N	129 mm	100 × 55 mm	2500 A to 5000 A
ASK123.3	172 mm	100 mm dia. / 123 × 30 mm or 3 × 100 × 10 mm	1000 A to 4000 A
ASK127.4	159 mm	120 × 70 mm	1000 A to 2500 A
ASK128.4	100 mm	128 × 38 mm	400 A to 4000 A
ASK129.10	250 mm	120 × 90 mm	1000 A to 7500 A
ASK130.5	180 mm	130 × 30 mm	300 A to 3200 A

FAQ

Questions Buyers Ask

How do I pick an ASK frame?

Work from the busbar first. Find the frame whose maximum busbar size accepts your bar, check that the width fits the panel, then confirm the primary range covers your ratio.

Are DIN rail versions available?

The ASK31.3, ASK31.5, ASK318.3, ASK41.3, ASK41.4 and ASK412.4 frames are published as DIN rail, busbar or foot mounted. The larger frames are foot or busbar mounted.

What secondary current is available?

1 A or 5 A on every frame.