AC Input Current Switches from NK Technologies
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AC Input Current Switches from NK Technologies

AC Input
  • Monitor AC current loads to detect under or overload condition (See DC Input Models)
  • Input ranges from 1-1600 Amps
  • Solid-core models with front or top terminals, Split-core models for easy installation
  • Fixed or Adjustable setpoints with indication
  • Solid State contact or SPDT Relay outputs
  • Normally Open or Normally Closed output contacts for switching AC or DC
  • Self-powered, Low voltage AC/DC and 120VAC power options
  • RoHS2 Compliant. 5 Year Warranty!
    NK Technologies AC Input Current Switches from Mod-Tronic IN STOCK
    General Installation Instructions for all models (What does N.O. & N.C. mean?)

    View our NK Technologies stock list here (coming soon)
  Solid State Output   I   SPDT Relay Output   I   Time Delay Ouput   I   Relay & Transmitter
AC Input Current Switches
(Unique feature of each model highlighted in orange)
Model AC Input
Ranges
(Amps)
Case Style
Solid / Split
Core
Sensing
Aperature
Size
Setpoint Output
Types / Ratings
Power
Supply
Approvals PDF
Specs
Normally
In Stock?
Price
Type Range
(Amps)
Low Current Model 0-350 mAmps
Jumper
Selectable

0-15*
15-350*
*mA
0.75"
Dia.
Adjustable
(Range Jumper
& Blind Pot)
3-15*
15-350*
*mA
Solid State
N.O. or N.C.

1.0A @ 240VAC
or
0.15A @ 30VDC

120V AC
or
24V
AC/DC



Inquire
Fixed Setpoint Models 1-250 Amps
>0.5
100 Max.

0.31"
Dia.
Fixed 0.5
Solid State
N.O. or N.C.

0.15A @ 120V
AC or DC
 
Self
Powered



>5.8
250 Max.
0.74"
Dia.
Fixed 5.8 SPST Relay
N.O.

5A @ 250V AC
5A @30V DC

Self
Powered

Inquire
Wide Current Range Models 1-150 Amps
1-150
0.74"
Dia.
Factory-Set
2 -150
Solid State
N.O.

0.3A @ 135V
AC or DC

or
N.C.
0.2A @ 135V
AC or DC

Self
Powered

None

Inquire
0.85"
Square
Factory-Set 3 -150
1-150

0.55" or
0.74" Dia.

Adjustable
(Blind Pot)
1 -150 Solid State
N.O.

0.15A @ 240V
AC or DC

or
N.C.
0.2A @ 135V
AC or DC

Self
Powered


0.85"
Square
Adjustable
(Blind Pot)
1.75 -150
1-150
0.74"
Dia.
Self-Setting
(Smart Switch)
1.5 -150 Solid State
N.O.

0.3A @ 135V
AC or DC

or
N.C.
0.2A @ 135V
AC or DC

Self
Powered


Inquire
0.85"
Square
Self-Setting
(Smart Switch)
2.8 -150
Model AC Input
Ranges
(Amps)
Case Style
Solid / Split
Core
Sensing
Aperature
Size
Setpoint Output
Types / Ratings
Power
Supply
Approvals PDF
Specs
Normally
In Stock?
Price
Type Range
(Amps)
Jumper Selectable Range Models 1-200 Amps
AS3
Series
Jumper
Selectable

1-6
6-40
40-200

0.55" or
0.74" Dia.

Adjustable
(Range Jumper & Blind Pot)
1-6
6-40
40-175
Solid State
N.O. or N.C.

1A @ 240VAC
0.15A @ 30VDC
or
Dual N.O.
0.15A @ 30VDC
or
SPDT
0.15A @ 30VDC
or
SPDT
15A @ 120 VAC
10A @ 240 VAC
Self
Powered

0.85"
Sq.
Adjustable
(Range Jumper
& Blind Pot)  
1.75-6
6-40
40-200
Jumper
Selectable

1-12
12-55
50-200


0.75"
Dia.

Adjustable
(Range Jumper Blind Pot)
1.5-12
12-55
50-200
Time Delay
Solid State
N.O. or N.C.

1
A @ 240VAC
0.15A @ 30VDC
Self
Powered


Inquire
0.85"
Square
Adjustable
(Range Jumper Blind Pot)
1.75-6
6-40
40-200
Narrow Current Range Models 1-200 Amps
___1-20
__20-50

0.75"
Dia.
Adjustable
(Blind Pot)
.75 -20
20-50
Solid State
Dual N.O.

1.0A @ 30V DC

Self
Powered
None
Inquire
___1-20
__20-50
__50-80
0.75"
Dia.
Adjustable
(Blind Pot)
1-20
20-50
50-80
Time Delay
SPDT Relay
1A @ 120V AC

 
120V AC
or
24V
AC/DC
None
Inquire
___1-10
__10-50
__50-100
_100-150
0.55"
Dia.
Adjustable
(Rotary Switch)
1-10
10-50
50-100
100-150
Solid State
N.O.
0.15A @ 240V
AC or DC

or
N.C.
0.2A @ 135V
AC or DC
Self
Powered

Inquire
___2-20
__20-50
__50-100
_100-150
0.85" Square Adjustable
(Rotary Switch)
2-20
20-50
50-100
100-150
___1-50
___4-200
0.74"
Dia.
Adjustable
(Pot with LED Display)
1-50
4-200
Solid State
N.O.

1.0A @ 240VAC
or

N.C.
1.0A @ 240VAC

24V
AC/DC

None

Inquire
Model AC Input
Ranges
(Amps)
Case Style
Solid / Split
Core
Sensing
Aperature
Size
Setpoint Output
Types / Ratings
Power
Supply
Approvals PDF
Specs
Normally
In Stock?
Price
Type Range
(Amps)
Large Aperature & High Current Models 50-1600 Amps
__50-200
_100-400
_150-600
_200-800
1.19"W
x
2.22"H
Adjustable
(Labelled Pot)
50-200
100-400
150-600
200-800
SPDT Relay
1A @ 120VAC
2A @ 30VDC

120V AC
or
24V
AC/DC
None
Inquire
_200-800
_400-1000
_600-1200
1000-1600
2.3"W
x
3.42"H
Adjustable
(Labelled Pot)
200-800
400-1000
600-1200
1000-1600
SPDT Relay
1A @ 120VAC
2A @ 30VDC
120V AC
or
24V
AC/DC
None
Inquire
Current Switches with Transmitter Output 1-1200 Amps
__0-50
__0-200


0.75"
Dia.
Adjustable
(Pot with LED
Display)
1-50
4-200
Solid State
N.O. or N.C.

1
A @ 240VAC
&
4-20 mA or
0-5 VDC or
0-10VDC
18-30V
AC/DC

None

Inquire
0-1200


1.81"
Dia.

Adjustable
(Rotary Switch)
10-1200 SPDT Relay
1
A @ 125VAC
2A @ 30VDC
&
4-20 mA
120VAC
or
24VDC

None

Inquire

Note: Environmental Ratings for all models above are:
Ambient Temperature: -4 to 122°F (-20 to 50°C). RH: 0–95%, non-condensing

Sensing Current Voltage Rating for all models above:
600V AC or DC with a bare conductor, higher voltages possible with insulated conductors.

This table is for a quick comparison of each model only. Please review the PDF specs for all specifications to verify the suitability for your application.


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