LD-50

Snap-On Load Detectors/Current Sensors
LD-50 Load Detector and High Sensitivity Current Transformers
• The revolutionary LD-50 snap-on load detector
mounts on pre-wired systems without disrupting
existing connections
• Range of new applications such as monitoring relays
and lamps, Hi/Low current limits, instrumentation,
solid state switchgear, motor control, and much more
• Broad frequency response: 30Hz to 15 kHz
• Operating temperature: -55°C to 120°C
• Measures currents up to 40 Amps RMS continuous,
120 Amps intermittent
High Sensitivity Current Transformers
• Excellent for low budget energy management and
automation control
API’s high sensitivity series of current transformers has
been specifically designed for those applications where
a low value of current is to be monitored. A primary
winding is supplied (pins 1 & 2) which helps increase
the sensitivity of the transformer.
• Available pre-assembled or unassembled, to snap
over existing wiring
Electrical Characteristics
• High reliability long lasting magnetic device
• Output linear to within 3% from 2A to 20A of Input
Dimensions and Construction
Dimensions in inches
VL
Volts
RL
Ohms
2.0*
100
Is
Sec DCR Sec Ind Accy at Accy at
Amps Ohms
H
100% Ip 10% Ip
0.02*
36
1.1
1.0%
0.3%
P/N
Load
Current Ip(A)
Turns
Ratio
Pri Ind
mH
Pri DCR
Ohm
5361
5362
5363
5364
5365
5366
5367
LD-50
0.05
0.1
0.2
0.5
1
2
5
20
1000:400
1000:200
1000:100
1000:40
1000:20
1000:10
1000:4
1000:1
176
44
11
1.76
0.44
0.11
0.018
**
15
3.7
0.93
0.15
0.038
0.01
0.0025
**
* Many customized output voltages and currents are available
on special request, at same low price
** For LD-50, the one-turn primary is customer supplied
The terminating resistor is customer supplied
+1 814.272.2700
eis.apitech.com
AHA 2/13
+1 855.294.3800
www.apitech.com