Product Specification Sheet
Model: MS5521
Plug-In PT Transmitter with Isolated Single Output

MS5500DESCRIPTION

51

The MS5521 is a plug-in PT transmitter that calculates therms values of AC current signals from a PT, converts theminto commonly used DC signals, and provides an isolated
single output.

SZ85

ORDERING CODE

MS5521 --_Model
136.5

Power Supply
A: 100 to 240V AC (50 to 60Hz)
D: 24V DC
P: 100 to 240V DCInput (AC Voltage Signal)
1: 0 to 110V AC, 50/60Hz
2: 0 to 150V AC, 50/60Hz
3: 0 to 300V AC, 50/60Hz0: Other AC voltage signals, 50/60HzOutput
A: 4 to 20mA DC
D: 0 to 20mA DC
Z: Other DC current signals

1: 0 to 10mV DC
2: 0 to 100mV DC
3: 0 to 1V DC
4: 0 to 10V DC
5: 0 to 5V DC
6: 1 to 5V DC
3W: ±1V DC
4W: ±10V DC
5W: ±5V DC
0: Other DC voltage signals

Options
No code: None
/H: Polyurethane conformal coating/X: Others (Special order)* For non-standard options, ask MTT for availability.

ORDERING INFORMATION
To place an order, please use the ordering code format
as shown above.
(e.g.) MS5521-A-16
Other Ordering Examples:
For an input code of “0”: MS5521-A-0A (Input: 0 to 200V)
For an output code of “0”: MS5521-A-20 (Output: 2 to 5V)
For an option code of “X”: MS5521-A-2A/X (0-90%
response time: 100ms max.)(mm)

SPECIFICATIONS●POWER SECTION
PowerRequirements

100 to 240V AC: 85 to 264V AC (47to 63Hz)
24V DC: 24V DC±10%
100 to 240V DC: 85 to 264V DC
Power Sensitivity Better than ±0.1% of span for eachpower supply range.
Power Line Fuse
160mA fuse
Maximum Power ConsumptionPower100-240V AC 24V DC 100-240V DC
Approx.
Approx.
Approx.
4.5VA
1.2W
4.8W

●INPUT SECTION
Input Resistance
Allowable Input
Current
Crest Factor
Ranges Available

1MΩ min. with or without power.
Continuous: 120% of the rated input
valueInstantaneous: 1.5 times the rated
input value (within 5 seconds)
3 max.
Between 0-10mV AC and 0-300V AC.

●OUTPUT SECTION
Allowable Output Load
Voltage Output (DC) 1V span and up
2mA max.
10mV
10kΩ min.
100mV
100kΩ min.
Current Output (DC) 4 to 20mA
750Ω max.
Zero Adjustment
Approx. ±5% of span.
(Adjustable by the front-accessibletrimmer.)
Span Adjustment Approx. ±5% of span.
(Adjustable by the front-accessibletrimmer.)
Ranges AvailableCurrent Signal
Voltage Signal
Output Range (DC)
0 to 20mA-10 to 10V
Output Span (DC)
4 to 20mA
10mV to 20V
Output Bias
0 to 100%-100 to 100%
* For current output signals, the accuracy of any current
output smaller than 0.1mA is not guaranteed.
Output Spec. Ex. 1: For 4 to 20mA output, the output span
is 16mA and the bias +25%.
Output Spec. Ex. 2: For -1 to 4V output, the output span is
5V and the bias -20%.
Rev. 1.40

Page: 1/2

Product Specification Sheet

Model: MS5521

Plug-In PT Transmitter with Isolated Single Output●PERFORMANCE●MATERIAL

Accuracy Rating

Housing
SocketScrew Terminal

Temperature
EffectResponse Time
CMRR
Isolation
Insulation
ResistanceDielectric Strength
Surge Withstand
Capability
Operating
Environment
Storage
Temperature

Better than ±0.25% of span with atleast 10% input (at 25°C±5°C).
Better than ±0.2% of span per 10°C
change in ambient.
400ms max. (0 to 90%) with a step
input at 100%.
100dB min. (500V AC, 50/60Hz)
3-way isolation between input,
output, and power.
100MΩ min. (@ 500V DC) between
input, output, and power.
Input / Output / Power: 2000V AC
for 1 minute (Cutoff current: 0.5mA)
Tested as per ANSI/IEEE
C37.90.1-1989.
Ambient temperature: -5 to 55°C
Humidity: 5 to 90% RH(non-condensing)-10 to 60°C

ABS resin (UL 94V-0)
ABS resin (UL 94V-0)
Galvanized steel with trivalentchromate finish
Glass fabric, epoxy resin(FR-4: UL 94V-0)

Printed Circuit
Board

TERMINAL ASSIGNMENTS+ OUTPUT− OUTPUTL INPUTN INPUT
N.C.
N.C.
P (+)
N (−)

POWER

●PHYSICAL
Installation
Mounting Direction
Screwing Torque
WiringExternal
Dimensions
WeightWall/DIN rail mounting
Vertical
0.78 to 1.18 [Nm] * Recommended
M3.5 screw terminal connection
W51 × H85 × D136.5 mm(including the socket)
Main unit: 200g max.
Socket: 60g max.



BLOCK DIAGRAM

ZPT

S

L
RMS CALC.

Amp.

N

POWER
SUPPLY

P (+)
N (−)

OUTPUT
ISOLATIONISOLATIONCIRCUITCIRCUITCIRCUITOUTPUT +OUTPUT −POWER
CIRCUIT

Rev. 1.40

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