Electrical Asset Monitoring  T401 - Rugged Monitoring
                     T40
TRANSFORMER 
MONITOR
ROBUST  | RELIABLE  | 
RESPONSIV1E
T401 MONITORING 
Transformer Health 
FReUal NTimCeT MIoOnitNoriSng and Advance Assessment- Remote Monitoring and Control Control
- Insulation Life Estimation
- Overload Capacity
- Bubbling Temperature
-
Transformer Moisture in Insulation
-
Monitoring Real time Alarm and 
Notifications
- Oil Temperature - Easy Integration
- Winding 
Temperature
- Load Current
- OLTC Tap Position
- Liquid Level
- Tank Pressure
Bushing Monitoring Dry Type TR 
Integration Monitoring
- TanDelta (Power Factor)
- Capacitance
PD Monitoring 
Integration
- PD Amplitude Transformer 
- MonitoringPD Discharge 
Rate Dissolved Gas analyzer 
Integration
- Single gas 
DGA
- Multi-gas 
DGA
Cooling - Moisture
-CoFanntr/oPlump Status
- Fan Bank Motor Vault 
Current OLTC Monitoring Monitoring
- Cooling Efficiency - Oil Temperature
- Fan bank Exercise - Oil Level
- OLTC Tap Position
- OLTC Motor 
Current
- Contact Wear
0 0
2 3
FUNCTIONALIT
Y
RUGGED 
SOFTWARE
T401 
ASYRSCTHEITMECTU
RE
Hardwired 
(Analog/Digitals)
Serial RS-485 (Modbus / DNP3.0 / 
IEC60870-104)
Hardwired 
FO available with (Analog/Digitals)
T501
1 2 3 4 5 6 7
Sensors Fiber Transformer Sensor Dissolved Bushing Partial 
Cooling 
on  Optic  Control on  Control Gas &  PD Discharge  
Transform Temperatu Cubicle OLTC/RTC Analyzers Monitor Monitor
er re C
Certificatio
ns
- ATEX
1. OTI,WTI, RTD, PRD, Breather, - Lloyds
BucRhehlaoyl,z LLG/OLI, Pressure 
1 - CE / RoHs
2. TSreannssofor remtce.r Control Cubicle 6
2 1
3. OLTC and RTCC Panel 7
1
4. Cooling System and Control Variant
Cabinet s
4
5. Dissolved Gas Analyzer -1 Offshore / Marine
-
6. Bushing Monitoring 3 5 Ethernet Redundancy: PRP
- Enterprise Monitoring 
7. Partial Discharge Monitor 4 Software
0 0
4 5
ARCHITECTU
RE
KEY 
BENEFITS
T401 
FCoEmDemA
preh
anTdU
enRsivEe SFeatures to Meet Market - Desktop and Web Client- Remote Configuration
- Advanced Visualization
- Data Logging, Reporting
- Supports Industry Standard 
RELAY OUTPUTS Protocols
- -08 x Form C Relay Customization available on 
contacts request
-
- NO-C-NC Secure access to data & 
POWE R - Cooling control Configuration
-
INPUT - Alerts / Alarms Multiple Language Support
- 2Po4w / e4r8 S Vudpcply Unit 
/  Adaptor LOCAL DISPLAY
provided as  - Industrial Grade LED
Accessories - Current Values of all 
(OPTIONAL) Parameters
LE D 
INDICATORS
- Power ON/OFF
- System Fault
- Alarm & Log
ANAL OG 
-O0U4T PxU UTsSer Programmable USB PORT
- Current Output (4-20mA)
-
- Voltage Output (0-5V/0- Configuration 
10V) &  
Troubleshootin
g
- Data Export
- MicroSD Card
ANAL OG / DIGITAL 
INPUTS
- 08 x Configurable Inputs
- RATCD C (uPrTre-1n0t 0()C, lamp-On CT), DC current (4-
P2o0tmenAt)iometer SERIAL PORT (RS-
- Digital (Dry Contacts) E TH E RNE T PORTS485)
- AC/DC Voltage - 02 x configurable Ports (RJ-45/SFP)
- Data Input/ - Full Redundancy
output Integration - PRP Protocol
- Modbus Protocol - Modbus, DNP3.0, IEC60870-104 and IEC 
- DNP3.0 Protocol 61850
- IEC60870-104 
0 Protocol 0
6 7
FEATURE
S
RUGGED 
SOFTWARE
TECHNICAL PRODUCT 
SPECIFICATIONS DRAWINGS
Input Power Requirement 24/48 VDC ± 10% 237.00m
POWER SUPPLY
Power Consumption 20 Watts m  
[9.33in]
# of Input Channels 08/04 Channels 4X M8X1.0 17[65.8190imm
Configurable from a range of input options, RTD, AC/DC - n]
ANALOG/DIGIT Input Channel Types current,  AC/DC voltage, Potentiometer, Dry/Powered 
AL  INPUT contact switch
MODULE Accuracy of Channels ±0.5% full scale input range
Input Channel Sample Rate 1 Hz
# of Output Channels 04 Channels
ANALOG 
OUTPUT  Output format 4-20 mA or 0-5Vdc / 0-10Vdc
MODULE (Configurable for any measured / calculated value)
# of Output Channels 08 Form C relays (5A)
OUTPUT 
RELAY  User Programmable Yes, from Rugged Connect Software or webserver, if 
MODULE present
Data Storage Capacity 4 or 8 GB, Industrial Grade micro-SD, extendable to 2TB 267.54m
Logging Rate User Configurable, 1 sec interval on USB
DATA m  
STORAGE &  System Fault Indication 1 System Fault Relay, with Local LED light [10.53in
CONFIGURATI
ON Config port USB (to use with Rugged connect windows software) ]
Serial Communication 01 x RS-485 (RS-232 optional converter)
Ethernet Communication 02 Ethernet Ports, configurable to RJ-45 or SFP (Gigabit 
COMMUNICATION Optical)
Redundancy Support PRP Redundancy
Modbus, DNP3.0, IEC60870-104, IEC61850,
Protocol Supported Other protocols provided on request
Conducted & Radiated Emissions ICES-003 (2016), CISPR32 (2015), CISPR11 (2015)
Weight : 2 
ESD and EM Field Immunity IEC61000-4-2, C37.90-3, IEC61000-4-3, C37.90.2 Kilograms
Fast Transient & Surge Immunity IEC61000-4-4, IEC61000-4-5, C37.90.2
EMC TYPE Magnetic Field Immunity IEC61000-4-8, IEC61000-4-10
TESTING
Immunity from Conducted IEC61000-4-6, IEC61000-4-16 ORDERING CODE
Disturbances
Ripple, Dips & Damped Oscillatory IEC61000-4-17, IEC61000-4-18, IEC61000-4-29 Model Number of Analog 
Number  Based on Input Channel Outputs  0 = No Analog 
Safety IEC60255-26 and CE Certified
Configuration Outputs
Operating Temperature -40 to 72 °C 4 = 4 Analog Outputs
T  4  0 1 - E A R M Memory 
Operating Humidity 95% Non Condensing Size  4 = 4 
ENVIRONMENT GBStorage Temperature -40 to 85 °C
AL  AND 8 = 8 GBEthernet 
MECHANICAL Dimensions W26.7 cm x H7.2 cm x D18.7 cm (10.5’’ x 2.8” x 7.4”) Protocols  0  = Number of Relay 
1N o= E Etthheerrnneett Board RJ45 Outputs  0  = No Relay 
Weight App. 1.5 to 2.0 Kg. (based on number of configuration)
2 = Ethernet Board RJ45 & Outputs
SFP 8 = 8 Relay Outputs
0 0
8 9
SPECIFICATIO
NS
65.00mm  
[2 .56 in]
187.54m
m  
[7.38in]
187.54m
m  
[7.38in]
65.00mm  
[2 .56 in]
96.10m
m  
[3.78in
]
DS0026R05_T401 DRAWING
TnD_EN_A4
S
RUGGED 
MONITORING
Certification
ISO9001
ISO14000
ISO 45001 (OHSAS 
18000)
ISO17025 
Certification  NIST 
Certification
ATEX Certification
Rugged Monitoring Services
Website
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Application Notes
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10
RUGGED 
MONITORING