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DRA Series

AC Power DIN-Mounted SPD with Replaceable Mods

The Meter-Treater DRA Series of Surge Protection Devices (SPDs) are single pole, parallel connected (MOV based technology) Type 1 CA (component assembly) protectors. Designed for use in both Type 1 and 2 locations these units are ANSI/UL 1449 Recognized. Each protector module provides 50 kA of Surge protection in a maintenance free, standard DIN profile, DIN Rail mountable, IP20 enclosure.

Benefits

  • DIN Rail mountable surge protection devices

    • Replaceable SPD modules eliminate costly, time-consuming replacement wiring ?

    • Simple snap "in/out"design for module replacement ?

    • Compact & lightweight yet rugged

  • Visual monitor advises protection status

  • Model choices allow for single mode or all-mode protection strategies

  • Each protector module's fixed base is "keyed" to ensure proper application

  • All protectors (except N-G model) are equipped with signaling contacts for remote monitoring of protection status

The DRA Series is extremely flexible and can be configured to meet your exact protection requirements. A combination of base options allows for increases in per phase or per mode surge capabilities by simply ganging units.
Commercial
Industrial
Residential
Power

Power

Load Current
Max Surge Current (8/20) Iₘₐₓ
Short-Circuit Current Rating (SCCR)
Repetative Impulse Rating (Iₙ)
On/Off Status⬥
Housing Rating
Product Weight
Product Dimensions
Most Current Industry Standards
Surge Technology
Connector Form/ Type
Connector Method
Interface
Operating Temperature
Operating Frequency
Fusing
Listings & Certifications
Enclosure
Max. Operating Voltage
Max. Clamp Voltage
Energy Rating/ Wire
Response Time
Warranty
Series Resistance
Peak Pulse Power
Line - Load Sensitive
Breakover Voltage: (Line - Ground)
Attenuation Margin
NEXT
Data Transfer Rate
Power Sum NEXT
Return Loss
ACR
Power Sum ACR
ARC -F
PSACRF
Mounting
Relative Humidity
Terminals
Max. Circuits Protected
Modes of Protection
Continuous Current
Follow Current
Wire Range
Feedback
Remote Alarm Contacts
Remote Alarm contact capability (Nominal Volts/ Nominal Amps)
Remote Alarm Wire Size
Included Accessories
50 kA
200 kA
20 kA
Fault Windows
[See EDR Series]
IP 20
MOV
-40 ℉ to +185 ℉ (-40 ℃ to + 85 ℃)
47-63 Hz (50/60 Hz Typ.)
Listed to ANSI/UL 94 V-0
< 1 Nanosecond
5 Year Limited Product Warranty
35mm DIN-Rail
95% noncondensing
MOV model: None, GDT model: 200A Self Cutoff
#6-#12 AWG Solid (#2 AWG max) Stranded (#4 AWG max) CU
NO/NC/C, Isolated Form C
AC: 250V/0.5A DC: 250V/0.1A
Max # 16 AWG

Specifications

Specification
Value
Max Surge Current (8/20) Iₘₐₓ
50 kA
Short-Circuit Current Rating (SCCR)
200 kA
Repetative Impulse Rating (Iₙ)
20 kA
On/Off Status⬥
Fault Windows
Housing Rating
[See EDR Series]
Most Current Industry Standards
IP 20
Surge Technology
MOV
Operating Temperature
-40 ℉ to +185 ℉ (-40 ℃ to + 85 ℃)
Operating Frequency
47-63 Hz (50/60 Hz Typ.)
Listings & Certifications
Listed to ANSI/UL 94 V-0
Response Time
< 1 Nanosecond
Warranty
5 Year Limited Product Warranty
Mounting
35mm DIN-Rail
Relative Humidity
95% noncondensing
Follow Current
MOV model: None, GDT model: 200A Self Cutoff
Wire Range
#6-#12 AWG Solid (#2 AWG max) Stranded (#4 AWG max) CU
Remote Alarm Contacts
NO/NC/C, Isolated Form C
Remote Alarm contact capability (Nominal Volts/ Nominal Amps)
AC: 250V/0.5A DC: 250V/0.1A
Remote Alarm Wire Size
Max # 16 AWG

Diagrams 

Not To Scale

Electrical Ratings

Click on any DRA Series model from the table to request a quote

Model Number
Service Voltage
TYPE
MCOV
# of Poles
L-N (MCOV)
L-G (MCOV)
N-G (MCOV)
L-N (VPR)
L-G (VPR)
N-G (VPR)
DIN Rail
DRA50-1P120-S
Single Phase 120V
AC
150V
1
150V
150V
N/A
700V
700V
N/A
✓
DRA50-1P220-S
Single Phase 220V
AC
275V
1
275V
275V
N/A
1000V
1000V
N/A
✓
DRA50-1P480-S
Single Phase 480V
AC
550V
1
550V
550V
N/A
1800V
1800V
N/A
✓
DRA50-2P120-LNG-S
1Phase 120V
AC
150V
2
150V
N/A
150V
700V
N/A
900V
✓
DRA50-2P277-LGN-S
1Phase 277V
AC
320V
2
N/A
320V
320V
N/A
1200V
1200V
✓
DRA50-2PS127-S
2Phase 120/240V
AC
180V
2
180V
180V
N/A
1000V
1000V
N/A
✓
DRA50-2PS240-S
2Phase 240/480V
AC
320V
2
320V
320V
N/A
1200V
1200V
N/A
✓
DRA50-3P240-S
3Phase 240V
AC
320V
3
N/A
320V
N/A
N/A
1200V
N/A
✓
DRA50-3P480-S
3Phase 480V
AC
550V
3
N/A
550V
N/A
N/A
1800V
N/A
✓
DRA50-3PS127-S
2Phase 120/240V
AC
180V
3
180V
180V
180V
1000V
1000V
1000V
✓
DRA50-4P120-S
3Phase 120/208V
AC
150V
4
N/A
150V
150V
N/A
700V
700V
✓
DRA50-4P277-S
3Phase 277/480V
AC
320V
4
N/A
320V
320V
N/A
1200V
1200V
✓

Gas Discharge Tube is used in LNG units

Note: For Canadian applications add a "/C" at the end of the Model Number

⬥ Window Fault Indicator: Red = Service, Green = Good

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