User Guide
NOsparc User Manual ! Page 5 of 6
www.ArcSuppressionTechnologies.com Arc Suppression Technologies
SPECIFICATIONS
NOsparc Model
MGXDC1F250
ABSOLUTE MAXIMUM
CURRENT RATING
75A. This absolute maximum current rating also represents the maximum allowable Locked Rotor
Amperage (LRA) for motor loads and the cold filament inrush current for tungsten loads
ARC SUPPRESSION
Duration: 1ms (typical)
CIRCUITS (CONTACTS)
One (1) NOsparc per contact (multiple NOsparc units required for multi-contact relays)
CIRCUIT BREAKER / FUSE
(MAXIMUM)
50A for resistive loads (see Safe Operating Area charts next page for more detail)
CLAMPING VOLTAGE
330V (typical at 1mA)
CONTACT CYCLING
Maximum cycle time: per relay specifications (DO NOT EXCEED relay operating specs)
DIMENSIONS
single: length: 2.380in (6.045cm) x width: 1.070in (2.718cm) x height: 0.740in (1.880cm)
ENVIRONMENTAL
operating temperature: -40°C to 85°C (-40°F to 185°F)
storage temperature: -50°C to 125°C (-58°F to 257°F)
humidity: 5% to 95% (non-condensing)
INTERFACE WIRES
across contacts: two (2) (W1 / W2 non-polarized)
LEAKAGE CURRENT
0.5mA (nominal)
MOUNTING
orientation: any // number of holes: two (2) // hole diameter: 0.150in (#6 screw) (3.81mm)
MTBF / RELIABILITY
2.6 million hours (MIL-HDBK-217F)
OPERATING VOLTAGE
(NOMINAL +/-15%)
12Vdc to 250Vdc
POWER-ON
load current passthrough: 1 ms
POWER TYPE
DC (direct current)
TERMINATION
0.250in quick connect male terminals (non-insulated)
TERMINATION MATE
0.250in quick connect female terminals (fully insulated)
WEIGHT
net weight: 1oz (28g)
WIRE GAUGE
wire length between Nosparc and contact terminals: 0in to 24in: #14AWG (minimum)
24in to 36in: #12AWG (minimum)
NOTE: wire lengths over 3 feet are NOT recommended
CIRCUIT BREAKER / CIRCUIT FUSE DE-RATINGS
The following charts depict the circuit breaker / circuit fuse Safe Operating Area (SOA) for different loads.






