Vanguard MCCB-250 User Manual
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MCCB-250 USER’S MANUAL
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MCCB-250 Technical Specifications
Table 1. MCCB-250 Technical Specifications
TYPE 250 Ampere current source
PHYSICAL SPECIFICATIONS Dimensions: 16.8”W x 12.6”H x 10.6”D (42.6 cm x 32.0 cm x 27.0 cm);
Weight: 46 lbs (21 kg)
INPUT POWER
100 – 120 Vac or 200 – 240 Vac (factory pre-set), 50/60 Hz
OUTPUT CURRENTS
0 – 5 A @ 120 Vac max; 0 – 25 A @ 24 Vac max;
0 – 120 A @ 6 Vac max; 0 – 250 A @ 3 Vac max
INTERNAL CURRENT METER
100 mA – 1000 A; Accuracy: 1% of reading ±20mA
MEASUREMENT METHOD
Isolated CT
EXTERNAL METER RANGE
10 mA – 10 A; Accuracy: 1% of reading, ±2mA
MEASUREMENT METHOD
Isolated CT
TIMER READING RANGE
1ms – 2 hours; Accuracy: 0.1% of reading ±1ms
TIMER STOP INPUTS
Voltage input (24V – 300V, DC or peak AC), dry contact input, or removal
of primary current
DISPLAY
Back-lit LCD Screen (20 characters by 4 lines); viewable in bright sunlight
and low-light levels
COMPUTER INTERFACE
RS-232C port for factory calibration and diagnostics
SAFETY
Designed to meet IEC61010 (1995), UL61010A-1, CSA-C22.2 standards
ENVIRONMENT
Operating: -10˚C to 50˚ C (15˚F to +122˚ F); Storage: -30˚ C to 70˚ C (-
22˚F to +158˚ F)
CABLES
Power cord, ground cable, two 10-foot (#4 AWG) test leads, one 10-foot
(#10 AWG) test lead , four 10-foot external input cables
OPTIONS
Transportation case
WARRANTY
One year on parts and labor
NOTE
The above specifications are valid at nominal operating voltage and at a
temperature of 25
°C (77°F). Specifications may change without prior notice.