Quotation for Vanguard MCCB-250 Molded Case Circuit Breaker Tester in the United States

Vanguard MCCB-250 Molded Case Circuit Breaker Tester from the United StatesProduct Overview

MCCB-250 is a programmable high current device
Source, specifically designed for testing molded case circuit breakers and heat
Overload, magnetic overload, or transistor overload
Motive protection relay.

Vanguard MCCB-250 Molded Case Circuit Breaker Tester from the United StatesBuilt in timer

The built-in timer of MCCB-250 can be used for
Test the delay of protective relays and molded case circuit breakers
characteristic. Once the test begins, the current source and timing
The device will automatically switch to the next zero crossing point of the AC power supply
Start up. When detecting the input channel of MCCB-250
Changes in dry contact state or voltage input
When the disappearance of the test current is detected,
The timer will stop. Then the test results will be
Displayed on the backlit LCD screen of the instrument (4)
Row x 20 bytes), in milliseconds or weeks
The fractional form of waves.

current source

MCCB-250 has 4 current source outputs (5 amperes @ AC)
Current voltage 120 volts, 25 amperes @ AC voltage 24 volts, 120
Ampere @ AC voltage 6 volts, 250 Ampere @ AC voltage
3 volts), direct the test current to the high impedance load circuit.
Each current source can withstand overload for a certain short period of time
(See the table below for details). This function can be used to measure plastic shells
Instantaneous tripping performance of circuit breakers. When using this function
When selecting the appropriate test current, it will be displayed on the LCD screen
On the screen. When MCCB-250 is used as a current source, the current
The output time (the time when the current is in the output state) will
Displayed on the LCD screen.

MCCB-250 Molded Case Circuit Breaker TesterExternal current input

MCCB-250 also provides an external current input interface
(0-10 amperes). Internal and external current source readings
Simultaneously displayed.