Siemens I-T-E Sensitrip MD Series Information And Instruction Manual page 9

Molded case circuit breakers

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MD and ND-Frame Trip Adjustments

Figure 1

= Maximum circuit breaker ampere rating.

= Current Rating—a function of continuous ampere adjust-

ment setting expressed in % of I

Adjustable Continuous Amps Switch

= %I

All SMD-SND solid state molded case circuit breakers have

an adjustable continuous amps rating switch. Adjustments

made to this switch can change the continuous amps rating

of the breaker to 20, 30, 40, 50, 60, 70, 80 or 90% of the

maximum continuous amps rating (In) of the circuit breaker.

See Figure 1 for the possible settings for this switch.

= Ground Fault Pickup—a function of adjustment setting

expressed in % of I

Adjustable Long Time Delay

Seconds @ 6 x I

SMD/SND models with an adjustable long time delay switch

allow for selection of long time delays of fixed time intervals

at six times the continuous amps setting (1,). See Figure 1 for

the possible settings for this switch.

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