ABB XT4N 250 TMA, 4-pole distribution circuit breaker, 225 A In, 250 A Iu, thermal-magnetic trip unit, 690 V, 50/60 Hz.
| Parameter | Value |
|---|---|
| Type designation | XT4N 250 TMA 225-2250 4p F F InN=50% |
| Product type | Distribution Circuit Breakers |
| Trip unit | TMA |
| Parameter | Value |
|---|---|
| Rated current (In) | 225 A |
| Nominal current (In) | 225 |
| Number of poles | 4 poles |
| Rated uninterrupted current (Iu) | 250 |
| Rated voltage (Ur) | 690 V |
| Rated frequency | 50 / 60 Hz |
| Parameter | Value |
|---|---|
| Dimensions (W x D x H, in) | XT4 |
| Dimensions (L x W x H, cm) | 8.25cm x 14cm x 16cm |
| Weight | 3.1 Kg |
The 1SDA068105R1: This is an ABB XT4N 250 TMA distribution circuit breaker — 4-pole, 225 A rated current (In), on a 250 A frame (Iu). The type string XT4N 250 TMA 225-2250 4p F F InN=50% indicates the trip unit is set to 50% of the maximum adjustability — meaning it's factory-calibrated for 225 A on a 250 A frame. This is a standard configuration for applications needing headroom on the frame.
Sourced against an RFQ. No last-time-buy to watch.
Rated current (In) is 225 A; frame rating (Iu) is 250 A.
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