ABB XT4N 250 MA 200 motor protection circuit breaker, 3-pole, In 200 A, Iu 250, 690 V, 50/60 Hz.
| Parameter | Value |
|---|---|
| Type designation | XT4N 250 MA 200 Im=1000...2000 3p F F |
| Product type | Motor Protection Circuit Breakers |
| Trip unit | MA |
| Parameter | Value |
|---|---|
| Rated current (In) | 200 A |
| Nominal current (In) | 200 |
| Number of poles | 3 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 10.5cm x 16cm |
| Weight | 2.1 Kg |
The ABB 1SDA068121R1 is a 3-pole motor protection circuit breaker from the XT4 frame, rated 200 A continuous and 690 VAC. It uses an MA trip unit (magnetic-only), intended for direct motor starting duty where overload protection is handled separately. The type string XT4N 250 MA 200 confirms the frame size 250 with a 200 A setting and adjustable magnetic trip threshold from 1000 to 2000 A.
Both share the same XT4 frame dimensions (8.25 × 10.5 × 16 cm), so the physical mounting is identical. However, the trip unit differs (MA vs Ekip I), so a direct swap without verifying protection coordination is not advised.
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