Monitoring Relays for Generators and ATS Systems
How phase-sequence, voltage/frequency and temperature monitoring relays let an ATS safely transfer a load onto a standby generator and back.
ABB's 1SCA152043R1001, catalog designation OXB200E3X4QB, is a 3-pole, 200 A TruONE automatic transfer switch with an 18 kA short-time withstand for 0.3 s. A Level 4 touchscreen controller provides full parameter access and event history, and the QB layout brings supply cabling in at the bottom with the load wired at the top.
The OXB200E3X4QB's 3-pole (X) build leaves the neutral solid between sources, fitting installations with a single bonded neutral; the 4-pole S variant switches the neutral too where required. Its Level 4 touchscreen controller is the most capable in the TruONE range, with full parameter access and event history, ahead of the Level 2 DIP and Level 3 LCD options at the same 200 A, 18 kA rating. QB termination brings the supply cabling in at the bottom of the enclosure with the load wired at the top.
| RoHS Information | Following EU Directive 2011/65/EU and Amendment 2015/863 July 22, 2019 |
|---|
| Degree of Protection | Front IP20 |
|---|---|
| Pollution Degree | 3 |
| Product Net Width | 330 mm, 12.99 in |
|---|---|
| Product Net Height | 305 mm, 12.01 in |
| Product Net Depth / Length | 183 mm, 7.2 in |
| Product Net Weight | 14.12 kg, 31.13 lb |
| Part number | 1SCA152043R1001 |
|---|---|
| Type designation | OXB200E3X4QB |
| Brand | ABB |
| Condition | New, factory sealed |
| Source | ABB and its authorised distributors |
| Warranty | Manufacturer warranty |
| EAN | 6417019827636 |
| ETIM class | EC000216 |
| eCl@ss | 27371403 |
| Minimum Order Quantity | 1 piece |
| Customs Tariff Number | 85365080 |
| Controller Type | Level 4 (Touch) |
|---|---|
| Conventional Free-air Thermal Current (Ith) | Θ = 40 °C 200 A |
| Handle Type | Direct Mount |
| Number of Poles | 3P |
| Position of Line Terminals | Supplies on Bottom - Load on Top |
| Power Loss | at Rated Operating Conditions per Pole 5.8 W, Total 17.4 W |
| Rated Frequency (f) | Main Circuit 50-60 Hz |
| Rated Impulse Withstand Voltage (Uimp) | 8 kV |
| Rated Insulation Voltage (Ui) | 1000 V |
| Rated Operational Current AC-31B (Ie) | (200 … 415 V AC) 200 A |
| Rated Operational Current AC-32B (Ie) | (200 … 415 V AC) 200 A |
| Rated Operational Current AC-33B (Ie) | (200 … 415 V AC) 200 A |
| Rated Operational Voltage | Main Circuit 200...480 V AC |
| Rated Short-time Withstand Current Low Voltage (Icw) | for 0.3 s 18 kiloampere rms |
| Special Functions | Open style |
| Standards | IEC60947-6-1 |
| Terminal Type | Bolt |
| Transition Type | Delayed |
| ETIM 10 | EC000216 - Switch disconnector (AC) |
|---|---|
| eClass | V11.1 : 27371403 |
| WEEE Category | 5. Small Equipment (No External Dimension More Than 50 cm) |
| Package Level 1 Units | box 1 piece |
|---|---|
| Package Level 1 Width | 345 mm, 13.58 in |
| Package Level 1 Depth / Length | 445 mm, 17.52 in |
| Package Level 1 Height | 240 mm, 9.45 in |
| Package Level 1 Gross Weight | 14.82 kg, 32.67 lb |
| Package Level 1 EAN | 6417019827636 |
| Shipping weight | 14.12 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 02 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated current of OXB200E3X4QB is 200 A.
The rated operational voltage of OXB200E3X4QB is 200–480 V AC.
The tariff (HS) code on file for OXB200E3X4QB is 853650.
The EAN (GTIN) of OXB200E3X4QB is 6417019827636.
OXB200E3X4QB ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
How phase-sequence, voltage/frequency and temperature monitoring relays let an ATS safely transfer a load onto a standby generator and back.