The 1R8BRG1NS1 Relay is a Buchholz relay manufactured by Comem (ABB), designated as model BR80 and complying with the IEC 60076-22-1 standard. This device features one changeover/switch trigger and a pressure flap. Designed for industrial operating environments, it offers an IP65 degree of protection, a C4 medium corrosion category finish in RAL7032, and an NBR gasket rated for temperatures ranging from -40°C to 120°C. The mechanical condition is rated at 4M4. For electrical connections, it includes an M25x1.5 cable gland and is configured with alarm and trip contacts according to the wiring diagram specifying one normally open contact for the trip circuit. The unit is built with an 8-hole mounting flange. The 1R8BRG1NS1 is engineered for liquid-immersed transformer protection applications.
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| Manufacturer | Comem (ABB) |
|---|---|
| Country | |
| Part number | 1R8BRG1NS1 |
| Inner Code | 4259564 |
| Product type | Buchholz Relay Comem BR80 |
|---|---|
| Document ID | 1ZBG000232-PBCH |
| Model | BR80 |
| Standard | IEC 60076-22-1 |
| Trigger / Pressure Flap | 1 M/S TRIGGER. PRESSURE FLAP |
| Degree of Protection | IP65 |
| Wiring Diagram | G:ALARM C.:1xNO,TRIP C.:2xNO |
| Corrosion Category | C4 MEDIUM RAL7032 |
| Gasket Material & Temperature Range | NBR (-40°C / 120°C) |
| Mechanical Condition | 4M4 |
| Cable Gland | M25X1.5 |
| Flange | FLANGE WITH 8 HOLES |