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RMW1 Series Intelligent Universal Circuit Breaker
SNTOOM RMW1 series intelligent universal circuit breaker is designed for 50Hz power distribution networks with a rated voltage up to 660V (690V), used to distribute electrical energy and protect lines and power equipment against overload, undervoltage, short circuit and single-phase grounding faults. It offers intelligent protection, precise selective protection and an open communication interface for four-remote operation.
- Product Model: RMW1-2000/3
- Series: W1 (DW45)
- Type: Intelligent Universal Low Voltage Circuit Breaker
- Frame Size Rated Current (Inm): 2000 A
- Rated Current (In): (400)630, 800, 1000, 1250, 1600, 2000 A
- Number of Poles: 3
- Rated Voltage: up to 660V (690V)
- Rated Frequency: 50 Hz
- Rated Ultimate Short-circuit Breaking Capacity (Icu): 80 kA @400V / 50 kA @690V
- Rated Short-circuit Making Capacity (nIcu): 176 kA (COSΦ0.2) @400V / 105 kA (COSΦ0.25) @690V
- Rated Short-circuit Breaking Capacity (Ics): 50 kA @400V / 40 kA @690V
- Rated Short-time Withstand Current (Icw): 50 kA @400V / 40 kA @690V (1s, delay 0.4s, O-CO)
- Installation Method: Fixed Type / Draw-out Type
- Operation Method: Electric Operation / Manual Operation
- Trip Unit Types: Intelligent overcurrent controller (H/M/L), undervoltage trip unit, shunt trip unit
- Protection Degree: 30
- Utilization Category: Category B or Category A
- Installation Category: IV (main circuit) / III (auxiliary and control circuits)
- Ambient Air Temperature: Upper limit 40°C, lower limit −5°C, 24h average ≤35°C
- Installation Site Altitude: not exceeding 2000 m
- Standards: GB14048.2, IEC947-2
- Warranty: 2 years
Product Overview
SNTOOM RMW1 series intelligent universal circuit breaker (W1 / DW45 series) is designed for 50Hz power distribution networks with a rated voltage up to 660V (690V). It is used to distribute electrical energy and protect lines and power equipment against overload, undervoltage, short circuit and single-phase grounding faults.
Key Features
- Intelligent protection with a high-precision intelligent overcurrent controller (H / M / L).
- Precise selective protection for reliable discrimination between upstream and downstream devices.
- Open communication interface supporting four-remote (telemetry, remote signalling, remote control, remote adjustment) operation.
- Available in fixed type and draw-out type, with electric or manual operation.
Technical Data
Table 1 – Frame and general parameters
| Product Model | RMW1-2000/3 |
| Series | W1 (DW45) |
| Type | Intelligent Universal Low Voltage Circuit Breaker |
| Frame Size Rated Current (Inm) | 2000 A |
| Rated Current (In) | (400)630, 800, 1000, 1250, 1600, 2000 A |
| Number of Poles | 3 |
| Rated Voltage | up to 660V (690V) |
| Rated Frequency | 50 Hz |
| Installation Method | Fixed Type / Draw-out Type |
| Operation Method | Electric Operation / Manual Operation |
| Protection Degree | 30 |
| Utilization Category | Category B or Category A |
| Warranty | 2 years |
Table 2 – Breaking capacity and other ratings
| Rated Ultimate Short-circuit Breaking Capacity (Icu) | 80 kA @400V / 50 kA @690V |
| Rated Short-circuit Making Capacity (nIcu) | 176 kA (COSΦ0.2) @400V / 105 kA (COSΦ0.25) @690V |
| Rated Short-circuit Breaking Capacity (Ics) | 50 kA @400V / 40 kA @690V |
| Rated Short-time Withstand Current (Icw) | 50 kA @400V / 40 kA @690V (1s, delay 0.4s, O-CO) |
| Trip Unit Types | Intelligent overcurrent controller (H/M/L), undervoltage trip unit, shunt trip unit |
| Installation Category | IV (main circuit) / III (auxiliary and control circuits) |
| Standards | GB14048.2, IEC947-2 |
Model Meaning
RMW1 – 2000 / 3: RMW1 is the series (W1 / DW45), 2000 is the frame size rated current (Inm) in amperes and 3 is the number of poles.
Operating Conditions
- Ambient air temperature: upper limit 40°C, lower limit −5°C, 24h average ≤35°C.
- Installation site altitude: not exceeding 2000 m.
- Installation category: IV (main circuit) / III (auxiliary and control circuits).
Intelligent Controller
The breaker is equipped with an intelligent overcurrent controller (H / M / L) together with undervoltage and shunt trip units. It provides overload long-time delay, short-circuit short-time delay, instantaneous and grounding fault protection, and supports an open communication interface for four-remote operation.
Applications
Suitable for low voltage distribution networks in buildings, industry, infrastructure and power distribution systems rated up to 660V (690V), 50Hz.
Note
This product supports customization. Please contact our sales team for specific configurations.
What is the RMW1 Series Intelligent Universal Circuit Breaker?
It is a W1 (DW45) series intelligent universal low voltage circuit breaker designed for 50Hz power distribution networks with a rated voltage up to 660V (690V).
What are the rated current and breaking capacity of model RMW1-2000/3?
It has a 2000A frame with 3 poles; the rated ultimate short-circuit breaking capacity (Icu) is 80kA @400V and 50kA @690V.
Is it available in draw-out type or fixed type?
Both types are available: Fixed type and Draw-out type.
Can the product be customized?
Yes, customization is supported. Please contact our sales team for details.
