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Shanghai Renmin RMM5E-250S/3400 250A(BSE250) Molded Case Circuit Breaker
Brand:
Series:
RMM5E
Protection Type:
Power distribution protection, motor protection
How It Works:
Manual
Frame Current:
250A
Tripping Mode:
Electronic
Protection Function:
LSI
Wiring Method:
Front panel wiring
Poles:
3P
Rated Voltage:
400VAC
Installation:
Fixed
Trip Unit:
BSE250
Rated Current of Release:
250A
Breaking Capacity:
65KA
Model:
RMM5E-250S/3400 250A(BSE250)
Order Number:
Description:
Shanghai Renmin Molded Case Circuit Breaker RMM5E-250S/3400 250A(BSE250),LSI,Distribution Protection,Motor Protection,65KA,250A,Fixed,Manual,3P
Product parameters
| Product attributes | Attribute value | Filter product attributes |
|---|---|---|
| Brand： | Shanghai Renmin | |
| Series： | RMM5E | |
| Appendix： | - | |
| Protection Type： | Power distribution protection, motor protection | |
| How It Works： | Manual | |
| Frame Current： | 250A | |
| Tripping Mode： | Electronic | |
| Protection Function： | LSI | |
| Wiring Method： | Front panel wiring | |
| Poles： | 3P | |
| Rated Voltage： | 400VAC | |
| Installation： | Fixed | |
| Trip Unit： | BSE250 | |
| Rated Current of Release： | 250A | |
| Breaking Capacity： | 65KA |
Products with the same attribute : 0
Show details
Series Overview
RMM5E Electronic Molded Case Circuit Breaker
Application
The RMM5E series Molded Case Circuit Breakers (hereinafter referred to as "breaker") are suitable for circuits with AC 50Hz, rated operational voltage up to 690V, and rated operational current up to 630A. They are used for infrequent switching and motor starting. The breaker provides overload, short-circuit, and undervoltage protection to prevent damage to circuits and power equipment.
Operating Conditions
● Ambient temperature: -5°C to +40°C; average value over 24 hours not exceeding +35°C.
● Atmospheric conditions: Relative humidity ≤50% at +40°C; higher humidity is permissible at lower temperatures (e.g., 90% at +20°C). Special measures must be taken for occasional condensation due to temperature changes.
● Pollution degree: Level 3
● Altitude: Installation altitude ≤2000m
Standards
● GB/T 14048.2
● IEC 60947-2
Features
● Application: Power distribution, motor protection
● Number of poles: 3-pole, 4-pole
● Operation modes: Direct operation via handle, electrical operation, rotary handle operation
● Tripping unit type: Intelligent overcurrent release
● Connection methods: Front-mounted terminals, rear-mounted terminals, extended connection
● Installation methods: Fixed type, plug-in type
Accessories
Auxiliary Switch
● Provides remote indication of breaker status.
● Used for indication, electrical interlocking, relay control, etc.
● Each auxiliary switch has one NO (normally open) and one NC (normally closed) contact.
● RMM5E-63/160/250 supports up to two auxiliary switches; RMM5E-630 supports up to six.
● Complies with GB/T 14048.5.
Function: Indicates breaker status during normal operation or after faults:
● ON/OFF: Indicates contact position.
Terminal Marking:
● Group 1: F11 (common), F12 (break contact), F14 (make contact).
● Group 2: F21 (common), F22 (break contact), F24 (make contact).
● Subsequent groups follow the same pattern (F31, F32, etc.).
Alarm Switch
● Signals faults such as overload, short-circuit, undervoltage, or free tripping.
● Two alarm switches: First activates upon tripping; second activates during overcurrent tripping.
● RMM5E series supports up to two alarm switches per breaker.
● Complies with GB/T 14048.5.
Function: Trip indication due to:
● Overload; short-circuit; earth fault; voltage coil-induced tripping; trip button press.
Terminal Marking:
● Group 1: B11 (common), B12 (make contact), B14 (break contact).
● Group 2: B21 (common), B22 (break contact), B24 (make contact).
Shunt Release
● Enables remote breaker tripping.
● Reliably operates at 70%–110% of rated control supply voltage.
● Electrically actuated for remote/automatic control.
● Only one shunt release or undervoltage release can be installed per breaker.
● Suitable for intermittent duty; requires series-connected auxiliary switch if powered continuously.
Function: Automatically trips breaker when energized. Trips when voltage U > 0.7Us.
Undervoltage Release
● Disconnects circuits during low voltage to protect loads.
● Only one undervoltage release or shunt release can be installed per breaker. Requires power to reset/close.
Function:
● Trips when supply voltage is between 0.35Us and 0.7Us.
● Prevents closing when U < 0.35Us.
● Ensures closing when U > 0.85Us.
Motorized Operating Mechanism
● Enables infrequent circuit switching/motor starting via manual or electrical operation.
Manual Operating Mechanism
● Uses a rotary handle for closing, opening, and resetting. Suitable for panel operation in drawer-type cabinets. RMM5E adopts a rotary mechanism.
Built-in Communication Module
● RMM5E-160/250/630 supports built-in communication via integrated Modbus-RTU protocol in the overcurrent release.
● Requires dedicated communication cable between the release’s interface and host computer.
● Compatible release models:
- bse160c, bse163c, bse250c, bse251c, bse253c
- bse630c, bse631c, bse633c
Technical Parameters:
● Protocol: Modbus-RTU
● Baud rate: 2.4k, 4.8k, 9.6k (default), 19.2kbps
● Parity: None, odd, even
● Interface: RS485
● Address: 1–255 (default: 1; configurable via host software)
● Medium: Shielded twisted pair
● Power: 24V DC, ≤5W
Functions:
● Basic:
- Uploads breaker device code.
- Uploads overcurrent release parameter settings.
- Uploads real-time current values per pole.
● Extended:
- Function 1: Indicates ON/OFF status (requires auxiliary switch).
- Function 2: Indicates trip status (requires alarm switch).
- Function 3: Remote ON/OFF/trip control + status monitoring (requires motorized mechanism, auxiliary switch, and alarm switch).
DC1/DC4 Power Module
● Provides 24V DC power for communication-enabled breakers via a communication hub.
● DC1: For 220V/50Hz or 380V/50Hz AC input (specify voltage).
● DC4: For 220V DC input.
● Mounting: 35mm standard rail or screws.
Rachel
Industrial Control Sales Specialist: Focuses on delivering high-performance, cost-effective industrial control products. Offers end-to-end one-stop procurement support—covering rapid quotation, streamlined order fulfillment, and responsive after-sales service—to simplify clients’ procurement processes.
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