RS PRO 4A, 6.3 A Motor Protection Circuit Breaker, 690V, 60 °C, -25 °C
- RS Stock No.:
- 121-6852
- Brand:
- RS PRO
Subtotal (1 unit)*
£39.16
(exc. VAT)
£46.99
(inc. VAT)
FREE delivery for orders over £60.00
In Stock
- 82 unit(s) ready to ship
- Plus 15 unit(s) ready to ship from another location
- Plus 50 unit(s) shipping from 11 September 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £39.16 |
*price indicative
- RS Stock No.:
- 121-6852
- Brand:
- RS PRO
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | RS PRO | |
| Product Type | Motor Protection Circuit Breaker | |
| Current Rating | 4, 6.3A | |
| Motor Protection Component | Circuit Breaker | |
| Supply Voltage | 690V | |
| Motor Protection System | Motor Protection Circuit Breaker | |
| Series | RS PRO | |
| Sensing Type | Current | |
| Overall Length | 45mm | |
| Overall Width | 89.5mm | |
| IP Rating | IP20, IP40 | |
| Overall Depth | 78.5mm | |
| Minimum Operating Temperature | -25°C | |
| Maximum Operating Temperature | 60°C | |
| Standards/Approvals | UL 508, RoHS, IEC/EN 60947-2, CSA | |
| Number of Poles | 3 | |
| Select all | ||
|---|---|---|
Brand RS PRO | ||
Product Type Motor Protection Circuit Breaker | ||
Current Rating 4, 6.3A | ||
Motor Protection Component Circuit Breaker | ||
Supply Voltage 690V | ||
Motor Protection System Motor Protection Circuit Breaker | ||
Series RS PRO | ||
Sensing Type Current | ||
Overall Length 45mm | ||
Overall Width 89.5mm | ||
IP Rating IP20, IP40 | ||
Overall Depth 78.5mm | ||
Minimum Operating Temperature -25°C | ||
Maximum Operating Temperature 60°C | ||
Standards/Approvals UL 508, RoHS, IEC/EN 60947-2, CSA | ||
Number of Poles 3 | ||
- COO (Country of Origin):
- SI
RS PRO 4 A → 6.3 A Motor Protection Circuit Breaker
Limit damage to your motor while it is operating with this motor protection switch from the RS PRO range. When issues occur, such as vibration or excess torque, it acts as a circuit-breaker. It's mainly used in industrial settings, including factories and workshops.
This easy-to-install switch can be mounted horizontally or vertically on a 35 mm DIN (Deutsches Institut für Normung, or the German Institute of Standardisation) rail. It has a current range of 4 A to 6.3 A, a voltage rating of 690 V and a breaking capacity of 100 kA at 230 V. The motor protection switch will automatically reset at current and thermal and magnetic releases.
This component is part of the RS PRO MS32 series of professional motor switches. It's 45 mm long, 78.5 mm deep and 89.5 mm wide and has screw terminations.
Features and Benefits
• Motor protection switch
• Breaking capacity of 100 kA @ 230 V
• Three pole
• Current range of 4 to 6.3 A
• Voltage rating of 690 V
• Screw terminals
• Automatic reset method
• Dimensions of (L) 45 mm x (D) 78.5 mm x (W) 89.5 mm
• RoHS compliant for minimal hazardous materials
• Packed in conditions that meet ANSI/ESD S20.20:2014 and BS EN 61340-5-1:2007 for electrostatic control standards
RS PRO
RS PRO is our own brand range and brings you a wide range of high-quality, great value products offering you more choice. Trusted by engineers all over the world, every part of every RS PRO product has been rigorously tested against demanding industry standards; they’re only given the RS PRO Seal of Approval if we’re confident of their exceptional quality, which means you can be confident too.