Better World

Siemens 40 A SIRIUS 3RV Motor Protection Circuit Breaker, 690 V

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£155.31

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£186.37

(inc. VAT)

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RS Stock No.:
755-2898
Distrelec Article No.:
300-55-754
Mfr. Part No.:
3RV2021-4FA10
Brand:
Siemens
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Brand

Siemens

Current Rating

40 A

Range

SIRIUS 3RV

Motor Protection Component

Circuit Breaker

Supply Voltage

690 V

Series

3RV2

Overall Length

97mm

Overall Width

45mm

Overall Depth

91mm

Minimum Operating Temperature

-20°C

Maximum Operating Temperature

+40°C

Terminal Type

Screw

Breaking Capacity

2 kA

Better World Claim

Extended product life, Low carbon manufacture

Better World Product

Yes

Size

S0

Horse Power Rating

30HP

COO (Country of Origin):
DE

Motor Circuit Breakers 3RV20


Circuit-breaker for motor protection
Screw connection/ Sping clamp
Class 10
Impulse voltage resistance 6 kV
Insulation voltage 690V
Real loss power only 6/7W
Standard switching capacity
Approvals: CE / UL / CSA

Siemens Motor Protection Circuit Breaker, 40A - SIRIUS Series - 3RV2021-4FA10


This circuit breaker from Siemens is a safety device designed to protect against damage caused by overcurrent and short circuits. The switching device works by interrupting the flow of fault current to the circuit or equipment. As it has a power rating of 18.5kW at an operating voltage of 440V, this component can be used with heavy-duty industrial motors. It has highly sensitive contacts that quickly detect voltage and current surges and cut power immediately for enhanced electrical safety. Minimal power loss of about 7W means it's also energy-efficient. Units like this one are essential in industrial applications, such as manufacturing facilities where large conveyors are used.

• Compact dimensions of 97 (length) x 45 (width) x 91mm (depth)
• Wide operating temperature range of -20°C to +40°C for use in demanding environments
• Long mechanical service life of 100,000 switching cycles for long-lasting performance
• Screw connection for ease of installation

Can this component be installed in any environment?


The circuit breaker shouldn't be installed in high-altitude locations as its ability to cool decreases with higher air density, increasing the risk of overheating. As the component isn't waterproof, it should only be used in dry environments.

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