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Siemens, SENTRON, SENTRON Molded Case Circuit Breaker 3-Pole 125A, Breaking Capacity 25 kA, Fixed

RS Stock No.:: 874-4165
Mfr. Part No.:: 3VA1112-3ED36-0AA0
Brand:: Siemens

Siemens, SENTRON, SENTRON Molded Case Circuit Breaker 3-Pole 125A, Breaking Capacity 25 kA, Fixed

Subtotal (1 unit)*

£276.29

(exc. VAT)

£331.55

(inc. VAT)

FREE delivery for orders over £60.00

Stocked by manufacturer

Ready to ship from 02 June 2026

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Units	Per unit
1 +	£276.29

*price indicative

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RS Stock No.:: 874-4165
Mfr. Part No.:: 3VA1112-3ED36-0AA0
Brand:: Siemens

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Siemens
	Range	SENTRON
	Product Type	Molded Case Circuit Breaker
	Series	SENTRON
	Number of Poles	3
	Current Rating	125A
	Breaking Capacity	25kA
	Rated AC Voltage	690V ac
	Mount Type	Fixed
	Rated DC Voltage	500V dc
	Terminal Type	Box
	Width	88mm
	Standards/Approvals	CE
	Depth	88mm
	Height	130mm
	Better World Claim	Extended Product Life, Saves Energy
	Better World Product	Yes
	Reset Actuator Type	Toggle Switch
	Break Time	Instantaneous
	Tripping Mechanism	Thermal Magnetic

	Select all
	Brand Siemens
	Range SENTRON
	Product Type Molded Case Circuit Breaker
	Series SENTRON
	Number of Poles 3
	Current Rating 125A
	Breaking Capacity 25kA
	Rated AC Voltage 690V ac
	Mount Type Fixed
	Rated DC Voltage 500V dc
	Terminal Type Box
	Width 88mm
	Standards/Approvals CE
	Depth 88mm
	Height 130mm
	Better World Claim Extended Product Life, Saves Energy
	Better World Product Yes
	Reset Actuator Type Toggle Switch
	Break Time Instantaneous
	Tripping Mechanism Thermal Magnetic

COO (Country of Origin):: CZ

Siemens 3VA Series MCCB, 125A Current Rating, 690V Rated AC Voltage - 3VA1112-3ED36-0AA0

This moulded case circuit breaker (MCCB) from Siemens is designed to provide outstanding protection and reliability in industrial applications. The 3-pole configuration supports a current rating of 125A, along with an impressive breaking capacity of 25 kA at a maximum voltage rating of 690V. With a fixed mounting style, it ensures stability and durability in any environment.

Features & Benefits

• Thermal-magnetic circuit breaker combines overload and short-circuit protection

• High breaking capacity ensures effective protection against faults

• Designed for three-pole configurations for versatile system integration

• Capable of operating at 690V AC and 500V DC to meet diverse voltage needs

• Quick reset using a toggle switch for user-friendly operation

• Compact design allows easy installation in various industrial settings

Applications

• Used for line protection in electrical panels

• Suitable for industrial automation control systems

• Ideal for protecting motors and machinery from overloads

• Implemented in power distribution systems requiring high reliability

• Utilised in environments with high fault current scenarios

How does this MCCB manage overheating during continuous operation?

The thermal-magnetic mechanism responds to heat generated by excess current, allowing the device to trip and disconnect the circuit, preventing potential damage due to overheating.

What is the operational current range at different temperatures?

At 40°C, the operational current remains at 125A, while at higher temperatures, it gradually decreases to 114A at 70°C, ensuring performance stability under varying thermal conditions.

Can this circuit breaker be retrofitted for specific applications?

While primarily designed for fixed installation, it includes features for neutral conductors and is adaptable for various electrical configurations, though specific retrofitting options may depend on installation conditions.