SEATEC Heavy-Duty Circuit Breaker / 150 to 300 A

Name: Heavy-Duty Circuit Breaker / 150 to 300 A
Brand: SEATEC
Price: 49.95 EUR
Availability: InStock
Rating: 1 (1 reviews)

SVB item number: 34101

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Used on a Jeanneau Sun Odyssey 410

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This heavy duty circuit breaker has been specifically designed to reliably protect electrical systems on board, thus optimally safeguarding against overloads or short circuits. The single-lever operation ensures intuitive and quick control. Product details

only €49.95

VAT inc., ex-works

Fuse value

65 | in stock

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Available variants

SEATEC Circuit Breaker / 30 to 120 A

from €39.95

VAT inc., ex-works

To product

At a glance!

Product data

SVB item number 34101
Description SEATEC - Heavy duty breaker
Fuse value 150 A
Operating voltage 12 V, 24 V, 48 V
Trigger mechanism Thermal
Connection type Threaded bolt
Installation type Surface mounted
Width 58 mm
Height 88 mm
Depth 40 mm

SVB item number 34102
Description SEATEC - Heavy duty breaker
Fuse value 200 A
Operating voltage 12 V, 24 V, 48 V
Trigger mechanism Thermal
Connection type Threaded bolt
Installation type Surface mounted
Width 58 mm
Height 88 mm
Depth 40 mm

SVB item number 34103
Description SEATEC - Heavy duty breaker
Fuse value 250 A
Operating voltage 12 V, 24 V, 48 V
Trigger mechanism Thermal
Connection type Threaded bolt
Installation type Surface mounted
Width 58 mm
Height 88 mm
Depth 40 mm

SVB item number 34104
Description SEATEC - Heavy duty breaker
Fuse value 300 A
Operating voltage 12 V, 24 V, 48 V
Trigger mechanism Thermal
Connection type Threaded bolt
Installation type Surface mounted
Width 58 mm
Height 88 mm
Depth 40 mm

Product details

"Trip Free" design cannot be held "ON" during fault current condition.
Waterproof: Suitable for reliable use even in wet environments
Ignition protected: Safe for installation aboard petrol powered boats

Comfort

Single lever operation: Intuitive and fast control.
Recessed mounting holes: For a clean appearance.
Large clearance around terminal studs: Enables the use of cable lugs with a large cross-section.
Solid M8 connection terminals: Ensure a perfect fit of the cable lugs.
Large lever with vertical/horizontal alignment: clearly indicates the status of the switch (on/off).

Use
Ideal for use in boats, motorhomes, trade and industry.

Technical specifications

Max. Voltage:	48 V DC
Installation:	Surface mounted
Trigger mechanism:	Thermal release, reset via manually moving the lever
Break capacity:	5000 A @ 14V 3000 A @ 28V 1500 A @ 48 V
Operating temperature range:	-40 °C to + 85 °C
Cable connection:	M8 bolts

Product safety

What other SVB customers have to say

100% real reviews

1 customer reviews

1 (out of 1 ratings)

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by Arne L.

5/19/2026 Verified purchase Variant: 34104

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Heavy-duty circuit breakers 300A

The 300A version is unfortunately not convincing in practice (motorhome). The voltage drop across the circuit breaker is very high. At a power output of 1800W and a current of approximately 150A, the Victron inverter (Multiplus 2 3000) immediately shuts down due to insufficient battery voltage. I replaced the circuit breaker with a solid aluminum connector, and 2300W and 180A were no problem. The cause is likely the small contact area, no larger than an M8 spring washer. Cable length under 2m, 70 mm². This is the first SVB product that hasn't lived up to expectations; it happens. The product is being returned.