Eaton DS7 Soft Starter 480V, 40 HP, 3 Phase, IP20

RS Stock No.:: 123-436
Mfr. Part No.:: 171748 DS7-340SX055N0-L
Manufacturer:: Eaton

Eaton DS7 Soft Starter 480V, 40 HP, 3 Phase, IP20

Subtotal (1 unit)*

PHP82,338.92

(exc. VAT)

PHP92,219.59

(inc. VAT)

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Shipping from October 02, 2026

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Units	Per Unit
1 +	PHP82,338.92

*price indicative

RS Stock No.:: 123-436
Mfr. Part No.:: 171748 DS7-340SX055N0-L
Manufacturer:: Eaton

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Eaton
	Power Rating	40HP
	Product Type	Soft Starter
	Number of Phases	3
	Mount Type	Vertical
	IP Rating	IP20
	Maximum Supply Voltage	480V
	Overall Length	139mm
	Maximum Operating Temperature	40°C
	Overall Width	90mm
	Standards/Approvals	UkrSEPRO, UL E251034, UL, CSA-C22.2 No 0-M91, C-Tick, IEC/EN 60947-4-2, CSA Class No.:321106, CE, UL 508, CSA22.2-14, GB 14048.6, CSA-C22.2 No 14-05
	Series	DS7
	Overall Depth	139mm

	Select all
	Brand Eaton
	Power Rating 40HP
	Product Type Soft Starter
	Number of Phases 3
	Mount Type Vertical
	IP Rating IP20
	Maximum Supply Voltage 480V
	Overall Length 139mm
	Maximum Operating Temperature 40°C
	Overall Width 90mm
	Standards/Approvals UkrSEPRO, UL E251034, UL, CSA-C22.2 No 0-M91, C-Tick, IEC/EN 60947-4-2, CSA Class No.:321106, CE, UL 508, CSA22.2-14, GB 14048.6, CSA-C22.2 No 14-05
	Series DS7
	Overall Depth 139mm

RoHS Status: Exempt

COO (Country of Origin):: GB

Eaton Soft Starter, 40 hp Power Rating, 55A Current Rating - 171748 DS7-340SX055N0-L

This DS7 Soft Starter is a robust motor control solution designed for three-phase asynchronous motors. With a power rating of 40 hp and a maximum operational voltage of 480V AC, it effectively manages the initial start-up of industrial motors, ensuring smooth operation. The unit features a Compact design with dimensions of 139mm in length and width, 175mm in height, and weighs 1.824kg. Built to operate in ambient temperatures ranging from -40°C to +40°C, it is approved to international standards such as CSA and UL.

Features & Benefits

• Designed for high current applications with a 55A rating
• Internal bypass contacts minimise energy losses during operation
• Soft start function reduces mechanical stress on motors
• Quick ramp times enhance control during start-up procedures
• Protection against electrical interference for reliable functionality
• Meets multiple certifications for industrial safety and compliance

Applications

• Used for controlling three-phase motors in industrial settings
• Ideal for needing reduced start-up torque
• Effective in systems requiring suppression of closing transients
• Suitable for ambient conditions up to 2000 m altitude

How does the soft start function impact motor longevity?

The soft start function gradually ramps up the motor speed, reducing mechanical stress and electrical surges, which can enhance motor life expectancy.

What ambient conditions can it operate in without derating?

This unit can function in ambient temperatures from -40°C to +40°C, ensuring reliable performance across various environments.

Can it be used with existing motor protection devices?

Yes, it is compatible with external reversing starter solutions and motor protection devices to enhance operational safety.

What sort of control supply voltage does it require?

It operates at a control supply voltage of 24 V AC or DC, facilitating easy integration into existing systems.

Is it suitable for use in harsh industrial environments?

Its IP20 rating and built-in self-protection features make it well-suited for many industrial environments, providing necessary protection without compromising performance.