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3KD3840-0PE20-0
Siemens 3KD3840-0PE20-0 available at EU Automation. Get in touch today for a quick price.
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens 3KD3840-0PE20-0 is a SENTRON 3KD switch disconnector designed for dependable isolation and control of industrial electrical circuits. This 4-pole, Size 3 unit is rated at 250 A and features a front operating mechanism positioned centrally, with ON/OFF indication via a door-coupling rotary operating arrangement. Supplied as a basic unit without handle, it uses flat terminals and is intended for fixed mounting in control panels, distribution boards, and machinery power systems.
Built for demanding low-voltage applications, the 3KD3840-0PE20-0 supports use as a main switch, switch disconnector, emergency off switch, and maintenance isolation switch. It offers a rated insulation voltage of 1,000 V, 12 kV surge voltage resistance, and operational performance up to 160 kW at AC-23A, 500 V. The device has a typical mechanical service life of 15,000 operating cycles and provides robust short-circuit performance when used with appropriate line-side protection.
With dimensions of 164 mm height, 234 mm width, and 93.5 mm depth, this Siemens switch disconnector is suitable for installations requiring compact, reliable circuit isolation. It supports a wide range of copper and aluminium conductor connections using lugs or busbar arrangements, and can be mounted in any position. Operating temperature capability from -25 °C to 70 °C makes it suitable for varied industrial environments across Canada.
Built for demanding low-voltage applications, the 3KD3840-0PE20-0 supports use as a main switch, switch disconnector, emergency off switch, and maintenance isolation switch. It offers a rated insulation voltage of 1,000 V, 12 kV surge voltage resistance, and operational performance up to 160 kW at AC-23A, 500 V. The device has a typical mechanical service life of 15,000 operating cycles and provides robust short-circuit performance when used with appropriate line-side protection.
With dimensions of 164 mm height, 234 mm width, and 93.5 mm depth, this Siemens switch disconnector is suitable for installations requiring compact, reliable circuit isolation. It supports a wide range of copper and aluminium conductor connections using lugs or busbar arrangements, and can be mounted in any position. Operating temperature capability from -25 °C to 70 °C makes it suitable for varied industrial environments across Canada.
| Specification | Description |
|---|---|
| Manufacturer | Siemens |
| Part Number | 3KD3840-0PE20-0 |
| Alternative Part Number | 3KD38400PE200 |
| Product Range | SENTRON |
| Product Type | 3KD switch disconnector |
| Device Design | Switch |
| Rated Operational Current | 250 A |
| Number of Poles | 4-pole |
| Switch Disconnector Size | Size 3 |
| Mounting Type | Fixed mounting |
| Operating Mechanism | Front operating mechanism, centre-mounted |
| Switch Position Indicator | Door-coupling rotary operating mechanism with ON-OFF indication |
| Actuating Element | Supplied without handle |
| Terminal Type | Flat terminal connection for main current circuit |
| Rated Insulation Voltage | 1,000 V |
| Rated Surge Voltage Resistance | 12 kV |
| Overvoltage Category | Category IV |
| Pollution Degree | 3 |
| Rated Operating Power | 160 kW at AC-23 A, 500 V |
| Mechanical Service Life | 15,000 operating cycles typical |
| Electrical Endurance | 1,000 operating cycles at AC-23 A, 690 V; 1,000 operating cycles at DC-23 A, 440 V |
| Short-Time Withstand Current | 13 kA for 1 second at 1,000 V AC / 440 V DC |
| Short-Circuit Making Capacity | Minimum 36 kA without fuse link |
| Conditional Short-Circuit Current | 65 kA at 415 V with moulded case circuit breaker; 100 kA at 500 V and 690 V with gG fuse |
| Power Loss | 6 W per pole; 24 W per device at conventional rated thermal current |
| Degree of Protection | IP00; IP20 with closed switch and cover or cable lug cover |
| Auxiliary Contact Provision | Prepared for auxiliary switch extension, with up to 6 NC and 6 NO contacts |
| Suitable Applications | Main switch, switch disconnector, emergency off switch, safety switch, and maintenance/isolating switch duties |
| Copper Conductor Connection | Stranded conductor with lug: 1 x 6–240 mm² or 2 x 6–150 mm² to DIN 46234; 1 x 16–185 mm² or 2 x 16–150 mm² to DIN 46235 |
| Aluminium Conductor Connection | Stranded conductor with lug: 1 x 25–240 mm² or 2 x 25–120 mm² |
| Copper Busbar Connection | 1 x 30 x 10 mm² |
| Height | 164 mm |
| Width | 234 mm |
| Depth | 93.5 mm |
| Net Weight | 3,540 g |
| Mounting Position | Any |
| Fastening Method | Screw fixing |
| Operating Temperature Range | -25 °C to 70 °C |
| Storage Temperature Range | -50 °C to 80 °C |
| Reference Code | Q according to IEC 81346-2 |
What type of device is this?
This is a SENTRON 3KD switch disconnector designed for fixed mounting. It is a 4-pole, Size 3 unit with a 250 A operational current rating and a front operating mechanism.
What current rating does this switch disconnector have?
The device has an operational current rated value of 250 A, making it suitable for higher-current low-voltage isolation and switching applications.
How many poles does this unit have?
This switch disconnector has 4 poles, allowing it to isolate four conductors in a compatible electrical installation.
Does this unit include an operating handle?
No. The 3KD3840-0PE20-0 is supplied as a basic unit without a handle. It uses a front operating mechanism with a door-coupling rotary ON-OFF switch position indication arrangement.
What type of terminals does this device use?
The main current circuit uses flat terminals. It can accommodate suitable copper or aluminium conductors with lugs, depending on the conductor size and configuration.
What is the rated insulation voltage?
The rated insulation voltage is 1,000 V, and the rated surge voltage withstand value is 12 kV.
What is the short-time withstand current rating?
The short-time withstand current, Icw, is rated at 13 kA for 1 second at 1,000 V AC or 440 V DC.
What protection rating does the device have?
The base device is rated IP00. With a closed switch and suitable cover or cable lug cover, the rating can be IP20.
What are the operating temperature limits?
The device is rated for operation from -25 °C to 70 °C. For storage, the permitted temperature range is -50 °C to 80 °C.
What are the approximate dimensions and weight?
The unit measures approximately 164 mm high, 234 mm wide, and 93.5 mm deep. Its net weight is approximately 3,540 g.
Can this device be used as a main switch?
Yes. The datasheet lists this device as suitable for use as a main switch, switch disconnector, emergency off switch, safety switch, and maintenance switch.
What is the typical mechanical service life?
The typical mechanical service life is 15,000 operating cycles, with electrical endurance ratings specified for AC-23 A and DC-23 A duty categories.
- Main switch applications in industrial control panels and machinery
- Switch-disconnector use for isolating electrical circuits during maintenance
- Emergency-off switching arrangements where a 4-pole 250 A device is required
- Maintenance and repair isolator installations for low-voltage power distribution
- Front-operated panel mounting with door-coupling rotary operation
- Isolation of three-phase loads with neutral switching in commercial and industrial systems
- Power switching for motors and equipment rated up to AC-23A duty
- Distribution board installations requiring a fixed-mounting switch disconnector
- Control cabinet applications using flat terminal connections and lugged conductors
- Industrial plant upgrades where SENTRON 3KD switch disconnectors are specified
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
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