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Description
ATS48C14QMain Range of product Altistart 48 Product or component type Soft starter Product destination Asynchronous motors Product specific application Heavy duty industry and pumps Device short name ATS48 Power supply voltage 230 415 V 15 10 % Motor power kW 55 kW at 230 V connection to the motor delta terminals for severe applications 55 kW at 400 V connection in the motor supply line for severe applications 75 kW at 230 V connection to the motor delta
Main
| Range of product | Altistart 48 |
| Product or component type | Soft starter |
| Product destination | Asynchronous motors |
| Product specific application | Heavy duty industry and pumps |
| Device short name | ATS48 |
| Power supply voltage | 230...415 V - 15...10 % |
| Motor power kW | 55 kW at 230 V connection to the motor delta terminals for severe applications 55 kW at 400 V connection in the motor supply line for severe applications 75 kW at 230 V connection to the motor delta terminals for standard applications 75 kW at 400 V connection in the motor supply line for standard applications 90 kW at 400 V connection to the motor delta terminals for severe applications 110 kW at 400 V connection to the motor delta terminals for standard applications 30 kW at 230 V connection in the motor supply line for severe applications 37 kW at 230 V connection in the motor supply line for standard applications |
| Power dissipation in W | 306 W for severe applications 391 W for standard applications |
| Utilisation category | AC-53A |
| Type of start | Start with torque control (current limited to 5 In) |
| Icl nominal current | 140 A for connection in the motor supply line for severe applications 140 A for connection in the motor supply line for standard applications 242 A for connection to the motor delta terminals for severe applications 242 A for connection to the motor delta terminals for standard applications |
| IP degree of protection | IP00 |
Complementary
| Assembly style | With heat sink |
| Function available | External bypass (optional) |
| Power supply voltage limits | 195…456 V |
| Power supply frequency | 50...60 Hz - 5...5 % |
| Power supply frequency limits | 47.5...63 Hz |
| Device connection | To the motor delta terminals In the motor supply line |
| Factory setting current | 131 A |
| [Uc] control circuit voltage | 220 - 15 % to 415 + 10 %, 50/60 Hz |
| Control circuit consumption | 30 W |
| Discrete output number | 2 |
| Discrete output type | (LO1) logic output 0 V common configurable (LO2) logic output 0 V common configurable (R1) relay outputs fault relay NO (R2) relay outputs end of starting relay NO (R3) relay outputs motor powered NO |
| Output absolute accuracy precision | +/- 5 % |
| Minimum switching current | 10 mA at 6 V DC for relay outputs |
| Maximum switching current | Logic output 0.2 A at 30 V DC Relay outputs 1.8 A at 230 V AC inductive load, cos phi = 0.5 20 ms Relay outputs 1.8 A at 30 V DC inductive load, cos phi = 0.5 20 ms |
| Discrete input number | 5 |
| Discrete input type | PTC, 750 Ohm at 25 °C (Stop, Run, LI3, LI4) logic, <= 8 mA 4300 Ohm |
| Discrete input voltage | 24 V <= 30 V |
| Discrete input logic | Positive logic Stop, Run, LI3, LI4 at State 0: < 5 V and <= 2 mA at State 1: > 11 V, >= 5 mA |
| Starting current | 0.4...1.3 Icl adjustable |
| Analogue output type | Current output AO: 0-20 mA or 4-20 mA, impedance <500 Ohm |
| Communication port protocol | Modbus |
| Connector type | 1 RJ45 |
| Communication data link | Serial |
| Physical interface | RS485 multidrop |
| Transmission rate | 4800, 9600 or 19200 bps |
| Max nodes number | 31 |
| Protection type | Phase failure: line Thermal protection: motor Thermal protection: starter |
| Marking | CE |
| Type of cooling | Forced convection |
| Operating position | Vertical +/- 10 degree |
| Height | 340 mm |
| Width | 200 mm |
| Depth | 265 mm |
| Net weight | 12.4 kg |
| Motor power range AC-3 | 30…50 kW at 200…240 V 3 phases 55…100 kW at 380…440 V 3 phases 55…100 kW at 200…240 V 3 phases 110…220 kW at 380…440 V 3 phases |
| Motor starter type | Soft starter |
Environment
| Electromagnetic compatibility | Conducted and radiated emissions level A conforming to IEC 60947-4-2 Conducted and radiated emissions level B conforming to IEC 60947-4-2 Damped oscillating waves level 3 conforming to IEC 61000-4-12 Electrostatic discharge level 3 conforming to IEC 61000-4-2 Immunity to electrical transients level 4 conforming to IEC 61000-4-4 Immunity to radiated radio-electrical interference level 3 conforming to IEC 61000-4-3 Voltage/current impulse level 3 conforming to IEC 61000-4-5 |
| Standards | EN/IEC 60947-4-2 |
| Product certifications | CSA UL DNV GOST NOM 117 C-Tick SEPRO CCC TCF |
| Vibration resistance | 1 gn (f= 13…200 Hz) conforming to EN/IEC 60068-2-6 1.5 mm (f= 2…13 Hz) conforming to EN/IEC 60068-2-6 |
| Shock resistance | 15 gn for 11 ms conforming to EN/IEC 60068-2-27 |
| Noise level | 50 dB |
| Pollution degree | Level 3 conforming to IEC 60664-1 |
| Relative humidity | 0…95 % without condensation or dripping water conforming to EN/IEC 60068-2-3 |
| Ambient air temperature for operation | 40…60 °C (with current derating of 2 % per °C) -10…40 °C (without) |
| Ambient air temperature for storage | -25…70 °C |
| Operating altitude | <= 1000 m without > 1000...2000 m with current derating of 2.2 % per additional 100 m |
Offer Sustainability
| Sustainable offer status | Green Premium product |
| REACh Regulation | REACh Declaration |
| EU RoHS Directive | Pro-active compliance (Product out of EU RoHS legal scope) EU RoHS Declaration |
| Mercury free | Yes |
| RoHS exemption information | Yes |
| China RoHS Regulation | China RoHS declaration |
| Environmental Disclosure | Product Environmental Profile |
| Circularity Profile | End of Life Information |
| WEEE | The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins |
Contractual warranty
| Warranty | 18 months |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Authentic Docs for great price!
The boots I purchased were Chelsea 2976 in Nappa leather (not the brown Crazy Horse, but the Black; such nice and soft leather!) and unisex size men's 7/women's 8/EU 39 (I'm normally a women's US 9/EU 40, but that's what fit best--see notes on sizing below).
Considering the price, I was a little skeptical that these were genuinely Dr. Marten's, so I ended up bring them into a store to verify before wearing them--and multiple salespeople, who had worked for the company for 7+ years, said they looked like the real deal to them, which is amazing for the price (I got them when they were $99 online, but $160 in store; may have been a sale...?).
Before ordering, I also visited the store to get the right sizing--Dr. Marten's doesn't sell my normal size in the US (EU 40), so I needed help figuring out what to buy. In the end that was either a women's EU 41 or a unisex 39. Dr. Marten's women's sizes are cut more narrow, so if purchasing women's, I needed a longer shoe to give my toes more space (EU 41, which they say is a women's US 9 but on many shoes EU 41 is a US 9.5 or even US 10). Unisex sizes are wider, so I was fine with a shorter length (EU 39). In the end, the only real difference between the women's sizing and men's sizing on the Chelsea boot was at the ankle; for some reason, the women's 41 had more of a gap at the ankle and I worried that might make it rub/blister more, so I went with unisex sizing. It might also depend on the boot, so I'd say go to the store for sizing before purchasing online.
Once I got them & verified their authenticity, I got a but of things to help with weatherizing them and breaking them in (Dr. Marten's has a great kit! And, double thick socks). I did get a bad blister wearing them too long & uphill on the first day (and I had to get used to their weight; I don't have many heavier shoes). But, I used Compeed patches for the blister (should have put them on to prevent, but it was fine once they were on) and after a week of wearing them a little bit at a time, they are now super comfortable and I love them! Highly recommend!
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Reviewed in the United States on February 19, 2024
★★★★★ 5
Function and style
Size: 11 Women/10 Men, Color: Black Blizzard Wp
Ideal boot for the winter, snow, mud, etc. Protect your feet beautifully, stylishly.
Tip: Wear with two socks to help break in for the first couple weeks.
If you are a half size, round up.
This is the model without laces, makes for easy slip on / slip off for those pesky people who insist on having you take off your shoes at their house! Ha ha, you know who you are.
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Reviewed in the United States on April 13, 2026
★★★★★ 4
Size up for a little bit of heel slip
Size: 9 Women/8 Men, Color: Black Nappa
It’s still a doc and the air sole with bottom out kinda quick but it’s comfortable at first. Size up for a little bit of heel slip so you don’t get heel blisters but not too big of a size jump. Think of it kind of like a cowboy boot size
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Reviewed in the United States on December 30, 2025
★★★★★ 5
Comfy, don't require "breaking in"
Size: 8 Women/7 Men, Color: Dark Brown Valor Wp
Great fit, and both my pairs of Chelsea boots required way less breaking in than other Dr. Martens I own. Hold up to frequent use and I love the fleece lining for colder days.
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Reviewed in the United States on December 29, 2025
★★★★★ 5
Excellent boots
Size: 11 Women/10 Men, Color: Black Nappa
Excellent boots
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026