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Description
LT3SM00MMain Range of product LT3 Device short name LT3SM Product or component type Thermistor protection units [Uc] control circuit voltage 115 230 V AC 50 60 Hz Reset Manual Complementary Control circuit voltage limits 0. 85 1. 1 Uc Contacts type and composition 1 NC + 1 NO dual voltage [Ith] conventional free air thermal current 5 A for output control relay [Ui] rated insulation voltage Output control relay: 500 V AC [Ue] rated operational voltage 250 V AC
Main
| Range of product | LT3 |
| Device short name | LT3SM |
| Product or component type | Thermistor protection units |
| [Uc] control circuit voltage | 115...230 V AC 50/60 Hz |
| Reset | Manual |
Complementary
| Control circuit voltage limits | 0.85...1.1 Uc |
| Contacts type and composition | 1 NC + 1 NO dual voltage |
| [Ith] conventional free air thermal current | 5 A for output control relay |
| [Ui] rated insulation voltage | Output control relay: 500 V AC |
| [Ue] rated operational voltage | 250 V AC 50/60 Hz for output control relay |
| Signalling function | Fault indication Voltage indication |
| Control type | Manual test Manual reset |
| Probe interchangeability | Label mark A conforming to IEC 60034-11 |
| Hold-in power consumption in W | 1 W |
| Hold-in power consumption in VA | 2.5 VA |
| Resistance | 1500…1650 Ohm reset 2700…3100 Ohm tripping |
| Number of probes | 0…6 |
| Input voltage | < 2.5 V (1500 Ohm) for probe < 7.5 V (4000 Ohm) for probe conforming to IEC 60034-11 |
| Maximum short circuit detection resistance | 20 Ohm |
| Condition of use | Connection of probes 1000 m >2.5 mm² Connection of probes 500 m >1.5 mm² |
| [Uimp] rated impulse withstand voltage | 2.5 kV |
| Rated power in VA | 100 VA at 220 V - electrical durability: 500000 cycles |
| Breaking capacity | 2 A at 24 V DC DC-13 3 A at 250 V AC AC-16 6 A at 120 V AC AC-16 |
| Connections - terminals | Power circuit: cage type connector 1 cable(s) 0.75…2.5 mm²flexible with cable end Power circuit: cage type connector 1 cable(s) 0.75…2.5 mm²solid with cable end Power circuit: cage type connector 1 cable(s) 1…2.5 mm²flexible without cable end Power circuit: cage type connector 1 cable(s) 1…2.5 mm²solid without cable end Power circuit: cage type connector 2 cable(s) 0.75…2.5 mm²flexible with cable end Power circuit: cage type connector 2 cable(s) 0.75…2.5 mm²solid with cable end Power circuit: cage type connector 2 cable(s) 1…2.5 mm²flexible without cable end Power circuit: cage type connector 2 cable(s) 1…2.5 mm²solid without cable end |
| Tightening torque | 0.8 N.m |
| Height | 100 mm |
| Width | 22.5 mm |
| Depth | 100 mm |
| Net weight | 0.22 kg |
Environment
| Standards | IEC 60034-11 VDE 0660 |
| Product certifications | LROS (Lloyds register of shipping) |
| IP degree of protection | IP20 conforming to IEC 60529 IP20 conforming to VDE 0106 |
| Ambient air temperature for operation | -25…60 °C |
| Ambient air temperature for storage | -40…85 °C conforming to IEC 60068-2-2 -40…85 °C conforming to IEC 60068-2-2 |
| Operating altitude | <= 1500 m without derating in temperature > 1500...3000 m with derating in temperature |
| Vibration resistance | 1 gn 25...150 Hz conforming to IEC 60068-2-6 2.5 gn 2...25 Hz conforming to IEC 60068-2-6 |
| Shock resistance | 5 gn 11 ms conforming to IEC 60068-2-27 |
| Electromagnetic compatibility | Resistance to electrostatic discharge level 3 conforming to IEC 61000-4-2 Resistance to fast transient level 3 conforming to IEC 61000-4-4 Surge resistance 1.2/50-8/20 level 4 conforming to IEC 61000-4-5 Susceptibility to electromagnetic fields level 3 conforming to IEC 61000-4-3 Immunity to microbreaks and voltage drops conforming to IEC 61000-4-11 |
Offer Sustainability
| Sustainable offer status | Green Premium product |
| REACh Regulation | REACh Declaration |
| EU RoHS Directive | Compliant 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
4.6 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Solid option at the price point.
Color: Brick Melange, Size: XX-Large
I love these quarter-zip pullovers. I bought this one as a gift, but I personally own two others myself, which should say a lot. They’re comfortable, lightweight, and extremely versatile. I wear mine for golf, casual office days, and layered when it’s cooler out—they pair well with just about anything.
For the price point, they really can’t be beat. The look and feel are comparable to options that cost significantly more. Great value, great performance, and a sharp, clean style. I’ll likely keep buying more.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
★★★★★ 4
GOOD QUALITY
Color: Dark Khaki Melange, Size: Large
GOOD FIT AND VERY GOOD QUALITY I WILL BE BYING MORE.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
★★★★★ 5
Great color and material
Color: Light Blue Melange, Size: Large
Maelreg is becoming my goto for clothing. They use really good quality material and a great look and price. Maelreg continues to impress me, I've now purchased 6-8 of their shirts/hoodies and 2 pair of joggers. I really like them all.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2026
★★★★★ 5
Hubby’s Fave!
Color: Wistful Mauve Melange, Size: XX-Large, Color: Wistful Mauve Melange, Size: XX-Large
My husband lives in these comfortable performance quarter zips by Maelreg! He says they’re warm in the cool months, they fit great, can be worn with just about any slacks, joggers, or shorts. They come in many different colors and they fit the tall guys like my husband, whose 6’4” He orders 2XL.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
★★★★★ 5
Love them!
Color: Lavender Melange, Size: X-Large
True to size I wear a 2XL they fit great material is nice. perfect for the golf course or business casual. I have 4 different colors and always get compliments! Will definitely get more.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
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