The Siemens circuit breaker, model 3LD25140TK53, is a robust component designed for high-performance electrical systems. It features a red and yellow 3-pin configuration, supports 35 mm² wire, and is rated for 63 A and 690 V AC. Typical applications include industrial and commercial power distribution for safety and equipment protection.
| Type |
Circuit breaker |
| Number of Positions |
3 |
| AC input frequency |
50 - 60 Hz |
| Breaking Capacity |
1260 A |
| Certification |
CSA, UL, VDE, EAC, CE, LRS |
| Coil Voltage |
690 V |
| Coil voltage (max) |
6000 V |
| Coil voltage (min) |
400 V |
| Colour control element |
Red |
| Cross Section |
35mm² |
| Degree of protection (IP), front side |
IP65 |
| Degree of protection (NEMA) |
Other |
| Depth |
468.5mm |
| Device construction |
Built-in device fixed built-in technique |
| Dim |
(W x H x D) 90 x 106 x 468.5 mm |
| Height |
106mm |
| Interlockable |
TRUE |
| Max. rated operation voltage Ue AC |
690V |
| Misc Attribute |
Emergency stop switch |
| Motor drive integrated |
FALSE |
| Motor drive optional |
FALSE |
| Nominal Current |
63A |
| Nominal current - rounded value |
63A |
| Nominal current output |
63 A |
| Nominal Voltage |
690V AC |
| Number of auxiliary contacts as change-over contact |
0 |
| Number of auxiliary contacts as normally closed contact |
0 |
| Number of auxiliary contacts as normally open contact |
0 |
| Number of Modules |
1 |
| Number of Pins |
3 |
| Number of Poles |
3P |
| Number of switches |
1 |
| Operating Voltage |
690V AC |
| Product colour |
Red, Yellow |
| Rated operation power at AC-23, 400 V |
22kW |
| Rated operation power at AC-3, 400 V |
19kW |
| Rated permanent current at AC-21, 400 V |
63A |
| Rated permanent current at AC-23, 400 V |
43 |
| Rated permanent current Iu |
63A |
| Rated short-time withstand current lcw |
1.26kA |
| Suitable for distribution board installation |
TRUE |
| Suitable for floor mounting |
TRUE |
| Suitable for front mounting 4-hole |
TRUE |
| Suitable for front mounting centre |
FALSE |
| Suitable for intermediate mounting |
TRUE |
| Type of control element |
Short thumb-grip |
| Type of electrical connection of main circuit |
Frame clamp |
| Version as emergency stop installation |
TRUE |
| Version as main switch |
TRUE |
| Version as maintenance-/service switch |
TRUE |
| Version as reversing switch |
FALSE |
| Version as safety switch |
TRUE |
| Voltage release optional |
FALSE |
| Weight |
640 g |
| Width |
90mm |
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