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Siemens JL63B400 Molded Case Circuit Breaker
- 400A
- 3 Pole
- Bolt-On
Siemens
JL63B400
Molded Case Circuit Breaker
Brand
Siemens
SKU
JL63B400
Quantity
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Siemens JL63B400 - 400A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
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Description
Providing 400A of continuous current, this legacy J-Frame MCCB is engineered for commercial power distribution. It utilizes proven thermal-magnetic trip technology with adjustable magnetic settings for precise protection. Designed for bolt-on installation, it fits perfectly into Siemens P2, P3, P4, and P5 panelboards, as well as older ITE enclosures. Facilities looking to upgrade can substitute this breaker with the newer JD63B400. It boasts a 65kAIC rating at 240V and is HACR rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | JL63B400 |
| Series | JL |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 25kA @ 500VDC |
| Frame Type | JL63 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P2, P3, P4, P5 Panelboards, Legacy ITE Panelboards |
| Wire Gauge | 3/0 AWG - 500 kcmil |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Mechanical Lug Kits |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | UL 489, CSA C22.2 No. 5, NEMA AB-1 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Interchangeable Trip Unit, Trip-Free Mechanism |
Product FAQs
4 answersWhich panelboards are compatible with the JL63B400 breaker?
This bolt-on breaker is designed for use in Siemens P2, P3, P4, and P5 panelboards, as well as legacy ITE panelboards.
What wire size range do the lugs on this breaker accept?
The terminals accommodate wire gauges from 3/0 AWG up to 500 kcmil.
Can the trip settings on the JL63B400 be adjusted?
Yes, this thermal magnetic breaker features a fixed thermal element and an adjustable magnetic trip for the instantaneous function.
Does this breaker support DC voltage applications?
Yes, in addition to its AC ratings, it is rated for up to 500VDC with an interrupting capacity of 25kA.
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