Siemens HJD62B400 Molded Case Circuit Breaker
- 400A
- 2 Pole
- Unit Mount
Quantity
Siemens HJD62B400 - 400A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
The HJD62B400 is a 2-pole, 400A molded case circuit breaker from Siemens' Sentron series. Built for robust commercial and industrial applications, it provides reliable overcurrent protection for heavy-duty electrical systems. This unit mount MCCB installs into Siemens P4 and P5 panelboards, SB switchboards, and motor control centers. Featuring a JD frame and an interchangeable thermal-magnetic trip unit, it delivers long-time and instantaneous (LI) protection with a 65kA rating at 480VAC.Specifications
| Brand | Siemens |
|---|---|
| Series | HJD6 |
| Amperage | 400A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC, 30kA @ 250VDC |
| Frame Type | JD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P4, P5 Panelboards, SB Switchboards, Motor Control Centers, Legacy Sentron Panelboards |
| Wire Gauge | 3/0 AWG-500 kcmil (Cu), 4/0 AWG-500 kcmil (Al) |
| Max Wire | 500 kcmil |
| Min Wire | 3/0 AWG (Cu), 4/0 AWG (Al) |
| 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, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Interchangeable Trip Unit, 2-Pole in 3-Pole Housing |
Product FAQs
6 answersWhat panelboards and switchboards are compatible with the HJD62B400?
This breaker is designed for use in Siemens P4 and P5 panelboards, SB switchboards, motor control centers, and legacy Sentron panelboards.
What wire sizes are accepted by the lugs on the HJD62B400?
The standard lugs accept 3/0 AWG to 500 kcmil copper wire, or 4/0 AWG to 500 kcmil aluminum wire.
Does the HJD62B400 feature an adjustable trip setting?
Yes, it features a thermal-magnetic trip unit with a fixed thermal element for long-time protection and an adjustable magnetic element for instantaneous short-circuit protection.
What is the difference between the JD62B400 and the HJD62B400?
The HJD62B400 is the high-interrupting version of the standard JD62B400. The HJD62B400 provides a 65kAIC rating at 480VAC, whereas the standard JD62B400 is rated for 35kAIC at 480VAC.
Can the HJD62B400 be used in DC applications?
Yes, this breaker is rated for use in 250VDC applications with an interrupting capacity of 30kAIC.
How does the HJD62B400 mount into a panel?
It is a unit-mount breaker that uses a bolt-on connection to secure directly to the panel bus.
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