The Siemens HNXD63B100 is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 1000 Amps and a voltage rating of 600VAC. It has an interrupting rating of 65kAIC at 480VAC. The HNXD63B100 has a feed-thru connection type and includes long time and instantaneous trip functions.
What does the B in the HNXD63B100 catalog number indicate?
The B signifies that this breaker is supplied without lugs installed. Lug kits must be purchased separately based on your specific wire size and material requirements.
Which lug kits are compatible with the HNXD63B100 circuit breaker?
For 3-pole applications, the Siemens 3TA4N8500 lug kit is commonly used. Other compatible ND-frame lug kits include the TA2K500 and TA3K500, depending on your required wire range and barrel configuration.
What is the difference between the NXD63B100 and the HNXD63B100?
The H in HNXD63B100 designates a high interrupting capacity. The HNXD63B100 is rated for 65kAIC at 480V, whereas the standard NXD63B100 is rated for 50kAIC at 480V.
What types of equipment can the HNXD63B100 be installed in?
This ND-frame breaker is designed for use in Siemens Sentron panelboards, P4 and P5 panelboards, SB1, SB2, and SB3 switchboards, as well as Siemens motor control centers.
How is the thermal-magnetic trip unit configured on the HNXD63B100?
It includes a fixed thermal element for long-time overload protection and an adjustable magnetic element for instantaneous short-circuit protection.
Can the trip unit on the HNXD63B100 be swapped out for a different amperage?
No, the HNXD63B100 is factory assembled with a non-interchangeable trip unit. If a different amperage is required, the entire circuit breaker must be replaced.
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