SIEMENS
SIEMENS 49AB01 Auxiliary Contact 0NO/1NC 10 A 600V
Adds one normally-closed auxiliary contact rated 10 A at 600 V AC to NEMA starters sizes 0 through 4
- Side-mount auxiliary contact simplifies panel layout
- 10 A AC rating handles control-circuit loads
- Single normally-closed contact provides reliable interlock signalling
- 600 V AC maximum voltage suits industrial starters
- Compatible with NEMA sizes 0 through 4 contactors
SIEMENS 49AB01 Auxiliary Contact
This SIEMENS 49AB01 auxiliary contact provides one normally closed circuit for side mounting on NEMA size 0 through 4 starters and contactors. It is designed for control circuits requiring a single break contact rated at 10 amperes and 600 volts AC. Electrical panel builders and maintenance technicians use it to add interlocking or status feedback functions. The unit installs directly onto the side of compatible NEMA devices.
Behaviour under sustained load
The contact is rated for a continuous current of 10 amperes at 600 volts AC in industrial control applications. It maintains circuit integrity during extended operation within these electrical limits on the side of a starter or contactor. The single normally closed configuration opens the control circuit when the main device energises. It is not intended for switching loads beyond the stated current and voltage ratings.
Practical limits of the NEMA interface
This auxiliary contact mounts only on the side of NEMA size 0, 00, 1, 2, 3 and 4 starters and contactors. It adds exactly one normally closed contact with no normally open option available in this model. The 600 volt AC maximum rating defines the upper boundary for control circuit voltage. Builders needing additional normally open contacts or higher pole counts must select a different auxiliary block.
Highlights
- Side-mount auxiliary contact simplifies panel layout
- 10 A AC rating handles control-circuit loads
- Single normally-closed contact provides reliable interlock signalling
- 600 V AC maximum voltage suits industrial starters
- Compatible with NEMA sizes 0 through 4 contactors
Specifications
| Brand | SIEMENS |
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Questions about this item
Does the 10 A auxiliary contact on the 49AB01 generate noticeable heat when energised continuously?
The contact is rated for 10 A at up to 600 V AC; heat rise will depend on the actual load current and the enclosure ventilation around the starter.
What starter or contactor frame must I already have to mount this side-mount auxiliary block?
It fits NEMA size 0, 00, 1, 2, 3 or 4 starters and contactors that accept a side-mount auxiliary contact.
Will the single normally-closed contact on the 49AB01 switch the same 600 V AC circuits as my existing NEMA size 3 starter?
Yes, the contact carries a 600 V AC maximum rating and is designed for use with NEMA size 3 devices among others.
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