100-SB10 Allen-Bradley Auxiliary Contact Block

Model: 100-SB10

Brand: Allen-Bradley

Product Type: Auxiliary Contact Block

Product Family: Bulletin 100-C

UPC: 662072612996

Contact Configuration: 1 NO (Normally Open)

Number of Poles: 1

Mounting Type: Side Mounting

Terminal Type: Screw Terminals

Terminal Designation: Sequence Numbering

Contact Arrangement: 13–14 / 43–44

Rated Insulation Voltage: 690 V AC

Minimum Switching Voltage: 17 V

Minimum Switching Current: 10 mA

Contact Compatibility: AC/DC

Compatible Contactor Range: Bulletin 100-C

Recommended Mounting Position: Left side on 100-C09 to 100-C23 contactors

The Allen-Bradley 100-SB10 is a side-mounted auxiliary contact block designed to expand the signaling capability of compatible Bulletin 100-C contactors. It adds one normally open contact to the contactor assembly, allowing an additional electrical signal to be incorporated into an external control or monitoring circuit.

Its 1NO configuration is identified by the 13–14 and 43–44 terminal designations. The sequence numbering arrangement is particularly relevant when selecting auxiliary contacts for contactors with different mounting positions and terminal-numbering conventions.

Unlike a complete contactor, the 100-SB10 does not switch the main motor power circuit. It provides an auxiliary contact for control-circuit functions such as interlocking, operating-state indication and associated electrical logic.

• Auxiliary Contact Expansion: Adds one normally open contact to a compatible contactor assembly without changing the main contactor's power-pole configuration.
• Control Circuit Signaling: Provides an additional switching point for external electrical control and indication circuits.
• Contactor Status Integration: Allows an auxiliary contact state to be incorporated into associated monitoring or control logic.
• Sequence Terminal Identification: Uses the 13–14 and 43–44 numbering designations to identify its auxiliary contact connections.
• Side-Mounted Installation: Attaches directly to the side of compatible Bulletin 100-C contactors using the accessory mounting arrangement.

The 100-SB10 is used in contactor-based motor control assemblies where an additional normally open signaling contact is required.

• Motor Starter Panels: Adds an auxiliary contact for control-circuit interlocking and operating-state logic.
• Industrial Control Cabinets: Provides an extra switching point for electrical control sequences.
• Contactor Status Indication: Supplies a contact signal for compatible indicator or monitoring circuits.
• Machine Control Systems: Supports auxiliary switching requirements in machinery using Bulletin 100-C contactors.
• Contactor Maintenance: Replaces an existing 100-SB10 accessory when the contact configuration and mounting arrangement match.

The 100-SB10 belongs to the Allen-Bradley Bulletin 100-C accessory range. Rockwell Automation also lists it within the MCS 100-C, 104-C, 700-CF and 700S-CF accessory family. Confirm the exact contactor model and manufacturer compatibility information before installation.

One installation detail deserves particular attention: for Bulletin 100-C09 through 100-C23 contactors, Rockwell recommends left-side mounting because of the double terminal-numbering arrangement. This is important when matching an existing assembly or planning the auxiliary contact wiring.

The 100-SB10 provides one NO contact only. If the application requires a normally closed contact or a combination of NO and NC contacts, a different auxiliary contact block must be selected.

 

 

Related Auxiliary Contact Models

Model	Contact Configuration	Mounting
100-SB01	1 NC	Side
100-SB10	1 NO	Side
100-SB02	2 NC	Side
100-SB11	1 NO + 1 NC	Side
100-SB20	2 NO	Side

 

These models provide different contact arrangements within the Bulletin 100-C accessory range. They should be selected according to the required control-circuit logic rather than treated as interchangeable versions.

How many contacts does the 100-SB10 provide?

It provides one normally open auxiliary contact (1NO), with no normally closed contact.

Is the 100-SB10 a front-mounted accessory?

No. It is designed for side mounting on compatible contactors.

What is the difference between 100-SB10 and 100-SB11?

The 100-SB10 provides one NO contact, whereas the 100-SB11 provides one NO and one NC contact.

Can the 100-SB10 switch the motor's main power circuit?

No. It is an auxiliary signaling component, not a main power contactor.

Does it fit every Allen-Bradley contactor?

No. It belongs to specified Bulletin 100-C-related accessory arrangements. The exact contactor model and mounting position should be checked before ordering.

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