Product Overview

The ABB ON6KB-S6048-08W is a high-performance cam-operated switch from the ABB ON/OT series, specifically designed for industrial control applications requiring reliable, multi-position switching with clear mechanical detent. As a member of the ABB S600 cam switch family, the ABB ON6KB-S6048-08W employs a rotating cam mechanism to actuate silver-alloy contacts, providing positive mechanical positioning that ensures only one contact combination is active at any time. This design is ideal for mode selection functions such as manual/off/auto, run/stop/reset, or motor forward/reverse control, where a maintained switching state is required.

The ABB ON6KB-S6048-08W is built on a modular platform and is fully compliant with IEC 60947-3, making it suitable for load break applications. The S6048 designation defines the specific cam sequence and contact timing diagram, while 08W typically identifies the operator variant, often a white or black knob or specific handle configuration. With rated thermal currents up to 25A and operational currents up to 20A at 690V AC, the ABB ON6KB-S6048-08W provides robust switching performance for a wide range of control circuits. Its construction features screw terminals accepting up to 10mm² cable, an IP65-rated front panel when mounted with the supplied seal, and a mechanical life exceeding 1 million operations, ensuring long-term reliability in demanding industrial environments.

 

Technical Specifications

Parameter Name	Parameter Value
Product Model	ON6KB-S6048-08W
Manufacturer	ABB
Product Type	Cam-Operated Switch (Selector Switch)
Series	ON/OT S600 Family
Rated Thermal Current (Ith)	25 A (typical ON6KB base)
Rated Operational Current	20 A (AC-23A @ 690V); 32 A @ 415V
Maximum Operating Voltage	690 V AC / 250 V DC
Number of Poles	3 Poles (S6048 cam may support up to 4 poles)
Cam Sequence Code	S6048 — 6-position, 2-stage sequence
Operator Variant	08W — knob/handle style identifier
Positions	Multiple positions with maintained detent (S6048 chart specific)
Terminal Type	Screw terminals; accepts 0.75–10 mm² (AWG 18–8)
Front Panel Protection	IP65 (with panel seal)
Body Protection	IP20 (rear side)
Operating Temperature	-25°C to +55°C
Storage Temperature	-40°C to +80°C
Mechanical Life	> 1,000,000 operations
Electrical Life	> 10,000 operations at rated AC-23A load
Mounting	Panel/door mounting with door coupling kit
Approvals	IEC 60947-3, EN 60947-3, CCC, UL, CSA, CE

 

 

Main Features and Advantages

Precise Cam-Operated Switching with Positive Detent: The ABB ON6KB-S6048-08W uses a precision-engineered cam mechanism to push silver-alloy contacts, providing clear tactile feedback and positive mechanical positioning. This ensures that the switch locks into each position with a distinct detent, preventing the unintended contact bounce or drift that can occur with spring-return pushbuttons. The S6048 cam profile on the ABB ON6KB-S6048-08W defines a specific sequence of contact closures across its positions—commonly a 6-position, 2-stage arrangement suitable for forward/off/reverse or multi-step selector applications. This makes the ABB ON6KB-S6048-08W ideal for machine mode selection where the state must be maintained even if the operator releases the handle.

Flexible Configuration and High Current Capacity: The ABB ON6KB-S6048-08W is built on a modular platform that supports multiple pole configurations and contact sequences defined by the S code. While the S6048 variant is typically a 3-pole switch, the ON6KB base can accommodate up to 4 poles depending on the specific cam chart. With a rated thermal current of 25A and operational current of up to 32A at 415V AC, the ABB ON6KB-S6048-08W can handle moderate motor loads directly, functioning as a load break switch under AC-23A duty. The screw terminals accept conductors up to 10mm², ensuring secure connections for power circuits.

Robust Construction for Industrial Environments: Built to withstand the demands of industrial control panels, the ABB ON6KB-S6048-08W features a rugged housing with IP65 protection on the front operator side when installed with the panel seal, providing resistance to dust and water jets. The rear terminal area is rated IP20 for safe installation within an enclosure. The ABB ON6KB-S6048-08W operates reliably across a wide temperature range of -25°C to +55°C and is certified to IEC 60947-3, UL, CSA, and CE standards, ensuring compliance with global safety requirements. Its mechanical life exceeds 1 million operations, delivering decades of maintenance-free service in normal duty cycles.