Electrical Data
	Power	Signal
Rated Current	10A/ring	5A/ring
Rated Voltage	0~380VAC/VDC	0~240VAC/VDC
Insulation Resistance	≥1000MΩ/500VDC	≥500MΩ/500VDC
Dielectric Strength	1000VAC@50Hz,60s	500VAC@50Hz,60s
Wire Size	Sliver plated Teflon AWG16 (10A)	Sliver plated Teflon AWG22(5A)
Mechanical Data
Wire Length	Standard 500mm (adjustable)
Dynamic Resistance	＜0.01Ω
Max. Speed	0-250 rpm
Working Temperature	-20℃~+80℃
Working Humidity	0-85% RH
Structure Material	Engineering plastic
Contact material	Precious metal/silver plated/gold plated
Operating Torque	0.1N·m for 6 rings, 0.03 N·m increased for every 6 rings added
Protection level	IP51

  Model list

Model	Power(10A)	Signal(5A)	Length(mm)
BST2578-6P	6	–	55
BST2578-12S	–	12	55
BST2578-12P	12	–	79
BST2578-6P/12S	6	12	79
BST2578-24S	–	24	79
BST2578-18P	18	–	103
BST2578-12P/12S	12	12	103
BST2578-6P/24S	6	24	103
BST2578-36S	–	36	103
BST2578-24P	24	–	127
BST2578-18P/12S	18	12	127
BST2578-12P/24S	12	24	127
BST2578-6P/36S	6	36	127
BST2578-48S	–	48	127

  BST2578  The through bore slip ring provides an economic readily available solution when a compact through hole configuration is required to be easily mounted on the shaft mechanics. Model BST2578 is a hollow slip ring provides 25.4mm through hole with OD 78 mm, suitable for rotating application which requires a through hole ≤25.4mm, color coded wires on both stator and rotor side, this model supports 1-48 rings,it can transmit power ring 10A/ring and signal 5A/ring.

Quanlity level	Product level code	Lifespan
Common Quality	CQ	20 million revolutions
High Quality	HQ	50 million revolutions
Super Quality	SQ	80 million revolutions

• Number of rings, support up to 300 rings
• Optional for flange mounting
• Position of wire outlet, wire length
• ID, OD, Height can be customized if structure limitation
• Aviation plug, terminal and heat-shrink tube are optional.
• High temperature can up to 500 degrees.
• High pressure can up to 110KV
• Rotating speed can up to 15,000RPM
• High current up to 5000 amperes.
• Protection level (dust and water)
• Optional for housing or structure material
• Support mixed high speed data transmission(including Ethernet, USB, Profibus, Ethercat, CANOPEN,CANBUS, RS232, RS485, etc.)
• RF/FORJ/Hybrid Pneumatic rotary union/hydraulic rotary union and electric slip ring can be mixed.

• Cable reels
• Packaging
• Rotary table
• Wind turbine
• Machine tools
• Capping machines
• Labeling machines
• Automatic machines
• Converting machines
• Exhibit / display equipment
• Medical,Pharmaceutical equipment
• Robotics, rotary sensors, urgent illumination equipment

Rings#	1	2	3	4	5	6	7	8	9	10	11	12
Color	RED	YEL	BLK	BLU	GRN	WHT	PUP	GRY	BRN	ORN	DBLU	KHK

Note: 12 wires for 1 group color, from 13-24, repeat the same color as 1 to 12, or indicated by number code pipe.