SBTT-350 Tunnel-to-Tunnel Power Terminal

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Features

Tinned copper block allows for copper or aluminum conductor connections
Accessible tunnels allow for easy connection of wire
Design allows for visual inspection of conductor and confirmation of connection
Adjustable transparent cover
Modular snap-together blocks for building multi-pole power blocks
Easily clips onto DIN rail or mounts to panel with screws
SBLEC Power Terminals Fixing Accessory required for direct panel mount
Halogen free
RoHS compliant

Specifications

Material: Copper; Thermoplastic

Finish: Tinned

Part Number	SBTT-350
Article Number	561143
Max Current Rating, IEC	500 A
Max Current Rating, UL/CSA	310 A
Short Term Withstand Current (Icw) 1s	22.2 kA
Peak Short Circuit Current (Ipk)	43 kA
Short Circuit Current Rating (SCCR)	100 kA
Max Working Voltage, IEC (Ui)	1,000 VAC 1,500 VDC
Max Working Voltage, UL (Vin)	1,000 VAC/DC
Number of Tunnel Connections	2
Tunnel Connection Compact Stranded Wire Size	(2) 35 – 185 mm²
Tunnel Connection Wire Size - Ferrule	(2) 35 – 150 mm²
Tunnel Connection Wire Size	(2) #2 – 350 kcmil
Depth (D)	2.6"
Height (H)	8.1"
Width (W)	2.1"
A	4 1/4"
Unit Weight	0.73 lb
Certification Details	UL® 1059
Flammability Rating	UL® 94V-1
Complies With	IEC® 60947-7-1

Design Guideline for Distribution Blocks, Power Blocks and Power Terminals
Derating according to Ambient* Temperature (°F) to maintain working temperature of 185°F
Ambient Temperature (°F)	86°	95°	104°	113°	122°	131°	140°	149°	158°	167°
Derating Coefficient (d)	1	1	1	0.94	0.88	0.82	0.75	0.67	0.58	0.47
*environment around the terminal blocks inside the enclosure

Power terminal connections are interchangeable and can be used as line side or load side connections.

nVent, nVent CADDY, nVent ERICO, nVent ERIFLEX, and nVent LENTON are owned by nVent or its global affiliates. All other trademarks are the property of their respective owners. nVent reserves the right to change specifications without prior notice.

CSA, CSA-US and C-CSA-US are registered trademarks of Canadian Standards Association.

IEC is a registered trademark of the International Electrotechnical Commission.

UL, UR, cUL, cUR, cULus and cURus are registered certification marks of UL LLC.

Warning

WARNING
nVent products shall be installed and used only as indicated in nVent's product instruction sheets and training materials. Instruction sheets are available at www.erico.com and from your nVent customer service representative. Improper installation, misuse, misapplication or other failure to completely follow nVent's instructions and warnings may cause product malfunction, property damage, serious bodily injury and death and/or void your warranty.