Disconnect Unit 600V

DISCONNECT UNIT

Complete NEC conformity, compact in a single switch cabinet

The new Disconnect Unit combines all safety measures into a single, compact enclosure. The device is ideally suited to all Sunny Central inverters with plant voltage ranging from 600 to 1000 V currently in use in North America. All switch-disconnectors are tightly concentrated in a small space for quick access in a hazardous situation. They can operate under full loads and feature the ampacity reserves required by NEC 2011. The switching handles installed on the front enable you to immediately recognize the switch position. This guarantees a secure and fast disconnection of all energy from the inverter in case of emergency or maintenance.

Compliant

  • Full compliance with all NEC-2011 safety rules

Flexible

  • Suitable for all SMA inverters used in the US
  • Extendable up to six disconnectors
  • Available with or without AC switch

Compact

  • All switch-disconnectors in a single enclosure
  • Available as an accessory of a complete MV block

Secure

  • Visible switch position and fast handling in case of hazardous situation
  • Reliable disconnection, even under full load
Show All / Hide All Disconnect Unit 600V Disconnect Unit 1000V
Input (DC)
DC voltage range 0 V – 600 V 0 V – 1000 V
Max. nominal DC current 1600 A 1600 A
Number of DC inputs 4 ... 10 6 – 10
Max. current / input (without reduction factors) 450 A 450 A
Data (DC switch)
Switch type Switch-disconnector Switch-disconnector
Max. short-circuit current 20 kA RMS 20 kA RMS
Number of DC switching handles 2 – 5 3 – 5
Data (AC switch)
Switch type SC250-US: switch-disconnector,
SC500HE-US / CA: switch-disconnector,
SC500-US: switch-disconnector
Circuit breaker
AC voltage range 128 V – 528 V 128 V – 528 V
AC switch current / max. short-circuit current 400 A / 200 kA, 800 A / 100 kA,
1600 A / 42, 65 ,85 kA
1600 A / 42, 65 ,85 kA
Number of AC switching handles 1 1
General Data
Dimensions (W / H / D) 2078¹ / 1500 / 970 mm
(80 / 59 / 39 inch)
2278 / 1500 / 970 mm
(80 / 59 / 39 inch)
Weight 522 kg²/ 1151 lb 664 kg / 1464 lb
Operating temperature range -25 °C ... +50 °C
-13 °F ... +122 °F
-25 °C ... +50 °C
-13 °F ... +122 °F
Storage temperature range -40 °C ... +60 °C
-40 °F ... +140 °F
-40 °C ... +60 °C
-40 °F ... +140 °F
Degree of protection NEMA 3R NEMA 3R
Cooling system Passive Passive
Max. permissible value for relative humidity (non-condensing) 15 % ... 95 % 15 % ... 95 %
Max. operating altitude above MSL 4000 m (13000 ft)
derating above 2000 m (6500 ft)
4000 m (13000 ft)
derating above 2000 m (6500 ft)
Features
Chemical aggressive environment yes yes
Wire input side / bottom yes / yes yes / yes
Switching handles on front yes yes
Connection via terminal lug / screw terminal opt. / opt. opt. / opt.
Certificates and approvals (more available on request) UL 1741 UL 1741³
Compliance with NEC 2011 NEC 2011
Footnotes
Type designation Disconnect Unit 600V Disconnect Unit 1000 V
¹ 2278 mm / 90 inch for SC500HE-US, SC500HE-CA
² 664 kg for SC500HE-US, SC500HE-CA
³ Listed accessories for the Sunny Central CP-US inverter
Language

Data sheet

DISCONNECT UNIT - Full NEC conformity in a single enclosure SCDISCONNECT-DUS122620W.pdf
  • Type: Data sheet
  • Language: English (US)
  • Number: SCDISCONNECT-DUS122620
  • Version: 2.0

Installation Guide

Disconnect Unit for Sunny Central 250U/500U/500HE-US/CA and Sunny Central CP - Installation Guide DISU_SCUS-IA-IUS111711.pdf
  • Type: Installation Guide
  • Language: English (US)
  • Number: DISU_SCUS-IA-IUS111711
  • Version: 1.1
Disconnect Unit for SUNNY CENTRAL 250U/500U/500HE‑US and SUNNY CENTRAL CP - Unpacking DISU_SCUS-AP-eng-IUS110911.pdf
  • Type: Installation Guide
  • Language: English (US)
  • Number: DISU_SCUS-AP-eng-IUS110911
  • Version: 1.1

Technical information

Installation requirements for SUNNY CENTRAL 500HE-US/SUNNY CENTRAL 500HE‑CA SC500HE-US-Auf-TI-UUS110613.pdf
  • Type: Technical information
  • Language: English (US)
  • Number: SC500HE-US-Auf-TI-UUS110613
  • Version: 1.3

Contact

SMA America, LLC
6020 West Oaks Blvd, Ste 300
Rocklin, CA 95765 U.S.A.

Tel. +1 916 625 0870
Fax +1 916 625 0871
Toll Free 1-888-4SMAUSA

www.SMA-America.com
Service Line phone number (Toll free):

+1 877-697-6283
+1 877-MY-SMATech
Service@SMA-America.com

Our Service Line team is available to provide competent advice Monday to Friday from 6:00 a.m. to 5:00 p.m. Pacific time.

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References

Learn more about the flexible uses of our products by seeing how they are used at selected reference plants.

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