Intelligent Transfer Switch
Model: RSB-GFNA-0200-0125-N (Nema 1)
Service Entrance Rated Load Center with Generator Control and Load Transfer Mechanism for Kohler Generators
Complete unit includes load transfer mechanism, microprocessor controller, wiring harnesses, load center,* and enclosure UL 67 listed and
tested to UL 1008
Service entrance rated automatic transfer switch with pre-wired
Square D type QO load center
Suitable for service entrance or sub-panel use
Compatible with all Kohler 8.5--30RES generator sets
240 VAC/60 Hz
200 amp
Two-pole, single-phase open-transition transfer switch
Transfer mechanism electrically and mechanically interlocked
Solid neutral
Transfer mechanism manually operable for maintenance purposes
Two enclosures available:
-
Type 1, for indoor installation, up to 40 circuits;* can be installed flush to the wall or on the surface
-
Type 3R, up to 28 circuits;* padlockable and approved for indoor or outdoor installation
5-year limited warranty
G11-101 (Model RSB Automatic Transfer Switch)
Application Data
Environmental Specifications
Operating temperature
--10C to 40C (--140F to 104F) without derating --10C to 60C (--140F to 140F) with derating Storage temperature --40C to 75C (--40F to 167F)
Humidity 5 to 95% noncondensing
Contact Ratings
Engine start 0.5 A @ 125 VAC; 2 A @ 30 VDC SPST normally closed (NC) Load control 10 A @ 120 VAC SPST normally open (NO)
Source Sensing
Undervoltage dropout 85%
Undervoltage pickup 90%
Underfrequency dropout 90%
Underfrequency pickup 96%
Cable Sizes
Connection Range of Wire Sizes, Cu/Al
Normal Source, 150--225 A #4 AWG to 300 kcmil
Emergency Source #14 to 2/0 AWG
Neutral #4 AWG to 300 kcmil
Ground #12 to 1/0 AWG Cu
Weights and Dimensions
Enclosure Number of Circuits 40
Weight, kg (lb.) 25
Dimensions, H x W x D, mm (in.) (39.4 x 14.25 x 3.75)
Main and Generator Circuit Breaker Ratings
Description Rating, Amps 225
Main circuit breaker Type QOM2 VH 200 QOM2-- Generator breaker 80
Main and generator source circuit breakers are included with the transfer switch. Branch circuit breakers are not included. Obtain
Square D
type QObranch circuit breakers locally as required.
Time Delays
Factory Adjustment with Accessory Board Time Delay
Setting Range Increment
Engine Start 3 sec. 1--10 sec. 1 second
Transfer from Normal to Emergency 3 sec. 1--10 sec. 1 second
Retransfer from Emergency to Normal 6 min. 3--30 min. 3 minutes
Engine Cooldown 5 min. 1--10 min. 1 minute
Exercise Run Time 20 min. 5--50 min. 5 minutes
Exercise Interval 1 week 1 week/2 week (DIP switch)
Failure to Acquire Emergency Source 78 sec. NA
Undervoltage Dropout 0.5 sec. NA
Underfrequency Dropout 1 sec. NA
Accessory board is required for time delay adjustments.
NA = not adjustable.
G11-101 (Model RSB Automatic Transfer Switch)
Short Circuit Current Rating
Maximum continuous loads not to exceed 80% of the ampere rating of any overcurrent device installed.
RMS Symmetrical Amperes at 240 VAC, Max.
Integral Main
Catalog Designation or Fuse Class (Max. A) *
Branch Circuit Breaker Catalog Description (Max. A)
10,000 QO(125) Emergency (Generator)
QO(125) and QOT 22,000 QOM--VH(200) Normal (Utility) QO(125) and QOT
* See circuit breaker for voltage and interrupting rating. The rating is equal to the lowest interrupting rating of any circuit breaker installed. Refer
to branch or main circuit breakers for individual ratings. Additional or replacement branch or main circuit breaker or service disconnect MUST
have an interrupting rating equal to or greater than that of the circuit breaker with the lowest interrupting rating presently installed.
QO includes QO--GFI, QO-EPD, and QO--AFI.
Certifications, Codes and Standards
The ATS meets or exceeds the requirements of the following
specifications:
UL listed under Underwriters Laboratories UL 67, Enclosed Panel Boards
Tested to Underwriters Laboratories UL 1008, Standard for
Automatic Transfer Switches for Use in Optional Standby Systems
NFPA 70, National Electrical Code, Article 702
NEMA Standard IC10--1993, AC Automatic Transfer Switches
IEC 61000-4-2, 2001: ESD—Electrostatic Discharge, Level 3
IEC 61000-4-3, 2002: Radiated Immunity, Level 2
IEC 61000-4-4, 2001: EFT/Burst Immunity, Severity Level 3
IEC 61000-4-5, 2001: Surge Immunity, Severity Level 4
IEC 61000-4-6, 2003: Conducted RF Immunity, Level 2
FCC Part 15, Radiated Emissions, Class B
FCC Part 15 Using CISPR 11 Conducted Emissions, Class B
Accessories
Accessory Board
Alarm horn indicates system faults
Adjustable time delays:
Engine start
Engine cooldown
Preferred to standby
Standby to preferred
Exercise duration
Inputs and Outputs:
Remote start/stop input (loaded)
Generator set supplying load output:
10 A @ 120 V SPST normally open (NO) contact
Dip switches:
Momentary/maintained external start/stop input:
Selects momentary (1 second) push button or
maintained contact closure for remote start/stop signal
Audible alarm disable
Literature Kits
Literature is provided with every unit Additional literature kits are available
rsb-gfna-0200-0125-n 
