SPECIFICATIONS

ENCLOSED AUTOMATIC TRANSFER SWITCH

Enclosure Size

Type 1 . . . . . . . . . . . . . . . . . . 24” H x 14¼” W x 8” D (610 mm H x 362 mm W x 203 mm D)

Type 3R . . . . . . . . . . . . . . . 25” H x 14¾” W x 8½” D (635 mm H x 375 mm W x 216 mm D)

Weight Type 1 enclosure

67 lb

Type 3R enclosure

82 lb

Temperature

Operating . . . –4˚ F to +122˚ F(–20˚ C to +50˚ C) Storage . . . . –67˚ F to +149˚ F(–55˚ C to +65˚ C)

TRANSFER SWITCH

Poles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Voltage (nominal) . . . . . . . . . . 220–240 V ac single phase Frequency (nominal) . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Hz Current (depending upon the unit) 100, 200, or 230 amps

Withstand / Close–On Current . . . . . . . . . . . . 10,000 amps RMS Symmetrical amps 240 V ac max. for any circuit breaker, manufacturer, or Type

per National Electrical Code, NEC/NFPA 70

100 amp. Transfer Switch power terminals accept wire sizes one #14 to 4/0 AWG AL or CU

200 amp. Transfer Switch power terminals accept wire sizes one #14 to 4/0 AWG CU (copper only)

230 amp. Transfer Switch power terminals accept wire sizes one #14 to 4/0 AWG CU (copper only)

CONTROLLER

Voltage (nominal) . . . . . . . . . . . . . . . . . . . . . . 220–240 V ac Pickup (source acceptable) . . . . . . . . . . . . 204 V ac Dropout (source unacceptable) . . . . . . . . 180 V ac

Frequency (nominal) alternate (generator) source . 60 Hz Pickup (source acceptable) . . . . . . . . . . . . . . . 57 Hz Dropout (source unacceptable) . . . . . . . . . . . 54 Hz

Generator control contacts

Start / Stop spdt 5 A max / 300 mA min at 30 V dc max. terminals accept #22 to #14 AWG stranded copper wire per terminal

Time Delays

Ignore preferred (utility) source outages . . . . . . . . 3 sec. Ignore alternate (generator) source outages . . . . 15 sec. Load transfer to alternate (generator) source . . . 15 sec. Load retransfer to preferred (utility) source . . . . . . 5 min. Generator cooldown period (after load retransfer) 1 min.

Automatic Generator Exerciser

Repeat time . . . . . . . . . . . . . . . . . . . . . . every 14 days Duration . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 minutes

INTRODUCTION

INTRODUCTION

ASCO Series 165 Automatic Transfer Switches are Listed under the Underwriter’s Laboratories Standard for Transfer Switch Equipment, UL–1008. They are intended for use only in optional standby systems in accordance with the National Electrical Code, NEC/NFPA 70, Article 702.

This automatic transfer switch is intended for standby power applications in residential or light commercial use only.

!

The Series 165 Automatic Transfer

Switch is not for emergency or

life–support systems.

This product is not intended for emergency or life–support systems.

If you have more stringent application requirements contact ASCO for other products suitable for critical applications.

The automatic transfer switch helps provide safe connection of the alternate source (generator) to the electrical load after disconnecting the preferred source (utility). It contains a double–throw, electromechanical switching device for inherent isolation of the preferred and alternate sources. This isolation prevents the danger of connecting the utility to the generator which could cause damage or personal injury. The automatic transfer switch’s digital controller provides continuous monitoring of both power sources and a start/stop signal to the generator.

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InFocus 165 owner manual Specifications, Introduction