Joslyn Hi-Voltage 21 Series Data Sheet

SURGE PROTECTIVE DEVICES

Surgitron® III -21 Series

Type 2

MEDIUM DUTY FOR RESIDENTIAL OR INDUSTRIAL APPLICATIONS

feature S and benefitS

• Listed to UL 1449 3rd Edition for a Type 2 SPD application.

• Individual fusing for each Metal Oxide Varistors (MOVs).

• LED indicates proper functioning of L-N and N-G MOVs

Product SPecificationS

available configur ationS

Model Number kA Per Phase Voltage Configuration

1261-21 40kA 277V 1-Phase, 2-Wire + Ground 1263-21 40kA 480V 1-Phase, 2-Wire 1452-21 40kA 120/240V 3-Phase High-Leg Delta,

4-Wire + Ground 1456-21 40kA 277/480V 3-Phase, 4-Wire + Ground 1456-21-D 40kA 480V 3-Phase, 3-Wire + Ground 1457-21 40kA 230/400V 3-Phase, 4-Wire + Ground

Warranty

3-years

Available Options

Mounting Bracket Add sufﬁx -B

Electrical

Nominal Discharge Current Rating (I-n) 20kA Operating Frequency 47–63Hz Connection Methods Parallel to Load (shunt)

#14 AWG wires

Modes of Protection 1261-21 L-N, L-G, N-G

1263-21 L-L 1452-21 L-N, L-G, N-G, L-L 1456-21 L-N, L-G, N-G, L-L 1456-21-D LG, L-L

1457-21 L-N, L-G, N-G, L-L Fault Rating (SCCR) 100kAIC Response Time Less than 1 nanosecond (one per phase) Standard Monitoring LED status indicator lights

Mechanical

Weight 2 lbs. (.9 kg) Enclosure Type NEMA 1, Non-metallic Installation Location Indoor Mounting Method 1/2" – 14 NPS Thread

(Aluminum Bracket Optional) Operating Environment -40° to +176°F (-40° to +80°C) Altitude Up to 16,400 ft. (5000 m) Product Design Individually fused MOVs

Regulatory

UL 1449 3rd Edition Type Type 2 UL 1283 No IEEE C62.41.1, .2, C62.45 Yes Listed By UL

Surgitron iii PerforMa nce data

Model Number Voltage Configuration Protection Modes MCOV 6kV 3000A VPR

1261-21 277 L-N 320 1200 L-G 640 2500 N-G 0 1200 1263-21 480 L-L 600 2500 1452-21 120/240 L-N 150 (470) 700 (1800) L-G 300 (470) 1200 (1800) N-G 0 700 L-L 300 (470) 120 (1500) 1456-21 277/480 L-N 320 1200 L-G 640 2000 N-G 0 1200 L-L 640 2500 1456-21-D 480 L-G 640 2000 L-L 640 2500 1457-21 230/400 L-N 320 1200 L-G 640 2000 N-G 0 1200 L-L 640 2500

UL 1449 3rd Edition

diMenSional SPecificationS

2.93"

(75mm)

3.56"

(90mm)

ø .21" (5.5mm) 2 HOLES

1.26"

(32mm)

1.37"

(35mm)

2.52"

(64mm)

BRACKET DETAIL

2.93" (75mm)

.75" (19mm)

1/2–14 NPT Thread

#14 AWG (2mm STRANDED WIRE 600V PVC INSULATION 18" (450mm) LONG

ALUMINUM BRACKET

)