© KEMET Electronics Corporation • P.O. Box 5928 • Greenville, SC 29606 • 864-963-6300 • www.kemet.com F3062_C27 • 1/30/2018 3
Motor Run Capacitors
C27, Cylindrical Plastic Case, 275 – 470 VAC
Performance Characteristics
Type of Service Continuous
Operating Class
C27/4 Class A 30,000 hours at 420 VAC or Class B 10,000 hours at 470 VAC
C27/6 Class B 10,000 hours at 420 VAC or Class C 3,000 hours at 470 VAC
C27/7 Class B 10,000 hours at 275 VAC or Class D 1,000 hours at 425 VAC (intermittent operation)
Temperature Range −25°C to +85°C
Storage Temperature −40°C to +90°C
Rated Voltage 470 VAC
Rated Frequency 50 – 60 Hz
Voltage Rise/Fall Time (Maximum):
C27/4
C27/6
c27/7
20 V/μs
15 V/μs
15 V/μs
Maximum Permissible Voltage 1.10 x rated voltage
Maximum Permissible Current 1.30 x rated current
Dissipation Factor (DF) 20 x 10 −4 at +20°C, 50Hz
Safety Class S0
Maximum Altitude 2,000 m
Capacitance Tolerance ±5%
Mounting Any position
Can
Polypropylene with self-extinguishing features V2 (UL 94)
Noryl with self-extinguishing features VI (UL 94) for diameters > 50 mm
Disk
Faston execution: Nylon PA66 with self-extinguishing features V0
Cable execution: PC-A with self-extinguishing features V0
For diameters > 40 mm cable execution: Noryl PPO with self-extinguishing features VI
Filling Resin Polyurethane
Dielectric Polypropylene
Plates Self-healing metal layer
Test Voltage Terminal to Terminal
(V
)
2 V
n
for 2 seconds
Test Voltage Terminal to Can (V
TC
) 2,000 V for 2 seconds
Air Distance Between Live Parts ≥ 5 mm
Air Distance Between Live Parts and
Case
≥ 6 mm
