Schweitzer Engineering Laboratories SEL-387E - Specifications

Date Code 20080110 Introduction and Specifications 1-5
SEL-387E Instruction Manual
This robust package meets or exceeds numerous industry standard type tests. It is available in a
5.25" (3U) rack-mount package or a 6.65" panel-mount package.
S PECIFICATIONS
General
Terminal Rear Screw-Terminal Tightening Torque
Connections: Terminal Block:
Minimum: 8 in-lb (0.9 Nm)
Maximum: 12 in-lb (1.4 Nm)
Connectorized (for further information, see SEL Application Guide 2001-03, Installing and
Servicing Connectors for Connectorized
®
Relays):
Minimum: 4.4 in-lb (0.5 Nm)
Maximum: 8.8 in-lb (1.0 Nm)
Terminals or stranded copper wire. Ring terminals are recommended. Minimum temperature
rating of 105°C.
AC Current Inputs:
5 A nominal: 15 A continuous, 500 A for 1 s, linear to 100 A symmetrical
1250 A for 1 cycle
Burden: 0.27 VA @ 5 A, 2.51 VA @ 15 A
1 A nominal: 3 A continuous, 100 A for 1 s, linear to 20 A symmetrical,
250 A for 1 cycle
Burden: 0.13 VA @ 1 A, 1.31 VA @ 3 A
AC Voltage Inputs: 300 V
L-N
, three-phase, four-wire connection
300 V continuous (connect any voltage from 0 to 300 Vac)
600 V for 10 s
Burden: 0.03 VA @ 67 V; 0.06 VA @ 120 V; 0.8 VA @ 300 V
Power Supply:
Rated: 125/250 Vdc or Vac
Range: 85–350 Vdc or 85–264 Vac
Burden: <25 W
Interruption: 45 ms at 125 Vdc
Ripple: 100%
Rated: 48/125 Vdc or 125 Vac
Range: 38–200 Vdc or 85–140 Vac
Burden: <25 W
Interruption: 160 ms at 125 Vdc
Ripple: 100%
Rated: 24/48 Vdc
Range: 18–60 Vdc polarity dependent
Burden: <25 W
Interruption: 110 ms at 48 Vdc
Ripple: 100%
Note: Interruption and Ripple per IEC 60255-11 [IEC 255-11]:1979.
Output Contacts:
Standard:
Make: 30A; Carry: 6 A continuous carry at 70°C, 4 A continuous carry at 85°C;
1 s rating: 50 A; MOV protected: 270 Vac, 360 Vdc, 40 J;
Pickup time: Less than 5 ms; Dropout time: Less than 5 ms, typical
Breaking Capacity (10000 operations):
24 V 0.75 A L/R = 40 ms
48 V 0.50 A L/R = 40 ms
125 V 0.30 A L/R = 40 ms
250 V 0.20 A L/R = 40 ms