WCB-48DC-1-B datasheet, PDF - EEWORLD Datasheet

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WCB-48DC-1-B: DescriptionPOWER/SIGNAL RELAY, DPST, MOMENTARY, 48VDC (COIL), 5A (CONTACT), 28VDC (CONTACT), PANEL MOUNT; CategoryMechanical and electronic products relay; File Size63KB，1 Pages; ManufacturerTE Connectivity; Websitehttp://www.te.com

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WCB-48DC-1-B Overview

POWER/SIGNAL RELAY, DPST, MOMENTARY, 48VDC (COIL), 5A (CONTACT), 28VDC (CONTACT), PANEL MOUNT

WCB-48DC-1-B Parametric

Parameter Name	Attribute value
Reach Compliance Code	unknown
ECCN code	EAR99
Other features	WILMAR
body width	107.95 mm
body height	88.9 mm
Body length or diameter	127 mm
Maximum coil voltage (DC)	48 V
Contact (AC) maximum rated R load	5A@120VAC
Maximum contact current (AC)	5 A
Maximum contact current (DC)	5 A
Contact (DC) maximum rated R load	5A@28VDC
Maximum contact voltage (AC)	120 V
Maximum contact voltage (DC)	28 V
Contact/Output Power Type	AC/DC
Manufacturer's serial number	WCB
Installation features	PANEL MOUNT
Maximum operating temperature	70 °C
Minimum operating temperature	-40 °C
physical size	127mm X 107.95mm X 88.9mm
Guideline	CSA; UL
Relay action	MOMENTARY
Relay function	DPST
Relay type	POWER/SIGNAL RELAY
surface mount	NO
Termination type	SCREW
Base Number Matches	1

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Current Balance Relays

WILMAR™ Protective Relays – WCB Series

TERMINAL STRIPS

#6 - 32 SCREWS

Function:

60 or 87

•

ANSI/IEEE C37.90-1978

•

UL file No. E58048

•

CSA file No. LR61158

Current Balance Relays are designed to sense un-

balanced current flow in a three phase system. The

primary application of Current Balance Relays is to

protect three phase motors against phase unbal-

ance or phase failure.

Operation:

With control voltage applied to the relay, the output

contacts will energize when the three phase currents

are balanced (including zero currents), and will be

de-energize by unbalance currents.

Note:

Dimensions in inches. Multiply values by 25.4 for dimensions in mm.

Part Number

Line Current ..................................... Three Phase, AC current, 50-400 Hz Direct or from CT.

5 amp continuously

20 amp, 30 sec.

200 amp, 0.10 sec.

Control Voltage ................................ See Part Number Selection

Unbalanced Trip Point ..................... Screwdriver adjustable. Adjustment range in

accordance with ordering information. (The unbalanced

value is defined as the difference between the highest

and the lowest phase current).

Drop-Out Time Delay ....................... 0.9 to 1.3 seconds

Surge Withstand Capabiliy .............. In compliance with C37.90B ANSI/IEEE

Operating Temperature .................... -40

C to +70

Burden .............................................. Current input: 5.0 VA, Phase Control voltage: 3.0 VA

Contact Ratings ................................ One set, N.O., One set N.C.

5 amp resistive at 120 VAC or 28 VDC

Notes:

1. Remove black screw for access to the trip adjustment.

2. Clockwise rotation of the adjustment potentiometer will raise the unbalance trip point.

3. The output contacts are shown de-energized.

Tyco Electronics

/ www.tycoelectronics.com / Factory Direct Technical Support: 800-253-4560, ext. 2023 (U.S., Canada, Mexico) or 805-220-2020, ext. 2023 (International)

5.0

4.0

5.0

13 64

DIA.

PART NUMBER SELECTION

4 MTG. HOLES

PRODUCT SPECIFICATIONS

PART NUMBER SELECTION

Sample Part No.

WCB-120AC-1-A

Type:

WCB = Current Balance

Control Voltage

(±

15%)

26 DC

48 DC

125 AC

120 AC

230 AC

380 AC

460 AC

Trip Adjustment Range

.5 = 0.1 amp to 0.5 amps

1 = 0.2 amp to 1 amp

2 = 0.4 amp to 2 amp

Options:

A = two normally open contacts

B = two normally closed contacts

WCB Series

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