SSA-24C667【PDF 1/2 页】MOUNTING CLIP CNT SERIES

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Catalog 1308242

Issued 3-03

CNT series

Multifunction, Digital

Time Delay Relay/Counter

P&B

10 programmable timing modes + 2 counting modes

0.1 sec. to 9,990 hr. programmable timing range

1 to 99,900 counting range

LCD digital display

Universal (24-240VAC/VDC) and fixed input types

10A output relay with DPDT contacts

Thumbwheel switches for programming

File E22575

File LR15734

Users should thoroughly review the technical data before selecting a product part

number. It is recommended that user also seek out the pertinent approvals files of

the agencies/laboratories and review them to ensure the product meets the

requirements for a given application.

Timing and Counting Modes

See the following page for a complete description of all program-

mable timing and counting modes.

Timing Specifications

Timing Ranges: 0.1 to 99.9 / 1 to 999 sec.; 0.1 to 99.9 / 1 to 999 min.;

0.1 to 99.9 / 1 to 999 / 10 to 9,990 hr.

Timing Adjustment: Digital adjustment via thumbwheel switches.

Tolerance: ± 0.5% ± 0.05 sec.

Delta Time (for AC units add ± 1 cycle 60 Hz.): ± 0.1% ± 0.05 sec.

Repeatability (Including first cycle of operation.): ± 0.1% ± 0.05 sec.

Reset Time (power interruption): 45 ms, typ.; 60 ms, max.

Minimum Pulse Width, Control: 50 ms.

Input Data @ 25 ° C

Voltage: Universal Input Type: 24 - 240V ± 15%, 50/60 Hz. AC or DC.

Fixed Input Types: 120VAC ± 15%, 50/60 Hz and 12VDC.

Power Requirement:

Universal Input Type: 10VA @ 240VAC; 5VA @ 120VAC; 1VA @ 24VAC.

10W @ 240VDC; 5W @ 120VDC; 1W @ 24VDC.

Fixed Input Types: 3VA @ 120VAC; 3W @ 12VDC.

Transient Protection: Yes.

Reverse Voltage Protection: Yes.

Input Voltages & Limits @ 25 ° C

Input Nominal Minimum Maximum

Type Voltage Voltage Voltage

Recycle Time: 45 ms, typ.; 60 ms, max.

Counting Specifications

Universal

Fixed

24-240VAC/VDC

120VAC

20.4VAC/VDC

102VAC

276VAC/VDC

138VAC

Maximum Count: 1 to 999; 10 to 9,990 ( ÷ 10); 100 to 99,900 ( ÷ 100).

Maximum Count Rate: 100 counts per second.

Mimumum Pulse Width:Count (Control): 3 ms.; Reset: 3 ms.

12VDC 10.2VDC

Note: DC voltage must be filtered (5% p-p ripple max. at nom. voltage).

AC models will operate on 50 or 60 Hz.

13.8VDC

Available Counting Functions: Operate at preset count and release at

preset count.

Contact Data @ 25 ° C

Arrangements: 2 Form C (DPDT).

Material: Silver-cadmium oxide alloy.

Rating: 10A @ 30VDC or 277VAC, resistive; 1/2 HP @ 250VAC; 1/3 HP @

120VAC.

Expected Mechanical Life: 10 million operations.

Expected Electrical Life: 100,000 operations, min., at rated load.

Initial Dielectric Strength

Between Open Contacts: 1,000V rms, 60 Hz.

Between All Other Conductors: 1,500V rms, 60Hz.

Environmental Data

Temperature Range: Storage: -20 ° C to +70 ° C.

Operating: -10 ° C to +55 ° C.

Humidity: 85% relative humidity, non-condensing.

Mechanical Data

Termination: 11-pin octal style plug.

Enclosure: Beige plastic 1/16 DIN case.

Sockets: Fits either 27E123 or 27E892 (snap-on) screw terminal sockets.

Weight: 4.3 oz. (122g) approximately.

External Control: CONTROL, RESET: Active on contact closure or solid

state switch closure to RETURN, 0-1.0VDC maximum

voltage level (see wiring diagrams for interface circuits.

Ordering Information – Authorized distributors are more likely to stock boldface items listed below.

Universal Input Model

Accessories

Input Voltage

24-240VAC/VDC

Part Number

CNT-35-96

Part Number

SSA-24C667

Name

Mounting Clip

Description

Ratchet-fit clip slides onto CNT from behind

Fixed Input Models

to secure CNT in panel mount applications.

SSA-24C668 Protective Cover Clear, flexible cover slips snugly over bezel of

Input Voltage

12VDC

120VAC

Outline Dimensions

1.88

2.83

Part Number

CNT-35-26

CNT-35-76

CNT to help protect against dust and moisture.

Durable cover also helps prevent inadvertant

changes of programming switch settings.

Wiring Diagrams (Bottom Views)

(pins numbered clockwise from keyway)

(47.8)

.32

(8.1)

(71.9)

EXTERNAL CONTROL SWITCHES**

CONTROL

(COUNT)

RESET

CONTROL

RETURN

RESET

RETURN

1.88

(47.8)

1.76

(44.7)

1 11

USE SAME

FOR RESET

1 11

INPUT* _

INPUT*

Fits 1.77 x 1.77 (45 x 45)

Panel cutout

3.15

(80.0)

.64

(16.3)

* Note: Input polarity for DC operation. For most reliable operation on AC, connect high side

to “+” and low side to “–”.

** Important: A dry circuit switch is recommended. A “dry circuit” switch is one rated to

reliably switch currents of less than 50mA. Use of a switch rated for other

than dry circuit may result in failure of the time delay relay to function properly.

Dimensions are shown for

Dimensions are in inches over

Specifications and availability

www.tycoelectronics.com

reference purposes only.

(millimeters) unless otherwise

specified.

subject to change.

Technical support:

Refer to inside back cover.

1211

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