B121120060 datasheet, PDF - EEWORLD Datasheet

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B121120060: DescriptionTimers Delay on Release; File Size62KB，2 Pages; ManufacturerETC2

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B121120060 Overview

Timers Delay on Release

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Timers

Delay on Release

Types B 128, B 121

• Time ranges: 0.15 s to 60 s

• Automatic start after drop out of power supply

• Knob-adjustable time within range

• Repeatability deviation:

≤

• Output: 10 A SPDT relay

• Plug-in type module

• Scantimer housing

• LED-indication for supply on

• AC or DC power supply

Product Description

Mono-function, plug-in, delay

on release, miniature time re-

lays up to 60 s covering 2

individual time ranges. These

economical timers are often

used to switch on an exhaust

fan and keep it running for a

certain period of time after

disconnection of power sup-

ply.

Ordering Key

Function

Output

Type

Power supply

Time range

B 128 220 006

Type Selection

Plug

Circular

8 pins

Circular

11 pins

Output

SPDT

Time ranges

0.15 - 6 s

1.5 - 60 s

0.15 - 6 s

1.5 - 60 s

Supply: 24 VAC

B 128 024 006

B 128 024 060

B 121 024 006

B 121 024 060

Supply: 120 VAC

B 128 120 006

B 128 120 060

B 121 120 006

B 121 120 060

Supply: 220 VAC

B 128 220 006

B 128 220 060

B 121 220 006

B 121 220 060

Supply: 24 VDC

B 128 724 006

B 128 724 060

B 121 724 006

B 121 724 060

Time Specifications

Time ranges

Time range accuracy

0.15 -

1.5 - 60 s

0 to +20% on max.

min. actual time

≤

min.

set time

≤

0.05%/V

≤

0.2%/°C

Power supply interruption

≥

500 ms

Output Specifications

Output

Basic electrical insulation

Contact ratings

(AgCdO)

Resistive loads

AC 1

DC 1

Small inductive loads AC 15

DC 13

Mechanical life

Electrical life

AC 1

SPDT relay

250 VAC (rms)

(contact/electronics)

µ (micro gap)

10 A/250VAC (2500 VA)

1 A/250 VDC (250 W)

10 A/25 VDC (250 W)

2.5 A/230 VAC

5 A/24 VDC

≥

30 x 10

operations

≥

2.5 x 10

operations

(at max. load)

≤

7200 operations/h

Repeatability deviation

Time variation

Within rated power supply

and ambient temperature

Reset

Time and/or relay

Operating frequency

Insulation voltages

Rated insulation voltage

≥

2.0 kVAC (rms) (cont./elec.)

Rated transient protection volt. 4 kV (1.2/50 µs) (cont./elec.)

(IEC 60664)

Specifications are subject to change without notice (25.10.99)

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