CH-NF4EB Relay Module

Description

Four pole telecom / signal relay, polarity selectable, 4 pole changeover / 4 Form C / 4PDT

Product details

The CH-NF4EB relay module is manufactured by Cephos Electronic Circuits Ltd. in the UK – a relay module to replace several classic telecomms. small signal relays that have not been manufactured for several years and are now obsolete and very difficult to source.

The more common of these obsolete relays are the Panasonic NF4EB, Omron LZN4 and Zettler  AZ7-4C relays.

The C-DS4E relay module is a drop-in replacement for all of these relay types

This relay module is fitted with polarised signal relays, the polarity selector switch enables easy integration into any relay circuit that previously used the original obsolete non-polarised relays.

Coil Voltages

The Cephos C-DS4E 5V, 12V and 24V coil voltage versions are normally ex-stock and available for immediate shipping, other coil voltages are manufactured to order on a short lead time ( subject to component availability)

Technical data and specification

Max. Sw. Power: 60W / 62.5VA

Max. Sw. Voltage: 220Vdc / 250Vac

Max. Sw. Current: 2A

Contacts: AgNi + Au covered

Low Coil Power: 5V/12V: 280mW, 24V: 400mW

Module dimensions

Operation parameters

Pick-up voltage Vdc(max): 3.75
Drop-out voltage Vdc(min): 0.5
Coil resistance (ohms): 89 x (1 +/- 10%)
Nominal power (mW approx): 280
Maximum operating voltage Vmax: 7.5

Pick-up voltage Vdc(max): 9.0
Drop-out voltage Vdc(min): 1.2
Coil resistance (ohms): 515 x (1 +/- 10%)
Nominal power (mW approx): 280
Maximum operating voltage Vmax: 18.0

Pick-up voltage Vdc(max): 18.0
Drop-out voltage Vdc(min): 2.4
Coil resistance (ohms): 1440 x (1 +/- 10%)
Nominal power (mW approx): 400
Maximum operating voltage Vmax: 36.0

Cephos CH-NF4EB datasheet

Datasheet detailing the CH-NF4EB relay operating data
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