Wieland81.020.0002.0Multifunction Timer Relay, 8 Functions, 0.1 s to 1200 h, 1 Changeover Contact, 24-240 V AC/DC, 22.5 mm DIN Rail

Product Description

What this part is

A Wieland Electric 81.020.0002.0 timer relay, catalogue name flare TIME M8-1. It is a multifunction electronic time delay relay for DIN rail: eight selectable timing functions, eight selectable time ranges spanning 0.1 seconds to 1200 hours, and one timed changeover contact. Supply is universal, accepting 24 to 240 V AC or DC.

Published specifications

Function: multifunction electronic timer relay. Catalogue Name: flare TIME M8-1. Order Number: 81.020.0002.0. Timing Functions: 8, selectable. Time Ranges: 8, spanning 0.1 s to 1200 h. Output: 1 timed changeover contact.

Supply Voltage: 24–240 V AC / DC. Supply Frequency: 50–60 Hz on AC. Dimensions: 22.5 x 89.4 x 100 mm. Mounting: DIN rail. Terminals: screw terminals.

Decoding the designation

81.020.0002.0 — Wieland’s dotted numeric article code, which also appears unpunctuated as 8102000020.

flare TIME — the timer relay family.

M — the multifunction version, in which the timing function is selected on the device.

8 — the number of selectable timing functions.

1 — the number of output contacts.

What these specs mean in practice

A multifunction timer replaces a shelf of single-purpose timers. Eight functions in one device typically span on-delay, off-delay, single shot, pulse generation and star-delta style sequences, and the function is set on the device rather than fixed at manufacture. For a panel builder or a maintenance store that means one part number covers most timing duties, and for a repair it means the replacement can be configured to match whatever the original was doing.

The range span is the other reason this class of timer is specified. Eight ranges reaching from 0.1 seconds to 1200 hours cover fast interlock timing at one end and long-duration plant sequencing, pump alternation and maintenance interval timing at the other, in a single device. Fifty days of range on the top setting is well beyond what a fixed-range timer offers.

A universal 24 to 240 V AC or DC supply means the same relay works on a 24 V DC control circuit and on a 230 V AC circuit, with one article covering both. The single changeover contact is timed, so it transfers when the set period elapses. The 22.5 mm width places the relay in one standard modular position on the rail.

Quantity and configuration

Sold as 1 Pc — one timer relay. The device mounts directly to DIN rail.

Mounting data

Housing width 22.5 mm, height 89.4 mm, depth 100 mm, for direct DIN-rail mounting. Supply and contact connections are screw terminals on the module. Function and time range are both selected on the front face, and the setting potentiometer sets the period within the chosen range.

Interchange guidance

Wieland lists this article as discontinued, at last-order status. Within the same flare TIME family the 81.020.0010.0 is the OFF-1 single-function off-delay timer and the 81.020.0025.0 is the FM6-2 multifunction timer with a fixed 230 V supply and two contacts; those differ in function count, contact count or supply, so they are related articles rather than equivalents. A drop-in match has the same eight-function multifunction behaviour, the same single changeover contact and the same universal supply range. A direct replacement matches Wieland order number 81.020.0002.0.