Intermediate Electromagnetic Relays
PE45

Such a type of slow-speed (at switching off from 0,05 to 0,5 s and from 0,4 to 2,5 s) intermediate PE45 relays (DC/AC) with bistable relay has an operable time for relay switching off not less 0,5 s (from the moment of switching on of rated voltage) and not less 0,8 s (from the moment of switching on of the minimum level of the actuating voltage).

Application

The intermediate electromagnetic relays PE45 are intended for using in the protection circuits, control and automation of the electrical power equipment for the switchingof the electric loads in the DC circuit with rated voltage 24 V…230 V and AC circuit with rated voltage 24 V…400 V (50 Hz and 60 Hz).

Working conditions

The range of the working temperature: -40 °С … +55 °С.
Shaking effect:
     - in the range of the frequencies to 15 Hz with an acceleration of 3g;
     - in the range of the frequencies to (15-100) Hz with an acceleration of 1g.

Technical characteristics

Rated voltage of switched circuit, V:      direct current      alternating current	24 - 230 24 - 400
Minimum current of contacts, A:      at a voltage of 24 V      at a voltage of 110 V and more	0,02 0,01
Protection level:      relay      screw terminal	IР40 IР10
Insulation test voltage, V:      among all electrically independent circuits, connected together, and relay enclosure      among electrically independent circuits      among open contacts of each contact sets      between actuating and holding-upcoils	2 500 2 500 1 000 550
Isolation resistance of the dry and pure relay which wasn't in operation , МОм, not less:      relay in cold condition      relay in warm condition	20 6
Mechanical durability, cycles, not less	100 000
Electrical endurance, cycles, not less	50 000

Features

• The number of contacts makes up 6 groups in different combinations (make and break contacts);
• The actuating time of the slow-speed PE45 relay makes up not more than 0,05 s; the release time – from 0,05 s to 0,5 s and from 0,4 s to 2,5 s.
• An operable time for PE45 relay switching off makes up not less 0,5 s (from the moment of switching on of rated voltage) and not less 0,8 s (from the moment of switching on of the minimum level of the actuating voltage).
• The actuating limit of the DC relay is within 0,6-0,7 Urated; and release limit – not less 0,3 Urated (it counteracts the false actuating of the relay);
• The power consumption of the coils not more than 6 W (for DC voltage), not more than 10 VA (for AC voltage), that provides the possibility of the switching-in/switching-off of the relay by means of low-power contacts of the instrument relays;
• The switching capacity of the relay contacts allows to control by the coils of the switching-in/switching-off of the vacuum and oil switches;
• There is the possibility of the visual observation of a condition and movement of contacts without removal of the enclosure (there is a transparent cover in the location of contacts), and also in the version of using module via transparent enclosure;
• Relay construction provides the mounting by means of projection mounting on a vertical surface with the fastening by the screw or on DIN-rail with front/back wires connection (in the same version without additional details, studs, etc.). Working position in the space – any;
• Incombustibility and fire resisting property according to requirements for the devices which are not serviced during warranty period:
  - enclosure: to 650 °С;
  - terminal blocks and units holding current-carrying parts: to 960°С;
• Taking into account the immunity to mechanical influences and main parameters, the relays are suitable for application on nuclear power plants;
• Relay outputs allow to connect two wires with section 0,12‑1,5 mm² (solder contact) and 0,75‑2,5 mm² (screw terminal);
• Relay contacts: make contacts and break contacts;
• Connection circuits, outside dimensions, linkage dimensions, contacts combination (kind and quantity) of the relays PE45 сcorrespond and provide possible replacement relays RP18‑4, RP18‑5, RP18‑6, RP18‑7, RP18‑8, RP18‑9, RP18‑0, RP252, RP256, REP37‑121, REP37‑221, REP96‑4, REP96‑5, REP96‑6 and relay PE45-20-50 corresponds to relays RP252, RP256 in full.

Outside dimensions

Connection diagram

Rated parameters of the relay PE45-		Actuating coil				Holding-up coil	Actuating / / release
-20	Urated, V	=110 DC	=220 DC	~100 AC	~220 (230) AC	=48 DC	not more than 0,8 / / not less 0,15(Irated); not more than 0,8 / / not less 0,15 Urated
	Z=Ra, Оm	1950	4550	2150	4850	1450
	P, W	6,3	10,7	4,7	10	1,6

Rated parameters of the relay PE45-		Actuating coil						Holding-up coil	Actuating / / release
-21	(Irated, А), Urated, V	0,25	0,5	1,0	2,0	4,0	8,0	48	not more than 0,8 / / not less 0,15(Irated); not more than 0,8 / / not less 0,15 Urated
	Ra, Оm	53	11	2,3	0,5	0,13	0,04	1450
	Р, W	1						1,6

Convention structure of the type of the relay (PE40 – PE45) at the order

At the order of the relay it is necessary to indicate additionally: rated voltage (Urated) and rated current (Irated) of the coils (look at the table above), the way of the external wires connection (front/back), the way of the relay mounting (DIN-rail, screw terminal). At the order of the module (separate from the relay) it is necessary to indicate the voltage of the relay coils (look at the table above).

Mounting on the DIN-rail

Additional module