- Mixed load, 4 contacts Datasheet Features Instantaneous relay Plug-in design with secure locking feature for maximum ease of maintenance double make / double break C/O silver contacts (form Z) gold bifurcated C/O contact Contact life (mechanical) of 00 million cycles -40 C...+80 C operating temperature Contacts cross pollution barrier Weld no transfer function for silver contacts Benefits Description The BM 400 relay has silver double make / double break C/O contacts (form Z) and one gold bifurcated C/O contact The plug-in design offers secure locking feature for maximum ease of maintenance (no wires need to be disconnected or other hardware removed for relay inspection or replacement). The resistance to impact and vibration is conform to standards in force for Railway Transported Equipment. Positive mechanical keying of relay to socket is built into relay and socket during manufacture and terminal identifications are clearly marked on identification plate that is permanently attached to the relay. Proven reliable in heavy duty application silver contacts power contact and gold bifurcated dry circuit contact Long life cycle Easy to maintain and replace Low life cycle cost No maintenance Railway compliancy NF F 6-00 Rolling stock - Instantaneous relays contacts and sockets NF F6-0/0 Fire behaviour - Railway rolling stock The BM 400 relays is pluggable in the following sockets: EA 0 B, EA 0 BF, EA 0 BF, EA 04 B, EA 04 BF, EA 05 BF, EA BF. Application The BM 400 relay is designed for both power levels and low level signals are being switched for general purpose heavy duty applications such as lighting, pumps and fans, as standard weld no transfer design for safety critical applications such as door control, emergency brake failure, interlocking traction and breaking with a gold bifurcated contact for dry circuit signal information.
Functional and connection diagrams Timing diagram Relay pin correspondence Example: BG keying Relay pin correspondence a b c d 4 R P O C B D A S T N E F K J H W V L M G 4 (rear view of relay shown) X U Y Z a b c d N.B. : On 500VDC and 700VDC relays, coil is connected only to D and D4. D and D are not wired and transil or diode protections are not available. N.B. : Transil not needed on VAC coil relays D D D D4 Led (V) option (respect polarity) Connection diagram B A C B A C B A C B A C B A C B A C B A C B A C B A C B4* D A4* C4* B4* D A4* C4* B4* D A4* C4* D D D D D D D4 D4 D4 VDC Models (no Transil protection) VDC Models (with Transil protection) * A4, B4, C4: Gold bifurcated contact All other contacts are Silver VAC Models N.B.: Transil not needed on VAC coil relays.
Coil data - DC versions Keying Unom (VDC) Uoperating (VDC) () Coil resistance tol.: ± 8% at 0 C () Valid for closed relay. Pnom (W) Uhold (VDC) Udrop-out (VDC) R coil (Ω) () L/R (ms) () MEZ 8 / 6.5 6.5.5 40 40 AGZ 4 6 /.5.5.5 70 40 FLZ 6 5 / 45.5.5 90 40 DGZ 48 / 60.5 8.5 4.5 65 40 BGZ 7 48 / 90.5 40.5 6.5 600 40 USZ 96 65 / 0.8 50 9 400 40 EGZ 5 77 / 44.5 60.5 4000 40 FGZ 550 440 / 660 4 00 50 75500 40 UTZ 700 450 / 900 4. 80 60 5000 40 Coil data - AC versions Keying Unom (VAC) Uoperating (VAC) Pnom (VA) Uhold (VAC) Udrop-out (VAC) R coil (Ω) () L/R (ms) () EMZ 7 88 / 4 4 7.5 4000 40 CGZ 0 76 / 4 9 450 40 () Coil resistance tol.: ± 8% at 0 C () Valid for closed relay. Contact data - silver contacts Nominal current A resistive Nominal breaking capacity and life A at 7 VDC L/R : 0 ms Electrical life: 5 x 0 6 op. A at 7 VDC L/R: 0 ms Electrical life:.5 x 0 6 op. A at 0 VAC 50 Hz cosø= Electrical life:.5 x 0 6 op. Lamp filament circuit: 00 W at 7 VDC Electrical life: 5 x 0 5 op. Contact closure time Pick-up time N/O < 55 ms Drop-out* time N/C < 5 ms Contact opening time Pick-up time N/C < 50 ms Drop-out* time N/O < 5 ms Minimum contact continuity 0 ma at 4 VDC Number of contacts double make / double break contacts (form Z) Contact material Hard silver overlay laminated to copper Contact resistance initial 0 mω max at 5 A end of life 40 mω max at 5 A
Contact data - Gold bifurcated contact Number of contacts C/O double break contact Contact design Stationary contacts Bifurcated contact finger design Moveable contacts Solid blade Contact resistance < 0 mω at 5 A (carry only) Maximum contact ratings Operating 0 ma maximum at 7 VDC Carry only (no make and break) 5 ma maximum at 5 VDC Minimum current ratings 5 ma at VDC Electrical life x 0 6 operations Contact material Stationary contacts Solid gold alloy Moveable contacts Gold over hard silver overlay laminated to copper Contact design Bifurcated contact: contact finger design (contacts are in parallel) with wiping action to assure both lowest contact resistance and endurance Change Over double break contacts with Weld No Transfer feature Electrical characteristics Dielectric strength Insulation resistance 000 VAC, min between contacts 600 VAC, min between contacts, coil and frame > 000 MΩ at 500 VDC 4
Mechanical & environmental characteristics Vibration NF F 6-00 The tests are conducted in the X, Y, Z planes at frequency between 0 & 50 cycles (sinusoidal) at g Shock NF F 6-00 Tests are applied in both directions in the X, Y & Z planes. Then successive shocks are administered consisting of the positive component of sinusoidal with a value of 0 g, 8 ms Other vibration and shock tests can be performed on request. Mechanical life > 00 x 0 6 operations Weight 450 g Temperature -40 C...+80 C Humidity 9% RH, 40 C for 4 days Salt mist 5% NaCl, 5 C for 4 days Protection IP40 (relay on socket) Fire & smoke Materials: Polycarbonate (cover) / polyester melamine (base) Note: These materials have been tested for fire propagation and smoke emission according standards NF F 6-0, NF F 6-0. Dimensions (mm) Used with locking brackets Used with wire locking spring 5
Dynamic relay selection curve No AC Current breaking capacity versus life expectancy in millions of cycles. Rate of contacts opening and closing = 00 operations per hour. Curves shown for resistive load (Power Factor = ). Curve 4 VAC 0 5 48 4 60 50 40 0 4 0 0 5 Millions of Cycles,5 0,5 0, 0, 0,5,5 4 5 6 7 8 0 Amps (for silver contacts) 6
Dynamic relay selection curve No DC Current breaking capacity versus life expectancy in millions of cycles. Rate of contacts opening and closing = 00 operations per hour. Curves shown for inductive load - L/R= 0 ms continuous current L/R= 40 ms continuous current * By connecting contacts in series, DC current breaking capacity increases by 50 % Curves - -4 5-7 6-8 VDC 0 5 48 4 60 50 40 0 5 0 5 Millions of Cycles 0 9 8 7 6 5 4 5 6 7 8 4,5 0 0, 0,5 0,5 4 5 6 8 0 Amps (for silver contacts) 7
Dynamic relay selection curve No DC Current breaking capacity versus life expectancy in millions of cycles. Rate of contacts opening and closing = 00 operations per hour. Curves shown for resistive load (L/R = 0). Continuous current. * By connecting contacts in series, DC current breaking capacity increases by 50 % Curve 4 VDC 0 5 48 4 60 50 40 4 0 5 0 Millions of Cycles 5 0 9 8 7 6 5 4,5 0 0, 0,5 0,5 4 5 6 8 0 Amps (for silver contacts) 8
Dynamic relay selection curve No 4 Maximum contact breaking capacity versus voltage for a given L/R. Rate of contacts opening and closing = 600 operations per hour. Curves shown for resistive load (L/R=0) and inductive loads. Continuous current. Life expectancy: Millions of Cycles Curve 4 5 6 L/R= 0ms 5ms 0ms 40ms 60ms 00ms Volts 80 70 60 50 40 0 0 0 00 90 80 70 60 50 40 0 0 0 00 90 80 70 60 50 40 0 0 0 0 4 5 6 4 5 6 7 8 9 0 Amps (for silver contacts) 9
Dynamic relay selection curve No 5 Maximum power interruption versus load time constant (L/R) for a given voltage. Curves shown for resistive loads. I = P/V. Curve 4 5 VDC 0 5 7 48 4 L ms R 00 90 80 70 8.A 5 60 50 40 0 4 8.A 0.4A 0 5 0 50 00 00 00 400 500 600 700 Watts (for silver contacts) 0
Dynamic relay selection curve No 6 AC Current breaking capacity versus life expectancy in millions of cycles. Rate of contacts opening and closing = 00 operations per hour. Values shown for inductive loads - Cos Ø = 0.7 Cos Ø = 0.5 Curves, &5,4 &7 6,9 &0 8, & Cos Ø = 0. VAC 0 5 48 4 60 50 40 0 0 0 0 9 8 Millions of Cycles 5,5 7 6 5 4 0,5 0, 0, 0,5,5 4 5 6 7 8 0 Amps (for silver contacts)
Mounting possiblities / sockets EA 0 B EA 0 BF EA 04 B EA BF Panel/flush mounting EA 0 B EA 0 BF EA 04 B EA 04 BF EA BF Locking bracket (90584), rear connection, double Faston 5 mm Wire locking spring (9685), rear connection, single Faston 5 mm Locking bracket (90584), rear connection, single Faston 5 x 0.8 mm Wire locking spring (9685), rear connection, single Faston 5 x 0.8mm Wire locking spring (9685), rear connection, crimp contact Surface/wall mounting EA 0 BF* EA 05 BF* Wire locking spring (9685), front connection, M screw 6.5 mm ring terminals (,5 mm ) Wire locking spring (9685), front connection, single Faston 5 mm * Mounting possibility on 5 mm rail EN 500 by adding suffix D to the part number (see socket datasheet) Note: Keying of relay to socket can be specified by adding the keying letters in the part number. See all details in the related socket datasheet.
Spare parts Spare parts - order part numbers () () () () LOCKING BRACKET 905846 90584 () SCREW FOR BRACKET METAL STRAP () METAL STRAP (4) C970 P98060 () () () P9806 WIRE LOCKING SPRING 9685 4906654 ROUND PLASTIC PLUGS 4498005 HEX. PLASTIC KEYS 44905678 LOCK PINS ASSY SCREWS 90664 9000 () Parts only for socket () Parts for relay and socket () Parts only for relay
Instructions Installation Install socket and connect wiring correctly according identification to terminals. Plug relay into socket. Reverse installation into socket not possible due to mechanical blocking by snap-lock. Don t reverse polarity of coil connection. Relays can be mounted (tightly) next to each other. and in any attitude Warning! Never use silicon spray near by relays Operation Before operating always apply voltage to coil to check correct operation. Long term storage may corrode the silver on the relay pins. Just by plugging the relay into the socket, the female bifurcated receivers will automatically clean the corrosion on the pins and guarantee a good connection. Do not use the relay in places with flammable gas as the arc generated from switching could ignite gasses. Maintenance Correct operation of relay can easily be checked as transparent cover gives good visibility on the moving contacts. When the relay doesn t seem to operate correct, please check presence of coil voltage. Use a multimeter. If LED is used, coil presence should be indicated. If coil voltage is present, but the relay doesn t work, a short circuit of suppression diode is possible (The coil connection was reversed). If relay doesn t work after inspection, please replace relay unit by a similar model. Send defective relay back to manufacturer. Normal wear and tear excluded. 4
Ordering scheme Configuration: BM 400 4 AGZ S C V F. Relay model. Nominal. Keying 4. Coil 5. Weld 6. LED 7. Cover 8. Language voltage OVP no transfer ind. type (test report) This example represents a BM 400 4 AGZ S C V F. Description: BM 400 series relay, Unom: 4 VDC, Keying AGZ, transil coil protection, weld no transfer, LED indicator, relay cover for wire locking spring, test report in English. Relay model BM 400 &. Nominal voltage and keying VDC = MEZ 4 VDC = AGZ 6 VDC = FLZ 48 VDC = DGZ 7 VDC = BGZ 96 VDC = USZ 5 VDC = EGZ 550 VDC = FGZ 700 VDC = UTZ 7 VAC = EMZ 0 VAC = CGZ 4. Coil overvoltage protection = No coil protection P = Avalance diode coil protection S = Transil coil protection (only with 400 type) 5. Weld no transfer option = Regular double break contacts C = Weld no transfer 6. LED indicator = No LED V = LED voltage indicator 7. Relay cover type = Relay cover with lock pins F = Relay cover forwire locking spring 8. Language on test report = French = English = Spanish 5
MS Relais SAS BM 400 relay-v. Oct 0 Tour Rosny, Avenue du Général de Gaulle, F - 98 Rosny-sous-Bois Cedex, FRANCE T + (0) 48 440, F + (0) 4855 900 E sales@msrelais.com Mors Smitt Asia Ltd. # 807, Billion Trade Centre, Hung To Road Kwun Tong, Kowloon, HONG KONG SAR T +85 4 5555, F +85 4 6555 E info@morssmitt.hk Nieaf-Smitt B.V. Vrieslantlaan 6, 56 AA Utrecht, NETHERLANDS T + (0)0 88, F + (0)0 89 886 E sales@nieaf-smitt.nl Mors Smitt Technologies Inc. 40 Sackett Point Road North Haven, CT 0647, USA T + (0) 87 8858, F + (888) 87 885 E mstechnologies@msrelais.com Mors Smitt UK Ltd. Doulton Road, Cradley Heath West Midlands, B64 5QB, UK T +44 (0)84 567 755, F +44 (0)84 567 70 E info@morssmitt.co.uk (c) Copyright 0 All rights reserved. Nothing from this edition may be multiplied, or made public in any form or manner, either electronically, mechanically, by photocopying, recording, or in any manner, without prior written consent from Mors Smitt. This also applies to accompanying drawings and diagrams. Due to a policy of continuous development Mors Smitt reserves the right to alter the equipment specification and description outlined in this datasheet without prior notice and no part of this publication shall be deemed to be part of any contract for the equipment unless specifically referred to as an inclusion within such contract.